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.tomcat.cluster;
018
019 import java.util.Map;
020
021 import org.apache.catalina.tribes.ChannelInterceptor;
022 import org.apache.catalina.tribes.membership.StaticMember;
023 import org.apache.commons.logging.Log;
024 import org.apache.commons.logging.LogFactory;
025 import org.apache.geronimo.gbean.GBeanInfo;
026 import org.apache.geronimo.gbean.GBeanInfoBuilder;
027 import org.apache.geronimo.gbean.GBeanLifecycle;
028 import org.apache.geronimo.tomcat.BaseGBean;
029 import org.apache.geronimo.tomcat.ObjectRetriever;
030
031 /**
032 * @version $Rev: 706640 $ $Date: 2008-10-21 14:44:05 +0000 (Tue, 21 Oct 2008) $
033 */
034 public class StaticMemberGBean extends BaseGBean implements
035 GBeanLifecycle, ObjectRetriever {
036
037 private static final Log log = LogFactory.getLog(StaticMemberGBean.class);
038
039 public static final String J2EE_TYPE = "StaticMember";
040
041 private final StaticMember staticMember;
042 private final StaticMemberGBean nextStaticMember;
043
044 public StaticMemberGBean() {
045 staticMember=null;
046 nextStaticMember=null;
047 }
048
049 public StaticMemberGBean(String className, Map initParams, StaticMemberGBean nextStaticMember) throws Exception {
050
051 super(); // TODO: make it an attribute
052
053 // Validate
054 if (className == null) {
055 throw new IllegalArgumentException("Must have a 'className' attribute.");
056 }
057
058 if (nextStaticMember != null) {
059 if (!(nextStaticMember.getInternalObject() instanceof StaticMember)){
060 throw new IllegalArgumentException("nextStaticMember is not of type StaticMember.");
061 }
062 this.nextStaticMember = nextStaticMember;
063 } else {
064 this.nextStaticMember = null;
065 }
066
067 // Create the StaticMember object
068 staticMember = (StaticMember) Class.forName(className).newInstance();
069
070 // Set the parameters
071 setParameters(staticMember, initParams);
072
073 }
074
075 public Object getInternalObject() {
076 return staticMember;
077 }
078
079 public Object getNextStaticMember() {
080 return nextStaticMember;
081 }
082
083 public void doFail() {
084 log.warn("Failed");
085 }
086
087 public void doStart() throws Exception {
088 log.debug("Started StaticMember gbean.");
089 }
090
091 public void doStop() throws Exception {
092 log.debug("Stopped StaticMember gbean.");
093 }
094
095 public static final GBeanInfo GBEAN_INFO;
096
097 static {
098 GBeanInfoBuilder infoFactory = GBeanInfoBuilder.createStatic("StaticMember", StaticMemberGBean.class, J2EE_TYPE);
099 infoFactory.addAttribute("className", String.class, true);
100 infoFactory.addAttribute("initParams", Map.class, true);
101 infoFactory.addReference("NextStaticMember", StaticMemberGBean.class, J2EE_TYPE);
102 infoFactory.addOperation("getInternalObject", "Object");
103 infoFactory.addOperation("getNextStaticMember", "Object");
104 infoFactory.setConstructor(new String[] { "className", "initParams", "NextStaticMember"});
105 GBEAN_INFO = infoFactory.getBeanInfo();
106 }
107
108 public static GBeanInfo getGBeanInfo() {
109 return GBEAN_INFO;
110 }
111 }