* Note that this bit being true does not automatically mean that * such raw binary content indeed exists; just that it may exist. * This because header is written before any binary data may be * written. */ public final static int HEADER_BIT_HAS_RAW_BINARY = 0x04; /* /********************************************************** /* Type prefixes: 3 MSB of token byte /********************************************************** */ public final static int TOKEN_PREFIX_INTEGER = 0x24; public final static int TOKEN_PREFIX_FP = 0x28; // Shared strings are back references for last 63 short (< 64 byte) string values // NOTE: 0x00 is reserved, not used with current version (may be used in future) public final static int TOKEN_PREFIX_SHARED_STRING_SHORT = 0x00; // literals are put between 0x20 and 0x3F to reserve markers (smiley), along with ints/doubles //public final static int TOKEN_PREFIX_MISC_NUMBERS = 0x20; public final static int TOKEN_PREFIX_SHARED_STRING_LONG = 0xEC; public final static int TOKEN_PREFIX_TINY_ASCII = 0x40; public final static int TOKEN_PREFIX_SMALL_ASCII = 0x60; public final static int TOKEN_PREFIX_TINY_UNICODE = 0x80; public final static int TOKEN_PREFIX_SHORT_UNICODE = 0xA0; // Small ints are 4-bit (-16 to +15) integer constants public final static int TOKEN_PREFIX_SMALL_INT = 0xC0; // And misc types have empty at the end too, to reserve 0xF8 - 0xFF public final static int TOKEN_PREFIX_MISC_OTHER = 0xE0; /* /********************************************************** /* Token literals, normal mode /********************************************************** */ // First, non-structured literals public final static byte TOKEN_LITERAL_EMPTY_STRING = 0x20; public final static byte TOKEN_LITERAL_NULL = 0x21; public final static byte TOKEN_LITERAL_FALSE = 0x22; public final static byte TOKEN_LITERAL_TRUE = 0x23; // And then structured literals public final static byte TOKEN_LITERAL_START_ARRAY = (byte) 0xF8; public final static byte TOKEN_LITERAL_END_ARRAY = (byte) 0xF9; public final static byte TOKEN_LITERAL_START_OBJECT = (byte) 0xFA; public final static byte TOKEN_LITERAL_END_OBJECT = (byte) 0xFB; /* /********************************************************** /* Subtype constants for misc text/binary types /********************************************************** */ /** * @deprecated Since 2.1, use {@link #TOKEN_PREFIX_INTEGER} instead */ @Deprecated public final static int TOKEN_MISC_INTEGER = 0x24; /** * @deprecated Since 2.1, use {@link #TOKEN_PREFIX_FP} instead */ @Deprecated public final static int TOKEN_MISC_FP = 0x28; /** * Type (for misc, other) used for * variable length UTF-8 encoded text, when it is known to only contain ASCII chars. * Note: 2 LSB are reserved for future use; must be zeroes for now */ public final static byte TOKEN_MISC_LONG_TEXT_ASCII = (byte) 0xE0; /** * Type (for misc, other) used * for variable length UTF-8 encoded text, when it is NOT known to only contain ASCII chars * (which means it MAY have multi-byte characters) * Note: 2 LSB are reserved for future use; must be zeroes for now */ public final static byte TOKEN_MISC_LONG_TEXT_UNICODE = (byte) 0xE4; /** * Type (for misc, other) used * for "safe" (encoded by only using 7 LSB, giving 8/7 expansion ratio). * This is usually done to ensure that certain bytes are never included * in encoded data (like 0xFF) * Note: 2 LSB are reserved for future use; must be zeroes for now */ public final static byte TOKEN_MISC_BINARY_7BIT = (byte) 0xE8; /** * @deprecated (since 2.1) Use {@link #TOKEN_PREFIX_SHARED_STRING_LONG} instead */ @Deprecated public final static byte A_TOKEN_MISC_SHARED_STRING_LONG = (byte) 0xEC; /** * Raw binary data marker is specifically chosen as separate from * other types, since it can have significant impact on framing * (or rather fast scanning based on structure and framing markers). */ public final static byte TOKEN_MISC_BINARY_RAW = (byte) 0xFD; /* /********************************************************** /* Modifiers for numeric entries /********************************************************** */ /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_INTEGER}, * indicating 32-bit integer (int) */ public final static int TOKEN_MISC_INTEGER_32 = 0x00; /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_INTEGER}, * indicating 32-bit integer (long) */ public final static int TOKEN_MISC_INTEGER_64 = 0x01; /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_INTEGER}, * indicating {@link java.math.BigInteger} type. */ public final static int TOKEN_MISC_INTEGER_BIG = 0x02; // Note: type 3 (0xF3) reserved for future use /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_FP}, * indicating 32-bit IEEE single precision floating point number. */ public final static int TOKEN_MISC_FLOAT_32 = 0x00; /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_FP}, * indicating 64-bit IEEE double precision floating point number. */ public final static int TOKEN_MISC_FLOAT_64 = 0x01; /** * Numeric subtype (2 LSB) for {@link #TOKEN_MISC_FP}, * indicating {@link java.math.BigDecimal} type. */ public final static int TOKEN_MISC_FLOAT_BIG = 0x02; // Note: type 3 (0xF7) reserved for future use /* /********************************************************** /* Token types for keys /********************************************************** */ /** * Let's use same code for empty key as for empty String value */ public final static byte TOKEN_KEY_EMPTY_STRING = 0x20; public final static int TOKEN_PREFIX_KEY_SHARED_LONG = 0x30; public final static byte TOKEN_KEY_LONG_STRING = 0x34; public final static int TOKEN_PREFIX_KEY_SHARED_SHORT = 0x40; public final static int TOKEN_PREFIX_KEY_ASCII = 0x80; public final static int TOKEN_PREFIX_KEY_UNICODE = 0xC0; /* /********************************************************** /* Basic UTF-8 decode/encode table /********************************************************** */ /** * Additionally we can combine UTF-8 decoding info into similar * data table. * Values indicate "byte length - 1"; meaning -1 is used for * invalid bytes, 0 for single-byte codes, 1 for 2-byte codes * and 2 for 3-byte codes. */ public final static int[] sUtf8UnitLengths; static { int[] table = new int[256]; for (int c = 128; c < 256; ++c) { int code; // We'll add number of bytes needed for decoding if ((c & 0xE0) == 0xC0) { // 2 bytes (0x0080 - 0x07FF) code = 1; } else if ((c & 0xF0) == 0xE0) { // 3 bytes (0x0800 - 0xFFFF) code = 2; } else if ((c & 0xF8) == 0xF0) { // 4 bytes; double-char with surrogates and all... code = 3; } else { // And -1 seems like a good "universal" error marker... code = -1; } table[c] = code; } sUtf8UnitLengths = table; } } SmileFactory.java 0000664 0000000 0000000 00000043572 12150774126 0040560 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile package com.fasterxml.jackson.dataformat.smile; import java.io.*; import java.net.URL; import com.fasterxml.jackson.core.*; import com.fasterxml.jackson.core.format.InputAccessor; import com.fasterxml.jackson.core.format.MatchStrength; import com.fasterxml.jackson.core.io.IOContext; /** * Factory used for constructing {@link SmileParser} and {@link SmileGenerator} * instances; both of which handle * Smile encoded data. *
* Extends {@link JsonFactory} mostly so that users can actually use it in place * of regular non-Smile factory instances. *
* Note on using non-byte-based sources/targets (char based, like * {@link java.io.Reader} and {@link java.io.Writer}): these can not be * used for Smile-format documents, and thus will either downgrade to * textual JSON (when parsing), or throw exception (when trying to create * generator). * * @author Tatu Saloranta */ public class SmileFactory extends JsonFactory { private static final long serialVersionUID = -1696783009312472365L; /* /********************************************************** /* Constants /********************************************************** */ /** * Name used to identify Smile format. * (and returned by {@link #getFormatName()} */ public final static String FORMAT_NAME_SMILE = "Smile"; /** * Bitfield (set of flags) of all parser features that are enabled * by default. */ final static int DEFAULT_SMILE_PARSER_FEATURE_FLAGS = SmileParser.Feature.collectDefaults(); /** * Bitfield (set of flags) of all generator features that are enabled * by default. */ final static int DEFAULT_SMILE_GENERATOR_FEATURE_FLAGS = SmileGenerator.Feature.collectDefaults(); /* /********************************************************** /* Configuration /********************************************************** */ /** * Whether non-supported methods (ones trying to output using * char-based targets like {@link java.io.Writer}, for example) * should be delegated to regular Jackson JSON processing * (if set to true); or throw {@link UnsupportedOperationException} * (if set to false) */ protected boolean _cfgDelegateToTextual; protected int _smileParserFeatures; protected int _smileGeneratorFeatures; /* /********************************************************** /* Factory construction, configuration /********************************************************** */ /** * Default constructor used to create factory instances. * Creation of a factory instance is a light-weight operation, * but it is still a good idea to reuse limited number of * factory instances (and quite often just a single instance): * factories are used as context for storing some reused * processing objects (such as symbol tables parsers use) * and this reuse only works within context of a single * factory instance. */ public SmileFactory() { this(null); } public SmileFactory(ObjectCodec oc) { super(oc); _smileParserFeatures = DEFAULT_SMILE_PARSER_FEATURE_FLAGS; _smileGeneratorFeatures = DEFAULT_SMILE_GENERATOR_FEATURE_FLAGS; } /** * Note: REQUIRES 2.2.1 -- unfortunate intra-patch dep but seems * preferable to just leaving bug be as is * * @since 2.2.1 */ public SmileFactory(SmileFactory src, ObjectCodec oc) { super(src, oc); _cfgDelegateToTextual = src._cfgDelegateToTextual; _smileParserFeatures = src._smileParserFeatures; _smileGeneratorFeatures = src._smileGeneratorFeatures; } // @since 2.1 @Override public SmileFactory copy() { _checkInvalidCopy(SmileFactory.class); // note: as with base class, must NOT copy mapper reference return new SmileFactory(this, null); } public void delegateToTextual(boolean state) { _cfgDelegateToTextual = state; } /* /********************************************************** /* Serializable overrides /********************************************************** */ /** * Method that we need to override to actually make restoration go * through constructors etc. * Also: must be overridden by sub-classes as well. */ @Override protected Object readResolve() { return new SmileFactory(this, _objectCodec); } /* /********************************************************** /* Versioned /********************************************************** */ @Override public Version version() { return PackageVersion.VERSION; } /* /********************************************************** /* Format detection functionality (since 1.8) /********************************************************** */ @Override public String getFormatName() { return FORMAT_NAME_SMILE; } // Defaults work fine for this: // public boolean canUseSchema(FormatSchema schema) { } /** * Sub-classes need to override this method (as of 1.8) */ @Override public MatchStrength hasFormat(InputAccessor acc) throws IOException { return SmileParserBootstrapper.hasSmileFormat(acc); } /* /********************************************************** /* Configuration, parser settings /********************************************************** */ /** * Method for enabling or disabling specified parser feature * (check {@link SmileParser.Feature} for list of features) */ public final SmileFactory configure(SmileParser.Feature f, boolean state) { if (state) { enable(f); } else { disable(f); } return this; } /** * Method for enabling specified parser feature * (check {@link SmileParser.Feature} for list of features) */ public SmileFactory enable(SmileParser.Feature f) { _smileParserFeatures |= f.getMask(); return this; } /** * Method for disabling specified parser features * (check {@link SmileParser.Feature} for list of features) */ public SmileFactory disable(SmileParser.Feature f) { _smileParserFeatures &= ~f.getMask(); return this; } /** * Checked whether specified parser feature is enabled. */ public final boolean isEnabled(SmileParser.Feature f) { return (_smileParserFeatures & f.getMask()) != 0; } /* /********************************************************** /* Configuration, generator settings /********************************************************** */ /** * Method for enabling or disabling specified generator feature * (check {@link SmileGenerator.Feature} for list of features) * * @since 1.2 */ public final SmileFactory configure(SmileGenerator.Feature f, boolean state) { if (state) { enable(f); } else { disable(f); } return this; } /** * Method for enabling specified generator features * (check {@link SmileGenerator.Feature} for list of features) */ public SmileFactory enable(SmileGenerator.Feature f) { _smileGeneratorFeatures |= f.getMask(); return this; } /** * Method for disabling specified generator feature * (check {@link SmileGenerator.Feature} for list of features) */ public SmileFactory disable(SmileGenerator.Feature f) { _smileGeneratorFeatures &= ~f.getMask(); return this; } /** * Check whether specified generator feature is enabled. */ public final boolean isEnabled(SmileGenerator.Feature f) { return (_smileGeneratorFeatures & f.getMask()) != 0; } /* /********************************************************** /* Overridden parser factory methods, new (2.1) /********************************************************** */ @Override public SmileParser createParser(File f) throws IOException, JsonParseException { return _createParser(new FileInputStream(f), _createContext(f, true)); } @Override public SmileParser createParser(URL url) throws IOException, JsonParseException { return _createParser(_optimizedStreamFromURL(url), _createContext(url, true)); } @Override public SmileParser createParser(InputStream in) throws IOException, JsonParseException { return _createParser(in, _createContext(in, false)); } //public JsonParser createJsonParser(Reader r) @Override public SmileParser createParser(byte[] data) throws IOException, JsonParseException { IOContext ctxt = _createContext(data, true); return _createParser(data, 0, data.length, ctxt); } @Override public SmileParser createParser(byte[] data, int offset, int len) throws IOException, JsonParseException { return _createParser(data, offset, len, _createContext(data, true)); } /* /********************************************************** /* Overridden parser factory methods, old (pre-2.1) /********************************************************** */ /** * @deprecated Since 2.1 Use {@link #createParser(File)} instead * @since 2.1 */ @Deprecated @Override public SmileParser createJsonParser(File f) throws IOException, JsonParseException { return _createParser(new FileInputStream(f), _createContext(f, true)); } /** * @deprecated Since 2.1 Use {@link #createParser(URL)} instead * @since 2.1 */ @Deprecated @Override public SmileParser createJsonParser(URL url) throws IOException, JsonParseException { return _createParser(_optimizedStreamFromURL(url), _createContext(url, true)); } /** * @deprecated Since 2.1 Use {@link #createParser(InputStream)} instead * @since 2.1 */ @Deprecated @Override public SmileParser createJsonParser(InputStream in) throws IOException, JsonParseException { return _createParser(in, _createContext(in, false)); } //public JsonParser createJsonParser(Reader r) /** * @deprecated Since 2.1 Use {@link #createParser(byte[])} instead * @since 2.1 */ @Deprecated @Override public SmileParser createJsonParser(byte[] data) throws IOException, JsonParseException { IOContext ctxt = _createContext(data, true); return _createParser(data, 0, data.length, ctxt); } /** * @deprecated Since 2.1 Use {@link #createParser(byte[],int,int)} instead * @since 2.1 */ @Deprecated @Override public SmileParser createJsonParser(byte[] data, int offset, int len) throws IOException, JsonParseException { return _createParser(data, offset, len, _createContext(data, true)); } /* /********************************************************** /* Overridden generator factory methods, new (2.1) /********************************************************** */ /** * Method for constructing {@link JsonGenerator} for generating * Smile-encoded output. *
* Since Smile format always uses UTF-8 internally, enc
* argument is ignored.
