diff options
Diffstat (limited to 'trunk/qpid/java/client/src/main/java/org/apache/qpid/filter/PropertyExpression.java')
-rw-r--r-- | trunk/qpid/java/client/src/main/java/org/apache/qpid/filter/PropertyExpression.java | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/trunk/qpid/java/client/src/main/java/org/apache/qpid/filter/PropertyExpression.java b/trunk/qpid/java/client/src/main/java/org/apache/qpid/filter/PropertyExpression.java new file mode 100644 index 0000000000..09152f7f1b --- /dev/null +++ b/trunk/qpid/java/client/src/main/java/org/apache/qpid/filter/PropertyExpression.java @@ -0,0 +1,297 @@ +/* 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.filter; + +import org.apache.qpid.client.message.AbstractJMSMessage; +import org.apache.qpid.QpidException; +import org.apache.qpid.ErrorCode; +import org.slf4j.LoggerFactory; +import org.slf4j.Logger; + +import javax.jms.JMSException; +import java.util.HashMap; + +/** + * Represents a property expression + */ +public class PropertyExpression implements Expression +{ + // Constants - defined the same as JMS + private static final int NON_PERSISTENT = 1; + private static final int DEFAULT_PRIORITY = 4; + + private static final Logger _logger = LoggerFactory.getLogger(PropertyExpression.class); + + private static final HashMap<String, Expression> JMS_PROPERTY_EXPRESSIONS = new HashMap<String, Expression>(); + + static + { + JMS_PROPERTY_EXPRESSIONS.put("JMSDestination", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + //TODO + return null; + } + }); + JMS_PROPERTY_EXPRESSIONS.put("JMSReplyTo", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + return message.getReplyToString(); + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSType", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + return message.getJMSType(); + } + catch (JMSException e) + { + _logger.warn("Error evaluating property", e); + + return null; + } + + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSDeliveryMode", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + int mode = message.getJMSDeliveryMode(); + if (_logger.isDebugEnabled()) + { + _logger.debug("JMSDeliveryMode is :" + mode); + } + + return mode; + } + catch (JMSException e) + { + _logger.warn("Error evaluating property",e); + } + + return NON_PERSISTENT; + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSPriority", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + return message.getJMSPriority(); + } + catch (Exception e) + { + _logger.warn("Error evaluating property",e); + } + + return DEFAULT_PRIORITY; + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("AMQMessageID", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + + try + { + return message.getJMSMessageID(); + } + catch (JMSException e) + { + _logger.warn("Error evaluating property",e); + + return null; + } + + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSTimestamp", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + return message.getJMSTimestamp(); + } + catch (Exception e) + { + _logger.warn("Error evaluating property",e); + + return null; + } + + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSCorrelationID", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + + try + { + return message.getJMSCorrelationID(); + } + catch (JMSException e) + { + _logger.warn("Error evaluating property",e); + + return null; + } + + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSExpiration", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + + try + { + return message.getJMSExpiration(); + } + catch (JMSException e) + { + _logger.warn("Error evaluating property",e); + return null; + } + + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSRedelivered", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + return message.getJMSRedelivered(); + } + catch (JMSException e) + { + _logger.warn("Error evaluating property",e); + return null; + } + } + }); + + JMS_PROPERTY_EXPRESSIONS.put("JMSMessageID", new Expression() + { + public Object evaluate(AbstractJMSMessage message) + { + try + { + return message.getJMSMessageID(); + } + catch (Exception e) + { + _logger.warn("Error evaluating property",e); + + return null; + } + + } + }); + + } + + private final String name; + private final Expression jmsPropertyExpression; + + public PropertyExpression(String name) + { + this.name = name; + jmsPropertyExpression = JMS_PROPERTY_EXPRESSIONS.get(name); + } + + public Object evaluate(AbstractJMSMessage message) throws QpidException + { + + if (jmsPropertyExpression != null) + { + return jmsPropertyExpression.evaluate(message); + } + else + { + + try + { + + if (_logger.isDebugEnabled()) + { + _logger.debug("Looking up property:" + name); + _logger.debug("Properties are:" + message.getPropertyNames()); + } + return message.getObjectProperty(name); + } + catch(JMSException e) + { + throw new QpidException("Exception evaluating properties for filter", ErrorCode.INTERNAL_ERROR, e); + } + } + } + + 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); + } + +} |