| /* |
| * |
| * 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.util.HashMap; |
| |
| import org.apache.log4j.Logger; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.framing.AMQShortString; |
| import org.apache.qpid.framing.CommonContentHeaderProperties; |
| import org.apache.qpid.server.queue.Filterable; |
| |
| /** |
| * Represents a property expression |
| */ |
| public class PropertyExpression<E extends Exception> implements Expression<E> |
| { |
| // Constants - defined the same as JMS |
| private static final int NON_PERSISTENT = 1; |
| private static final int PERSISTENT = 2; |
| private static final int DEFAULT_PRIORITY = 4; |
| |
| private static final Logger _logger = org.apache.log4j.Logger.getLogger(PropertyExpression.class); |
| |
| private static final HashMap<String, Expression<? extends Exception>> JMS_PROPERTY_EXPRESSIONS = new HashMap<String, Expression<? extends Exception>>(); |
| |
| { |
| JMS_PROPERTY_EXPRESSIONS.put("JMSDestination", new Expression<E>() |
| { |
| public Object evaluate(Filterable<E> message) |
| { |
| //TODO |
| return null; |
| } |
| }); |
| JMS_PROPERTY_EXPRESSIONS.put("JMSReplyTo", new ReplyToExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSType", new TypeExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSDeliveryMode", new DeliveryModeExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSPriority", new PriorityExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("AMQMessageID", new MessageIDExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSTimestamp", new TimestampExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSCorrelationID", new CorrelationIdExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSExpiration", new ExpirationExpression()); |
| |
| JMS_PROPERTY_EXPRESSIONS.put("JMSRedelivered", new Expression<E>() |
| { |
| public Object evaluate(Filterable message) throws E |
| { |
| return message.isRedelivered(); |
| } |
| }); |
| } |
| |
| private final String name; |
| private final Expression<E> jmsPropertyExpression; |
| |
| public boolean outerTest() |
| { |
| return false; |
| } |
| |
| public PropertyExpression(String name) |
| { |
| this.name = name; |
| |
| |
| |
| jmsPropertyExpression = (Expression<E>) JMS_PROPERTY_EXPRESSIONS.get(name); |
| } |
| |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| |
| if (jmsPropertyExpression != null) |
| { |
| return jmsPropertyExpression.evaluate(message); |
| } |
| else |
| { |
| |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) message.getContentHeaderBody().properties; |
| |
| if (_logger.isDebugEnabled()) |
| { |
| _logger.debug("Looking up property:" + name); |
| _logger.debug("Properties are:" + _properties.getHeaders().keySet()); |
| } |
| |
| return _properties.getHeaders().getObject(name); |
| } |
| } |
| |
| 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); |
| |
| } |
| |
| private static class ReplyToExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| AMQShortString replyTo = _properties.getReplyTo(); |
| |
| return (replyTo == null) ? null : replyTo.toString(); |
| |
| } |
| |
| } |
| |
| private static class TypeExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| AMQShortString type = _properties.getType(); |
| |
| return (type == null) ? null : type.toString(); |
| |
| } |
| } |
| |
| private static class DeliveryModeExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| int mode = message.isPersistent() ? PERSISTENT : NON_PERSISTENT; |
| if (_logger.isDebugEnabled()) |
| { |
| _logger.debug("JMSDeliveryMode is :" + mode); |
| } |
| |
| return mode; |
| } |
| } |
| |
| private static class PriorityExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| |
| return (int) _properties.getPriority(); |
| } |
| } |
| |
| private static class MessageIDExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| AMQShortString messageId = _properties.getMessageId(); |
| |
| return (messageId == null) ? null : messageId; |
| |
| } |
| } |
| |
| private static class TimestampExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| |
| return _properties.getTimestamp(); |
| } |
| } |
| |
| private static class CorrelationIdExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| AMQShortString correlationId = _properties.getCorrelationId(); |
| |
| return (correlationId == null) ? null : correlationId.toString(); |
| } |
| } |
| |
| private static class ExpirationExpression<E extends Exception> implements Expression<E> |
| { |
| public Object evaluate(Filterable<E> message) throws E |
| { |
| |
| CommonContentHeaderProperties _properties = |
| (CommonContentHeaderProperties) |
| message.getContentHeaderBody().properties; |
| |
| return _properties.getExpiration(); |
| |
| } |
| } |
| } |