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import org.apache.tools.ant.taskdefs.*;
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import org.apache.tools.ant.taskdefs.*;
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import org.apache.tools.ant.types.*;
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import org.apache.tools.ant.types.*;
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/**
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/**
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 * Custom ANT task - given a code JAR and a source base, build a JAR
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 * Custom ANT task - given a code JAR and a source base, build a JAR
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 * containing the corresponding source code.
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 * containing the corresponding source code.
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 *
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 *
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 * @ant.examples Here are examples
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 * @ant.examples Here are examples
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 *
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 *
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 */
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 */
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public class JarSrc extends Task
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public class JarSrc extends Task
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{
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{
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	/**
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	/**
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	 * The binary source file; the src jar will be constructed with a
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	 * The binary source file; the src jar will be constructed with a
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	 */
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	 */
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	private String binary;
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	private String binary;
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	/**
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	/**
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	 * The location that the source file will be created in.
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	 * The location that the source file will be created in.
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	 */
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	 */
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	private String toDir;
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	private String toDir;
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	/**
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	/**
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	 * The FileSet indicating which corresponding source files should be
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	 * The FileSet indicating which corresponding source files should be
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	 * obtained (if they exist) from the source path.
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	 * obtained (if they exist) from the source path.
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	 */
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	 */
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	private FileSet correspondingFileSet = null;
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	private FileSet correspondingFileSet = null;
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36 
 
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	/**
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	/**
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	 * The set of directories under which the source code is located in
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	 * The set of directories under which the source code is located in
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	 * its' expected location.
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	 * its' expected location.
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	 */
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	 */
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	private ArrayList dirsets = new ArrayList();
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	private ArrayList dirsets = new ArrayList();
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	/**
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	/**
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	 * Set the filename of the source file. This file is used as a basis
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	 * Set the filename of the source file. This file is used as a basis
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	 * for emulation, by constructing a src package to match.
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	 * for emulation, by constructing a src package to match.
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	 *
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	 *
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	 * @param value the filename.
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	 * @param value the filename.
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	 */
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	 */
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	public void setBinary( String value )
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	public void setBinary( String value )
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	{
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	{
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		binary = value;
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		binary = value;
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	}
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	}
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	/**
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	/**
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	 * Set the 'todir', being the directory location in which the source
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	 * Set the 'todir', being the directory location in which the source
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	 * file will be constructed.
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	 * file will be constructed.
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	 *
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	 *
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	 * @param value the directory.
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	 * @param value the directory.
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	 */
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	 */
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	public void setToDir( String value )
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	public void setToDir( String value )
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	{
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	{
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		toDir = value;
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		toDir = value;
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	}
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	}
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	/**
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	/**
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	 * Nested element - this tag supports nested 'DirSet' elements.
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	 * Nested element - this tag supports nested 'DirSet' elements.
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	 */
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	 */
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	public DirSet createDirSet()
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	public DirSet createDirSet()
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	{
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	{
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		DirSet dirset = new DirSet();
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		DirSet dirset = new DirSet();
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		dirsets.add( dirset );
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		dirsets.add( dirset );
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		return dirset;
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		return dirset;
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	}
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	}
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	/**
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	/**
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	 *
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	 *
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	 */
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	 */
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	public void execute() throws BuildException
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	public void execute() throws BuildException
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	{
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	{
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		if ( dirsets.size() == 0 )
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		if ( dirsets.size() == 0 )
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		{
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		{
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			throw new BuildException("At least one DirSet must be provided");
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			throw new BuildException("At least one DirSet must be provided");
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		}
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		}
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		for ( Iterator i=dirsets.iterator(); i.hasNext(); )
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		for ( Iterator i=dirsets.iterator(); i.hasNext(); )
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		{
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		{
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			DirSet dirset = (DirSet)i.next();
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			DirSet dirset = (DirSet)i.next();
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				File srcDirectory = new File( basedir, directories[j] );
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				File srcDirectory = new File( basedir, directories[j] );
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				packageSource( srcDirectory );
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				packageSource( srcDirectory );
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			}
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			}
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		}
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		}
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	}
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	}
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	/**
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	/**
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	 *
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	 *
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	 */
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	 */
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	private void packageSource( File srcDir ) throws BuildException
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	private void packageSource( File srcDir ) throws BuildException
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	{
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	{
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		log("Packaging source from '" + srcDir + "'", Project.MSG_VERBOSE );
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		log("Packaging source from '" + srcDir + "'", Project.MSG_VERBOSE );
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		FileSet corresponding = null;
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		FileSet corresponding = null;
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106 
 