*/
@Override
public SmileGenerator createGenerator(OutputStream out, JsonEncoding enc)
throws IOException
{
// false -> we won't manage the stream unless explicitly directed to
return _createGenerator(out, _createContext(out, false));
}
/**
* Method for constructing {@link JsonGenerator} for generating
* Smile-encoded output.
*
* Since Smile format always uses UTF-8 internally, no encoding need * to be passed to this method. */ @Override public SmileGenerator createGenerator(OutputStream out) throws IOException { // false -> we won't manage the stream unless explicitly directed to return _createGenerator(out, _createContext(out, false)); } /* /********************************************************** /* Overridden generator factory methods, old (pre-2.1) /********************************************************** */ /** * @deprecated Since 2.1 Use {@link #createGenerator(OutputStream)} instead * @since 2.1 */ @Deprecated @Override public SmileGenerator createJsonGenerator(OutputStream out, JsonEncoding enc) throws IOException { // false -> we won't manage the stream unless explicitly directed to return _createGenerator(out, _createContext(out, false)); } /** * @deprecated Since 2.1 Use {@link #createGenerator(OutputStream)} instead * @since 2.1 */ @Deprecated @Override public SmileGenerator createJsonGenerator(OutputStream out) throws IOException { // false -> we won't manage the stream unless explicitly directed to IOContext ctxt = _createContext(out, false); return _createGenerator(out, ctxt); } @Deprecated @Override protected SmileGenerator _createUTF8JsonGenerator(OutputStream out, IOContext ctxt) throws IOException { return _createGenerator(out, ctxt); } /* /****************************************************** /* Overridden internal factory methods /****************************************************** */ //protected IOContext _createContext(Object srcRef, boolean resourceManaged) /** * Overridable factory method that actually instantiates desired * parser. */ @Override protected SmileParser _createParser(InputStream in, IOContext ctxt) throws IOException, JsonParseException { return new SmileParserBootstrapper(ctxt, in).constructParser(_parserFeatures, _smileParserFeatures, isEnabled(JsonFactory.Feature.INTERN_FIELD_NAMES), _objectCodec, _rootByteSymbols); } /** * Overridable factory method that actually instantiates desired * parser. */ @Override protected JsonParser _createParser(Reader r, IOContext ctxt) throws IOException, JsonParseException { if (_cfgDelegateToTextual) { return super._createParser(r, ctxt); } throw new UnsupportedOperationException("Can not create generator for non-byte-based target"); } /** * Overridable factory method that actually instantiates desired * parser. */ @Override protected SmileParser _createParser(byte[] data, int offset, int len, IOContext ctxt) throws IOException, JsonParseException { return new SmileParserBootstrapper(ctxt, data, offset, len).constructParser( _parserFeatures, _smileParserFeatures, isEnabled(JsonFactory.Feature.INTERN_FIELD_NAMES), _objectCodec, _rootByteSymbols); } /** * Overridable factory method that actually instantiates desired * generator. */ @Override protected JsonGenerator _createGenerator(Writer out, IOContext ctxt) throws IOException { if (_cfgDelegateToTextual) { return super._createGenerator(out, ctxt); } throw new UnsupportedOperationException("Can not create generator for non-byte-based target"); } @Override protected JsonGenerator _createUTF8Generator(OutputStream out, IOContext ctxt) throws IOException { return _createGenerator(out, ctxt); } //public BufferRecycler _getBufferRecycler() @Override protected Writer _createWriter(OutputStream out, JsonEncoding enc, IOContext ctxt) throws IOException { if (_cfgDelegateToTextual) { return super._createWriter(out, enc, ctxt); } throw new UnsupportedOperationException("Can not create generator for non-byte-based target"); } /* /********************************************************** /* Internal methods /********************************************************** */ protected SmileGenerator _createGenerator(OutputStream out, IOContext ctxt) throws IOException { int feats = _smileGeneratorFeatures; /* One sanity check: MUST write header if shared string values setting is enabled, * or quoting of binary data disabled. * But should we force writing, or throw exception, if settings are in conflict? * For now, let's error out... */ SmileGenerator gen = new SmileGenerator(ctxt, _generatorFeatures, feats, _objectCodec, out); if ((feats & SmileGenerator.Feature.WRITE_HEADER.getMask()) != 0) { gen.writeHeader(); } else { if ((feats & SmileGenerator.Feature.CHECK_SHARED_STRING_VALUES.getMask()) != 0) { throw new JsonGenerationException( "Inconsistent settings: WRITE_HEADER disabled, but CHECK_SHARED_STRING_VALUES enabled; can not construct generator" +" due to possible data loss (either enable WRITE_HEADER, or disable CHECK_SHARED_STRING_VALUES to resolve)"); } if ((feats & SmileGenerator.Feature.ENCODE_BINARY_AS_7BIT.getMask()) == 0) { throw new JsonGenerationException( "Inconsistent settings: WRITE_HEADER disabled, but ENCODE_BINARY_AS_7BIT disabled; can not construct generator" +" due to possible data loss (either enable WRITE_HEADER, or ENCODE_BINARY_AS_7BIT to resolve)"); } } return gen; } } SmileGenerator.java 0000664 0000000 0000000 00000256310 12150774126 0041073 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile package com.fasterxml.jackson.dataformat.smile; import java.io.*; import java.lang.ref.SoftReference; import java.math.BigDecimal; import java.math.BigInteger; import java.util.Arrays; import com.fasterxml.jackson.core.*; import com.fasterxml.jackson.core.io.*; import com.fasterxml.jackson.core.json.JsonWriteContext; import com.fasterxml.jackson.core.base.GeneratorBase; import static com.fasterxml.jackson.dataformat.smile.SmileConstants.*; /** * {@link JsonGenerator} implementation for the experimental "Binary JSON Infoset". * * @author tatu */ public class SmileGenerator extends GeneratorBase { /** * Enumeration that defines all togglable features for Smile generators. */ public enum Feature { /** * Whether to write 4-byte header sequence when starting output or not. * If disabled, no header is written; this may be useful in embedded cases * where context is enough to know that content is encoded using this format. * Note, however, that omitting header means that default settings for * shared names/string values can not be changed. *
* Default setting is true, meaning that header will be written. */ WRITE_HEADER(true), /** * Whether write byte marker that signifies end of logical content segment * ({@link SmileConstants#BYTE_MARKER_END_OF_CONTENT}) when * {@link #close} is called or not. This can be useful when outputting * multiple adjacent logical content segments (documents) into single * physical output unit (file). *
* Default setting is false meaning that such marker is not written. */ WRITE_END_MARKER(false), /** * Whether to use simple 7-bit per byte encoding for binary content when output. * This is necessary ensure that byte 0xFF will never be included in content output. * For other data types this limitation is handled automatically; but since overhead * for binary data (14% size expansion, processing overhead) is non-negligible, * it is not enabled by default. If no binary data is output, feature has no effect. *
* Default setting is true, indicating that binary data is quoted as 7-bit bytes * instead of written raw. */ ENCODE_BINARY_AS_7BIT(true), /** * Whether generator should check if it can "share" field names during generating * content or not. If enabled, can replace repeating field names with back references, * which are more compact and should faster to decode. Downside is that there is some * overhead for writing (need to track existing values, check), as well as decoding. *
* Since field names tend to repeat quite often, this setting is enabled by default. */ CHECK_SHARED_NAMES(true), /** * Whether generator should check if it can "share" short (at most 64 bytes encoded) * String value during generating * content or not. If enabled, can replace repeating Short String values with back references, * which are more compact and should faster to decode. Downside is that there is some * overhead for writing (need to track existing values, check), as well as decoding. *
* Since efficiency of this option depends a lot on type of content being produced, * this option is disabled by default, and should only be enabled if it is likely that * same values repeat relatively often. */ CHECK_SHARED_STRING_VALUES(false) ; protected final boolean _defaultState; protected final int _mask; /** * Method that calculates bit set (flags) of all features that * are enabled by default. */ public static int collectDefaults() { int flags = 0; for (Feature f : values()) { if (f.enabledByDefault()) { flags |= f.getMask(); } } return flags; } private Feature(boolean defaultState) { _defaultState = defaultState; _mask = (1 << ordinal()); } public boolean enabledByDefault() { return _defaultState; } public int getMask() { return _mask; } } /** * Helper class used for keeping track of possibly shareable String * references (for field names and/or short String values) */ protected final static class SharedStringNode { public final String value; public final int index; public SharedStringNode next; public SharedStringNode(String value, int index, SharedStringNode next) { this.value = value; this.index = index; this.next = next; } } /** * To simplify certain operations, we require output buffer length * to allow outputting of contiguous 256 character UTF-8 encoded String * value. Length of the longest UTF-8 code point (from Java char) is 3 bytes, * and we need both initial token byte and single-byte end marker * so we get following value. *
* Note: actually we could live with shorter one; absolute minimum would
* be for encoding 64-character Strings.
*/
private final static int MIN_BUFFER_LENGTH = (3 * 256) + 2;
protected final static byte TOKEN_BYTE_LONG_STRING_ASCII = TOKEN_MISC_LONG_TEXT_ASCII;
protected final static byte TOKEN_BYTE_INT_32 = (byte) (SmileConstants.TOKEN_PREFIX_INTEGER + TOKEN_MISC_INTEGER_32);
protected final static byte TOKEN_BYTE_INT_64 = (byte) (SmileConstants.TOKEN_PREFIX_INTEGER + TOKEN_MISC_INTEGER_64);
protected final static byte TOKEN_BYTE_BIG_INTEGER = (byte) (SmileConstants.TOKEN_PREFIX_INTEGER + TOKEN_MISC_INTEGER_BIG);
protected final static byte TOKEN_BYTE_FLOAT_32 = (byte) (SmileConstants.TOKEN_PREFIX_FP | TOKEN_MISC_FLOAT_32);
protected final static byte TOKEN_BYTE_FLOAT_64 = (byte) (SmileConstants.TOKEN_PREFIX_FP | TOKEN_MISC_FLOAT_64);
protected final static byte TOKEN_BYTE_BIG_DECIMAL = (byte) (SmileConstants.TOKEN_PREFIX_FP | TOKEN_MISC_FLOAT_BIG);
protected final static int SURR1_FIRST = 0xD800;
protected final static int SURR1_LAST = 0xDBFF;
protected final static int SURR2_FIRST = 0xDC00;
protected final static int SURR2_LAST = 0xDFFF;
protected final static long MIN_INT_AS_LONG = (long) Integer.MIN_VALUE;
protected final static long MAX_INT_AS_LONG = (long) Integer.MAX_VALUE;
/*
/**********************************************************
/* Configuration
/**********************************************************
*/
final protected IOContext _ioContext;
final protected OutputStream _out;
/**
* Bit flag composed of bits that indicate which
* {@link com.fasterxml.jackson.dataformat.smile.SmileGenerator.Feature}s
* are enabled.
*/
protected int _smileFeatures;
/**
* Helper object used for low-level recycling of Smile-generator
* specific buffers.
*/
final protected SmileBufferRecycler
* NOTE: only use this method if you really know what you are doing.
