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Diffstat (limited to 'java/broker/src/main/java/org/apache/qpid/server/filter/PropertyExpression.java')
| -rw-r--r-- | java/broker/src/main/java/org/apache/qpid/server/filter/PropertyExpression.java | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/java/broker/src/main/java/org/apache/qpid/server/filter/PropertyExpression.java b/java/broker/src/main/java/org/apache/qpid/server/filter/PropertyExpression.java new file mode 100644 index 0000000000..7d6a98df84 --- /dev/null +++ b/java/broker/src/main/java/org/apache/qpid/server/filter/PropertyExpression.java @@ -0,0 +1,305 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.qpid.server.filter; +// +// Based on like named file from r450141 of the Apache ActiveMQ project <http://www.activemq.org/site/home.html> +// + +import java.io.IOException; +import java.util.HashMap; + +import javax.jms.DeliveryMode; +import javax.jms.JMSException; + +//import org.apache.activemq.command.ActiveMQDestination; +//import org.apache.activemq.command.Message; +//import org.apache.activemq.command.TransactionId; +//import org.apache.activemq.util.JMSExceptionSupport; +import org.apache.qpid.server.queue.AMQMessage; +import org.apache.qpid.server.message.jms.JMSMessage; +import org.apache.qpid.AMQException; +import org.apache.qpid.framing.BasicContentHeaderProperties; +import org.apache.log4j.Logger; + +/** + * Represents a property expression + * + * @version $Revision$ + */ +public class PropertyExpression implements Expression +{ + + interface SubExpression + { + public Object evaluate(AMQMessage message) throws AMQException; + } + + interface JMSExpression + { + public abstract Object evaluate(JMSMessage message); + } + + static class SubJMSExpression implements SubExpression + { + JMSExpression _expression; + + SubJMSExpression(JMSExpression expression) + { + _expression = expression; + } + + + public Object evaluate(AMQMessage message) throws AMQException + { + JMSMessage msg = (JMSMessage) message.getDecodedMessage(AMQMessage.JMS_MESSAGE); + if (msg != null) + { + return _expression.evaluate(msg); + } + else + { + return null; + } + } + } + + private final static Logger _logger = org.apache.log4j.Logger.getLogger(PropertyExpression.class); + + + static final private HashMap JMS_PROPERTY_EXPRESSIONS = new HashMap(); + + static + { + JMS_PROPERTY_EXPRESSIONS.put("JMSDestination", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSDestination(); + } + } + )); +// +// public Object evaluate(AMQMessage message) +// { +// //fixme +// +// +//// AMQDestination dest = message.getOriginalDestination(); +//// if (dest == null) +//// { +//// dest = message.getDestination(); +//// } +//// if (dest == null) +//// { +//// return null; +//// } +//// return dest.toString(); +// return ""; +// } +// }); + JMS_PROPERTY_EXPRESSIONS.put("JMSReplyTo", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSReplyTo(); + } + }) + ); + + JMS_PROPERTY_EXPRESSIONS.put("JMSType", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSType(); + } + } + )); + + JMS_PROPERTY_EXPRESSIONS.put("JMSDeliveryMode", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + try + { + Integer mode = new Integer(message.getAMQMessage().isPersistent() ? DeliveryMode.PERSISTENT : DeliveryMode.NON_PERSISTENT); + _logger.info("JMSDeliveryMode is :" + mode); + return mode; + } + catch (AMQException e) + { + //shouldn't happen + } + + return DeliveryMode.NON_PERSISTENT; + } + })); + + JMS_PROPERTY_EXPRESSIONS.put("JMSPriority", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSPriority(); + } + } + )); + + + JMS_PROPERTY_EXPRESSIONS.put("AMQMessageID", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getAMQMessage().getMessageId(); + } + } + )); + + JMS_PROPERTY_EXPRESSIONS.put("JMSTimestamp", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSTimestamp(); + } + } + )); + + JMS_PROPERTY_EXPRESSIONS.put("JMSCorrelationID", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSCorrelationID(); + } + } + )); + + JMS_PROPERTY_EXPRESSIONS.put("JMSExpiration", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getJMSExpiration(); + } + } + )); + + JMS_PROPERTY_EXPRESSIONS.put("JMSRedelivered", new SubJMSExpression( + new JMSExpression() + { + public Object evaluate(JMSMessage message) + { + return message.getAMQMessage().isRedelivered(); + } + } + )); + + } + + private final String name; + private final SubExpression jmsPropertyExpression; + + public PropertyExpression(String name) + { + this.name = name; + jmsPropertyExpression = (SubExpression) JMS_PROPERTY_EXPRESSIONS.get(name); + } + + public Object evaluate(AMQMessage message) throws AMQException + { +// try +// { +// if (message.isDropped()) +// { +// return null; +// } + + if (jmsPropertyExpression != null) + { + return jmsPropertyExpression.evaluate(message); + } +// try + else + { + + BasicContentHeaderProperties _properties = (BasicContentHeaderProperties) message.getContentHeaderBody().properties; + + _logger.info("Looking up property:" + name); + _logger.info("Properties are:" + _properties.getHeaders().keySet()); + + return _properties.getHeaders().get(name); + } +// catch (IOException ioe) +// { +// JMSException exception = new JMSException("Could not get property: " + name + " reason: " + ioe.getMessage()); +// exception.initCause(ioe); +// throw exception; +// } +// } +// catch (IOException e) +// { +// JMSException exception = new JMSException(e.getMessage()); +// exception.initCause(e); +// throw exception; +// } + + } + + public String getName() + { + return name; + } + + + /** + * @see java.lang.Object#toString() + */ + public String toString() + { + return name; + } + + /** + * @see java.lang.Object#hashCode() + */ + public int hashCode() + { + return name.hashCode(); + } + + /** + * @see java.lang.Object#equals(java.lang.Object) + */ + public boolean equals(Object o) + { + + if (o == null || !this.getClass().equals(o.getClass())) + { + return false; + } + return name.equals(((PropertyExpression) o).name); + + } + +} |