blob: aa6ab50072c0bb66b3f818cc37f323d3e9648ae1 (
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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/* 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.messaging.util;
import org.apache.qpid.messaging.ConnectionException;
import org.apache.qpid.messaging.Message;
import org.apache.qpid.messaging.MessagingException;
import org.apache.qpid.messaging.ReceiverException;
import org.apache.qpid.messaging.Session;
import org.apache.qpid.messaging.SessionException;
import org.apache.qpid.messaging.internal.ReceiverInternal;
import org.apache.qpid.messaging.internal.SessionInternal;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class AbstractReceiverDecorator implements ReceiverInternal
{
private Logger _logger = LoggerFactory.getLogger(getClass());
public enum ReceiverState {OPENED, CLOSED, ERROR};
protected ReceiverInternal _delegate;
protected SessionInternal _ssn;
protected final Object _connectionLock; // global per connection lock
public AbstractReceiverDecorator(SessionInternal ssn, ReceiverInternal delegate)
{
_ssn = ssn;
_delegate = delegate;
_connectionLock = ssn.getConnectionInternal().getConnectionLock();
}
@Override
public Message get(long timeout) throws MessagingException
{
checkPreConditions();
return _delegate.get(timeout);
}
@Override
public Message fetch(long timeout) throws MessagingException
{
checkPreConditions();
return _delegate.fetch(timeout);
}
@Override
public void setCapacity(int capacity) throws MessagingException
{
checkPreConditions();
_delegate.setCapacity(capacity);
}
@Override
public int getCapacity() throws MessagingException
{
checkPreConditions();
return _delegate.getCapacity();
}
@Override
public int getAvailable() throws MessagingException
{
checkPreConditions();
return _delegate.getAvailable();
}
@Override
public int getUnsettled() throws MessagingException
{
checkPreConditions();
return _delegate.getUnsettled();
}
@Override
public void close() throws MessagingException
{
synchronized (_connectionLock)
{
_delegate.close();
_ssn.unregisterReceiver(this);
}
}
@Override
public boolean isClosed()
{
return _delegate.isClosed();
}
@Override
public String getName() throws MessagingException
{
checkPreConditions();
return _delegate.getName();
}
@Override
public Session getSession() throws MessagingException
{
checkPreConditions();
_ssn.checkError();
return _ssn;
}
protected abstract void checkPreConditions() throws ReceiverException;
}
|
