Source Code Cross Referenced for SAAJServlet.java in  » Web-Services » saaj » com » sun » xml » messaging » soap » server » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Services » saaj » com.sun.xml.messaging.soap.server 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The contents of this file are subject to the terms
003:         * of the Common Development and Distribution License
004:         * (the "License").  You may not use this file except
005:         * in compliance with the License.
006:         *
007:         * You can obtain a copy of the license at
008:         * https://jwsdp.dev.java.net/CDDLv1.0.html
009:         * See the License for the specific language governing
010:         * permissions and limitations under the License.
011:         *
012:         * When distributing Covered Code, include this CDDL
013:         * HEADER in each file and include the License file at
014:         * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
015:         * add the following below this CDDL HEADER, with the
016:         * fields enclosed by brackets "[]" replaced with your
017:         * own identifying information: Portions Copyright [yyyy]
018:         * [name of copyright owner]
019:         */
020:        /*
021:         * $Id: SAAJServlet.java,v 1.2 2007/07/16 16:41:15 ofung Exp $
022:         * $Revision: 1.2 $
023:         * $Date: 2007/07/16 16:41:15 $
024:         */
025:
026:        /*
027:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
028:         * 
029:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
030:         * 
031:         * The contents of this file are subject to the terms of either the GNU
032:         * General Public License Version 2 only ("GPL") or the Common Development
033:         * and Distribution License("CDDL") (collectively, the "License").  You
034:         * may not use this file except in compliance with the License. You can obtain
035:         * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
036:         * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
037:         * language governing permissions and limitations under the License.
038:         * 
039:         * When distributing the software, include this License Header Notice in each
040:         * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
041:         * Sun designates this particular file as subject to the "Classpath" exception
042:         * as provided by Sun in the GPL Version 2 section of the License file that
043:         * accompanied this code.  If applicable, add the following below the License
044:         * Header, with the fields enclosed by brackets [] replaced by your own
045:         * identifying information: "Portions Copyrighted [year]
046:         * [name of copyright owner]"
047:         * 
048:         * Contributor(s):
049:         * 
050:         * If you wish your version of this file to be governed by only the CDDL or
051:         * only the GPL Version 2, indicate your decision by adding "[Contributor]
052:         * elects to include this software in this distribution under the [CDDL or GPL
053:         * Version 2] license."  If you don't indicate a single choice of license, a
054:         * recipient has the option to distribute your version of this file under
055:         * either the CDDL, the GPL Version 2 or to extend the choice of license to
056:         * its licensees as provided above.  However, if you add GPL Version 2 code
057:         * and therefore, elected the GPL Version 2 license, then the option applies
058:         * only if the new code is made subject to such option by the copyright
059:         * holder.
060:         */
061:        package com.sun.xml.messaging.soap.server;
062:
063:        import java.io.*;
064:        import java.util.*;
065:
066:        import javax.servlet.ServletConfig;
067:        import javax.servlet.ServletException;
068:        import javax.servlet.http.*;
069:        import javax.xml.soap.*;
070:
071:        /**
072:         * The superclass for components that
073:         * live in a servlet container that receives SAAJ messages.
074:         * A <code>SAAJServlet</code> object is notified of a message's arrival
075:         * using the HTTP-SOAP binding.
076:         * <P>
077:         * The <code>SAAJServlet</code> class is a support/utility class and is
078:         * provided purely as a convenience.  It is not a mandatory component, and
079:         * there is no requirement that it be implemented or extended.
080:         * <P>
081:         */
082:        public abstract class SAAJServlet extends HttpServlet {
083:
084:            /**
085:             * A <code>SOAPConnection</code> for use of the <code>SAAJServlet</code>.
086:             */
087:            protected SOAPConnection conn = null;
088:
089:            /**
090:             * The <code>MessageFactory</code> object that will be used internally
091:             * to create the <code>SOAPMessage</code> object to be passed to the
092:             * method <code>onMessage</code>. This new message will contain the data
093:             * from the message that was posted to the servlet.
094:             * Based on the incoming message's content type a SOAP 1.1 or 1.2 Message
095:             * reply is created. A dynamic messageFactory is created which automatically
096:             * figures out the SOAP version.
097:             */
098:            protected MessageFactory msgFactory = null;
099:
100:            /**
101:             * Initializes this <code>SAAJServlet</code> object using the given
102:             * <code>ServletConfig</code> object and initializing the
103:             * <code>msgFactory</code> field with a default
104:             * <code>MessageFactory</code> object.
105:             *
106:             * @param servletConfig the <code>ServletConfig</code> object to be
107:             *        used in initializing this <code>SAAJServlet</code> object
108:             */
109:            public void init(ServletConfig servletConfig)
110:                    throws ServletException {
111:                super .init(servletConfig);
112:                try {
113:                    msgFactory = MessageFactory.newInstance();
114:                    SOAPConnectionFactory connFactory = SOAPConnectionFactory
115:                            .newInstance();
116:                    conn = connFactory.createConnection();
117:                } catch (SOAPException ex) {
118:                    throw new ServletException(
119:                            "Unable to create message factory"
120:                                    + ex.getMessage());
121:                }
122:            }
123:
124:            /**
125:             * Sets this <code>SAAJServlet</code> object's <code>msgFactory</code>
126:             * field with the given <code>MessageFactory</code> object.