*/
public void writeRaw(byte b) throws IOException, JsonGenerationException
{
_writeByte(TOKEN_LITERAL_START_ARRAY);
}
/**
* Method for directly inserting specified bytes in output at
* current position.
*
* NOTE: only use this method if you really know what you are doing.
*/
public void writeBytes(byte[] data, int offset, int len) throws IOException
{
_writeBytes(data, offset, len);
}
/*
/**********************************************************
/* Output method implementations, structural
/**********************************************************
*/
@Override
public final void writeStartArray() throws IOException, JsonGenerationException
{
_verifyValueWrite("start an array");
_writeContext = _writeContext.createChildArrayContext();
_writeByte(TOKEN_LITERAL_START_ARRAY);
}
@Override
public final void writeEndArray() throws IOException, JsonGenerationException
{
if (!_writeContext.inArray()) {
_reportError("Current context not an ARRAY but "+_writeContext.getTypeDesc());
}
_writeByte(TOKEN_LITERAL_END_ARRAY);
_writeContext = _writeContext.getParent();
}
@Override
public final void writeStartObject() throws IOException, JsonGenerationException
{
_verifyValueWrite("start an object");
_writeContext = _writeContext.createChildObjectContext();
_writeByte(TOKEN_LITERAL_START_OBJECT);
}
@Override
public final void writeEndObject() throws IOException, JsonGenerationException
{
if (!_writeContext.inObject()) {
_reportError("Current context not an object but "+_writeContext.getTypeDesc());
}
_writeContext = _writeContext.getParent();
_writeByte(TOKEN_LITERAL_END_OBJECT);
}
private final void _writeFieldName(String name)
throws IOException, JsonGenerationException
{
int len = name.length();
if (len == 0) {
_writeByte(TOKEN_KEY_EMPTY_STRING);
return;
}
// First: is it something we can share?
if (_seenNameCount >= 0) {
int ix = _findSeenName(name);
if (ix >= 0) {
_writeSharedNameReference(ix);
return;
}
}
if (len > MAX_SHORT_NAME_UNICODE_BYTES) { // can not be a 'short' String; off-line (rare case)
_writeNonShortFieldName(name, len);
return;
}
// first: ensure we have enough space
if ((_outputTail + MIN_BUFFER_FOR_POSSIBLE_SHORT_STRING) >= _outputEnd) {
_flushBuffer();
}
// then let's copy String chars to char buffer, faster than using getChar (measured, profiled)
name.getChars(0, len, _charBuffer, 0);
int origOffset = _outputTail;
++_outputTail; // to reserve space for type token
int byteLen = _shortUTF8Encode(_charBuffer, 0, len);
byte typeToken;
// ASCII?
if (byteLen == len) {
if (byteLen <= MAX_SHORT_NAME_ASCII_BYTES) { // yes, is short indeed
typeToken = (byte) ((TOKEN_PREFIX_KEY_ASCII - 1) + byteLen);
} else { // longer albeit ASCII
typeToken = TOKEN_KEY_LONG_STRING;
// and we will need String end marker byte
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
} else { // not all ASCII
if (byteLen <= MAX_SHORT_NAME_UNICODE_BYTES) { // yes, is short indeed
// note: since 2 is smaller allowed length, offset differs from one used for
typeToken = (byte) ((TOKEN_PREFIX_KEY_UNICODE - 2) + byteLen);
} else { // nope, longer non-ASCII Strings
typeToken = TOKEN_KEY_LONG_STRING;
// and we will need String end marker byte
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
}
// and then sneak in type token now that know the details
_outputBuffer[origOffset] = typeToken;
// Also, keep track if we can use back-references (shared names)
if (_seenNameCount >= 0) {
_addSeenName(name);
}
}
private final void _writeNonShortFieldName(final String name, final int len)
throws IOException, JsonGenerationException
{
_writeByte(TOKEN_KEY_LONG_STRING);
// can we still make a temp copy?
if (len > _charBufferLength) { // nah, not even that
_slowUTF8Encode(name);
} else { // yep.
name.getChars(0, len, _charBuffer, 0);
// but will encoded version fit in buffer?
int maxLen = len + len + len;
if (maxLen <= _outputBuffer.length) { // yes indeed
if ((_outputTail + maxLen) >= _outputEnd) {
_flushBuffer();
}
_shortUTF8Encode(_charBuffer, 0, len);
} else { // nope, need bit slower variant
_mediumUTF8Encode(_charBuffer, 0, len);
}
}
if (_seenNameCount >= 0) {
_addSeenName(name);
}
if (_outputTail >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
protected final void _writeFieldName(SerializableString name)
throws IOException, JsonGenerationException
{
final int charLen = name.charLength();
if (charLen == 0) {
_writeByte(TOKEN_KEY_EMPTY_STRING);
return;
}
// Then: is it something we can share?
if (_seenNameCount >= 0) {
int ix = _findSeenName(name.getValue());
if (ix >= 0) {
_writeSharedNameReference(ix);
return;
}
}
final byte[] bytes = name.asUnquotedUTF8();
final int byteLen = bytes.length;
if (byteLen != charLen) {
_writeFieldNameUnicode(name, bytes);
return;
}
// Common case: short ASCII name that fits in buffer as is
if (byteLen <= MAX_SHORT_NAME_ASCII_BYTES) {
// output buffer is bigger than what we need, always, so
if ((_outputTail + byteLen) >= _outputEnd) { // need marker byte and actual bytes
_flushBuffer();
}
_outputBuffer[_outputTail++] = (byte) ((TOKEN_PREFIX_KEY_ASCII - 1) + byteLen);
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
} else {
_writeLongAsciiFieldName(bytes);
}
// Also, keep track if we can use back-references (shared names)
if (_seenNameCount >= 0) {
_addSeenName(name.getValue());
}
}
private final void _writeLongAsciiFieldName(byte[] bytes)
throws IOException, JsonGenerationException
{
final int byteLen = bytes.length;
if (_outputTail >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = TOKEN_KEY_LONG_STRING;
// Ok. Enough room?
if ((_outputTail + byteLen + 1) < _outputEnd) {
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
} else {
_flushBuffer();
// either way, do intermediate copy if name is relatively short
// Need to copy?
if (byteLen < MIN_BUFFER_LENGTH) {
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
} else {
// otherwise, just write as is
if (_outputTail > 0) {
_flushBuffer();
}
_out.write(bytes, 0, byteLen);
}
}
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
protected final void _writeFieldNameUnicode(SerializableString name, byte[] bytes)
throws IOException, JsonGenerationException
{
final int byteLen = bytes.length;
// Common case: short Unicode name that fits in output buffer
if (byteLen <= MAX_SHORT_NAME_UNICODE_BYTES) {
if ((_outputTail + byteLen) >= _outputEnd) { // need marker byte and actual bytes
_flushBuffer();
}
// note: since 2 is smaller allowed length, offset differs from one used for
_outputBuffer[_outputTail++] = (byte) ((TOKEN_PREFIX_KEY_UNICODE - 2) + byteLen);
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
// Also, keep track if we can use back-references (shared names)
if (_seenNameCount >= 0) {
_addSeenName(name.getValue());
}
return;
}
if (_outputTail >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = TOKEN_KEY_LONG_STRING;
// Ok. Enough room?
if ((_outputTail + byteLen + 1) < _outputEnd) {
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
} else {
_flushBuffer();
// either way, do intermediate copy if name is relatively short
// Need to copy?
if (byteLen < MIN_BUFFER_LENGTH) {
System.arraycopy(bytes, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
} else {
// otherwise, just write as is
if (_outputTail > 0) {
_flushBuffer();
}
_out.write(bytes, 0, byteLen);
}
}
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
// Also, keep track if we can use back-references (shared names)
if (_seenNameCount >= 0) {
_addSeenName(name.getValue());
}
}
private final void _writeSharedNameReference(int ix)
throws IOException,JsonGenerationException
{
// 03-Mar-2011, tatu: Related to [JACKSON-525], let's add a sanity check here
if (ix >= _seenNameCount) {
throw new IllegalArgumentException("Internal error: trying to write shared name with index "+ix
+"; but have only seen "+_seenNameCount+" so far!");
}
if (ix < 64) {
_writeByte((byte) (TOKEN_PREFIX_KEY_SHARED_SHORT + ix));
} else {
_writeBytes(((byte) (TOKEN_PREFIX_KEY_SHARED_LONG + (ix >> 8))), (byte) ix);
}
}
/*
/**********************************************************
/* Output method implementations, textual
/**********************************************************
*/
@Override
public void writeString(String text) throws IOException,JsonGenerationException
{
if (text == null) {
writeNull();
return;
}
_verifyValueWrite("write String value");
int len = text.length();
if (len == 0) {
_writeByte(TOKEN_LITERAL_EMPTY_STRING);
return;
}
// Longer string handling off-lined
if (len > MAX_SHARED_STRING_LENGTH_BYTES) {
_writeNonSharedString(text, len);
return;
}
// Then: is it something we can share?
if (_seenStringValueCount >= 0) {
int ix = _findSeenStringValue(text);
if (ix >= 0) {
_writeSharedStringValueReference(ix);
return;
}
}
// possibly short string (but not necessarily)
// first: ensure we have enough space
if ((_outputTail + MIN_BUFFER_FOR_POSSIBLE_SHORT_STRING) >= _outputEnd) {
_flushBuffer();
}
// then let's copy String chars to char buffer, faster than using getChar (measured, profiled)
text.getChars(0, len, _charBuffer, 0);
int origOffset = _outputTail;
++_outputTail; // to leave room for type token
int byteLen = _shortUTF8Encode(_charBuffer, 0, len);
if (byteLen <= MAX_SHORT_VALUE_STRING_BYTES) { // yes, is short indeed
// plus keep reference, if it could be shared:
if (_seenStringValueCount >= 0) {
_addSeenStringValue(text);
}
if (byteLen == len) { // and all ASCII
_outputBuffer[origOffset] = (byte) ((TOKEN_PREFIX_TINY_ASCII - 1) + byteLen);
} else { // not just ASCII
// note: since length 1 can not be used here, value range is offset by 2, not 1
_outputBuffer[origOffset] = (byte) ((TOKEN_PREFIX_TINY_UNICODE - 2) + byteLen);
}
} else { // nope, longer String
_outputBuffer[origOffset] = (byteLen == len) ? TOKEN_BYTE_LONG_STRING_ASCII
: SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE;
// and we will need String end marker byte
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
}
private final void _writeSharedStringValueReference(int ix)
throws IOException,JsonGenerationException
{
// 03-Mar-2011, tatu: Related to [JACKSON-525], let's add a sanity check here
if (ix >= _seenStringValueCount) {
throw new IllegalArgumentException("Internal error: trying to write shared String value with index "+ix
+"; but have only seen "+_seenStringValueCount+" so far!");
}
if (ix < 31) { // add 1, as byte 0 is omitted
_writeByte((byte) (TOKEN_PREFIX_SHARED_STRING_SHORT + 1 + ix));
} else {
_writeBytes(((byte) (TOKEN_PREFIX_SHARED_STRING_LONG + (ix >> 8))), (byte) ix);
}
}
/**
* Helper method called to handle cases where String value to write is known
* to be long enough not to be shareable.
*/
private final void _writeNonSharedString(final String text, final int len)
throws IOException,JsonGenerationException
{
// First: can we at least make a copy to char[]?
if (len > _charBufferLength) { // nope; need to skip copy step (alas; this is slower)
_writeByte(SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE);
_slowUTF8Encode(text);
_writeByte(BYTE_MARKER_END_OF_STRING);
return;
}
text.getChars(0, len, _charBuffer, 0);
// Expansion can be 3x for Unicode; and then there's type byte and end marker, so:
int maxLen = len + len + len + 2;
// Next: does it always fit within output buffer?
if (maxLen > _outputBuffer.length) { // nope
// can't rewrite type buffer, so can't speculate it might be all-ASCII
_writeByte(SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE);
_mediumUTF8Encode(_charBuffer, 0, len);
_writeByte(BYTE_MARKER_END_OF_STRING);
return;
}
if ((_outputTail + maxLen) >= _outputEnd) {
_flushBuffer();
}
int origOffset = _outputTail;
// can't say for sure if it's ASCII or Unicode, so:
_writeByte(TOKEN_BYTE_LONG_STRING_ASCII);
int byteLen = _shortUTF8Encode(_charBuffer, 0, len);
// If not ASCII, fix type:
if (byteLen > len) {
_outputBuffer[origOffset] = SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE;
}
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
@Override
public void writeString(char[] text, int offset, int len) throws IOException, JsonGenerationException
{
// Shared strings are tricky; easiest to just construct String, call the other method
if (len <= MAX_SHARED_STRING_LENGTH_BYTES && _seenStringValueCount >= 0 && len > 0) {
writeString(new String(text, offset, len));
return;
}
_verifyValueWrite("write String value");
if (len == 0) {
_writeByte(TOKEN_LITERAL_EMPTY_STRING);
return;
}
if (len <= MAX_SHORT_VALUE_STRING_BYTES) { // possibly short strings (not necessarily)
// first: ensure we have enough space
if ((_outputTail + MIN_BUFFER_FOR_POSSIBLE_SHORT_STRING) >= _outputEnd) {
_flushBuffer();
}
int origOffset = _outputTail;
++_outputTail; // to leave room for type token
int byteLen = _shortUTF8Encode(text, offset, offset+len);
byte typeToken;
if (byteLen <= MAX_SHORT_VALUE_STRING_BYTES) { // yes, is short indeed
if (byteLen == len) { // and all ASCII
typeToken = (byte) ((TOKEN_PREFIX_TINY_ASCII - 1) + byteLen);
} else { // not just ASCII
typeToken = (byte) ((TOKEN_PREFIX_TINY_UNICODE - 2) + byteLen);
}
} else { // nope, longer non-ASCII Strings
typeToken = SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE;
// and we will need String end marker byte
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
}
// and then sneak in type token now that know the details
_outputBuffer[origOffset] = typeToken;
} else { // "long" String, never shared
// but might still fit within buffer?
int maxLen = len + len + len + 2;
if (maxLen <= _outputBuffer.length) { // yes indeed
if ((_outputTail + maxLen) >= _outputEnd) {
_flushBuffer();
}
int origOffset = _outputTail;
_writeByte(SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE);
int byteLen = _shortUTF8Encode(text, offset, offset+len);
// if it's ASCII, let's revise our type determination (to help decoder optimize)
if (byteLen == len) {
_outputBuffer[origOffset] = TOKEN_BYTE_LONG_STRING_ASCII;
}
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
} else {
_writeByte(SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE);
_mediumUTF8Encode(text, offset, offset+len);
_writeByte(BYTE_MARKER_END_OF_STRING);
}
}
}
@Override
public final void writeString(SerializableString sstr)
throws IOException, JsonGenerationException
{
_verifyValueWrite("write String value");
// First: is it empty?
