1 files changed, 80 insertions, 0 deletions
diff --git a/src/proguard/io/ClassRewriter.java b/src/proguard/io/ClassRewriter.java
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+++ b/src/proguard/io/ClassRewriter.java
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+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 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 proguard.classfile.io.ProgramClassWriter;
+
+import java.io.*;
+
+
+/**
+ * This DataEntryReader reads class entries and writes their corresponding
+ * versions from the ClassPool to a given DataEntryWriter.
+ *
+ * @author Eric Lafortune
+ */
+public class ClassRewriter implements DataEntryReader
+{
+    private final ClassPool       classPool;
+    private final DataEntryWriter dataEntryWriter;
+
+
+    public ClassRewriter(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.
+        ProgramClass programClass = (ProgramClass)classPool.getClass(className);
+        if (programClass != null)
+        {
+            // Rename the data entry if necessary.
+            String newClassName = programClass.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);
+
+                new ProgramClassWriter(classOutputStream).visitProgramClass(programClass);
+
+                classOutputStream.flush();
+            }
+        }
+    }
+}