proguard.io
Class JarWriter

java.lang.Object
  proguard.io.JarWriter

All Implemented Interfaces:

DataEntryWriter, Finisher

public class JarWriter
extends java.lang.Object
implements DataEntryWriter, Finisher

This DataEntryWriter sends data entries to a given jar/zip file. The manifest and comment properties can optionally be set.

Constructor Summary

JarWriter(DataEntryWriter dataEntryWriter)
Creates a new JarWriter without manifest or comment.

JarWriter(DataEntryWriter dataEntryWriter, java.util.jar.Manifest manifest, java.lang.String comment)
Creates a new JarWriter.

Method Summary

void	close() Finishes writing all data entries.
boolean	createDirectory(DataEntry dataEntry) Creates a directory.
void	finish() Finishes an output stream right before it is closed.
java.io.OutputStream	getOutputStream(DataEntry dataEntry) Returns an output stream for writing data.
java.io.OutputStream	getOutputStream(DataEntry dataEntry, Finisher finisher) Returns an output stream for writing data.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JarWriter

public JarWriter(DataEntryWriter dataEntryWriter)

Creates a new JarWriter without manifest or comment.

JarWriter

public JarWriter(DataEntryWriter dataEntryWriter,
                 java.util.jar.Manifest manifest,
                 java.lang.String comment)

Creates a new JarWriter.

Method Detail

createDirectory

public boolean createDirectory(DataEntry dataEntry)
                        throws java.io.IOException

Description copied from interface: DataEntryWriter

Creates a directory.

Specified by:

createDirectory in interface DataEntryWriter

Parameters:

dataEntry - the data entry for which the directory is to be created.

Returns:

whether the directory has been created.

Throws:

java.io.IOException

getOutputStream

public java.io.OutputStream getOutputStream(DataEntry dataEntry)
                                     throws java.io.IOException

Description copied from interface: DataEntryWriter

Returns an output stream for writing data. The caller must not close the output stream; closing the output stream is the responsibility of the implementation of this interface.

Specified by:

getOutputStream in interface DataEntryWriter

Parameters:

dataEntry - the data entry for which the output stream is to be created.

Returns:

the output stream. The stream may be null to indicate that the data entry should not be written.

Throws:

java.io.IOException

getOutputStream

public java.io.OutputStream getOutputStream(DataEntry dataEntry,
                                            Finisher finisher)
                                     throws java.io.IOException

Description copied from interface: DataEntryWriter

Returns an output stream for writing data. The caller must not close the output stream; closing the output stream is the responsibility of the implementation of this interface.

Specified by:

getOutputStream in interface DataEntryWriter

Parameters:

dataEntry - the data entry for which the output stream is to be created.

finisher - the optional finisher that will be called before this class closes the output stream (at some later point in time) that will be returned (now).

Returns:

the output stream. The stream may be null to indicate that the data entry should not be written.

Throws:

java.io.IOException

finish

public void finish()
            throws java.io.IOException

Description copied from interface: Finisher

Finishes an output stream right before it is closed.

Specified by:

finish in interface Finisher

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Description copied from interface: DataEntryWriter

Finishes writing all data entries.

Specified by:

close in interface DataEntryWriter

Throws:

java.io.IOException