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		try
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		try
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		{
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		{
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			corresponding = getCorrespondingNames();
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			corresponding = getCorrespondingNames();
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			corresponding.setDir( srcDir );
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			corresponding.setDir( srcDir );
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		}
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		}
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		catch (IOException x)
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		catch (IOException x)
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		{
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		{
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			throw new BuildException( "Could not read binary '" + binary + "'", x);
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			throw new BuildException( "Could not read binary '" + binary + "'", x);
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		}
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		}
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		File binarySource = new File( srcDir, binary );
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		File binarySource = new File( srcDir, binary );
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		String binaryName = binarySource.getName();
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		String binaryName = binarySource.getName();
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		String destName = binaryName.substring(0, binaryName.lastIndexOf("."));
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		String destName = binaryName.substring(0, binaryName.lastIndexOf("."));
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		destName += "-src.jar";
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		destName += "-src.jar";
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		File destDir = new File( toDir );
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		File destDir = new File( toDir );
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		File destFile = new File( toDir, destName );
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		File destFile = new File( toDir, destName );
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123 
 
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		// Check that the corresponding src JAR exists; if not, create one.
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		// Check that the corresponding src JAR exists; if not, create one.
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		Jar jarTask = new Jar();
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		Jar jarTask = new Jar();
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		jarTask.setTaskName(this.getTaskName());
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		jarTask.setTaskName(this.getTaskName());
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		jarTask.setProject( getProject() );
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		jarTask.setProject( getProject() );
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		jarTask.setDestFile( destFile );
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		jarTask.setDestFile( destFile );
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		jarTask.setUpdate(true);
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		jarTask.setUpdate(true);
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130 
 
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		jarTask.addFileset( corresponding );
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		jarTask.addFileset( corresponding );
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		jarTask.execute();
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		jarTask.execute();
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	}
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	}
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134 
 
135 
	/**
 135 
	/**
136 
	 * Get the corresponding java source names (as a FileSet), by
 136 
	 * Get the corresponding java source names (as a FileSet), by
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	 * using the configured 'binary'.
 137 
	 * using the configured 'binary'.
138 
	 *
138 
	 *
139 
	 * @return a FileSet containing a list of the expected source
 139 
	 * @return a FileSet containing a list of the expected source
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	 *         files.
 140 
	 *         files.
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	 *
141 
	 *
142 
	 * @throws IOException if the binary could not be read.
 142 
	 * @throws IOException if the binary could not be read.
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	 */
 143 
	 */
144 
	private FileSet getCorrespondingNames() throws IOException
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	private FileSet getCorrespondingNames() throws IOException
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	{
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	{
146 
		if ( correspondingFileSet == null )
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		if ( correspondingFileSet == null )
147 
		{
 147 
		{
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			FileSet corresponding = new FileSet();
 148 
			FileSet corresponding = new FileSet();
149 
			corresponding.setProject( getProject() );
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			corresponding.setProject( getProject() );
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150 
 
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			ZipFile zf = null;
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			ZipFile zf = null;
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			try
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			try
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			{
 153 
			{
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				log("Loading from source binary '" + binary + "'", Project.MSG_VERBOSE );
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				log("Loading from source binary '" + binary + "'", Project.MSG_VERBOSE );
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				zf = new ZipFile(binary);
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				zf = new ZipFile(binary);
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				Enumeration enum = zf.entries();
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				Enumeration l_enum = zf.entries();
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				while (enum.hasMoreElements())
157 
				while (l_enum.hasMoreElements())
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				{
 158 
				{
159 
					ZipEntry ze = (ZipEntry)enum.nextElement();
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					ZipEntry ze = (ZipEntry)l_enum.nextElement();
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					String entryName = ze.getName();
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					String entryName = ze.getName();
161 
					if ( entryName.endsWith( ".class" ) )
 161 
					if ( entryName.endsWith( ".class" ) )
162 
					{
 162 
					{
163 
						String correspondingName = entryName.substring(0, entryName.indexOf(".class") );
 163 
						String correspondingName = entryName.substring(0, entryName.indexOf(".class") );
164 
						correspondingName += ".java";
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						correspondingName += ".java";
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						log("Adding '" + correspondingName + "' to FileSet", Project.MSG_VERBOSE );
165 
						log("Adding '" + correspondingName + "' to FileSet", Project.MSG_VERBOSE );
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						corresponding.setIncludes( correspondingName );
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						corresponding.setIncludes( correspondingName );
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					}
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					}
168 
				}
 168 
				}
169 
			}
169 
			}
170 
			finally
170 
			finally
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			{
 171 
			{
172 
				if (zf != null)
172 
				if (zf != null)
173 
				{
 173 
				{
174 
					try
174 
					try
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					{
 175 
					{
176 
						zf.close();
 176 
						zf.close();
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					}
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					}
178 
					catch (IOException e)
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					catch (IOException e)
179 
					{
 179 
					{
180 
					}
 180 
					}
181 
				}
 181 
				}
182 
			}
 182 
			}
183 
			correspondingFileSet = corresponding;
 183 
			correspondingFileSet = corresponding;
184 
		}
184 
		}
185 
		return correspondingFileSet;
 185 
		return correspondingFileSet;
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	}
 186 
	}
187 
}
 187 
}