1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 package org.apache.directory.mavibot.btree.serializer;
21
22
23 import java.io.IOException;
24 import java.nio.ByteBuffer;
25
26 import org.apache.directory.mavibot.btree.comparator.CharComparator;
27 import org.apache.directory.mavibot.btree.exception.SerializerCreationException;
28
29
30
31
32
33
34
35 public class CharSerializer extends AbstractElementSerializer<Character>
36 {
37
38
39
40 public CharSerializer()
41 {
42 super( new CharComparator() );
43 }
44
45
46
47
48
49 public byte[] serialize( Character element )
50 {
51 byte[] bytes = new byte[2];
52
53 return serialize( bytes, 0, element );
54 }
55
56
57
58
59
60
61
62
63 public static byte[] serialize( char value )
64 {
65 byte[] bytes = new byte[2];
66
67 return serialize( bytes, 0, value );
68 }
69
70
71
72
73
74
75
76
77
78
79 public static byte[] serialize( byte[] buffer, int start, char value )
80 {
81 buffer[start] = ( byte ) ( value >>> 8 );
82 buffer[start + 1] = ( byte ) ( value );
83
84 return buffer;
85 }
86
87
88
89
90
91
92
93 public static Character deserialize( byte[] in )
94 {
95 return deserialize( in, 0 );
96 }
97
98
99
100
101
102
103
104
105 public static Character deserialize( byte[] in, int start )
106 {
107 if ( ( in == null ) || ( in.length < 2 + start ) )
108 {
109 throw new SerializerCreationException( "Cannot extract a Character from a buffer with not enough bytes" );
110 }
111
112 return Character.valueOf( ( char ) ( ( in[start] << 8 ) +
113 ( in[start + 1] & 0xFF ) ) );
114 }
115
116
117
118
119
120
121
122 public Character fromBytes( byte[] in )
123 {
124 return deserialize( in, 0 );
125 }
126
127
128
129
130
131
132
133
134 public Character fromBytes( byte[] in, int start )
135 {
136 if ( ( in == null ) || ( in.length < 2 + start ) )
137 {
138 throw new SerializerCreationException( "Cannot extract a Character from a buffer with not enough bytes" );
139 }
140
141 return Character.valueOf( ( char ) ( ( in[start] << 8 ) +
142 ( in[start + 1] & 0xFF ) ) );
143 }
144
145
146
147
148
149 public Character deserialize( ByteBuffer buffer ) throws IOException
150 {
151 return buffer.getChar();
152 }
153
154
155
156
157
158 public Character deserialize( BufferHandler bufferHandler ) throws IOException
159 {
160 byte[] in = bufferHandler.read( 2 );
161
162 return deserialize( in );
163 }
164 }