?? jarreader.java
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/* $Id: JarReader.java,v 1.3.2.1 2006/01/16 22:57:56 eric Exp $ * * ProGuard -- shrinking, optimization, and obfuscation of Java class files. * * Copyright (c) 2002-2006 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 java.io.*;import java.util.zip.*;/** * This DataEntryReader lets a given DataEntryReader read all data entries of * the read jar/war/zip data entries. * * @author Eric Lafortune */public class JarReader implements DataEntryReader{ DataEntryReader dataEntryReader; /** * Creates a new JarReader. */ public JarReader(DataEntryReader dataEntryReader) { this.dataEntryReader = dataEntryReader; } // Implementation for DataEntryReader. public void read(DataEntry dataEntry) throws IOException { ZipInputStream zipInputStream = new ZipInputStream(dataEntry.getInputStream()); try { // Get all entries from the input jar. while (true) { // Can we get another entry? ZipEntry zipEntry = zipInputStream.getNextEntry(); if (zipEntry == null) { break; } if (!zipEntry.isDirectory()) { // Delegate the actual reading to the data entry reader. dataEntryReader.read(new ZipDataEntry(dataEntry, zipEntry, zipInputStream)); } } } finally { dataEntry.closeInputStream(); } }}
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