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