?? classfilerewriter.java
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/* $Id: ClassFileRewriter.java,v 1.3.2.1 2006/01/16 22:57:55 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 proguard.classfile.*;import java.io.*;/** * This DataEntryReader reads class file entries and writes their corresponding * versions from the ClassPool to a given DataEntryWriter. * * @author Eric Lafortune */public class ClassFileRewriter implements DataEntryReader{ private ClassPool classPool; private DataEntryWriter dataEntryWriter; public ClassFileRewriter(ClassPool classPool, DataEntryWriter dataEntryWriter) { this.classPool = classPool; this.dataEntryWriter = dataEntryWriter; } // Implementations for DataEntryReader. public void read(DataEntry dataEntry) throws IOException { String inputName = dataEntry.getName(); String className = inputName.substring(0, inputName.length() - ClassConstants.CLASS_FILE_EXTENSION.length()); // Find the modified class corrsponding to the input entry. ProgramClassFile programClassFile = (ProgramClassFile)classPool.getClass(className); if (programClassFile != null) { // Rename the data entry if necessary. String newClassName = programClassFile.getName(); if (!className.equals(newClassName)) { dataEntry = new RenamedDataEntry(dataEntry, newClassName + ClassConstants.CLASS_FILE_EXTENSION); } // Get the output entry corresponding to this input entry. OutputStream outputStream = dataEntryWriter.getOutputStream(dataEntry); if (outputStream != null) { // Write the class to the output entry. DataOutputStream classOutputStream = new DataOutputStream(outputStream); programClassFile.write(classOutputStream); classOutputStream.flush(); } } }}
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