String str = sstr.getValue();
int len = str.length();
if (len == 0) {
_writeByte(TOKEN_LITERAL_EMPTY_STRING);
return;
}
// Second: something we can share?
if (len <= MAX_SHARED_STRING_LENGTH_BYTES && _seenStringValueCount >= 0) {
int ix = _findSeenStringValue(str);
if (ix >= 0) {
_writeSharedStringValueReference(ix);
return;
}
}
// If not, use pre-encoded version
byte[] raw = sstr.asUnquotedUTF8();
final int byteLen = raw.length;
if (byteLen <= MAX_SHORT_VALUE_STRING_BYTES) { // short string
// first: ensure we have enough space
if ((_outputTail + byteLen + 1) >= _outputEnd) {
_flushBuffer();
}
// ASCII or Unicode?
int typeToken = (byteLen == len)
? ((TOKEN_PREFIX_TINY_ASCII - 1) + byteLen)
: ((TOKEN_PREFIX_TINY_UNICODE - 2) + byteLen)
;
_outputBuffer[_outputTail++] = (byte) typeToken;
System.arraycopy(raw, 0, _outputBuffer, _outputTail, byteLen);
_outputTail += byteLen;
// plus keep reference, if it could be shared:
if (_seenStringValueCount >= 0) {
_addSeenStringValue(sstr.getValue());
}
} else { // "long" String, never shared
// but might still fit within buffer?
byte typeToken = (byteLen == len) ? TOKEN_BYTE_LONG_STRING_ASCII
: SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE;
_writeByte(typeToken);
_writeBytes(raw, 0, raw.length);
_writeByte(BYTE_MARKER_END_OF_STRING);
}
}
@Override
public void writeRawUTF8String(byte[] text, int offset, int len)
throws IOException, JsonGenerationException
{
_verifyValueWrite("write String value");
// first: is it empty String?
if (len == 0) {
_writeByte(TOKEN_LITERAL_EMPTY_STRING);
return;
}
// Sanity check: shared-strings incompatible with raw String writing
if (_seenStringValueCount >= 0) {
throw new UnsupportedOperationException("Can not use direct UTF-8 write methods when 'Feature.CHECK_SHARED_STRING_VALUES' enabled");
}
/* Other practical limitation is that we do not really know if it might be
* ASCII or not; and figuring it out is rather slow. So, best we can do is
* to declare we do not know it is ASCII (i.e. "is Unicode").
*/
if (len <= MAX_SHARED_STRING_LENGTH_BYTES) { // up to 65 Unicode bytes
// first: ensure we have enough space
if ((_outputTail + len) >= _outputEnd) { // bytes, plus one for type indicator
_flushBuffer();
}
/* 11-Feb-2011, tatu: As per [JACKSON-492], mininum length for "Unicode"
* String is 2; 1 byte length must be ASCII.
*/
if (len == 1) {
_outputBuffer[_outputTail++] = TOKEN_PREFIX_TINY_ASCII; // length of 1 cancels out (len-1)
_outputBuffer[_outputTail++] = text[offset];
} else {
_outputBuffer[_outputTail++] = (byte) ((TOKEN_PREFIX_TINY_UNICODE - 2) + len);
System.arraycopy(text, offset, _outputBuffer, _outputTail, len);
_outputTail += len;
}
} else { // "long" String
// but might still fit within buffer?
int maxLen = len + len + len + 2;
if (maxLen <= _outputBuffer.length) { // yes indeed
if ((_outputTail + maxLen) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE;
System.arraycopy(text, offset, _outputBuffer, _outputTail, len);
_outputTail += len;
_outputBuffer[_outputTail++] = BYTE_MARKER_END_OF_STRING;
} else {
_writeByte(SmileConstants.TOKEN_MISC_LONG_TEXT_UNICODE);
_writeBytes(text, offset, len);
_writeByte(BYTE_MARKER_END_OF_STRING);
}
}
}
@Override
public final void writeUTF8String(byte[] text, int offset, int len)
throws IOException, JsonGenerationException
{
// Since no escaping is needed, same as 'writeRawUTF8String'
writeRawUTF8String(text, offset, len);
}
/*
/**********************************************************
/* Output method implementations, unprocessed ("raw")
/**********************************************************
*/
@Override
public void writeRaw(String text) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRaw(String text, int offset, int len) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRaw(char[] text, int offset, int len) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRaw(char c) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRawValue(String text) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRawValue(String text, int offset, int len) throws IOException, JsonGenerationException {
throw _notSupported();
}
@Override
public void writeRawValue(char[] text, int offset, int len) throws IOException, JsonGenerationException {
throw _notSupported();
}
/*
/**********************************************************
/* Output method implementations, base64-encoded binary
/**********************************************************
*/
@Override
public void writeBinary(Base64Variant b64variant, byte[] data, int offset, int len) throws IOException, JsonGenerationException
{
if (data == null) {
writeNull();
return;
}
_verifyValueWrite("write Binary value");
if (isEnabled(Feature.ENCODE_BINARY_AS_7BIT)) {
_writeByte(TOKEN_MISC_BINARY_7BIT);
_write7BitBinaryWithLength(data, offset, len);
} else {
_writeByte(TOKEN_MISC_BINARY_RAW);
_writePositiveVInt(len);
// raw is dead simple of course:
_writeBytes(data, offset, len);
}
}
@Override
public int writeBinary(InputStream data, int dataLength)
throws IOException, JsonGenerationException
{
// Smile requires knowledge of length in advance, since binary is length-prefixed
if (dataLength < 0) {
throw new UnsupportedOperationException("Must pass actual length for Smile encoded data");
}
_verifyValueWrite("write Binary value");
int missing;
if (isEnabled(Feature.ENCODE_BINARY_AS_7BIT)) {
_writeByte(TOKEN_MISC_BINARY_7BIT);
byte[] encodingBuffer = _ioContext.allocBase64Buffer();
try {
missing = _write7BitBinaryWithLength(data, dataLength, encodingBuffer);
} finally {
_ioContext.releaseBase64Buffer(encodingBuffer);
}
} else {
_writeByte(TOKEN_MISC_BINARY_RAW );
_writePositiveVInt(dataLength);
// raw is dead simple of course:
missing = _writeBytes(data, dataLength);
}
if (missing > 0) {
_reportError("Too few bytes available: missing "+missing+" bytes (out of "+dataLength+")");
}
return dataLength;
}
@Override
public int writeBinary(Base64Variant b64variant, InputStream data, int dataLength)
throws IOException, JsonGenerationException
{
return writeBinary(data, dataLength);
}
/*
/**********************************************************
/* Output method implementations, primitive
/**********************************************************
*/
@Override
public void writeBoolean(boolean state) throws IOException, JsonGenerationException
{
_verifyValueWrite("write boolean value");
if (state) {
_writeByte(TOKEN_LITERAL_TRUE);
} else {
_writeByte(TOKEN_LITERAL_FALSE);
}
}
@Override
public void writeNull() throws IOException, JsonGenerationException
{
_verifyValueWrite("write null value");
_writeByte(TOKEN_LITERAL_NULL);
}
@Override
public void writeNumber(int i) throws IOException, JsonGenerationException
{
_verifyValueWrite("write number");
// First things first: let's zigzag encode number
i = SmileUtil.zigzagEncode(i);
// tiny (single byte) or small (type + 6-bit value) number?
if (i <= 0x3F && i >= 0) {
if (i <= 0x1F) { // tiny
_writeByte((byte) (TOKEN_PREFIX_SMALL_INT + i));
return;
}
// nope, just small, 2 bytes (type, 1-byte zigzag value) for 6 bit value
_writeBytes(TOKEN_BYTE_INT_32, (byte) (0x80 + i));
return;
}
// Ok: let's find minimal representation then
byte b0 = (byte) (0x80 + (i & 0x3F));
i >>>= 6;
if (i <= 0x7F) { // 13 bits is enough (== 3 byte total encoding)
_writeBytes(TOKEN_BYTE_INT_32, (byte) i, b0);
return;
}
byte b1 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_32, (byte) i, b1, b0);
return;
}
byte b2 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_32, (byte) i, b2, b1, b0);
return;
}
// no, need all 5 bytes
byte b3 = (byte) (i & 0x7F);
_writeBytes(TOKEN_BYTE_INT_32, (byte) (i >> 7), b3, b2, b1, b0);
}
@Override
public void writeNumber(long l) throws IOException, JsonGenerationException
{
// First: maybe 32 bits is enough?
if (l <= MAX_INT_AS_LONG && l >= MIN_INT_AS_LONG) {
writeNumber((int) l);
return;
}
_verifyValueWrite("write number");
// Then let's zigzag encode it
l = SmileUtil.zigzagEncode(l);
// Ok, well, we do know that 5 lowest-significant bytes are needed
int i = (int) l;
// 4 can be extracted from lower int
byte b0 = (byte) (0x80 + (i & 0x3F)); // sign bit set in the last byte
byte b1 = (byte) ((i >> 6) & 0x7F);
byte b2 = (byte) ((i >> 13) & 0x7F);
byte b3 = (byte) ((i >> 20) & 0x7F);
// fifth one is split between ints:
l >>>= 27;
byte b4 = (byte) (((int) l) & 0x7F);
// which may be enough?
