plexus-interactivity-api/ 0000755 0001750 0001750 00000000000 10632266573 014537 5 ustar paul paul plexus-interactivity-api/pom.xml 0000644 0001750 0001750 00000001326 10603302041 016031 0 ustar paul paul
plexus-interactivity
org.codehaus.plexus
1.0-alpha-6
4.0.0
plexus-interactivity-api
Plexus Default Interactivity Handler
1.0-alpha-6
org.codehaus.plexus
plexus-utils
1.4
plexus-interactivity-api/src/ 0000755 0001750 0001750 00000000000 10632266571 015324 5 ustar paul paul plexus-interactivity-api/src/main/ 0000755 0001750 0001750 00000000000 10632266572 016251 5 ustar paul paul plexus-interactivity-api/src/main/resources/ 0000755 0001750 0001750 00000000000 10632266572 020263 5 ustar paul paul plexus-interactivity-api/src/main/resources/META-INF/ 0000755 0001750 0001750 00000000000 10632266572 021423 5 ustar paul paul plexus-interactivity-api/src/main/resources/META-INF/plexus/ 0000755 0001750 0001750 00000000000 10632266572 022743 5 ustar paul paul plexus-interactivity-api/src/main/resources/META-INF/plexus/components.xml 0000644 0001750 0001750 00000002553 10572050411 025641 0 ustar paul paul
org.codehaus.plexus.components.interactivity.InputHandler
default
org.codehaus.plexus.components.interactivity.DefaultInputHandler
per-lookup
org.codehaus.plexus.components.interactivity.OutputHandler
default
org.codehaus.plexus.components.interactivity.DefaultOutputHandler
per-lookup
org.codehaus.plexus.components.interactivity.Prompter
default
org.codehaus.plexus.components.interactivity.DefaultPrompter
per-lookup
org.codehaus.plexus.components.interactivity.InputHandler
default
org.codehaus.plexus.components.interactivity.OutputHandler
default
plexus-interactivity-api/src/main/java/ 0000755 0001750 0001750 00000000000 10632266571 017171 5 ustar paul paul plexus-interactivity-api/src/main/java/org/ 0000755 0001750 0001750 00000000000 10632266571 017760 5 ustar paul paul plexus-interactivity-api/src/main/java/org/codehaus/ 0000755 0001750 0001750 00000000000 10632266571 021553 5 ustar paul paul plexus-interactivity-api/src/main/java/org/codehaus/plexus/ 0000755 0001750 0001750 00000000000 10632266571 023073 5 ustar paul paul plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/ 0000755 0001750 0001750 00000000000 10632266571 025260 5 ustar paul paul plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/ 0000755 0001750 0001750 00000000000 10632266572 030157 5 ustar paul paul ././@LongLink 0000000 0000000 0000000 00000000153 00000000000 011564 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/PrompterException.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/PrompterExceptio0000644 0001750 0001750 00000003125 10322516047 033403 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/**
* Error while prompting.
*
* @author Brett Porter
* @version $Id: PrompterException.java 2649 2005-10-10 16:51:51Z brett $
*/
public class PrompterException
extends Exception
{
public PrompterException( String message )
{
super( message );
}
public PrompterException( String message, Throwable cause )
{
super( message, cause );
}
}
././@LongLink 0000000 0000000 0000000 00000000147 00000000000 011567 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/OutputHandler.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/OutputHandler.ja0000644 0001750 0001750 00000003472 10322516047 033266 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import java.io.IOException;
/**
* Manage user output to different sources.
*
* @author Brett Porter
* @version $Id: OutputHandler.java 2649 2005-10-10 16:51:51Z brett $
*/
public interface OutputHandler
{
String ROLE = OutputHandler.class.getName();
/**
* Write a single line of input, excluding the newline at the end.
* @param line the line
*/
void write( String line )
throws IOException;
/**
* Write a single line of input, including the newline at the end.
