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 package org.apache.geronimo.clustering.wadi;
018
019 import java.net.URI;
020
021 import org.apache.commons.logging.Log;
022 import org.apache.commons.logging.LogFactory;
023 import org.apache.geronimo.clustering.Node;
024 import org.apache.geronimo.gbean.GBeanInfo;
025 import org.apache.geronimo.gbean.GBeanInfoBuilder;
026 import org.apache.geronimo.gbean.GBeanLifecycle;
027 import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
028 import org.codehaus.wadi.group.Dispatcher;
029 import org.codehaus.wadi.group.MessageExchangeException;
030 import org.codehaus.wadi.tribes.TribesDispatcher;
031 import org.codehaus.wadi.web.impl.URIEndPoint;
032
033 /**
034 *
035 * @version $Rev$ $Date$
036 */
037 public class TribesDispatcherHolder implements GBeanLifecycle, DispatcherHolder {
038 private static final Log log = LogFactory.getLog(TribesDispatcherHolder.class);
039
040 private final URI endPointURI;
041 private final String clusterName;
042 private final long inactiveTime;
043 private final Node node;
044
045 private TribesDispatcher dispatcher;
046
047
048 public TribesDispatcherHolder(URI endPointURI, String clusterName, long inactiveTime, Node node) {
049 if (null == endPointURI) {
050 throw new IllegalArgumentException("endPointURI is required");
051 } else if (null == clusterName) {
052 throw new IllegalArgumentException("clusterName is required");
053 } else if (0 > inactiveTime) {
054 throw new IllegalArgumentException("inactiveTime must be > 0");
055 } else if (null == node) {
056 throw new IllegalArgumentException("node is required");
057 }
058 this.endPointURI = endPointURI;
059 this.clusterName = clusterName;
060 this.inactiveTime = inactiveTime;
061 this.node = node;
062 }
063
064 public void doStart() throws Exception {
065 dispatcher = new TribesDispatcher(clusterName, node.getName(), new URIEndPoint(endPointURI), inactiveTime, null);
066 dispatcher.start();
067 }
068
069 public void doStop() throws Exception {
070 dispatcher.stop();
071 }
072
073 public void doFail() {
074 try {
075 dispatcher.stop();
076 } catch (MessageExchangeException e) {
077 log.error(e);
078 }
079 }
080
081 public Dispatcher getDispatcher() {
082 return dispatcher;
083 }
084
085 public Node getNode() {
086 return node;
087 }
088
089
090 public static final GBeanInfo GBEAN_INFO;
091
092 public static final String GBEAN_ATTR_END_POINT_URI = "endPointURI";
093 public static final String GBEAN_ATTR_CLUSTER_NAME = "clusterName";
094 public static final String GBEAN_ATTR_CLUSTER_URI = "clusterUri";
095 public static final String GBEAN_ATTR_INACTIVE_TIME = "inactiveTime";
096
097 public static final String GBEAN_REF_NODE = "Node";
098
099 static {
100 GBeanInfoBuilder infoBuilder = GBeanInfoBuilder.createStatic(TribesDispatcherHolder.class,
101 NameFactory.GERONIMO_SERVICE);
102
103 infoBuilder.addAttribute(GBEAN_ATTR_END_POINT_URI, URI.class, true);
104 infoBuilder.addAttribute(GBEAN_ATTR_CLUSTER_NAME, String.class, true);
105 infoBuilder.addAttribute(GBEAN_ATTR_INACTIVE_TIME, long.class, true);
106
107 infoBuilder.addReference(GBEAN_REF_NODE, Node.class, NameFactory.GERONIMO_SERVICE);
108
109 infoBuilder.addInterface(DispatcherHolder.class);
110
111 infoBuilder.setConstructor(new String[] {
112 GBEAN_ATTR_END_POINT_URI,
113 GBEAN_ATTR_CLUSTER_NAME,
114 GBEAN_ATTR_INACTIVE_TIME,
115 GBEAN_REF_NODE });
116
117 GBEAN_INFO = infoBuilder.getBeanInfo();
118 }
119
120 public static GBeanInfo getGBeanInfo() {
121 return GBEAN_INFO;
122 }
123 }