i = (int) (l >> 7);
if (i == 0) {
_writeBytes(TOKEN_BYTE_INT_64, b4, b3, b2, b1, b0);
return;
}
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_64, (byte) i);
_writeBytes(b4, b3, b2, b1, b0);
return;
}
byte b5 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_64, (byte) i);
_writeBytes(b5, b4, b3, b2, b1, b0);
return;
}
byte b6 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_64, (byte) i, b6);
_writeBytes(b5, b4, b3, b2, b1, b0);
return;
}
byte b7 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_writeBytes(TOKEN_BYTE_INT_64, (byte) i, b7, b6);
_writeBytes(b5, b4, b3, b2, b1, b0);
return;
}
byte b8 = (byte) (i & 0x7F);
i >>= 7;
// must be done, with 10 bytes! (9 * 7 + 6 == 69 bits; only need 63)
_writeBytes(TOKEN_BYTE_INT_64, (byte) i, b8, b7, b6);
_writeBytes(b5, b4, b3, b2, b1, b0);
}
@Override
public void writeNumber(BigInteger v) throws IOException, JsonGenerationException
{
if (v == null) {
writeNull();
return;
}
_verifyValueWrite("write number");
// quite simple: type, and then VInt-len prefixed 7-bit encoded binary data:
_writeByte(TOKEN_BYTE_BIG_INTEGER);
byte[] data = v.toByteArray();
_write7BitBinaryWithLength(data, 0, data.length);
}
@Override
public void writeNumber(double d) throws IOException, JsonGenerationException
{
// Ok, now, we needed token type byte plus 10 data bytes (7 bits each)
_ensureRoomForOutput(11);
_verifyValueWrite("write number");
/* 17-Apr-2010, tatu: could also use 'doubleToIntBits', but it seems more accurate to use
* exact representation; and possibly faster. However, if there are cases
* where collapsing of NaN was needed (for non-Java clients), this can
* be changed
*/
long l = Double.doubleToRawLongBits(d);
_outputBuffer[_outputTail++] = TOKEN_BYTE_FLOAT_64;
// Handle first 29 bits (single bit first, then 4 x 7 bits)
int hi5 = (int) (l >>> 35);
_outputBuffer[_outputTail+4] = (byte) (hi5 & 0x7F);
hi5 >>= 7;
_outputBuffer[_outputTail+3] = (byte) (hi5 & 0x7F);
hi5 >>= 7;
_outputBuffer[_outputTail+2] = (byte) (hi5 & 0x7F);
hi5 >>= 7;
_outputBuffer[_outputTail+1] = (byte) (hi5 & 0x7F);
hi5 >>= 7;
_outputBuffer[_outputTail] = (byte) hi5;
_outputTail += 5;
// Then split byte (one that crosses lo/hi int boundary), 7 bits
{
int mid = (int) (l >> 28);
_outputBuffer[_outputTail++] = (byte) (mid & 0x7F);
}
// and then last 4 bytes (28 bits)
int lo4 = (int) l;
_outputBuffer[_outputTail+3] = (byte) (lo4 & 0x7F);
lo4 >>= 7;
_outputBuffer[_outputTail+2] = (byte) (lo4 & 0x7F);
lo4 >>= 7;
_outputBuffer[_outputTail+1] = (byte) (lo4 & 0x7F);
lo4 >>= 7;
_outputBuffer[_outputTail] = (byte) (lo4 & 0x7F);
_outputTail += 4;
}
@Override
public void writeNumber(float f) throws IOException, JsonGenerationException
{
// Ok, now, we needed token type byte plus 5 data bytes (7 bits each)
_ensureRoomForOutput(6);
_verifyValueWrite("write number");
/* 17-Apr-2010, tatu: could also use 'floatToIntBits', but it seems more accurate to use
* exact representation; and possibly faster. However, if there are cases
* where collapsing of NaN was needed (for non-Java clients), this can
* be changed
*/
int i = Float.floatToRawIntBits(f);
_outputBuffer[_outputTail++] = TOKEN_BYTE_FLOAT_32;
_outputBuffer[_outputTail+4] = (byte) (i & 0x7F);
i >>= 7;
_outputBuffer[_outputTail+3] = (byte) (i & 0x7F);
i >>= 7;
_outputBuffer[_outputTail+2] = (byte) (i & 0x7F);
i >>= 7;
_outputBuffer[_outputTail+1] = (byte) (i & 0x7F);
i >>= 7;
_outputBuffer[_outputTail] = (byte) (i & 0x7F);
_outputTail += 5;
}
@Override
public void writeNumber(BigDecimal dec) throws IOException, JsonGenerationException
{
if (dec == null) {
writeNull();
return;
}
_verifyValueWrite("write number");
_writeByte(TOKEN_BYTE_BIG_DECIMAL);
int scale = dec.scale();
// Ok, first output scale as VInt
_writeSignedVInt(scale);
BigInteger unscaled = dec.unscaledValue();
byte[] data = unscaled.toByteArray();
// And then binary data in "safe" mode (7-bit values)
_write7BitBinaryWithLength(data, 0, data.length);
}
@Override
public void writeNumber(String encodedValue) throws IOException,JsonGenerationException, UnsupportedOperationException
{
/* 17-Apr-2010, tatu: Could try parsing etc; but for now let's not bother, it could
* just be some non-standard representation that caller wants to pass
*/
throw _notSupported();
}
/*
/**********************************************************
/* Implementations for other methods
/**********************************************************
*/
@Override
protected final void _verifyValueWrite(String typeMsg)
throws IOException, JsonGenerationException
{
int status = _writeContext.writeValue();
if (status == JsonWriteContext.STATUS_EXPECT_NAME) {
_reportError("Can not "+typeMsg+", expecting field name");
}
}
/*
/**********************************************************
/* Low-level output handling
/**********************************************************
*/
@Override
public final void flush() throws IOException
{
_flushBuffer();
if (isEnabled(JsonGenerator.Feature.FLUSH_PASSED_TO_STREAM)) {
_out.flush();
}
}
@Override
public void close() throws IOException
{
/* 05-Dec-2008, tatu: To add [JACKSON-27], need to close open
* scopes.
*/
// First: let's see that we still have buffers...
if (_outputBuffer != null
&& isEnabled(JsonGenerator.Feature.AUTO_CLOSE_JSON_CONTENT)) {
while (true) {
JsonStreamContext ctxt = getOutputContext();
if (ctxt.inArray()) {
writeEndArray();
} else if (ctxt.inObject()) {
writeEndObject();
} else {
break;
}
}
}
boolean wasClosed = _closed;
super.close();
if (!wasClosed && isEnabled(Feature.WRITE_END_MARKER)) {
_writeByte(BYTE_MARKER_END_OF_CONTENT);
}
_flushBuffer();
if (_ioContext.isResourceManaged() || isEnabled(JsonGenerator.Feature.AUTO_CLOSE_TARGET)) {
_out.close();
} else {
// If we can't close it, we should at least flush
_out.flush();
}
// Internal buffer(s) generator has can now be released as well
_releaseBuffers();
}
/*
/**********************************************************
/* Internal methods, UTF-8 encoding
/**********************************************************
*/
/**
* Helper method called when the whole character sequence is known to
* fit in the output buffer regardless of UTF-8 expansion.
*/
private final int _shortUTF8Encode(char[] str, int i, int end)
{
// First: let's see if it's all ASCII: that's rather fast
int ptr = _outputTail;
final byte[] outBuf = _outputBuffer;
do {
int c = str[i];
if (c > 0x7F) {
return _shortUTF8Encode2(str, i, end, ptr);
}
outBuf[ptr++] = (byte) c;
} while (++i < end);
int codedLen = ptr - _outputTail;
_outputTail = ptr;
return codedLen;
}
/**
* Helper method called when the whole character sequence is known to
* fit in the output buffer, but not all characters are single-byte (ASCII)
* characters.
*/
private final int _shortUTF8Encode2(char[] str, int i, int end, int outputPtr)
{
final byte[] outBuf = _outputBuffer;
while (i < end) {
int c = str[i++];
if (c <= 0x7F) {
outBuf[outputPtr++] = (byte) c;
continue;
}
// Nope, multi-byte:
if (c < 0x800) { // 2-byte
outBuf[outputPtr++] = (byte) (0xc0 | (c >> 6));
outBuf[outputPtr++] = (byte) (0x80 | (c & 0x3f));
continue;
}
// 3 or 4 bytes (surrogate)
// Surrogates?
if (c < SURR1_FIRST || c > SURR2_LAST) { // nope, regular 3-byte character
outBuf[outputPtr++] = (byte) (0xe0 | (c >> 12));
outBuf[outputPtr++] = (byte) (0x80 | ((c >> 6) & 0x3f));
outBuf[outputPtr++] = (byte) (0x80 | (c & 0x3f));
continue;
}
// Yup, a surrogate pair
if (c > SURR1_LAST) { // must be from first range; second won't do
_throwIllegalSurrogate(c);
}
// ... meaning it must have a pair
if (i >= end) {
_throwIllegalSurrogate(c);
}
c = _convertSurrogate(c, str[i++]);
if (c > 0x10FFFF) { // illegal in JSON as well as in XML
_throwIllegalSurrogate(c);
}
outBuf[outputPtr++] = (byte) (0xf0 | (c >> 18));
outBuf[outputPtr++] = (byte) (0x80 | ((c >> 12) & 0x3f));
outBuf[outputPtr++] = (byte) (0x80 | ((c >> 6) & 0x3f));
outBuf[outputPtr++] = (byte) (0x80 | (c & 0x3f));
}
int codedLen = outputPtr - _outputTail;
_outputTail = outputPtr;
return codedLen;
}
private void _slowUTF8Encode(String str) throws IOException
{
final int len = str.length();
int inputPtr = 0;
final int bufferEnd = _outputEnd - 4;
output_loop:
for (; inputPtr < len; ) {
/* First, let's ensure we can output at least 4 bytes
* (longest UTF-8 encoded codepoint):
*/
if (_outputTail >= bufferEnd) {
_flushBuffer();
}
int c = str.charAt(inputPtr++);
// And then see if we have an ASCII char:
if (c <= 0x7F) { // If so, can do a tight inner loop:
_outputBuffer[_outputTail++] = (byte)c;
// Let's calc how many ASCII chars we can copy at most:
int maxInCount = (len - inputPtr);
int maxOutCount = (bufferEnd - _outputTail);
if (maxInCount > maxOutCount) {
maxInCount = maxOutCount;
}
maxInCount += inputPtr;
ascii_loop:
while (true) {
if (inputPtr >= maxInCount) { // done with max. ascii seq
continue output_loop;
}
c = str.charAt(inputPtr++);
if (c > 0x7F) {
break ascii_loop;
}
_outputBuffer[_outputTail++] = (byte) c;
}
}
// Nope, multi-byte:
if (c < 0x800) { // 2-byte
_outputBuffer[_outputTail++] = (byte) (0xc0 | (c >> 6));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
} else { // 3 or 4 bytes
// Surrogates?
if (c < SURR1_FIRST || c > SURR2_LAST) {
_outputBuffer[_outputTail++] = (byte) (0xe0 | (c >> 12));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 6) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
continue;
}
// Yup, a surrogate:
if (c > SURR1_LAST) { // must be from first range
_throwIllegalSurrogate(c);
}
// and if so, followed by another from next range
if (inputPtr >= len) {
_throwIllegalSurrogate(c);
}
c = _convertSurrogate(c, str.charAt(inputPtr++));
if (c > 0x10FFFF) { // illegal, as per RFC 4627
_throwIllegalSurrogate(c);
}
_outputBuffer[_outputTail++] = (byte) (0xf0 | (c >> 18));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 12) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 6) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
}
}
}
private void _mediumUTF8Encode(char[] str, int inputPtr, int inputEnd) throws IOException
{
final int bufferEnd = _outputEnd - 4;
output_loop:
while (inputPtr < inputEnd) {
/* First, let's ensure we can output at least 4 bytes
* (longest UTF-8 encoded codepoint):
*/
if (_outputTail >= bufferEnd) {
_flushBuffer();
}
int c = str[inputPtr++];
// And then see if we have an ASCII char:
if (c <= 0x7F) { // If so, can do a tight inner loop:
_outputBuffer[_outputTail++] = (byte)c;
// Let's calc how many ASCII chars we can copy at most:
int maxInCount = (inputEnd - inputPtr);
int maxOutCount = (bufferEnd - _outputTail);
if (maxInCount > maxOutCount) {
maxInCount = maxOutCount;
}
maxInCount += inputPtr;
ascii_loop:
while (true) {
if (inputPtr >= maxInCount) { // done with max. ascii seq
continue output_loop;
}
c = str[inputPtr++];
if (c > 0x7F) {
break ascii_loop;
}
_outputBuffer[_outputTail++] = (byte) c;
}
}
// Nope, multi-byte:
if (c < 0x800) { // 2-byte
_outputBuffer[_outputTail++] = (byte) (0xc0 | (c >> 6));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
} else { // 3 or 4 bytes
// Surrogates?
if (c < SURR1_FIRST || c > SURR2_LAST) {
_outputBuffer[_outputTail++] = (byte) (0xe0 | (c >> 12));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 6) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
continue;
}
// Yup, a surrogate:
if (c > SURR1_LAST) { // must be from first range
_throwIllegalSurrogate(c);
}
// and if so, followed by another from next range
if (inputPtr >= inputEnd) {
_throwIllegalSurrogate(c);
}
c = _convertSurrogate(c, str[inputPtr++]);
if (c > 0x10FFFF) { // illegal, as per RFC 4627
_throwIllegalSurrogate(c);
}
_outputBuffer[_outputTail++] = (byte) (0xf0 | (c >> 18));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 12) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | ((c >> 6) & 0x3f));
_outputBuffer[_outputTail++] = (byte) (0x80 | (c & 0x3f));
}
}
}
/**
* Method called to calculate UTF codepoint, from a surrogate pair.
