001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.messaging.webapp;
023
024 import java.io.BufferedInputStream;
025 import java.io.IOException;
026 import java.io.InputStream;
027 import java.io.OutputStream;
028
029 import javax.servlet.ServletContext;
030 import javax.servlet.ServletException;
031 import javax.servlet.http.HttpServletRequest;
032 import javax.servlet.http.HttpServletResponse;
033
034 import org.granite.config.GraniteConfig;
035 import org.granite.config.GraniteConfigListener;
036 import org.granite.config.flex.ServicesConfig;
037 import org.granite.context.GraniteContext;
038 import org.granite.logging.Logger;
039 import org.granite.messaging.amf.AMF0Message;
040 import org.granite.messaging.amf.io.AMF0Deserializer;
041 import org.granite.messaging.amf.io.AMF0Serializer;
042 import org.granite.messaging.amf.process.AMF0MessageProcessor;
043 import org.granite.messaging.jmf.JMFDeserializer;
044 import org.granite.messaging.jmf.JMFSerializer;
045 import org.granite.messaging.jmf.SharedContext;
046 import org.granite.util.ContentType;
047
048 /**
049 * @author Franck WOLFF
050 */
051 public class AMFEndpoint {
052
053 private static final Logger log = Logger.getLogger(AMFEndpoint.class);
054
055 public void init(ServletContext context) {
056 }
057
058 public void destroy() {
059 }
060
061 public void service(GraniteConfig graniteConfig, ServicesConfig servicesConfig, ServletContext context,
062 HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
063
064 if (ContentType.JMF_AMF.mimeType().equals(request.getContentType()))
065 serviceJMFAMF(graniteConfig, servicesConfig, context, request, response);
066 else
067 serviceAMF(graniteConfig, servicesConfig, context, request, response);
068 }
069
070 protected void serviceAMF(GraniteConfig graniteConfig, ServicesConfig servicesConfig, ServletContext context,
071 HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
072 log.debug(">> Incoming AMF0 request from: %s", request.getRequestURL());
073
074 InputStream is = null;
075 OutputStream os = null;
076
077 try {
078 is = new BufferedInputStream(request.getInputStream());
079
080 HttpGraniteContext.createThreadIntance(
081 graniteConfig, servicesConfig, context,
082 request, response
083 );
084
085 log.debug(">> Deserializing AMF0 request...");
086
087 AMF0Deserializer deserializer = new AMF0Deserializer(is);
088 AMF0Message amf0Request = deserializer.getAMFMessage();
089
090 log.debug(">> Processing AMF0 request: %s", amf0Request);
091
092 AMF0Message amf0Response = AMF0MessageProcessor.process(amf0Request);
093
094 log.debug("<< Serializing AMF0 response: %s", amf0Response);
095
096 response.setStatus(HttpServletResponse.SC_OK);
097 response.setContentType(ContentType.AMF.mimeType());
098 response.setDateHeader("Expire", 0L);
099 response.setHeader("Cache-Control", "no-store");
100
101 os = response.getOutputStream();
102 AMF0Serializer serializer = new AMF0Serializer(os);
103
104 serializer.serializeMessage(amf0Response);
105
106 response.flushBuffer();
107 }
108 catch (IOException e) {
109 if ("org.apache.catalina.connector.ClientAbortException".equals(e.getClass().getName()))
110 log.debug(e, "Connection closed by client");
111 else
112 log.error(e, "AMF message error");
113 throw e;
114 }
115 catch (Exception e) {
116 log.error(e, "AMF message error");
117 throw new ServletException(e);
118 }
119 finally {
120 GraniteContext.release();
121 }
122 }
123
124 protected void serviceJMFAMF(GraniteConfig graniteConfig, ServicesConfig servicesConfig, ServletContext context,
125 HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
126
127 log.debug(">> Incoming JMF+AMF request from: %s", request.getRequestURL());
128
129 SharedContext jmfSharedContext = GraniteConfigListener.getSharedContext(context);
130 if (jmfSharedContext == null)
131 throw GraniteConfigListener.newSharedContextNotInitializedException();
132
133 InputStream is = null;
134 OutputStream os = null;
135
136 try {
137 is = request.getInputStream();
138
139 HttpGraniteContext.createThreadIntance(
140 graniteConfig, servicesConfig, context,
141 request, response
142 );
143
144 log.debug(">> Deserializing JMF+AMF request...");
145
146 @SuppressWarnings("all") // JDK7 warning (Resource leak: 'deserializer' is never closed)...
147 JMFDeserializer deserializer = new JMFDeserializer(is, jmfSharedContext);
148 AMF0Message amf0Request = (AMF0Message)deserializer.readObject();
149
150 log.debug(">> Processing AMF0 request: %s", amf0Request);
151
152 AMF0Message amf0Response = AMF0MessageProcessor.process(amf0Request);
153
154 log.debug("<< Serializing JMF+AMF response: %s", amf0Response);
155
156 response.setStatus(HttpServletResponse.SC_OK);
157 response.setContentType(ContentType.JMF_AMF.mimeType());
158 response.setDateHeader("Expire", 0L);
159 response.setHeader("Cache-Control", "no-store");
160
161 os = response.getOutputStream();
162
163 @SuppressWarnings("all") // JDK7 warning (Resource leak: 'serializer' is never closed)...
164 JMFSerializer serializer = new JMFSerializer(os, jmfSharedContext);
165 serializer.writeObject(amf0Response);
166
167 response.flushBuffer();
168 }
169 catch (IOException e) {
170 if ("org.apache.catalina.connector.ClientAbortException".equals(e.getClass().getName()))
171 log.debug(e, "Connection closed by client");
172 else
173 log.error(e, "JMF+AMF message error");
174 throw e;
175 }
176 catch (Exception e) {
177 log.error(e, "JMF+AMF message error");
178 throw new ServletException(e);
179 }
180 finally {
181 GraniteContext.release();
182 }
183 }
184 }