Source Code Cross Referenced for MapMessageImpl.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » jms » message » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.jms.message 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *
023:         *   Free Software Foundation, Inc.
024:         *   59 Temple Place, Suite 330
025:         *   Boston, MA 02111-1307  USA
026:         *
027:         * @author Scott Ferguson
028:         */
029:
030:        package com.caucho.jms.message;
031:
032:        import javax.jms.JMSException;
033:        import javax.jms.MapMessage;
034:        import javax.jms.MessageFormatException;
035:        import java.util.*;
036:        import java.io.*;
037:        import com.caucho.vfs.*;
038:        import com.caucho.hessian.io.*;
039:
040:        /**
041:         * A stream message.
042:         */
043:        public class MapMessageImpl extends MessageImpl implements  MapMessage {
044:            private HashMap<String, Object> _map = new HashMap<String, Object>();
045:
046:            public MapMessageImpl() {
047:            }
048:
049:            MapMessageImpl(MapMessage map) throws JMSException {
050:                super (map);
051:
052:                Enumeration e = map.getMapNames();
053:                while (e.hasMoreElements()) {
054:                    String name = (String) e.nextElement();
055:
056:                    _map.put(name, map.getObject(name));
057:                }
058:            }
059:
060:            MapMessageImpl(MapMessageImpl map) {
061:                super (map);
062:
063:                _map.putAll(map._map);
064:            }
065:
066:            /**
067:             * Returns the type enumeration.
068:             */
069:            @Override
070:            public MessageType getType() {
071:                return MessageType.MAP;
072:            }
073:
074:            /**
075:             * Returns true if the object exists.
076:             */
077:            public boolean itemExists(String name) throws JMSException {
078:                return _map.containsKey(name);
079:            }
080:
081:            /**
082:             * Returns an enumeration of the map names.
083:             */
084:            public Enumeration getMapNames() throws JMSException {
085:                return Collections.enumeration(_map.keySet());
086:            }
087:
088:            /**
089:             * Get a boolean from the stream.
090:             */
091:            public boolean getBoolean(String name) throws JMSException {
092:                return ObjectConverter.toBoolean(getObject(name));
093:            }
094:
095:            /**
096:             * Get a byte from the stream.
097:             */
098:            public byte getByte(String name) throws JMSException {
099:                return ObjectConverter.toByte(getObject(name));
100:            }
101:
102:            /**
103:             * Get a short from the stream.
104:             */
105:            public short getShort(String name) throws JMSException {
106:                return ObjectConverter.toShort(getObject(name));
107:            }
108:
109:            /**
110:             * Get an integer from the stream.
111:             */
112:            public int getInt(String name) throws JMSException {
113:                return ObjectConverter.toInt(getObject(name));
114:            }
115:
116:            /**
117:             * Get a long from the stream.
118:             */
119:            public long getLong(String name) throws JMSException {
120:                return ObjectConverter.toLong(getObject(name));
121:            }
122:
123:            /**
124:             * Get a float from the stream.
125:             */
126:            public float getFloat(String name) throws JMSException {
127:                return ObjectConverter.toFloat(getObject(name));
128:            }
129:
130:            /**
131:             * Get a double from the stream.
132:             */
133:            public double getDouble(String name) throws JMSException {
134:                return ObjectConverter.toDouble(getObject(name));
135:            }
136:
137:            /**
138:             * Get a character object from the stream.
139:             */
140:            public char getChar(String name) throws JMSException {
141:                return ObjectConverter.toChar(getObject(name));
142:            }
143:
144:            /**
145:             * Get a string from the stream.
146:             */
147:            public String getString(String name) throws JMSException {
148:                return ObjectConverter.toString(getObject(name));
149:            }
150:
151:            /**
152:             * Get a byte array object from the stream.
153:             */
154:            public byte[] getBytes(String name) throws JMSException {
155:                return ObjectConverter.toBytes(getObject(name));
156:            }
157:
158:            /**
159:             * Get a byte array object from the stream.
160:             */
161:            public int getBytes(String name, byte[] value) throws JMSException {
162:                byte[] bytes = ObjectConverter.toBytes(getObject(name));
163:
164:                if (bytes == null)
165:                    return 0;
166:
167:                int sublen = bytes.length;
168:                if (value.length < sublen)
169:                    sublen = value.length;
170:
171:                for (int i = 0; i < sublen; i++)
172:                    value[i] = bytes[i];
173:
174:                return sublen;
175:            }
176:
177:            /**
178:             * Gets the next object.
