Source Code Cross Referenced for ReplicationTransmitter.java in  » Sevlet-Container » apache-tomcat-6.0.14 » org » apache » catalina » tribes » transport » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.catalina.tribes.transport 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         *
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:
018:        package org.apache.catalina.tribes.transport;
019:
020:        import org.apache.catalina.tribes.ChannelException;
021:        import org.apache.catalina.tribes.ChannelMessage;
022:        import org.apache.catalina.tribes.ChannelSender;
023:        import org.apache.catalina.tribes.Member;
024:        import org.apache.catalina.tribes.util.StringManager;
025:        import org.apache.catalina.tribes.transport.nio.PooledParallelSender;
026:
027:        /**
028:         * Transmit message to other cluster members
029:         * Actual senders are created based on the replicationMode
030:         * type 
031:         * 
032:         * @author Filip Hanik
033:         * @version $Revision: 532800 $ $Date: 2007-04-26 18:52:29 +0200 (jeu., 26 avr. 2007) $
034:         */
035:        public class ReplicationTransmitter implements  ChannelSender {
036:            private static org.apache.juli.logging.Log log = org.apache.juli.logging.LogFactory
037:                    .getLog(ReplicationTransmitter.class);
038:
039:            /**
040:             * The descriptive information about this implementation.
041:             */
042:            private static final String info = "ReplicationTransmitter/3.0";
043:
044:            /**
045:             * The string manager for this package.
046:             */
047:            protected StringManager sm = StringManager
048:                    .getManager(Constants.Package);
049:
050:            public ReplicationTransmitter() {
051:            }
052:
053:            private MultiPointSender transport = new PooledParallelSender();
054:
055:            /**
056:             * Return descriptive information about this implementation and the
057:             * corresponding version number, in the format
058:             * <code>&lt;description&gt;/&lt;version&gt;</code>.
059:             */
060:            public String getInfo() {
061:                return (info);
062:            }
063:
064:            public MultiPointSender getTransport() {
065:                return transport;
066:            }
067:
068:            public void setTransport(MultiPointSender transport) {
069:                this .transport = transport;
070:            }
071:
072:            // ------------------------------------------------------------- public
073:
074:            /**
075:             * Send data to one member
076:             * @see org.apache.catalina.tribes.ClusterSender#sendMessage(org.apache.catalina.tribes.ClusterMessage, org.apache.catalina.tribes.Member)
077:             */
078:            public void sendMessage(ChannelMessage message, Member[] destination)
079:                    throws ChannelException {
080:                MultiPointSender sender = getTransport();
081:                sender.sendMessage(destination, message);
082:            }
083:
084:            /**
085:             * start the sender and register transmitter mbean
086:             * 
087:             * @see org.apache.catalina.tribes.ClusterSender#start()
088:             */
089:            public void start() throws java.io.IOException {
090:                getTransport().connect();
091:            }
092:
093:            /*
094:             * stop the sender and deregister mbeans (transmitter, senders)
095:             * 
096:             * @see org.apache.catalina.tribes.ClusterSender#stop()
097:             */
098:            public synchronized void stop() {
099:                getTransport().disconnect();
100:            }
101:
102:            /**
103:             * Call transmitter to check for sender socket status
104:             * 
105:             * @see SimpleTcpCluster#backgroundProcess()
106:             */
107:
108:            public void heartbeat() {
109:                if (getTransport() != null)
110:                    getTransport().keepalive();
111:            }
112:
113:            /**
114:             * add new cluster member and create sender ( s. replicationMode) transfer
115:             * current properties to sender
116:             * 
117:             * @see org.apache.catalina.tribes.ClusterSender#add(org.apache.catalina.tribes.Member)
118:             */
119:            public synchronized void add(Member member) {
120:                getTransport().add(member);
121:            }
122:
123:            /**
124:             * remove sender from transmitter. ( deregister mbean and disconnect sender )
125:             * 
126:             * @see org.apache.catalina.tribes.ClusterSender#remove(org.apache.catalina.tribes.Member)
127:             */
128:            public synchronized void remove(Member member) {
129:                getTransport().remove(member);
130:            }
131:
132:            // ------------------------------------------------------------- protected
133:
134:        }
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