*/
private int _convertSurrogate(int firstPart, int secondPart)
{
// Ok, then, is the second part valid?
if (secondPart < SURR2_FIRST || secondPart > SURR2_LAST) {
throw new IllegalArgumentException("Broken surrogate pair: first char 0x"+Integer.toHexString(firstPart)+", second 0x"+Integer.toHexString(secondPart)+"; illegal combination");
}
return 0x10000 + ((firstPart - SURR1_FIRST) << 10) + (secondPart - SURR2_FIRST);
}
private void _throwIllegalSurrogate(int code)
{
if (code > 0x10FFFF) { // over max?
throw new IllegalArgumentException("Illegal character point (0x"+Integer.toHexString(code)+") to output; max is 0x10FFFF as per RFC 4627");
}
if (code >= SURR1_FIRST) {
if (code <= SURR1_LAST) { // Unmatched first part (closing without second part?)
throw new IllegalArgumentException("Unmatched first part of surrogate pair (0x"+Integer.toHexString(code)+")");
}
throw new IllegalArgumentException("Unmatched second part of surrogate pair (0x"+Integer.toHexString(code)+")");
}
// should we ever get this?
throw new IllegalArgumentException("Illegal character point (0x"+Integer.toHexString(code)+") to output");
}
/*
/**********************************************************
/* Internal methods, writing bytes
/**********************************************************
*/
private final void _ensureRoomForOutput(int needed) throws IOException
{
if ((_outputTail + needed) >= _outputEnd) {
_flushBuffer();
}
}
private final void _writeByte(byte b) throws IOException
{
if (_outputTail >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b;
}
private final void _writeBytes(byte b1, byte b2) throws IOException
{
if ((_outputTail + 1) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b2;
}
private final void _writeBytes(byte b1, byte b2, byte b3) throws IOException
{
if ((_outputTail + 2) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b3;
}
private final void _writeBytes(byte b1, byte b2, byte b3, byte b4) throws IOException
{
if ((_outputTail + 3) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b3;
_outputBuffer[_outputTail++] = b4;
}
private final void _writeBytes(byte b1, byte b2, byte b3, byte b4, byte b5) throws IOException
{
if ((_outputTail + 4) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b3;
_outputBuffer[_outputTail++] = b4;
_outputBuffer[_outputTail++] = b5;
}
private final void _writeBytes(byte b1, byte b2, byte b3, byte b4, byte b5, byte b6) throws IOException
{
if ((_outputTail + 5) >= _outputEnd) {
_flushBuffer();
}
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b3;
_outputBuffer[_outputTail++] = b4;
_outputBuffer[_outputTail++] = b5;
_outputBuffer[_outputTail++] = b6;
}
private final void _writeBytes(byte[] data, int offset, int len) throws IOException
{
if (len == 0) {
return;
}
if ((_outputTail + len) >= _outputEnd) {
_writeBytesLong(data, offset, len);
return;
}
// common case, non-empty, fits in just fine:
System.arraycopy(data, offset, _outputBuffer, _outputTail, len);
_outputTail += len;
}
private final int _writeBytes(InputStream in, int bytesLeft) throws IOException
{
while (bytesLeft > 0) {
int room = _outputEnd - _outputTail;
if (room < 0) {
_flushBuffer();
room = _outputEnd - _outputTail;
}
int count = in.read(_outputBuffer, _outputTail, room);
if (count < 0) {
break;
}
_outputTail += count;
bytesLeft -= count;
}
return bytesLeft;
}
private final void _writeBytesLong(byte[] data, int offset, int len) throws IOException
{
if (_outputTail >= _outputEnd) {
_flushBuffer();
}
while (true) {
int currLen = Math.min(len, (_outputEnd - _outputTail));
System.arraycopy(data, offset, _outputBuffer, _outputTail, currLen);
_outputTail += currLen;
if ((len -= currLen) == 0) {
break;
}
offset += currLen;
_flushBuffer();
}
}
/**
* Helper method for writing a 32-bit positive (really 31-bit then) value.
* Value is NOT zigzag encoded (since there is no sign bit to worry about)
*/
private void _writePositiveVInt(int i) throws IOException
{
// At most 5 bytes (4 * 7 + 6 bits == 34 bits)
_ensureRoomForOutput(5);
byte b0 = (byte) (0x80 + (i & 0x3F));
i >>= 6;
if (i <= 0x7F) { // 6 or 13 bits is enough (== 2 or 3 byte total encoding)
if (i > 0) {
_outputBuffer[_outputTail++] = (byte) i;
}
_outputBuffer[_outputTail++] = b0;
return;
}
byte b1 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_outputBuffer[_outputTail++] = (byte) i;
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b0;
} else {
byte b2 = (byte) (i & 0x7F);
i >>= 7;
if (i <= 0x7F) {
_outputBuffer[_outputTail++] = (byte) i;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b0;
} else {
byte b3 = (byte) (i & 0x7F);
_outputBuffer[_outputTail++] = (byte) (i >> 7);
_outputBuffer[_outputTail++] = b3;
_outputBuffer[_outputTail++] = b2;
_outputBuffer[_outputTail++] = b1;
_outputBuffer[_outputTail++] = b0;
}
}
}
/**
* Helper method for writing 32-bit signed value, using
* "zig zag encoding" (see protocol buffers for explanation -- basically,
* sign bit is moved as LSB, rest of value shifted left by one)
* coupled with basic variable length encoding
*/
private void _writeSignedVInt(int input) throws IOException
{
_writePositiveVInt(SmileUtil.zigzagEncode(input));
}
protected void _write7BitBinaryWithLength(byte[] data, int offset, int len) throws IOException
{
_writePositiveVInt(len);
// first, let's handle full 7-byte chunks
while (len >= 7) {
if ((_outputTail + 8) >= _outputEnd) {
_flushBuffer();
}
int i = data[offset++]; // 1st byte
_outputBuffer[_outputTail++] = (byte) ((i >> 1) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 2nd
_outputBuffer[_outputTail++] = (byte) ((i >> 2) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 3rd
_outputBuffer[_outputTail++] = (byte) ((i >> 3) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 4th
_outputBuffer[_outputTail++] = (byte) ((i >> 4) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 5th
_outputBuffer[_outputTail++] = (byte) ((i >> 5) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 6th
_outputBuffer[_outputTail++] = (byte) ((i >> 6) & 0x7F);
i = (i << 8) | (data[offset++] & 0xFF); // 7th
_outputBuffer[_outputTail++] = (byte) ((i >> 7) & 0x7F);
_outputBuffer[_outputTail++] = (byte) (i & 0x7F);
len -= 7;
}
// and then partial piece, if any
if (len > 0) {
// up to 6 bytes to output, resulting in at most 7 bytes (which can encode 49 bits)
if ((_outputTail + 7) >= _outputEnd) {
_flushBuffer();
}
int i = data[offset++];
_outputBuffer[_outputTail++] = (byte) ((i >> 1) & 0x7F);
if (len > 1) {
i = ((i & 0x01) << 8) | (data[offset++] & 0xFF); // 2nd
_outputBuffer[_outputTail++] = (byte) ((i >> 2) & 0x7F);
if (len > 2) {
i = ((i & 0x03) << 8) | (data[offset++] & 0xFF); // 3rd
_outputBuffer[_outputTail++] = (byte) ((i >> 3) & 0x7F);
if (len > 3) {
i = ((i & 0x07) << 8) | (data[offset++] & 0xFF); // 4th
_outputBuffer[_outputTail++] = (byte) ((i >> 4) & 0x7F);
if (len > 4) {
i = ((i & 0x0F) << 8) | (data[offset++] & 0xFF); // 5th
_outputBuffer[_outputTail++] = (byte) ((i >> 5) & 0x7F);
if (len > 5) {
i = ((i & 0x1F) << 8) | (data[offset++] & 0xFF); // 6th
_outputBuffer[_outputTail++] = (byte) ((i >> 6) & 0x7F);
_outputBuffer[_outputTail++] = (byte) (i & 0x3F); // last 6 bits
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x1F); // last 5 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x0F); // last 4 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x07); // last 3 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x03); // last 2 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x01); // last bit
}
}
}
protected int _write7BitBinaryWithLength(InputStream in, int bytesLeft, byte[] buffer)
throws IOException
{
_writePositiveVInt(bytesLeft);
int inputPtr = 0;
int inputEnd = 0;
int lastFullOffset = -7;
// first, let's handle full 7-byte chunks
while (bytesLeft >= 7) {
if (inputPtr > lastFullOffset) {
inputEnd = _readMore(in, buffer, inputPtr, inputEnd, bytesLeft);
inputPtr = 0;
if (inputEnd < 7) { // required to try to read to have at least 7 bytes
bytesLeft -= inputEnd; // just to give accurate error messages wrt how much was gotten
break;
}
lastFullOffset = inputEnd-7;
}
if ((_outputTail + 8) >= _outputEnd) {
_flushBuffer();
}
int i = buffer[inputPtr++]; // 1st byte
_outputBuffer[_outputTail++] = (byte) ((i >> 1) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 2nd
_outputBuffer[_outputTail++] = (byte) ((i >> 2) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 3rd
_outputBuffer[_outputTail++] = (byte) ((i >> 3) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 4th
_outputBuffer[_outputTail++] = (byte) ((i >> 4) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 5th
_outputBuffer[_outputTail++] = (byte) ((i >> 5) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 6th
_outputBuffer[_outputTail++] = (byte) ((i >> 6) & 0x7F);
i = (i << 8) | (buffer[inputPtr++] & 0xFF); // 7th
_outputBuffer[_outputTail++] = (byte) ((i >> 7) & 0x7F);
_outputBuffer[_outputTail++] = (byte) (i & 0x7F);
bytesLeft -= 7;
}
// and then partial piece, if any
if (bytesLeft > 0) {
// up to 6 bytes to output, resulting in at most 7 bytes (which can encode 49 bits)
if ((_outputTail + 7) >= _outputEnd) {
_flushBuffer();
}
inputEnd = _readMore(in, buffer, inputPtr, inputEnd, bytesLeft);
inputPtr = 0;
if (inputEnd > 0) { // yes, but do we have room for output?
bytesLeft -= inputEnd;
int i = buffer[inputPtr++];
_outputBuffer[_outputTail++] = (byte) ((i >> 1) & 0x7F);
if (inputEnd > 1) {
i = ((i & 0x01) << 8) | (buffer[inputPtr++] & 0xFF); // 2nd
_outputBuffer[_outputTail++] = (byte) ((i >> 2) & 0x7F);
if (inputEnd > 2) {
i = ((i & 0x03) << 8) | (buffer[inputPtr++] & 0xFF); // 3rd
_outputBuffer[_outputTail++] = (byte) ((i >> 3) & 0x7F);
if (inputEnd > 3) {
i = ((i & 0x07) << 8) | (buffer[inputPtr++] & 0xFF); // 4th
_outputBuffer[_outputTail++] = (byte) ((i >> 4) & 0x7F);
if (inputEnd > 4) {
i = ((i & 0x0F) << 8) | (buffer[inputPtr++] & 0xFF); // 5th
_outputBuffer[_outputTail++] = (byte) ((i >> 5) & 0x7F);
if (inputEnd > 5) {
i = ((i & 0x1F) << 8) | (buffer[inputPtr++] & 0xFF); // 6th
_outputBuffer[_outputTail++] = (byte) ((i >> 6) & 0x7F);
_outputBuffer[_outputTail++] = (byte) (i & 0x3F); // last 6 bits
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x1F); // last 5 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x0F); // last 4 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x07); // last 3 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x03); // last 2 bits
}
} else {
_outputBuffer[_outputTail++] = (byte) (i & 0x01); // last bit
}
}
}
return bytesLeft;
}
private int _readMore(InputStream in,
byte[] readBuffer, int inputPtr, int inputEnd,
int maxRead) throws IOException
{
// anything to shift to front?
int i = 0;
while (inputPtr < inputEnd) {
readBuffer[i++] = readBuffer[inputPtr++];
}
inputPtr = 0;
inputEnd = i;
maxRead = Math.min(maxRead, readBuffer.length);
do {
/* 26-Feb-2013, tatu: Similar to jackson-core issue #55, need to ensure
* we have something to read.
*/
int length = maxRead - inputEnd;
if (length == 0) {
break;
}
int count = in.read(readBuffer, inputEnd, length);
if (count < 0) {
return inputEnd;
}
inputEnd += count;
} while (inputEnd < 7);
return inputEnd;
}
/*
/**********************************************************
/* Internal methods, buffer handling
/**********************************************************
*/
@Override
protected void _releaseBuffers()
{
byte[] buf = _outputBuffer;
if (buf != null && _bufferRecyclable) {
_outputBuffer = null;
_ioContext.releaseWriteEncodingBuffer(buf);
}
char[] cbuf = _charBuffer;
if (cbuf != null) {
_charBuffer = null;
_ioContext.releaseConcatBuffer(cbuf);
}
/* Ok: since clearing up of larger arrays is much slower,
* let's only recycle default-sized buffers...
