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.jetty.cluster.wadi;
018
019 import java.io.IOException;
020
021 import javax.servlet.FilterChain;
022 import javax.servlet.ServletException;
023 import javax.servlet.ServletRequest;
024 import javax.servlet.ServletResponse;
025
026 import org.apache.geronimo.clustering.ClusteredInvocation;
027 import org.apache.geronimo.clustering.ClusteredInvocationException;
028 import org.apache.geronimo.clustering.wadi.WADISessionManager;
029 import org.apache.geronimo.gbean.GBeanInfo;
030 import org.apache.geronimo.gbean.GBeanInfoBuilder;
031 import org.apache.geronimo.gbean.GBeanLifecycle;
032 import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
033 import org.apache.geronimo.jetty.HandleInterceptor;
034 import org.apache.geronimo.jetty.cluster.AbstractClusteredHandleInterceptor;
035 import org.codehaus.wadi.InvocationException;
036 import org.codehaus.wadi.InvocationProxy;
037 import org.codehaus.wadi.impl.ClusteredManager;
038 import org.codehaus.wadi.web.impl.WebInvocation;
039 import org.mortbay.http.HttpRequest;
040 import org.mortbay.http.HttpResponse;
041 import org.mortbay.jetty.servlet.ServletHttpRequest;
042 import org.mortbay.jetty.servlet.ServletHttpResponse;
043
044
045 /**
046 *
047 * @version $Rev$ $Date$
048 */
049 public class WADIClusteredHandleInterceptor extends AbstractClusteredHandleInterceptor implements GBeanLifecycle {
050 private final WADISessionManager sessionManager;
051
052 private ClusteredManager wadiManager;
053
054 public WADIClusteredHandleInterceptor(WADISessionManager sessionManager) {
055 this.sessionManager = sessionManager;
056 }
057
058 public void doStart() throws Exception {
059 wadiManager = sessionManager.getManager();
060 }
061
062 public void doStop() throws Exception {
063 wadiManager = null;
064 }
065
066 public void doFail() {
067 wadiManager = null;
068 }
069
070 protected ClusteredInvocation newClusteredInvocation(String pathInContext, String pathParams, HttpRequest request,
071 HttpResponse response, HandleInterceptor end) {
072 return new WADIWebClusteredInvocation(pathInContext, pathParams, request, response, end);
073 }
074
075 protected class WADIWebClusteredInvocation extends WebClusteredInvocation {
076
077 public WADIWebClusteredInvocation(String pathInContext, String pathParams, HttpRequest request,
078 HttpResponse response, HandleInterceptor end) {
079 super(pathInContext, pathParams, request, response, end);
080 }
081
082 public void invoke() throws ClusteredInvocationException {
083 ServletHttpRequest servletHttpRequest = (ServletHttpRequest) request.getWrapper();
084 ServletHttpResponse servletHttpResponse = (ServletHttpResponse) response.getWrapper();
085
086 WebInvocation invocation = new WebInvocation();
087 FilterChain chainAdapter = new FilterChain() {
088 public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException {
089 try {
090 invokeLocally();
091 } catch (ClusteredInvocationException e) {
092 throw (IOException) new IOException().initCause(e);
093 }
094 }
095 };
096 InvocationProxy invocationProxy = wadiManager.getInvocationProxy();
097 invocation.init(servletHttpRequest, servletHttpResponse, chainAdapter, invocationProxy);
098 try {
099 wadiManager.contextualise(invocation);
100 } catch (InvocationException e) {
101 Throwable throwable = e.getCause();
102 if (throwable instanceof IOException) {
103 throw new ClusteredInvocationException(throwable);
104 } else if (throwable instanceof ServletException) {
105 throw new ClusteredInvocationException(throwable);
106 } else {
107 throw new ClusteredInvocationException(e);
108 }
109 }
110 }
111 }
112
113 public static final GBeanInfo GBEAN_INFO;
114
115 public static final String GBEAN_REF_WADI_SESSION_MANAGER = "WADISessionManager";
116
117 static {
118 GBeanInfoBuilder infoBuilder = GBeanInfoBuilder.createStatic("WADI Clustered Handle Interceptor",
119 WADIClusteredHandleInterceptor.class, NameFactory.GERONIMO_SERVICE);
120
121 infoBuilder.addReference(GBEAN_REF_WADI_SESSION_MANAGER, WADISessionManager.class,
122 NameFactory.GERONIMO_SERVICE);
123
124 infoBuilder.setConstructor(new String[]{GBEAN_REF_WADI_SESSION_MANAGER});
125
126 GBEAN_INFO = infoBuilder.getBeanInfo();
127 }
128
129 public static GBeanInfo getGBeanInfo() {
130 return GBEAN_INFO;
131 }
132 }