Source Code Cross Referenced for JmsUtils.java in  » J2EE » spring-framework-2.0.6 » org » springframework » jms » support » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.jms.support 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2002-2006 the original author or authors.
003:         *
004:         * Licensed under the Apache License, Version 2.0 (the "License");
005:         * you may not use this file except in compliance with the License.
006:         * You may obtain a copy of the License at
007:         *
008:         *      http://www.apache.org/licenses/LICENSE-2.0
009:         *
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS,
012:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013:         * See the License for the specific language governing permissions and
014:         * limitations under the License.
015:         */
016:
017:        package org.springframework.jms.support;
018:
019:        import javax.jms.Connection;
020:        import javax.jms.JMSException;
021:        import javax.jms.MessageConsumer;
022:        import javax.jms.MessageProducer;
023:        import javax.jms.QueueRequestor;
024:        import javax.jms.Session;
025:
026:        import org.apache.commons.logging.Log;
027:        import org.apache.commons.logging.LogFactory;
028:
029:        import org.springframework.jms.InvalidClientIDException;
030:        import org.springframework.jms.InvalidDestinationException;
031:        import org.springframework.jms.InvalidSelectorException;
032:        import org.springframework.jms.JmsException;
033:        import org.springframework.jms.JmsSecurityException;
034:        import org.springframework.jms.MessageEOFException;
035:        import org.springframework.jms.MessageFormatException;
036:        import org.springframework.jms.MessageNotReadableException;
037:        import org.springframework.jms.MessageNotWriteableException;
038:        import org.springframework.jms.ResourceAllocationException;
039:        import org.springframework.jms.TransactionInProgressException;
040:        import org.springframework.jms.TransactionRolledBackException;
041:        import org.springframework.jms.UncategorizedJmsException;
042:        import org.springframework.util.Assert;
043:
044:        /**
045:         * Generic utility methods for working with JMS. Mainly for internal use
046:         * within the framework, but also useful for custom JMS access code.
047:         *
048:         * @author Juergen Hoeller
049:         * @since 1.1
050:         */
051:        public abstract class JmsUtils {
052:
053:            private static final Log logger = LogFactory.getLog(JmsUtils.class);
054:
055:            /**
056:             * Close the given JMS Connection and ignore any thrown exception.
057:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
058:             * @param con the JMS Connection to close (may be <code>null</code>)
059:             */
060:            public static void closeConnection(Connection con) {
061:                closeConnection(con, false);
062:            }
063:
064:            /**
065:             * Close the given JMS Connection and ignore any thrown exception.
066:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
067:             * @param con the JMS Connection to close (may be <code>null</code>)
068:             * @param stop whether to call <code>stop()</code> before closing
069:             */
070:            public static void closeConnection(Connection con, boolean stop) {
071:                if (con != null) {
072:                    try {
073:                        if (stop) {
074:                            try {
075:                                con.stop();
076:                            } finally {
077:                                con.close();
078:                            }
079:                        } else {
080:                            con.close();
081:                        }
082:                    } catch (JMSException ex) {
083:                        logger.debug("Could not close JMS Connection", ex);
084:                    } catch (Throwable ex) {
085:                        // We don't trust the JMS provider: It might throw RuntimeException or Error.
086:                        logger
087:                                .debug(
088:                                        "Unexpected exception on closing JMS Connection",
089:                                        ex);
090:                    }
091:                }
092:            }
093:
094:            /**
095:             * Close the given JMS Session and ignore any thrown exception.
096:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
097:             * @param session the JMS Session to close (may be <code>null</code>)
098:             */
099:            public static void closeSession(Session session) {
100:                if (session != null) {
101:                    try {
102:                        session.close();
103:                    } catch (JMSException ex) {
104:                        logger.debug("Could not close JMS Session", ex);
105:                    } catch (Throwable ex) {
106:                        // We don't trust the JMS provider: It might throw RuntimeException or Error.
107:                        logger.debug(
108:                                "Unexpected exception on closing JMS Session",
109:                                ex);
110:                    }
111:                }
112:            }
113:
114:            /**
115:             * Close the given JMS MessageProducer and ignore any thrown exception.
116:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
117:             * @param producer the JMS MessageProducer to close (may be <code>null</code>)
118:             */
119:            public static void closeMessageProducer(MessageProducer producer) {
120:                if (producer != null) {
121:                    try {
122:                        producer.close();
123:                    } catch (JMSException ex) {
124:                        logger.debug("Could not close JMS MessageProducer", ex);
125:                    } catch (Throwable ex) {
126:                        // We don't trust the JMS provider: It might throw RuntimeException or Error.
127:                        logger
128:                                .debug(
129:                                        "Unexpected exception on closing JMS MessageProducer",
130:                                        ex);
131:                    }
132:                }
133:            }
134:
135:            /**
136:             * Close the given JMS MessageConsumer and ignore any thrown exception.
137:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
138:             * @param consumer the JMS MessageConsumer to close (may be <code>null</code>)
139:             */
140:            public static void closeMessageConsumer(MessageConsumer consumer) {
141:                if (consumer != null) {
142:                    try {
143:                        consumer.close();
144:                    } catch (JMSException ex) {
145:                        logger.debug("Could not close JMS MessageConsumer", ex);
146:                    } catch (Throwable ex) {
147:                        // We don't trust the JMS provider: It might throw RuntimeException or Error.