*/
{
SharedStringNode[] nameBuf = _seenNames;
if (nameBuf != null && nameBuf.length == SmileBufferRecycler.DEFAULT_NAME_BUFFER_LENGTH) {
_seenNames = null;
/* 28-Jun-2011, tatu: With 1.9, caller needs to clear the buffer; and note
* that since it's a hash area, must clear all
*/
if (_seenNameCount > 0) {
Arrays.fill(nameBuf, null);
}
_smileBufferRecycler.releaseSeenNamesBuffer(nameBuf);
}
}
{
SharedStringNode[] valueBuf = _seenStringValues;
if (valueBuf != null && valueBuf.length == SmileBufferRecycler.DEFAULT_STRING_VALUE_BUFFER_LENGTH) {
_seenStringValues = null;
/* 28-Jun-2011, tatu: With 1.9, caller needs to clear the buffer; and note
* that since it's a hash area, must clear all
*/
if (_seenStringValueCount > 0) {
Arrays.fill(valueBuf, null);
}
_smileBufferRecycler.releaseSeenStringValuesBuffer(valueBuf);
}
}
}
protected final void _flushBuffer() throws IOException
{
if (_outputTail > 0) {
_bytesWritten += _outputTail;
_out.write(_outputBuffer, 0, _outputTail);
_outputTail = 0;
}
}
/*
/**********************************************************
/* Internal methods, handling shared string "maps"
/**********************************************************
*/
private final int _findSeenName(String name)
{
int hash = name.hashCode();
SharedStringNode head = _seenNames[hash & (_seenNames.length-1)];
if (head == null) {
return -1;
}
SharedStringNode node = head;
// first, identity match; assuming most of the time we get intern()ed String
// And do unrolled initial check; 90+% likelihood head node has all info we need:
if (node.value == name) {
return node.index;
}
while ((node = node.next) != null) {
if (node.value == name) {
return node.index;
}
}
// If not, equality check; we already know head is not null
node = head;
do {
String value = node.value;
if (value.hashCode() == hash && value.equals(name)) {
return node.index;
}
node = node.next;
} while (node != null);
return -1;
}
private final void _addSeenName(String name)
{
// first: do we need to expand?
if (_seenNameCount == _seenNames.length) {
if (_seenNameCount == MAX_SHARED_NAMES) { // we are too full, restart from empty
Arrays.fill(_seenNames, null);
_seenNameCount = 0;
} else { // we always start with modest default size (like 64), so expand to full
SharedStringNode[] old = _seenNames;
_seenNames = new SharedStringNode[MAX_SHARED_NAMES];
final int mask = MAX_SHARED_NAMES-1;
for (SharedStringNode node : old) {
while (node != null) {
int ix = node.value.hashCode() & mask;
SharedStringNode next = node.next;
node.next = _seenNames[ix];
_seenNames[ix] = node;
node = next;
}
}
}
}
// other than that, just slap it there
int ix = name.hashCode() & (_seenNames.length-1);
_seenNames[ix] = new SharedStringNode(name, _seenNameCount, _seenNames[ix]);
++_seenNameCount;
}
private final int _findSeenStringValue(String text)
{
int hash = text.hashCode();
SharedStringNode head = _seenStringValues[hash & (_seenStringValues.length-1)];
if (head != null) {
SharedStringNode node = head;
// first, identity match; assuming most of the time we get intern()ed String
do {
if (node.value == text) {
return node.index;
}
node = node.next;
} while (node != null);
// and then comparison, if no match yet
node = head;
do {
String value = node.value;
if (value.hashCode() == hash && value.equals(text)) {
return node.index;
}
node = node.next;
} while (node != null);
}
return -1;
}
private final void _addSeenStringValue(String text)
{
// first: do we need to expand?
if (_seenStringValueCount == _seenStringValues.length) {
if (_seenStringValueCount == MAX_SHARED_STRING_VALUES) { // we are too full, restart from empty
Arrays.fill(_seenStringValues, null);
_seenStringValueCount = 0;
} else { // we always start with modest default size (like 64), so expand to full
SharedStringNode[] old = _seenStringValues;
_seenStringValues = new SharedStringNode[MAX_SHARED_STRING_VALUES];
final int mask = MAX_SHARED_STRING_VALUES-1;
for (SharedStringNode node : old) {
while (node != null) {
int ix = node.value.hashCode() & mask;
SharedStringNode next = node.next;
node.next = _seenStringValues[ix];
_seenStringValues[ix] = node;
node = next;
}
}
}
}
// other than that, just slap it there
int ix = text.hashCode() & (_seenStringValues.length-1);
_seenStringValues[ix] = new SharedStringNode(text, _seenStringValueCount, _seenStringValues[ix]);
++_seenStringValueCount;
}
/*
/**********************************************************
/* Internal methods, error reporting
/**********************************************************
*/
/**
* Method for accessing offset of the next byte within the whole output
* stream that this generator has produced.
*/
protected long outputOffset() {
return _bytesWritten + _outputTail;
}
protected UnsupportedOperationException _notSupported() {
return new UnsupportedOperationException();
}
}
SmileParser.java 0000664 0000000 0000000 00000273213 12150774126 0040402 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile package com.fasterxml.jackson.dataformat.smile;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.ref.SoftReference;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Arrays;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.base.ParserBase;
import com.fasterxml.jackson.core.io.IOContext;
import com.fasterxml.jackson.core.sym.BytesToNameCanonicalizer;
import com.fasterxml.jackson.core.sym.Name;
import static com.fasterxml.jackson.dataformat.smile.SmileConstants.BYTE_MARKER_END_OF_STRING;
public class SmileParser
extends ParserBase
{
/**
* Enumeration that defines all togglable features for Smile generators.
*/
public enum Feature {
/**
* Feature that determines whether 4-byte Smile header is mandatory in input,
* or optional. If enabled, it means that only input that starts with the header
* is accepted as valid; if disabled, header is optional. In latter case,r
* settings for content are assumed to be defaults.
*/
REQUIRE_HEADER(true)
;
final boolean _defaultState;
final int _mask;
/**
* Method that calculates bit set (flags) of all features that
* are enabled by default.
*/
public static int collectDefaults()
{
int flags = 0;
for (Feature f : values()) {
if (f.enabledByDefault()) {
flags |= f.getMask();
}
}
return flags;
}
private Feature(boolean defaultState) {
_defaultState = defaultState;
_mask = (1 << ordinal());
}
public boolean enabledByDefault() { return _defaultState; }
public int getMask() { return _mask; }
}
private final static int[] NO_INTS = new int[0];
private final static String[] NO_STRINGS = new String[0];
/*
/**********************************************************
/* Configuration
/**********************************************************
*/
/**
* Codec used for data binding when (if) requested.
*/
protected ObjectCodec _objectCodec;
/**
* Flag that indicates whether content can legally have raw (unquoted)
* binary data. Since this information is included both in header and
* in actual binary data blocks there is redundancy, and we want to
* ensure settings are compliant. Using application may also want to
* know this setting in case it does some direct (random) access.
*/
protected boolean _mayContainRawBinary;
/**
* Helper object used for low-level recycling of Smile-generator
* specific buffers.
*/
final protected SmileBufferRecycler
* If it is not, it also means that parser can NOT modify underlying
* buffer.
*/
protected boolean _bufferRecyclable;
/*
/**********************************************************
/* Additional parsing state
/**********************************************************
*/
/**
* Flag that indicates that the current token has not yet
* been fully processed, and needs to be finished for
* some access (or skipped to obtain the next token)
*/
protected boolean _tokenIncomplete = false;
/**
* Type byte of the current token
*/
protected int _typeByte;
/**
* Specific flag that is set when we encountered a 32-bit
* floating point value; needed since numeric super classes do
* not track distinction between float and double, but Smile
* format does, and we want to retain that separation.
*/
protected boolean _got32BitFloat;
/*
/**********************************************************
/* Symbol handling, decoding
/**********************************************************
*/
/**
* Symbol table that contains field names encountered so far
*/
final protected BytesToNameCanonicalizer _symbols;
/**
* Temporary buffer used for name parsing.
*/
protected int[] _quadBuffer = NO_INTS;
/**
* Quads used for hash calculation
*/
protected int _quad1, _quad2;
/**
* Array of recently seen field names, which may be back referenced
* by later fields.
* Defaults set to enable handling even if no header found.
*/
protected String[] _seenNames = NO_STRINGS;
protected int _seenNameCount = 0;
/**
* Array of recently seen field names, which may be back referenced
* by later fields
* Defaults set to disable handling if no header found.
*/
protected String[] _seenStringValues = null;
protected int _seenStringValueCount = -1;
/*
/**********************************************************
/* Thread-local recycling
/**********************************************************
*/
/**
*
* Note: includes possible BOMs, if those were part of the input.
*/
protected int _inputProcessed;
/*
/**********************************************************
/* Life-cycle
/**********************************************************
*/
public SmileParserBootstrapper(IOContext ctxt, InputStream in)
{
_context = ctxt;
_in = in;
_inputBuffer = ctxt.allocReadIOBuffer();
_inputEnd = _inputPtr = 0;
_inputProcessed = 0;
_bufferRecyclable = true;
}
public SmileParserBootstrapper(IOContext ctxt, byte[] inputBuffer, int inputStart, int inputLen)
{
_context = ctxt;
_in = null;
_inputBuffer = inputBuffer;
_inputPtr = inputStart;
_inputEnd = (inputStart + inputLen);
// Need to offset this for correct location info
_inputProcessed = -inputStart;
_bufferRecyclable = false;
}
public SmileParser constructParser(int generalParserFeatures, int smileFeatures,
boolean internNames,
ObjectCodec codec, BytesToNameCanonicalizer rootByteSymbols)
throws IOException, JsonParseException
{
BytesToNameCanonicalizer can = rootByteSymbols.makeChild(true, internNames);
// We just need a single byte, really, to know if it starts with header
ensureLoaded(1);
SmileParser p = new SmileParser(_context, generalParserFeatures, smileFeatures,
codec, can,
_in, _inputBuffer, _inputPtr, _inputEnd, _bufferRecyclable);
boolean hadSig = false;
if (_inputPtr < _inputEnd) { // only false for empty doc
if (_inputBuffer[_inputPtr] == SmileConstants.HEADER_BYTE_1) {
// need to ensure it gets properly handled so caller won't see the signature
hadSig = p.handleSignature(true, true);
}
} else {
/* 11-Oct-2012, tatu: Actually, let's allow empty documents even if
* header signature would otherwise be needed. This is useful for
* JAX-RS provider, empty PUT/POST payloads.
*/
return p;
}
if (!hadSig && (smileFeatures & SmileParser.Feature.REQUIRE_HEADER.getMask()) != 0) {
// Ok, first, let's see if it looks like plain JSON...
String msg;
byte firstByte = (_inputPtr < _inputEnd) ? _inputBuffer[_inputPtr] : 0;
if (firstByte == '{' || firstByte == '[') {
msg = "Input does not start with Smile format header (first byte = 0x"
+Integer.toHexString(firstByte & 0xFF)+") -- rather, it starts with '"+((char) firstByte)
+"' (plain JSON input?) -- can not parse";
} else {
msg = "Input does not start with Smile format header (first byte = 0x"
+Integer.toHexString(firstByte & 0xFF)+") and parser has REQUIRE_HEADER enabled: can not parse";
}
throw new JsonParseException(msg, JsonLocation.NA);
}
return p;
}
/*
/**********************************************************
/* Encoding detection for data format auto-detection
/**********************************************************
*/
public static MatchStrength hasSmileFormat(InputAccessor acc) throws IOException
{
// Ok: ideally we start with the header -- if so, we are golden
if (!acc.hasMoreBytes()) {
return MatchStrength.INCONCLUSIVE;
}
// We always need at least two bytes to determine, so
byte b1 = acc.nextByte();
if (!acc.hasMoreBytes()) {
return MatchStrength.INCONCLUSIVE;
}
byte b2 = acc.nextByte();
// First: do we see 3 "magic bytes"? If so, we are golden
if (b1 == SmileConstants.HEADER_BYTE_1) { // yeah, looks like marker
if (b2 != SmileConstants.HEADER_BYTE_2) {
return MatchStrength.NO_MATCH;
}
if (!acc.hasMoreBytes()) {
return MatchStrength.INCONCLUSIVE;
}
return (acc.nextByte() == SmileConstants.HEADER_BYTE_3) ?
MatchStrength.FULL_MATCH : MatchStrength.NO_MATCH;
}
// Otherwise: ideally either Object or Array:
if (b1 == SmileConstants.TOKEN_LITERAL_START_OBJECT) {
/* Object is bit easier, because now we need to get new name; i.e. can
* rule out name back-refs
*/
if (b2 == SmileConstants.TOKEN_KEY_LONG_STRING) {
return MatchStrength.SOLID_MATCH;
}
int ch = (int) b2 & 0xFF;
if (ch >= 0x80 && ch < 0xF8) {
return MatchStrength.SOLID_MATCH;
}
return MatchStrength.NO_MATCH;
}
// Array bit trickier
if (b1 == SmileConstants.TOKEN_LITERAL_START_ARRAY) {
if (!acc.hasMoreBytes()) {
return MatchStrength.INCONCLUSIVE;
}
/* For arrays, we will actually accept much wider range of values (including
* things that could otherwise collide)
*/
if (likelySmileValue(b2) || possibleSmileValue(b2, true)) {
return MatchStrength.SOLID_MATCH;
}
return MatchStrength.NO_MATCH;
}
// Scalar values are pretty weak, albeit possible; require more certain match, consider it weak:
if (likelySmileValue(b1) || possibleSmileValue(b2, false)) {
return MatchStrength.SOLID_MATCH;
}
return MatchStrength.NO_MATCH;
}
private static boolean likelySmileValue(byte b)
{
if ( (b == TOKEN_MISC_LONG_TEXT_ASCII) // 0xE0
|| (b == TOKEN_MISC_LONG_TEXT_UNICODE) // 0xE4
|| (b == TOKEN_MISC_BINARY_7BIT) // 0xE8
|| (b == TOKEN_LITERAL_START_ARRAY) // 0xF8
|| (b == TOKEN_LITERAL_START_OBJECT) // 0xFA
) {
return true;
}
int ch = b & 0xFF;
// ASCII ctrl char range is pretty good match too
if (ch >= 0x80 && ch <= 0x9F) {
return true;
}
return false;
}
/**
* @param lenient Whether to consider more speculative matches or not
* (typically true when there is context like start-array)
*/
private static boolean possibleSmileValue(byte b, boolean lenient)
{
int ch = (int) b & 0xFF;
// note: we know that likely matches have been handled already, so...
if (ch >= 0x80) {
return (ch <= 0xE0);
}
if (lenient) {
if (ch >= 0x40) { // tiny/short ASCII
return true;
}
if (ch >- 0x20) { // various constants
return (ch < 0x2C); // many reserved bytes that can't be seen
}
}
return false;
}
/*
/**********************************************************
/* Internal methods, raw input access
/**********************************************************
*/
protected boolean ensureLoaded(int minimum)
throws IOException
{
if (_in == null) { // block source; nothing more to load
return false;
}
/* Let's assume here buffer has enough room -- this will always
* be true for the limited used this method gets
*/
int gotten = (_inputEnd - _inputPtr);
while (gotten < minimum) {
int count = _in.read(_inputBuffer, _inputEnd, _inputBuffer.length - _inputEnd);
if (count < 1) {
return false;
}
_inputEnd += count;
gotten += count;
}
return true;
}
}
SmileUtil.java 0000664 0000000 0000000 00000002263 12150774126 0040056 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile package com.fasterxml.jackson.dataformat.smile;
/**
* Class for miscellaneous helper methods.