* @param line the line
*/
void writeLine( String line )
throws IOException;
}
././@LongLink 0000000 0000000 0000000 00000000156 00000000000 011567 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultOutputHandler.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultOutputHan0000644 0001750 0001750 00000004314 10322514664 033332 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Disposable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Default output handler, that uses the console.
*
* @author Brett Porter
* @version $Id: DefaultOutputHandler.java 2648 2005-10-10 16:41:24Z brett $
*/
public class DefaultOutputHandler
implements Initializable, Disposable, OutputHandler
{
private PrintWriter consoleWriter;
public void initialize()
throws InitializationException
{
consoleWriter = new PrintWriter( System.out );
}
public void dispose()
{
consoleWriter.close();
}
public void write( String line )
throws IOException
{
consoleWriter.print( line );
consoleWriter.flush();
}
public void writeLine( String line )
throws IOException
{
consoleWriter.println();
}
}
plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/Prompter.java 0000644 0001750 0001750 00000003702 10322516047 032623 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import java.util.List;
/**
* Prompt the user for input.
*
* @author Brett Porter
* @version $Id: Prompter.java 2649 2005-10-10 16:51:51Z brett $
*/
public interface Prompter
{
String ROLE = Prompter.class.getName();
String prompt( String message )
throws PrompterException;
String prompt( String message, String defaultReply )
throws PrompterException;
String prompt( String message, List possibleValues )
throws PrompterException;
String prompt( String message, List possibleValues, String defaultReply )
throws PrompterException;
String promptForPassword( String message )
throws PrompterException;
void showMessage( String message )
throws PrompterException;
}
././@LongLink 0000000 0000000 0000000 00000000155 00000000000 011566 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultInputHandler.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultInputHand0000755 0001750 0001750 00000004757 10322516047 033310 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Disposable;
import org.codehaus.plexus.components.interactivity.AbstractInputHandler;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/**
* Default input handler, that uses the console.
*
* @author Brett Porter
* @version $Id: DefaultInputHandler.java 2649 2005-10-10 16:51:51Z brett $
*/
public class DefaultInputHandler
extends AbstractInputHandler
implements Initializable, Disposable
{
private BufferedReader consoleReader;
public String readLine()
throws IOException
{
return consoleReader.readLine();
}
public String readPassword()
throws IOException
{
return consoleReader.readLine();
}
public void initialize()
throws InitializationException
{
consoleReader = new BufferedReader( new InputStreamReader( System.in ) );
}
public void dispose()
{
try
{
consoleReader.close();
}
catch ( IOException e )
{
getLogger().error( "Error closing input stream must be ignored", e );
}
}
}
././@LongLink 0000000 0000000 0000000 00000000151 00000000000 011562 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultPrompter.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/DefaultPrompter.0000644 0001750 0001750 00000014013 10322516047 033263 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import org.codehaus.plexus.util.StringUtils;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
/**
* Default prompter.
*
* @author Brett Porter
* @version $Id: DefaultPrompter.java 2649 2005-10-10 16:51:51Z brett $
*/
public class DefaultPrompter
implements Prompter
{
/**
* @requirement
*/
private OutputHandler outputHandler;
/**
* @requirement
*/
private InputHandler inputHandler;
public String prompt( String message )
throws PrompterException
{
try
{
writePrompt( message );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present prompt", e );
}
try
{
return inputHandler.readLine();
}
catch ( IOException e )
{
throw new PrompterException( "Failed to read user response", e );
}
}
public String prompt( String message, String defaultReply )
throws PrompterException
{
try
{
writePrompt( formatMessage( message, null, defaultReply ) );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present prompt", e );
}
try
{
String line = inputHandler.readLine();
if ( StringUtils.isEmpty( line ) )
{
line = defaultReply;
}
return line;
}
catch ( IOException e )
{
throw new PrompterException( "Failed to read user response", e );
}
}
