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Diffstat (limited to 'src/proguard/io/JarWriter.java')
| -rw-r--r-- | src/proguard/io/JarWriter.java | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/src/proguard/io/JarWriter.java b/src/proguard/io/JarWriter.java deleted file mode 100644 index 5437f28..0000000 --- a/src/proguard/io/JarWriter.java +++ /dev/null @@ -1,234 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard.io; - -import proguard.classfile.ClassConstants; - -import java.io.*; -import java.util.*; -import java.util.jar.*; -import java.util.zip.*; - -/** - * This DataEntryWriter sends data entries to a given jar/zip file. - * The manifest and comment properties can optionally be set. - * - * @author Eric Lafortune - */ -public class JarWriter implements DataEntryWriter, Finisher -{ - private final DataEntryWriter dataEntryWriter; - private final Manifest manifest; - private final String comment; - - private OutputStream currentParentOutputStream; - private ZipOutputStream currentJarOutputStream; - private Finisher currentFinisher; - private DataEntry currentDataEntry; - - // The names of the jar entries that are already in the jar. - private final Set jarEntryNames = new HashSet(); - - - /** - * Creates a new JarWriter without manifest or comment. - */ - public JarWriter(DataEntryWriter dataEntryWriter) - { - this(dataEntryWriter, null, null); - } - - - /** - * Creates a new JarWriter. - */ - public JarWriter(DataEntryWriter dataEntryWriter, - Manifest manifest, - String comment) - { - this.dataEntryWriter = dataEntryWriter; - this.manifest = manifest; - this.comment = comment; - } - - - // Implementations for DataEntryWriter. - - public boolean createDirectory(DataEntry dataEntry) throws IOException - { - // Make sure we can start with a new entry. - if (!prepareEntry(dataEntry)) - { - return false; - } - - // Close the previous ZIP entry, if any. - closeEntry(); - - // Get the directory entry name. - String name = dataEntry.getName() + ClassConstants.PACKAGE_SEPARATOR; - - // We have to check if the name is already used, because - // ZipOutputStream doesn't handle this case properly (it throws - // an exception which can be caught, but the ZipDataEntry is - // remembered anyway). - if (jarEntryNames.add(name)) - { - // Create a new directory entry. - currentJarOutputStream.putNextEntry(new ZipEntry(name)); - currentJarOutputStream.closeEntry(); - } - - // Clear the finisher. - currentFinisher = null; - currentDataEntry = null; - - return true; - } - - - public OutputStream getOutputStream(DataEntry dataEntry) throws IOException - { - return getOutputStream(dataEntry, null); - } - - - public OutputStream getOutputStream(DataEntry dataEntry, - Finisher finisher) throws IOException - { - //Make sure we can start with a new entry. - if (!prepareEntry(dataEntry)) - { - return null; - } - - // Do we need a new entry? - if (!dataEntry.equals(currentDataEntry)) - { - // Close the previous ZIP entry, if any. - closeEntry(); - - // Get the entry name. - String name = dataEntry.getName(); - - // We have to check if the name is already used, because - // ZipOutputStream doesn't handle this case properly (it throws - // an exception which can be caught, but the ZipDataEntry is - // remembered anyway). - if (!jarEntryNames.add(name)) - { - throw new IOException("Duplicate zip entry ["+dataEntry+"]"); - } - - // Create a new entry. - currentJarOutputStream.putNextEntry(new ZipEntry(name)); - - // Set up the finisher for the entry. - currentFinisher = finisher; - currentDataEntry = dataEntry; - } - - return currentJarOutputStream; - } - - - public void finish() throws IOException - { - // Finish the entire ZIP stream, if any. - if (currentJarOutputStream != null) - { - // Close the previous ZIP entry, if any. - closeEntry(); - - // Finish the entire ZIP stream. - currentJarOutputStream.finish(); - currentJarOutputStream = null; - currentParentOutputStream = null; - jarEntryNames.clear(); - } - } - - - public void close() throws IOException - { - // Close the parent stream. - dataEntryWriter.close(); - } - - - // Small utility methods. - - /** - * Makes sure the current output stream is set up for the given entry. - */ - private boolean prepareEntry(DataEntry dataEntry) throws IOException - { - // Get the parent stream, new or existing. - // This may finish our own jar output stream. - OutputStream parentOutputStream = - dataEntryWriter.getOutputStream(dataEntry.getParent(), this); - - // Did we get a stream? - if (parentOutputStream == null) - { - return false; - } - - // Do we need a new stream? - if (currentParentOutputStream == null) - { - currentParentOutputStream = parentOutputStream; - - // Create a new jar stream, with a manifest, if set. - currentJarOutputStream = manifest != null ? - new JarOutputStream(parentOutputStream, manifest) : - new ZipOutputStream(parentOutputStream); - - // Add a comment, if set. - if (comment != null) - { - currentJarOutputStream.setComment(comment); - } - } - - return true; - } - - - /** - * Closes the previous ZIP entry, if any. - */ - private void closeEntry() throws IOException - { - if (currentDataEntry != null) - { - // Let any finisher finish up first. - if (currentFinisher != null) - { - currentFinisher.finish(); - currentFinisher = null; - } - - currentJarOutputStream.closeEntry(); - currentDataEntry = null; - } - } -} |