127:             * A <code>MessageFactory</code> object for a particular profile needs to
128:             * be set before a message is received in order for the message to be
129:             * successfully internalized.
130:             *
131:             * @param msgFactory the <code>MessageFactory</code> object that will
132:             *        be used to create the <code>SOAPMessage</code> object that
133:             *        will be used to internalize the message that was posted to
134:             *        the servlet
135:             */
136:            public void setMessageFactory(MessageFactory msgFactory) {
137:                this .msgFactory = msgFactory;
138:            }
139:
140:            /**
141:             * Returns a <code>MimeHeaders</code> object that contains the headers
142:             * in the given <code>HttpServletRequest</code> object.
143:             *
144:             * @param req the <code>HttpServletRequest</code> object that a
145:             *        messaging provider sent to the servlet
146:             * @return a new <code>MimeHeaders</code> object containing the headers
147:             *         in the message sent to the servlet
148:             */
149:            protected static MimeHeaders getHeaders(HttpServletRequest req) {
150:                Enumeration enumeration = req.getHeaderNames();
151:                MimeHeaders headers = new MimeHeaders();
152:
153:                while (enumeration.hasMoreElements()) {
154:                    String headerName = (String) enumeration.nextElement();
155:                    String headerValue = req.getHeader(headerName);
156:
157:                    StringTokenizer values = new StringTokenizer(headerValue,
158:                            ",");
159:
160:                    while (values.hasMoreTokens()) {
161:                        headers
162:                                .addHeader(headerName, values.nextToken()
163:                                        .trim());
164:                    }
165:                }
166:
167:                return headers;
168:            }
169:
170:            /**
171:             * Sets the given <code>HttpServletResponse</code> object with the
172:             * headers in the given <code>MimeHeaders</code> object.
173:             *
174:             * @param headers the <code>MimeHeaders</code> object containing the
175:             *        the headers in the message sent to the servlet
176:             * @param res the <code>HttpServletResponse</code> object to which the
177:             *        headers are to be written
178:             * @see #getHeaders
179:             */
180:            protected static void putHeaders(MimeHeaders headers,
181:                    HttpServletResponse res) {
182:                Iterator it = headers.getAllHeaders();
183:
184:                while (it.hasNext()) {
185:                    MimeHeader header = (MimeHeader) it.next();
186:
187:                    String[] values = headers.getHeader(header.getName());
188:
189:                    if (values.length == 1) {
190:                        res.setHeader(header.getName(), header.getValue());
191:                    } else {
192:                        StringBuffer concat = new StringBuffer();
193:                        int i = 0;
194:
195:                        while (i < values.length) {
196:                            if (i != 0) {
197:                                concat.append(',');
198:                            }
199:                            concat.append(values[i++]);
200:                        }
201:                        res.setHeader(header.getName(), concat.toString());
202:                    }
203:                }
204:            }
205:
206:            /**
207:             * Internalizes the given <code>HttpServletRequest</code> object
208:             * and writes the reply to the given <code>HttpServletResponse</code>
209:             * object.
210:             * <P>
211:             * Note that the value for the <code>msgFactory</code> field will be used to
212:             * internalize the message. This ensures that the message
213:             * factory for the correct profile is used.
214:             *
215:             * @param req the <code>HttpServletRequest</code> object containing the
216:             *        message that was sent to the servlet
217:             * @param resp the <code>HttpServletResponse</code> object to which the
218:             *        response to the message will be written
219:             * @throws ServletException if there is a servlet error
220:             * @throws IOException if there is an input or output error
221:             */
222:            public void doPost(HttpServletRequest req, HttpServletResponse resp)
223:                    throws ServletException, IOException {
224:                try {
225:                    // Get all the headers from the HTTP request.
226:                    MimeHeaders headers = getHeaders(req);
227:
228:                    // Get the body of the HTTP request.
229:                    InputStream is = req.getInputStream();
230:
231:                    // Now internalize the contents of a HTTP request and
232:                    // create a SOAPMessage
233:                    SOAPMessage msg = msgFactory.createMessage(headers, is);
234:
235:                    SOAPMessage reply = null;
236:
237:                    // There are no replies in case of an OnewayListener.
238:                    reply = onMessage(msg);
239:
240:                    if (reply != null) {
241:
242:                        // Need to saveChanges 'cos we're going to use the
243:                        // MimeHeaders to set HTTP response information. These
244:                        // MimeHeaders are generated as part of the save.
245:
246:                        if (reply.saveRequired()) {
247:                            reply.saveChanges();
248:                        }
249:
250:                        resp.setStatus(HttpServletResponse.SC_OK);
251:
252:                        putHeaders(reply.getMimeHeaders(), resp);
253:
254:                        // Write out the message on the response stream.
255:                        OutputStream os = resp.getOutputStream();
256:
257:                        reply.writeTo(os);
258:
259:                        os.flush();
260:
261:                    } else {
262:                        resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
263:                    }
264:                } catch (Exception ex) {
265:                    throw new ServletException("SAAJ POST failed "
266:                            + ex.getMessage());
267:                }
268:            }
269:
270:            public abstract SOAPMessage onMessage(SOAPMessage message);
271:
272:        }
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