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Java > Open Source Codes > org > mr > core > util > byteable > ByteableMapEntry


1 /*
2  * Copyright 2002 by
3  * <a HREF="http://www.coridan.com">Coridan</a>
4  * <a HREF="mailto: support@coridan.com ">support@coridan.com</a>
5  *
6  * The contents of this file are subject to the Mozilla Public License Version
7  * 1.1 (the "License"); you may not use this file except in compliance with the
8  * License. You may obtain a copy of the License at
9  * http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is "MantaRay" (TM).
17  *
18  * The Initial Developer of the Original Code is Amir.
19  * Portions created by the Initial Developer are Copyright (C) 2006
20  * Coridan Inc. All Rights Reserved.
21  *
22  * Contributor(s): all the names of the contributors are added in the source
23  * code where applicable.
24  *
25  * Alternatively, the contents of this file may be used under the terms of the
26  * LGPL license (the "GNU LESSER GENERAL PUBLIC LICENSE"), in which case the
27  * provisions of LGPL are applicable instead of those above. If you wish to
28  * allow use of your version of this file only under the terms of the LGPL
29  * License and not to allow others to use your version of this file under
30  * the MPL, indicate your decision by deleting the provisions above and
31  * replace them with the notice and other provisions required by the LGPL.
32  * If you do not delete the provisions above, a recipient may use your version
33  * of this file under either the MPL or the GNU LESSER GENERAL PUBLIC LICENSE.
34  
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Lesser General Public License as published by the Free Software Foundation;
39  * either version 2.1 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
43  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
44  * License for more details.
45  */

46 /*
47  * Created on 15/03/2004
48  *
49  * Manta LTD
50  */

51 package org.mr.core.util.byteable;
52
53 import java.io.IOException JavaDoc;
54
55 /**
56  * ByteableMapEntry knows the objects the he holds and how to serialize them
57  * @author Amir
58  *
59  */

60 public class ByteableMapEntry implements Byteable {
61     
62     public static final byte STRING_STRING =0;
63     public static final byte BYTEABLE_BYTEABLE =1;
64     public static final byte STRING_BYTEABLE =2;
65     
66     byte type;
67     String JavaDoc sKey;
68     String JavaDoc sValue;
69     
70     Byteable bKey;
71     Byteable bValue;
72     
73     public ByteableMapEntry(String JavaDoc key, String JavaDoc value) {
74         sKey = key;
75         sValue = value;
76         type = STRING_STRING;
77     }
78     
79     
80     public ByteableMapEntry(Byteable key, Byteable value) {
81         bKey =key;
82         bValue = value;
83         type = BYTEABLE_BYTEABLE;
84         
85     }
86     
87     public ByteableMapEntry(String JavaDoc key, Byteable value) {
88         sKey = key;
89         bValue = value;
90         type =STRING_BYTEABLE;
91     }
92     
93     static final String JavaDoc name = "BMapEnt";
94     /* (non-Javadoc)
95      * @see org.mr.core.util.byteable.Byteable#getByteableName()
96      */

97     public String JavaDoc getByteableName() {
98         
99         return name;
100     }
101     /* (non-Javadoc)
102      * @see org.mr.core.util.byteable.Byteable#toBytes(org.mr.core.util.byteable.ByteableOutputStream)
103      */

104     public void toBytes(ByteableOutputStream out) throws IOException JavaDoc {
105         out.writeByte(type);
106         switch(type){
107             case(STRING_STRING):
108                 out.writeUTF(sKey);
109                 out.writeUTF(sValue);
110                 break;
111             case(BYTEABLE_BYTEABLE):
112                 out.writeByteable(bKey);
113                 out.writeByteable(bValue);
114                 break;
115             case(STRING_BYTEABLE):
116                 out.writeUTF(sKey);
117                 out.writeByteable(bValue);
118                 break;
119         }
120         
121     }
122     /* (non-Javadoc)
123      * @see org.mr.core.util.byteable.Byteable#createInstance(org.mr.core.util.byteable.ByteableInputStream)
124      */

125     public Byteable createInstance(ByteableInputStream in) throws IOException JavaDoc {
126         
127         ByteableMapEntry result = null;
128         byte type = in.readByte();
129         switch(type){
130             case(STRING_STRING):
131                 result = new ByteableMapEntry(in.readUTF() , in.readUTF());
132                 break;
133             case(BYTEABLE_BYTEABLE):
134                 result = new ByteableMapEntry(in.readByteable() , in.readByteable());
135                 break;
136             case(STRING_BYTEABLE):
137                 result = new ByteableMapEntry(in.readUTF() , in.readByteable());
138                 break;
139         }
140         return result;
141     }
142     
143     /* (non-Javadoc)
144      * @see org.mr.core.util.byteable.Byteable#registerToByteableRegistry()
145      */

146     public void registerToByteableRegistry() {
147         ByteableRegistry.registerByteableFactory(getByteableName() , this);
148     }
149     public static void register(){
150         ByteableMapEntry instance = new ByteableMapEntry("" , "");
151         instance.registerToByteableRegistry();
152     }
153     
154     
155     public Object JavaDoc getValue(){
156         if(sValue != null)
157             return sValue;
158         else
159             return bValue;
160     }
161     
162     public Object JavaDoc getKey() {
163         if(sKey != null)
164             return sKey;
165         return bKey;
166     }
167
168
169
170     /**
171      * @return Returns the type.
172      */

173     public byte getType() {
174         return type;
175     }
176     
177     public String JavaDoc toString(){
178         String JavaDoc result = "Map Entry Key: ";
179          if(sKey != null)
180             result += sKey;
181         if(bKey != null)
182             result +=String.valueOf(bKey);
183         result += " Value: ";
184         if(sValue != null)
185             result += sValue;
186         if(bValue != null)
187             result +=String.valueOf(bValue);
188         return result;
189     }
190
191
192 }
193
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