public String prompt( String message, List possibleValues, String defaultReply )
throws PrompterException
{
String formattedMessage = formatMessage( message, possibleValues, defaultReply );
String line;
do
{
try
{
writePrompt( formattedMessage );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present prompt", e );
}
try
{
line = inputHandler.readLine();
}
catch ( IOException e )
{
throw new PrompterException( "Failed to read user response", e );
}
if ( StringUtils.isEmpty( line ) )
{
line = defaultReply;
}
if ( line != null && !possibleValues.contains( line ) )
{
try
{
outputHandler.writeLine( "Invalid selection." );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present feedback", e );
}
}
}
while ( line == null || !possibleValues.contains( line ) );
return line;
}
public String prompt( String message, List possibleValues )
throws PrompterException
{
return prompt( message, possibleValues, null );
}
public String promptForPassword( String message )
throws PrompterException
{
try
{
writePrompt( message );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present prompt", e );
}
try
{
return inputHandler.readPassword();
}
catch ( IOException e )
{
throw new PrompterException( "Failed to read user response", e );
}
}
private String formatMessage( String message, List possibleValues, String defaultReply )
{
StringBuffer formatted = new StringBuffer( message.length() * 2 );
formatted.append( message );
if ( possibleValues != null && !possibleValues.isEmpty() )
{
formatted.append( " (" );
for ( Iterator it = possibleValues.iterator(); it.hasNext(); )
{
String possibleValue = (String) it.next();
formatted.append( possibleValue );
if ( it.hasNext() )
{
formatted.append( '/' );
}
}
formatted.append( ')' );
}
if ( defaultReply != null )
{
formatted.append( ' ' ).append( defaultReply ).append( ": " );
}
return formatted.toString();
}
private void writePrompt( String message )
throws IOException
{
outputHandler.write( message + ": " );
}
public void showMessage( String message )
throws PrompterException
{
try
{
writePrompt( message );
}
catch ( IOException e )
{
throw new PrompterException( "Failed to present prompt", e );
}
}
}
././@LongLink 0000000 0000000 0000000 00000000156 00000000000 011567 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/AbstractInputHandler.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/AbstractInputHan0000755 0001750 0001750 00000003611 10322516047 033307 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import org.codehaus.plexus.logging.AbstractLogEnabled;
import java.util.List;
import java.util.ArrayList;
import java.io.IOException;
/**
* Base input handler, implements a default readMultipleLines.
*
* @author Brett Porter
* @version $Id: AbstractInputHandler.java 2649 2005-10-10 16:51:51Z brett $
*/
public abstract class AbstractInputHandler
extends AbstractLogEnabled
implements InputHandler
{
public List readMultipleLines()
throws IOException
{
List lines = new ArrayList();
String line = readLine();
while ( line != null && line.length() > 0 )
{
lines.add( line );
line = readLine();
}
return lines;
}
}
././@LongLink 0000000 0000000 0000000 00000000146 00000000000 011566 L ustar root root plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/InputHandler.java plexus-interactivity-api/src/main/java/org/codehaus/plexus/components/interactivity/InputHandler.jav0000755 0001750 0001750 00000004527 10322516047 033260 0 ustar paul paul package org.codehaus.plexus.components.interactivity;
/*
* The MIT License
*
* Copyright (c) 2005, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import java.util.List;
import java.io.IOException;
/**
* Manage user input from different sources.
*
* @todo should this also echo any prompts before the input?
* @todo should this validate the input, reprompt if required?
* @todo readBoolean, readInt, readSingleChar - readLine's that parse the input
* @author Brett Porter
* @version $Id: InputHandler.java 2649 2005-10-10 16:51:51Z brett $
*/
public interface InputHandler
{
String ROLE = InputHandler.class.getName();
/**
* Read a single line of input, swalling the newline at the end.
* If the input can be echoed, it will be.
* @return the line read
*/
String readLine()
throws IOException;
/**
* Read a single line of input, swalling the newline at the end.
* This method guarantees input is not echoed.
* @return the line read
*/
String readPassword()
throws IOException;
/**
* Read a set of lines. Equivalent to multiple calls to {@link #readLine()}.
* Ends when an empty line is encountered.
* @return a list of lines read
*/
List readMultipleLines()
throws IOException;
}