*/
public class SmileUtil
{
public static int zigzagEncode(int input) {
// Canonical version:
//return (input << 1) ^ (input >> 31);
// but this is even better
if (input < 0) {
return (input << 1) ^ -1;
}
return (input << 1);
}
public static int zigzagDecode(int encoded) {
// canonical:
//return (encoded >>> 1) ^ (-(encoded & 1));
if ((encoded & 1) == 0) { // positive
return (encoded >>> 1);
}
// negative
return (encoded >>> 1) ^ -1;
}
public static long zigzagEncode(long input) {
// Canonical version
//return (input << 1) ^ (input >> 63);
if (input < 0L) {
return (input << 1) ^ -1L;
}
return (input << 1);
}
public static long zigzagDecode(long encoded) {
// canonical:
//return (encoded >>> 1) ^ (-(encoded & 1));
if ((encoded & 1) == 0) { // positive
return (encoded >>> 1);
}
// negative
return (encoded >>> 1) ^ -1L;
}
}
Tool.java 0000664 0000000 0000000 00000012725 12150774126 0037070 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile package com.fasterxml.jackson.dataformat.smile;
import java.io.*;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.dataformat.smile.SmileFactory;
/**
* Simple command-line utility that can be used to encode JSON as Smile, or
* decode JSON from Smile: direction is indicated by single command-line
* option of either "-e" (encode) or "-d" (decode).
*
* @author tatu
*/
public class Tool
{
public final static String SUFFIX = ".lzf";
public final JsonFactory jsonFactory;
public final SmileFactory smileFactory;
public Tool()
{
jsonFactory = new JsonFactory();
smileFactory = new SmileFactory();
// check all shared refs (-> small size); add header, not trailing marker; do not use raw binary
smileFactory.configure(SmileGenerator.Feature.CHECK_SHARED_NAMES, true);
smileFactory.configure(SmileGenerator.Feature.CHECK_SHARED_STRING_VALUES, true);
smileFactory.configure(SmileGenerator.Feature.ENCODE_BINARY_AS_7BIT, true);
smileFactory.configure(SmileGenerator.Feature.WRITE_HEADER, true);
smileFactory.configure(SmileGenerator.Feature.WRITE_END_MARKER, false);
// also: do not require header
smileFactory.configure(SmileParser.Feature.REQUIRE_HEADER, false);
}
private void process(String[] args) throws IOException
{
String oper = null;
String filename = null;
if (args.length == 2) {
oper = args[0];
filename = args[1];
} else if (args.length == 1) {
oper = args[0];
} else {
showUsage();
}
boolean encode = "-e".equals(oper);
if (encode) {
encode(inputStream(filename));
} else if ("-d".equals(oper)) {
decode(inputStream(filename));
} else if ("-v".equals(oper)) {
// need to read twice (encode, verify/compare)
verify(inputStream(filename), inputStream(filename));
} else {
showUsage();
}
}
private InputStream inputStream(String filename) throws IOException
{
// if no argument given, read from stdin
if (filename == null) {
return System.in;
}
File src = new File(filename);
if (!src.exists()) {
System.err.println("File '"+filename+"' does not exist.");
System.exit(1);
}
return new FileInputStream(src);
}
private void decode(InputStream in) throws IOException
{
JsonParser jp = smileFactory.createParser(in);
JsonGenerator jg = jsonFactory.createGenerator(System.out, JsonEncoding.UTF8);
while (true) {
/* Just one trick: since Smile can have segments (multiple 'documents' in output
* stream), we should not stop at first end marker, only bail out if two are seen
*/
if (jp.nextToken() == null) {
if (jp.nextToken() == null) {
break;
}
}
jg.copyCurrentEvent(jp);
}
jp.close();
jg.close();
}
private void encode(InputStream in) throws IOException
{
JsonParser jp = jsonFactory.createParser(in);
JsonGenerator jg = smileFactory.createGenerator(System.out, JsonEncoding.UTF8);
while ((jp.nextToken()) != null) {
jg.copyCurrentEvent(jp);
}
jp.close();
jg.close();
}
private void verify(InputStream in, InputStream in2) throws IOException
{
JsonParser jp = jsonFactory.createParser(in);
ByteArrayOutputStream bytes = new ByteArrayOutputStream(4000);
JsonGenerator jg = smileFactory.createGenerator(bytes, JsonEncoding.UTF8);
// First, read, encode in memory buffer
while ((jp.nextToken()) != null) {
jg.copyCurrentEvent(jp);
}
jp.close();
jg.close();
// and then re-read both, verify
jp = jsonFactory.createParser(in2);
byte[] smile = bytes.toByteArray();
JsonParser jp2 = smileFactory.createParser(smile);
JsonToken t;
int count = 0;
while ((t = jp.nextToken()) != null) {
JsonToken t2 = jp2.nextToken();
++count;
if (t != t2) {
throw new IOException("Input and encoded differ, token #"+count+"; expected "+t+", got "+t2);
}
// also, need to have same texts...
String text1 = jp.getText();
String text2 = jp2.getText();
if (!text1.equals(text2)) {
throw new IOException("Input and encoded differ, token #"+count+"; expected text '"+text1+"', got '"+text2+"'");
}
}
System.out.println("OK: verified "+count+" tokens (from "+smile.length+" bytes of Smile encoded data), input and encoded contents are identical");
}
protected void showUsage()
{
System.err.println("Usage: java "+getClass().getName()+" -e/-d [file]");
System.err.println(" (if no file given, reads from stdin -- always writes to stdout)");
System.err.println(" -d: decode Smile encoded input as JSON");
System.err.println(" -e: encode JSON (text) input as Smile");
System.err.println(" -v: encode JSON (text) input as Smile; read back, verify, do not write out");
System.exit(1);
}
public static void main(String[] args) throws IOException {
new Tool().process(args);
}
}
0000775 0000000 0000000 00000000000 12150774126 0036416 5 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile/async NonBlockingInputFeeder.java 0000664 0000000 0000000 00000004010 12150774126 0043612 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile/async package com.fasterxml.jackson.dataformat.smile.async;
import java.io.IOException;
/**
* Interface used by non-blocking {@link com.fasterxml.jackson.core.JsonParser}
* to get more input to parse.
* It is accessed by entity that feeds content to parse; at any given point
* only one chunk of content can be processed so caller has to take care to
* only feed more content when existing content has been parsed (which occurs
* when parser's ThreadLocal contains a {@link java.lang.ref.SoftReference}
* to a buffer recycler used to provide a low-cost
* buffer recycling for Smile-specific buffers.
*/
final protected static ThreadLocalThreadLocal contains a {@link java.lang.ref.SoftReference}
* to a buffer recycler used to provide a low-cost
* buffer recycling for Smile-specific buffers.
*/
final protected static ThreadLocalnextToken is called). Once application using
* non-blocking parser has no more data to feed it should call
* {@link #endOfInput} to indicate end of logical input stream.
*
* @author Tatu Saloranta
*/
public interface NonBlockingInputFeeder
{
/**
* Method called to check whether it is ok to feed more data: parser returns true
* if it has no more content to parse (and it is ok to feed more); otherwise false
* (and no data should yet be fed).
*/
public boolean needMoreInput();
/**
* Method that can be called to feed more data, if (and only if)
* {@link #needMoreInput} returns true.
*
* @param data Byte array that contains data to feed: caller must ensure data remains
* stable until it is fully processed (which is true when {@link #needMoreInput}
* returns true)
* @param offset Offset within array where input data to process starts
* @param len Length of input data within array to process.
*
* @throws IOException if the state is such that this method should not be called
* (has not yet consumed existing input data, or has been marked as closed)
*/
public void feedInput(byte[] data, int offset, int len) throws IOException;
/**
* Method that should be called after last chunk of data to parse has been fed
* (with {@link #feedInput}); can be called regardless of what {@link #needMoreInput}
* returns. After calling this method, no more data can be fed; and parser assumes
* no more data will be available.
*/
public void endOfInput();
}
NonBlockingParser.java 0000664 0000000 0000000 00000002443 12150774126 0042644 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile/async package com.fasterxml.jackson.dataformat.smile.async;
import java.io.IOException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonToken;
/**
* Mix-in interface used with {@link com.fasterxml.jackson.core.JsonParser},
* extending it with features needed to process data in non-blocking
* ("asynchronous")
*/
public interface NonBlockingParser
extends NonBlockingInputFeeder
{
/**
* Method that can be called when current token is not yet
* available via {@link com.fasterxml.jackson.core.JsonParser#getCurrentToken},
* to try to figure out what kind of token will be eventually returned
* once the whole token is decoded, if known.
* Note that this may return {@link com.fasterxml.jackson.core.JsonToken#NOT_AVAILABLE}:
* this occurs either if current token is known (and thus no more
* parsing can be done yet), or if not enough content is available
* to even determine next token type (typically we only need a single
* byte, but in boundaries zero bytes is available).
*
* @return Token that will eventually be returned with
* a call to {@link com.fasterxml.jackson.core.JsonParser#nextToken}, if known
*/
public JsonToken peekNextToken() throws IOException, JsonParseException;
}
NonBlockingParserImpl.java 0000664 0000000 0000000 00000234166 12150774126 0043477 0 ustar 00root root 0000000 0000000 jackson-dataformat-smile-jackson-dataformat-smile-2.2.2/src/main/java/com/fasterxml/jackson/dataformat/smile/async package com.fasterxml.jackson.dataformat.smile.async;
import java.io.*;
import java.lang.ref.SoftReference;
//import java.math.BigDecimal;
//import java.math.BigInteger;
import java.util.Arrays;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.base.ParserBase;
import com.fasterxml.jackson.core.io.IOContext;
import com.fasterxml.jackson.core.sym.BytesToNameCanonicalizer;
import com.fasterxml.jackson.core.sym.Name;
import com.fasterxml.jackson.dataformat.smile.*;
import static com.fasterxml.jackson.dataformat.smile.SmileConstants.BYTE_MARKER_END_OF_STRING;
public class NonBlockingParserImpl
extends ParserBase
implements NonBlockingParser, NonBlockingInputFeeder
{
private final static byte[] NO_BYTES = new byte[0];
private final static int[] NO_INTS = new int[0];
private final static String[] NO_STRINGS = new String[0];
/*
/**********************************************************************
/* State constants
/**********************************************************************
*/
// // // Initial bootstrapping states:
/**
* State right after parser has been constructed: waiting for header
* (which may or may not be mandatory).
*/
protected final static int STATE_INITIAL = 0;
/**
* State for recognized header marker, either in-feed or initial.
*/
protected final static int STATE_HEADER = 1;
/**
* State in which we are right after decoding a full token.
*/
protected final static int STATE_TOKEN_COMPLETE = 2;
// // // States for decoding numbers:
protected final static int STATE_NUMBER_INT = 10;
protected final static int STATE_NUMBER_LONG = 11;
protected final static int STATE_NUMBER_BIGINT = 12;
protected final static int STATE_NUMBER_FLOAT = 13;
protected final static int STATE_NUMBER_DOUBLE = 14;
protected final static int STATE_NUMBER_BIGDEC = 15;
protected final static int STATE_SHORT_ASCII = 20;
protected final static int STATE_SHORT_UNICODE = 21;
protected final static int STATE_LONG_ASCII = 22;
protected final static int STATE_LONG_UNICODE = 23;
protected final static int STATE_LONG_SHARED = 24;
protected final static int STATE_RAW_BINARY = 25;
protected final static int STATE_QUOTED_BINARY = 26;
/*
/**********************************************************************
/* Configuration
/**********************************************************************
*/
/**
* Codec used for data binding when (if) requested.
*/
protected ObjectCodec _objectCodec;
/**
* Flag that indicates whether content can legally have raw (unquoted)
* binary data. Since this information is included both in header and
* in actual binary data blocks there is redundancy, and we want to
* ensure settings are compliant. Using application may also want to
* know this setting in case it does some direct (random) access.
*/
protected boolean _mayContainRawBinary;
protected final boolean _cfgRequireHeader;
/**
* Helper object used for low-level recycling of Smile-generator
* specific buffers.
*/
final protected SmileBufferRecyclerThreadLocal contains a {@link java.lang.ref.SoftReference}
* to a buffer recycler used to provide a low-cost
* buffer recycling for Smile-specific buffers.
*/
final protected static ThreadLocal