Coverage Report - org.apache.turbine.util.ObjectUtils
 
Classes in this File Line Coverage Branch Coverage Complexity
ObjectUtils
0%
0/44
0%
0/14
5,5
 
 1  
 package org.apache.turbine.util;
 2  
 
 3  
 
 4  
 /*
 5  
  * Licensed to the Apache Software Foundation (ASF) under one
 6  
  * or more contributor license agreements.  See the NOTICE file
 7  
  * distributed with this work for additional information
 8  
  * regarding copyright ownership.  The ASF licenses this file
 9  
  * to you under the Apache License, Version 2.0 (the
 10  
  * "License"); you may not use this file except in compliance
 11  
  * with the License.  You may obtain a copy of the License at
 12  
  *
 13  
  *   http://www.apache.org/licenses/LICENSE-2.0
 14  
  *
 15  
  * Unless required by applicable law or agreed to in writing,
 16  
  * software distributed under the License is distributed on an
 17  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 18  
  * KIND, either express or implied.  See the License for the
 19  
  * specific language governing permissions and limitations
 20  
  * under the License.
 21  
  */
 22  
 
 23  
 
 24  
 import java.io.BufferedInputStream;
 25  
 import java.io.BufferedOutputStream;
 26  
 import java.io.ByteArrayInputStream;
 27  
 import java.io.ByteArrayOutputStream;
 28  
 import java.io.IOException;
 29  
 import java.io.ObjectInputStream;
 30  
 import java.io.ObjectOutputStream;
 31  
 import java.io.Serializable;
 32  
 import java.util.Hashtable;
 33  
 import java.util.Map;
 34  
 
 35  
 /**
 36  
  * This is where common Object manipulation routines should go.
 37  
  *
 38  
  * @author <a href="mailto:nissim@nksystems.com">Nissim Karpenstein</a>
 39  
  * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
 40  
  * @version $Id: ObjectUtils.java 1073174 2011-02-21 22:18:45Z tv $
 41  
  */
 42  0
 public abstract class ObjectUtils
 43  
 {
 44  
     /**
 45  
      * Converts a hashtable to a byte array for storage/serialization.
 46  
      *
 47  
      * @param hash The Hashtable to convert.
 48  
      *
 49  
      * @return A byte[] with the converted Hashtable.
 50  
      *
 51  
      * @exception Exception A generic exception.
 52  
      */
 53  
     public static byte[] serializeHashtable(Hashtable<String, Object> hash)
 54  
         throws Exception
 55  
     {
 56  0
         Hashtable<String, Serializable> saveData =
 57  
             new Hashtable<String, Serializable>(hash.size());
 58  0
         String key = null;
 59  0
         Object value = null;
 60  0
         byte[] byteArray = null;
 61  
 
 62  0
         for (Map.Entry<String, Object> entry : hash.entrySet())
 63  
         {
 64  0
             key = entry.getKey();
 65  0
             value = entry.getValue();
 66  0
             if (value instanceof Serializable)
 67  
             {
 68  0
                 saveData.put (key, (Serializable)value);
 69  
             }
 70  
         }
 71  
 
 72  0
         ByteArrayOutputStream baos = null;
 73  0
         BufferedOutputStream bos = null;
 74  0
         ObjectOutputStream out = null;
 75  
         try
 76  
         {
 77  
             // These objects are closed in the finally.
 78  0
             baos = new ByteArrayOutputStream();
 79  0
             bos  = new BufferedOutputStream(baos);
 80  0
             out  = new ObjectOutputStream(bos);
 81  
 
 82  0
             out.writeObject(saveData);
 83  0
             out.flush();
 84  0
             bos.flush();
 85  
 
 86  0
             byteArray = baos.toByteArray();
 87  
         }
 88  
         finally
 89  
         {
 90  0
             if (out != null)
 91  
             {
 92  0
                 out.close();
 93  
             }
 94  0
             if (bos != null)
 95  
             {
 96  0
                 bos.close();
 97  
             }
 98  0
             if (baos != null)
 99  
             {
 100  0
                 baos.close();
 101  
             }
 102  
         }
 103  0
         return byteArray;
 104  
     }
 105  
 
 106  
     /**
 107  
      * Deserializes a single object from an array of bytes.
 108  
      *
 109  
      * @param objectData The serialized object.
 110  
      *
 111  
      * @return The deserialized object, or <code>null</code> on failure.
 112  
      */
 113  
     public static Object deserialize(byte[] objectData)
 114  
     {
 115  0
         Object object = null;
 116  
 
 117  0
         if (objectData != null)
 118  
         {
 119  
             // These streams are closed in finally.
 120  0
             ObjectInputStream in = null;
 121  0
             ByteArrayInputStream bin = new ByteArrayInputStream(objectData);
 122  0
             BufferedInputStream bufin = new BufferedInputStream(bin);
 123  
 
 124  
             try
 125  
             {
 126  0
                 in = new ObjectInputStream(bufin);
 127  
 
 128  
                 // If objectData has not been initialized, an
 129  
                 // exception will occur.
 130  0
                 object = in.readObject();
 131  
             }
 132  0
             catch (Exception e)
 133  
             {
 134  
                 // ignore
 135  
             }
 136  
             finally
 137  
             {
 138  0
                 try
 139  
                 {
 140  0
                     if (in != null)
 141  
                     {
 142  0
                         in.close();
 143  
                     }
 144  
 
 145  0
                     bufin.close();
 146  0
                     bin.close();
 147  
                 }
 148  0
                 catch (IOException e)
 149  
                 {
 150  
                     // ignore
 151  0
                 }
 152  0
             }
 153  
         }
 154  0
         return object;
 155  
     }
 156  
 }