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ClassFileBasedByteCodeProvider.java

/*******************************************************************************
 * Copyright (c) 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.aspectj.ajdt.internal.compiler;

import java.util.Iterator;

import org.aspectj.org.eclipse.jdt.internal.compiler.ClassFile;
import org.aspectj.org.eclipse.jdt.internal.compiler.CompilationResult;
import org.aspectj.weaver.bcel.UnwovenClassFile;
import org.aspectj.weaver.bcel.UnwovenClassFileWithThirdPartyManagedBytecode;

/**
 * @author colyer
 *
 *    Adaptor for ClassFiles that lets them act as the bytecode repository
 *    for UnwovenClassFiles (asking a ClassFile for its bytes causes a 
 *    copy to be made).
 */
00027 public class ClassFileBasedByteCodeProvider 
         implements UnwovenClassFileWithThirdPartyManagedBytecode.IByteCodeProvider{
      
      private ClassFile cf;
            
      public ClassFileBasedByteCodeProvider(ClassFile cf) {
            this.cf = cf;
      }
            
      public byte[] getBytes() {
            return cf.getBytes();
      }
            
      public static UnwovenClassFile[] unwovenClassFilesFor(CompilationResult result, 
                                                                        IOutputClassFileNameProvider nameProvider) {
            ClassFile[] cfs = result.getClassFiles();
            UnwovenClassFile[] ret = new UnwovenClassFile[result.compiledTypes.size()];
            int i=0;
            for (Iterator iterator = result.compiledTypes.keySet().iterator(); iterator.hasNext();) {
                  char[] className = (char[])iterator.next();
                  ClassFile cf = (ClassFile)result.compiledTypes.get(className);
                  // OPTIMIZE use char[] for classname
                  ClassFileBasedByteCodeProvider p = new ClassFileBasedByteCodeProvider(cf);
                  String fileName = nameProvider.getOutputClassFileName(cf.fileName(), result);
                  ret[i++] = new UnwovenClassFileWithThirdPartyManagedBytecode(fileName,new String(className).replace('/','.'),p);
            }
            return ret;
      }
            
}

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