Package erjang.beam

Source Code of erjang.beam.JarClassRepo

/**
* This file is part of Erjang - A JVM-based Erlang VM
*
* Copyright (c) 2009 by Trifork
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/


package erjang.beam;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.jar.JarOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
*
*/
public class JarClassRepo implements ClassRepo {
 
  private JarOutputStream jo;

  public JarClassRepo(File jarFile) throws IOException {
    FileOutputStream fo = new FileOutputStream(jarFile);
    jo = new JarOutputStream(fo);
    jo.setLevel(ZipOutputStream.STORED);
  }
 
  /* (non-Javadoc)
   * @see erjang.beam.ClassRepo#close()
   */
  @Override
  public void close() throws IOException {
    jo.close();
  }
 
  /* (non-Javadoc)
   * @see erjang.beam.ClassRepo#store(java.lang.String, byte[])
   */
  @Override
  public void store(String internalName, byte[] data) throws IOException {
    String out = internalName + ".class";
   
    //System.out.println("# "+out);
   
    ZipEntry ze = new ZipEntry(out);
    jo.putNextEntry(ze);
    jo.write(data);
    jo.closeEntry();
  }

}
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