179:             */
180:            public Object getObject(String name) throws JMSException {
181:                return _map.get(name);
182:            }
183:
184:            /**
185:             * Clears the message and puts it into write mode.
186:             */
187:            public void clearBody() throws JMSException {
188:                super .clearBody();
189:
190:                _map.clear();
191:            }
192:
193:            /**
194:             * Sets a boolean to the stream.
195:             */
196:            public void setBoolean(String name, boolean b) throws JMSException {
197:                setObject(name, new Boolean(b));
198:            }
199:
200:            /**
201:             * Sets a byte to the stream.
202:             */
203:            public void setByte(String name, byte b) throws JMSException {
204:                setObject(name, new Byte(b));
205:            }
206:
207:            /**
208:             * Sets a short to the stream.
209:             */
210:            public void setShort(String name, short s) throws JMSException {
211:                setObject(name, new Short(s));
212:            }
213:
214:            /**
215:             * Sets an integer to the stream.
216:             */
217:            public void setInt(String name, int i) throws JMSException {
218:                setObject(name, new Integer(i));
219:            }
220:
221:            /**
222:             * Sets a long to the stream.
223:             */
224:            public void setLong(String name, long l) throws JMSException {
225:                setObject(name, new Long(l));
226:            }
227:
228:            /**
229:             * Sets a float to the stream.
230:             */
231:            public void setFloat(String name, float f) throws JMSException {
232:                setObject(name, new Float(f));
233:            }
234:
235:            /**
236:             * Sets a double to the stream.
237:             */
238:            public void setDouble(String name, double d) throws JMSException {
239:                setObject(name, new Double(d));
240:            }
241:
242:            /**
243:             * Sets a string to the stream.
244:             */
245:            public void setString(String name, String s) throws JMSException {
246:                setObject(name, s);
247:            }
248:
249:            /**
250:             * Sets a character to the stream.
251:             */
252:            public void setChar(String name, char ch) throws JMSException {
253:                setObject(name, new Character(ch));
254:            }
255:
256:            /**
257:             * Sets a byte array to the stream.
258:             */
259:            public void setBytes(String name, byte[] buf) throws JMSException {
260:                setBytes(name, buf, 0, buf.length);
261:            }
262:
263:            /**
264:             * Sets a byte array to the stream.
265:             */
266:            public void setBytes(String name, byte[] buf, int offset, int length)
267:                    throws JMSException {
268:                byte[] newBuf = new byte[length];
269:
270:                System.arraycopy(buf, offset, newBuf, 0, length);
271:
272:                setObject(name, newBuf);
273:            }
274:
275:            /**
276:             * Sets the next object.
277:             */
278:            public void setObject(String name, Object obj) throws JMSException {
279:                checkBodyWriteable();
280:
281:                if (obj == null) {
282:                } else if (obj instanceof  byte[]) {
283:                } else if (!obj.getClass().getName().startsWith("java.lang."))
284:                    throw new MessageFormatException(L.l(
285:                            "'{0}' is an invalid value for a map message.", obj
286:                                    .getClass().getName()));
287:
288:                if (name == null || "".equals(name))
289:                    throw new IllegalArgumentException(L
290:                            .l("MapMessage.setXXX name may not be empty."));
291:
292:                _map.put(name, obj);
293:            }
294:
295:            public MessageImpl copy() {
296:                return new MapMessageImpl(this );
297:            }
298:
299:            protected void copy(MapMessageImpl newMsg) {
300:                super .copy(newMsg);
301:
302:                newMsg._map = new HashMap<String, Object>(_map);
303:            }
304:
305:            /**
306:             * Serialize the body to an input stream.
307:             */
308:            @Override
309:            public InputStream bodyToInputStream() throws IOException {
310:                if (_map == null)
311:                    return null;
312:
313:                TempStream body = new TempStream();
314:                body.openWrite();
315:
316:                StreamImplOutputStream ws = new StreamImplOutputStream(body);
317:
318:                Hessian2Output out = new Hessian2Output(ws);
319:
320:                out.writeObject(_map);
321:
322:                out.close();
323:
324:                ws.close();
325:
326:                return body.openRead();
327:            }
328:
329:            /**
330:             * Read the body from an input stream.
331:             */
332:            @Override
333:            public void readBody(InputStream is) throws IOException,
334:                    JMSException {
335:                if (is != null) {
336:                    Hessian2Input in = new Hessian2Input(is);
337:
338:                    _map = (HashMap<String, Object>) in.readObject();
339:
340:                    in.close();
341:                }
342:
343:                setBodyReadOnly();
344:            }
345:
346:            public String toString() {
347:                return "MapMessageImpl[]";
348:            }
349:        }
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