148:                        logger
149:                                .debug(
150:                                        "Unexpected exception on closing JMS MessageConsumer",
151:                                        ex);
152:                    }
153:                }
154:            }
155:
156:            /**
157:             * Close the given JMS QueueRequestor and ignore any thrown exception.
158:             * This is useful for typical <code>finally</code> blocks in manual JMS code.
159:             * @param requestor the JMS QueueRequestor to close (may be <code>null</code>)
160:             */
161:            public static void closeQueueRequestor(QueueRequestor requestor) {
162:                if (requestor != null) {
163:                    try {
164:                        requestor.close();
165:                    } catch (JMSException ex) {
166:                        logger.debug("Could not close JMS QueueRequestor", ex);
167:                    } catch (Throwable ex) {
168:                        // We don't trust the JMS provider: It might throw RuntimeException or Error.
169:                        logger
170:                                .debug(
171:                                        "Unexpected exception on closing JMS QueueRequestor",
172:                                        ex);
173:                    }
174:                }
175:            }
176:
177:            /**
178:             * Commit the Session if not within a JTA transaction.
179:             * @param session the JMS Session to commit
180:             * @throws JMSException if committing failed
181:             */
182:            public static void commitIfNecessary(Session session)
183:                    throws JMSException {
184:                Assert.notNull(session, "Session must not be null");
185:                try {
186:                    session.commit();
187:                } catch (javax.jms.TransactionInProgressException ex) {
188:                    // Ignore -> can only happen in case of a JTA transaction.
189:                } catch (javax.jms.IllegalStateException ex) {
190:                    // Ignore -> can only happen in case of a JTA transaction.
191:                }
192:            }
193:
194:            /**
195:             * Rollback the Session if not within a JTA transaction.
196:             * @param session the JMS Session to rollback
197:             * @throws JMSException if committing failed
198:             */
199:            public static void rollbackIfNecessary(Session session)
200:                    throws JMSException {
201:                Assert.notNull(session, "Session must not be null");
202:                try {
203:                    session.rollback();
204:                } catch (javax.jms.TransactionInProgressException ex) {
205:                    // Ignore -> can only happen in case of a JTA transaction.
206:                } catch (javax.jms.IllegalStateException ex) {
207:                    // Ignore -> can only happen in case of a JTA transaction.
208:                }
209:            }
210:
211:            /**
212:             * Convert the specified checked {@link javax.jms.JMSException JMSException} to
213:             * a Spring runtime {@link org.springframework.jms.JmsException JmsException}
214:             * equivalent.
215:             * @param ex the original checked JMSException to convert
216:             * @return the Spring runtime JmsException wrapping the given exception
217:             */
218:            public static JmsException convertJmsAccessException(JMSException ex) {
219:                Assert.notNull(ex, "JMSException must not be null");
220:
221:                if (ex instanceof  javax.jms.IllegalStateException) {
222:                    return new org.springframework.jms.IllegalStateException(
223:                            (javax.jms.IllegalStateException) ex);
224:                }
225:                if (ex instanceof  javax.jms.InvalidClientIDException) {
226:                    return new InvalidClientIDException(
227:                            (javax.jms.InvalidClientIDException) ex);
228:                }
229:                if (ex instanceof  javax.jms.InvalidDestinationException) {
230:                    return new InvalidDestinationException(
231:                            (javax.jms.InvalidDestinationException) ex);
232:                }
233:                if (ex instanceof  javax.jms.InvalidSelectorException) {
234:                    return new InvalidSelectorException(
235:                            (javax.jms.InvalidSelectorException) ex);
236:                }
237:                if (ex instanceof  javax.jms.JMSSecurityException) {
238:                    return new JmsSecurityException(
239:                            (javax.jms.JMSSecurityException) ex);
240:                }
241:                if (ex instanceof  javax.jms.MessageEOFException) {
242:                    return new MessageEOFException(
243:                            (javax.jms.MessageEOFException) ex);
244:                }
245:                if (ex instanceof  javax.jms.MessageFormatException) {
246:                    return new MessageFormatException(
247:                            (javax.jms.MessageFormatException) ex);
248:                }
249:                if (ex instanceof  javax.jms.MessageNotReadableException) {
250:                    return new MessageNotReadableException(
251:                            (javax.jms.MessageNotReadableException) ex);
252:                }
253:                if (ex instanceof  javax.jms.MessageNotWriteableException) {
254:                    return new MessageNotWriteableException(
255:                            (javax.jms.MessageNotWriteableException) ex);
256:                }
257:                if (ex instanceof  javax.jms.ResourceAllocationException) {
258:                    return new ResourceAllocationException(
259:                            (javax.jms.ResourceAllocationException) ex);
260:                }
261:                if (ex instanceof  javax.jms.TransactionInProgressException) {
262:                    return new TransactionInProgressException(
263:                            (javax.jms.TransactionInProgressException) ex);
264:                }
265:                if (ex instanceof  javax.jms.TransactionRolledBackException) {
266:                    return new TransactionRolledBackException(
267:                            (javax.jms.TransactionRolledBackException) ex);
268:                }
269:
270:                // fallback
271:                return new UncategorizedJmsException(ex);
272:            }
273:
274:        }
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