Coverage Report - org.apache.turbine.util.ObjectUtils
 
Classes in this File Line Coverage Branch Coverage Complexity
ObjectUtils
48%
16/33
41%
5/12
5,5
 
 1  
 package org.apache.turbine.util;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.io.ByteArrayInputStream;
 23  
 import java.io.ByteArrayOutputStream;
 24  
 import java.io.IOException;
 25  
 import java.io.ObjectInputStream;
 26  
 import java.io.ObjectOutputStream;
 27  
 import java.io.Serializable;
 28  
 import java.util.Map;
 29  
 
 30  
 /**
 31  
  * This is where common Object manipulation routines should go.
 32  
  *
 33  
  * @author <a href="mailto:nissim@nksystems.com">Nissim Karpenstein</a>
 34  
  * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
 35  
  * @version $Id: ObjectUtils.java 1812628 2017-10-19 12:34:25Z gk $
 36  
  */
 37  0
 public abstract class ObjectUtils
 38  
 {
 39  
     /**
 40  
      * Converts a map to a byte array for storage/serialization.
 41  
      *
 42  
      * @param map The Map to convert.
 43  
      *
 44  
      * @return A byte[] with the converted Map.
 45  
      *
 46  
      * @throws Exception A generic exception.
 47  
      */
 48  
         public static byte[] serializeMap(Map<String, Object> map)
 49  
             throws Exception
 50  
     {
 51  1
         byte[] byteArray = null;
 52  
 
 53  1
         for (Object value : map.values())
 54  
         {
 55  1
             if (! (value instanceof Serializable))
 56  
             {
 57  0
                 throw new Exception("Could not serialize, value is not serializable:" + value);
 58  
             }
 59  1
         }
 60  
 
 61  1
         ByteArrayOutputStream baos = null;
 62  1
         ObjectOutputStream out = null;
 63  
         try
 64  
         {
 65  
             // These objects are closed in the finally.
 66  1
             baos = new ByteArrayOutputStream(1024);
 67  1
             out  = new ObjectOutputStream(baos);
 68  
 
 69  1
             out.writeObject(map);
 70  1
             out.flush();
 71  
 
 72  1
             byteArray = baos.toByteArray();
 73  
         }
 74  
         finally
 75  
         {
 76  1
             if (out != null)
 77  
             {
 78  1
                 out.close();
 79  
             }
 80  1
             if (baos != null)
 81  
             {
 82  1
                 baos.close();
 83  
             }
 84  
         }
 85  
 
 86  1
         return byteArray;
 87  
     }
 88  
 
 89  
     /**
 90  
      * Deserializes a single object from an array of bytes.
 91  
      *
 92  
      * @param objectData The serialized object.
 93  
      *
 94  
      * @return The deserialized object, or <code>null</code> on failure.
 95  
      */
 96  
     @SuppressWarnings("unchecked")
 97  
     public static <T> T deserialize(byte[] objectData)
 98  
     {
 99  0
         T object = null;
 100  
 
 101  0
         if (objectData != null)
 102  
         {
 103  
             // These streams are closed in finally.
 104  0
             ObjectInputStream in = null;
 105  0
             ByteArrayInputStream bin = new ByteArrayInputStream(objectData);
 106  
 
 107  
             try
 108  
             {
 109  0
                 in = new ObjectInputStream(bin);
 110  
 
 111  
                 // If objectData has not been initialized, an
 112  
                 // exception will occur.
 113  0
                 object = (T)in.readObject();
 114  
             }
 115  0
             catch (Exception e)
 116  
             {
 117  
                 // ignore
 118  
             }
 119  
             finally
 120  
             {
 121  0
                 try
 122  
                 {
 123  0
                     if (in != null)
 124  
                     {
 125  0
                         in.close();
 126  
                     }
 127  0
                     bin.close();
 128  
                 }
 129  0
                 catch (IOException e)
 130  
                 {
 131  
                     // ignore
 132  0
                 }
 133  0
             }
 134  
         }
 135  0
         return object;
 136  
     }
 137  
 }