blob: 91c315149472ad320a9e473accc2a7c95798f795 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.amqp_1_0.codec;
import java.nio.ByteBuffer;
public class IntegerWriter implements ValueWriter<Integer>
{
private static final byte EIGHT_BYTE_FORMAT_CODE = (byte)0x71;
private static final byte ONE_BYTE_FORMAT_CODE = (byte) 0x54;
private ValueWriter<Integer> _delegate;
private final FixedFourWriter<Integer> _eightByteWriter = new FixedFourWriter<Integer>()
{
@Override
byte getFormatCode()
{
return EIGHT_BYTE_FORMAT_CODE;
}
@Override
int convertValueToInt(Integer value)
{
return value.intValue();
}
};
private final ValueWriter<Integer> _oneByteWriter = new FixedOneWriter<Integer>()
{
@Override protected byte getFormatCode()
{
return ONE_BYTE_FORMAT_CODE;
}
@Override protected byte convertToByte(final Integer value)
{
return value.byteValue();
}
};
public int writeToBuffer(final ByteBuffer buffer)
{
return _delegate.writeToBuffer(buffer);
}
public void setValue(final Integer i)
{
if(i >= -128 && i <= 127)
{
_delegate = _oneByteWriter;
}
else
{
_delegate = _eightByteWriter;
}
_delegate.setValue(i);
}
public boolean isComplete()
{
return _delegate.isComplete();
}
public boolean isCacheable()
{
return false;
}
private static Factory<Integer> FACTORY = new Factory<Integer>()
{
public ValueWriter<Integer> newInstance(Registry registry)
{
return new IntegerWriter();
}
};
public static void register(ValueWriter.Registry registry)
{
registry.register(Integer.class, FACTORY);
}
}
|