Coverage report

  %line %branch
org.apache.jetspeed.deployment.impl.JarExpander
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 1   
 /*
 2   
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3   
  * contributor license agreements.  See the NOTICE file distributed with
 4   
  * this work for additional information regarding copyright ownership.
 5   
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6   
  * (the "License"); you may not use this file except in compliance with
 7   
  * the License.  You may obtain a copy of the License at
 8   
  *
 9   
  *      http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS,
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  * See the License for the specific language governing permissions and
 15   
  * limitations under the License.
 16   
  */
 17   
 package org.apache.jetspeed.deployment.impl;
 18   
 
 19   
 import org.apache.jetspeed.util.DirectoryHelper;
 20   
 
 21   
 import java.io.File;
 22   
 import java.io.FileOutputStream;
 23   
 import java.io.IOException;
 24   
 import java.io.InputStream;
 25   
 import java.io.OutputStream;
 26   
 
 27   
 import java.util.Enumeration;
 28   
 import java.util.jar.JarEntry;
 29   
 import java.util.jar.JarFile;
 30   
 
 31   
 /**
 32   
  * JarExpander
 33   
  *
 34   
  * @author <a href="mailto:ate@douma.nu">Ate Douma </a>
 35   
  * @version $Id: JarExpander.java 516448 2007-03-09 16:25:47Z ate $
 36   
  */
 37  0 
 public class JarExpander
 38   
 {
 39   
     public static void expand(File srcFile, File targetDir) throws IOException
 40   
     {
 41  0 
         if (targetDir.exists())
 42   
         {
 43  0 
             DirectoryHelper cleanup = new DirectoryHelper(targetDir);
 44  0 
             cleanup.remove();
 45  0 
             cleanup.close();
 46   
         }
 47   
 
 48  0 
         targetDir.mkdirs();
 49  0 
         JarFile jarFile = new JarFile(srcFile);
 50   
 
 51   
         try
 52   
         {
 53  0 
             Enumeration entries = jarFile.entries();
 54   
 
 55  0 
             InputStream is = null;
 56  0 
             OutputStream os = null;
 57   
 
 58  0 
             byte[] buf = new byte[1024];
 59   
             int len;
 60   
 
 61  0 
             while (entries.hasMoreElements())
 62   
             {
 63  0 
                 JarEntry jarEntry = (JarEntry) entries.nextElement();
 64  0 
                 String name = jarEntry.getName();
 65  0 
                 File entryFile = new File(targetDir, name);
 66   
 
 67  0 
                 if (jarEntry.isDirectory())
 68   
                 {
 69  0 
                     entryFile.mkdir();
 70   
                 }
 71   
                 else
 72   
                 {
 73  0 
                     if (!entryFile.getParentFile().exists())
 74   
                     {
 75  0 
                         entryFile.getParentFile().mkdirs();
 76   
                     }
 77   
 
 78  0 
                     entryFile.createNewFile();
 79   
 
 80   
                     try
 81   
                     {
 82  0 
                         is = jarFile.getInputStream(jarEntry);
 83  0 
                         os = new FileOutputStream(entryFile);
 84   
 
 85  0 
                         while ((len = is.read(buf)) > 0)
 86   
                         {
 87  0 
                             os.write(buf, 0, len);
 88   
                         }
 89   
                     }
 90   
                     finally
 91   
                     {
 92  0 
                         if (is != null)
 93   
                         {
 94  0 
                             is.close();
 95   
                         }
 96   
 
 97  0 
                         if (os != null)
 98   
                         {
 99  0 
                             os.close();
 100   
                         }
 101   
                     }
 102   
                 }
 103  0 
             }
 104   
         }
 105   
         finally
 106   
         {
 107  0 
             if (jarFile != null)
 108   
             {
 109  0 
                 jarFile.close();
 110   
             }
 111   
         }
 112  0 
     }
 113   
 }

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