1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.transport.socket;
21
22 import org.apache.mina.core.session.AbstractIoSessionConfig;
23 import org.apache.mina.core.session.IoSessionConfig;
24
25 /**
26 * TODO Add documentation
27 *
28 * @author The Apache MINA Project (dev@mina.apache.org)
29 */
30 public abstract class AbstractDatagramSessionConfig extends
31 AbstractIoSessionConfig implements DatagramSessionConfig {
32
33 protected AbstractDatagramSessionConfig() {
34 // Do nothing
35 }
36
37 @Override
38 protected void doSetAll(IoSessionConfig config) {
39 if (!(config instanceof DatagramSessionConfig)) {
40 return;
41 }
42
43 if (config instanceof AbstractDatagramSessionConfig) {
44 // Minimize unnecessary system calls by checking all 'propertyChanged' properties.
45 AbstractDatagramSessionConfig cfg = (AbstractDatagramSessionConfig) config;
46 if (cfg.isBroadcastChanged()) {
47 setBroadcast(cfg.isBroadcast());
48 }
49 if (cfg.isReceiveBufferSizeChanged()) {
50 setReceiveBufferSize(cfg.getReceiveBufferSize());
51 }
52 if (cfg.isReuseAddressChanged()) {
53 setReuseAddress(cfg.isReuseAddress());
54 }
55 if (cfg.isSendBufferSizeChanged()) {
56 setSendBufferSize(cfg.getSendBufferSize());
57 }
58 if (cfg.isTrafficClassChanged() && getTrafficClass() != cfg.getTrafficClass()) {
59 setTrafficClass(cfg.getTrafficClass());
60 }
61 } else {
62 DatagramSessionConfig cfg = (DatagramSessionConfig) config;
63 setBroadcast(cfg.isBroadcast());
64 setReceiveBufferSize(cfg.getReceiveBufferSize());
65 setReuseAddress(cfg.isReuseAddress());
66 setSendBufferSize(cfg.getSendBufferSize());
67 if (getTrafficClass() != cfg.getTrafficClass()) {
68 setTrafficClass(cfg.getTrafficClass());
69 }
70 }
71 }
72
73 /**
74 * Returns <tt>true</tt> if and only if the <tt>broadcast</tt> property
75 * has been changed by its setter method. The system call related with
76 * the property is made only when this method returns <tt>true</tt>. By
77 * default, this method always returns <tt>true</tt> to simplify implementation
78 * of subclasses, but overriding the default behavior is always encouraged.
79 */
80 protected boolean isBroadcastChanged() {
81 return true;
82 }
83
84 /**
85 * Returns <tt>true</tt> if and only if the <tt>receiveBufferSize</tt> property
86 * has been changed by its setter method. The system call related with
87 * the property is made only when this method returns <tt>true</tt>. By
88 * default, this method always returns <tt>true</tt> to simplify implementation
89 * of subclasses, but overriding the default behavior is always encouraged.
90 */
91 protected boolean isReceiveBufferSizeChanged() {
92 return true;
93 }
94
95 /**
96 * Returns <tt>true</tt> if and only if the <tt>reuseAddress</tt> property
97 * has been changed by its setter method. The system call related with
98 * the property is made only when this method returns <tt>true</tt>. By
99 * default, this method always returns <tt>true</tt> to simplify implementation
100 * of subclasses, but overriding the default behavior is always encouraged.
101 */
102 protected boolean isReuseAddressChanged() {
103 return true;
104 }
105
106 /**
107 * Returns <tt>true</tt> if and only if the <tt>sendBufferSize</tt> property
108 * has been changed by its setter method. The system call related with
109 * the property is made only when this method returns <tt>true</tt>. By
110 * default, this method always returns <tt>true</tt> to simplify implementation
111 * of subclasses, but overriding the default behavior is always encouraged.
112 */
113 protected boolean isSendBufferSizeChanged() {
114 return true;
115 }
116
117 /**
118 * Returns <tt>true</tt> if and only if the <tt>trafficClass</tt> property
119 * has been changed by its setter method. The system call related with
120 * the property is made only when this method returns <tt>true</tt>. By
121 * default, this method always returns <tt>true</tt> to simplify implementation
122 * of subclasses, but overriding the default behavior is always encouraged.
123 */
124 protected boolean isTrafficClassChanged() {
125 return true;
126 }
127 }