diff options
Diffstat (limited to 'trunk/qpid/java/client/src/main/java/org/apache/qpid/client/message/AbstractAMQMessageDelegate.java')
| -rw-r--r-- | trunk/qpid/java/client/src/main/java/org/apache/qpid/client/message/AbstractAMQMessageDelegate.java | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/trunk/qpid/java/client/src/main/java/org/apache/qpid/client/message/AbstractAMQMessageDelegate.java b/trunk/qpid/java/client/src/main/java/org/apache/qpid/client/message/AbstractAMQMessageDelegate.java deleted file mode 100644 index 534fb19b76..0000000000 --- a/trunk/qpid/java/client/src/main/java/org/apache/qpid/client/message/AbstractAMQMessageDelegate.java +++ /dev/null @@ -1,151 +0,0 @@ -/* - * - * 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.client.message; - -import org.apache.qpid.client.AMQDestination; -import org.apache.qpid.client.AMQQueue; -import org.apache.qpid.client.AMQTopic; -import org.apache.qpid.client.AMQUndefinedDestination; -import org.apache.qpid.exchange.ExchangeDefaults; -import org.apache.qpid.framing.AMQShortString; - -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -/** - * This abstract class provides exchange lookup functionality that is shared - * between all MessageDelegates. Update facilities are provided so that the 0-10 - * code base can update the mappings. The 0-8 code base does not have the - * facility to update the exchange map so it can only use the default mappings. - * - * That said any updates that a 0-10 client performs will also benefit any 0-8 - * connections in this VM. - * - */ -public abstract class AbstractAMQMessageDelegate implements AMQMessageDelegate -{ - - private static Map<AMQShortString, Integer> _exchangeTypeMap = new ConcurrentHashMap<AMQShortString, Integer>(); - private static Map<String, Integer> _exchangeTypeStringMap = new ConcurrentHashMap<String, Integer>(); - private static Map<String, Integer> _exchangeTypeToDestinationType = new ConcurrentHashMap<String, Integer>(); - - /** - * Add default Mappings for the Direct, Default, Topic and Fanout exchanges. - */ - static - { - _exchangeTypeMap.put(ExchangeDefaults.DIRECT_EXCHANGE_NAME, AMQDestination.QUEUE_TYPE); - _exchangeTypeMap.put(AMQShortString.EMPTY_STRING, AMQDestination.QUEUE_TYPE); - _exchangeTypeMap.put(ExchangeDefaults.TOPIC_EXCHANGE_NAME, AMQDestination.TOPIC_TYPE); - _exchangeTypeMap.put(ExchangeDefaults.FANOUT_EXCHANGE_NAME, AMQDestination.TOPIC_TYPE); - - _exchangeTypeStringMap.put(ExchangeDefaults.DIRECT_EXCHANGE_NAME.toString(), AMQDestination.QUEUE_TYPE); - _exchangeTypeStringMap.put("", AMQDestination.QUEUE_TYPE); - _exchangeTypeStringMap.put(ExchangeDefaults.TOPIC_EXCHANGE_NAME.toString(), AMQDestination.TOPIC_TYPE); - _exchangeTypeStringMap.put(ExchangeDefaults.FANOUT_EXCHANGE_NAME.toString(), AMQDestination.TOPIC_TYPE); - - _exchangeTypeToDestinationType.put(ExchangeDefaults.DIRECT_EXCHANGE_NAME.toString(), AMQDestination.QUEUE_TYPE); - _exchangeTypeToDestinationType.put(ExchangeDefaults.TOPIC_EXCHANGE_NAME.toString(), AMQDestination.TOPIC_TYPE); - _exchangeTypeToDestinationType.put(ExchangeDefaults.FANOUT_EXCHANGE_NAME.toString(), AMQDestination.TOPIC_TYPE); - } - - /** - * Called when a Destination is requried. - * - * This will create the AMQDestination that is the correct type and value - * based on the incomming values. - * @param exchange The exchange name - * @param routingKey The routing key to be used for the Destination - * @return AMQDestination of the correct subtype - */ - protected AMQDestination generateDestination(AMQShortString exchange, AMQShortString routingKey) - { - AMQDestination dest; - switch (getExchangeType(exchange)) - { - case AMQDestination.QUEUE_TYPE: - dest = new AMQQueue(exchange, routingKey, routingKey); - break; - case AMQDestination.TOPIC_TYPE: - dest = new AMQTopic(exchange, routingKey, null); - break; - default: - dest = new AMQUndefinedDestination(exchange, routingKey, null); - } - - return dest; - } - - /** - * Update the exchange name to type mapping. - * - * If the newType is not known then an UNKNOWN_TYPE is created. Only if the - * exchange is of a known type: amq.direct, amq.topic, amq.fanout can we - * create a suitable AMQDestination representation - * - * @param exchange the name of the exchange - * @param newtype the AMQP exchange class name i.e. amq.direct - */ - protected static void updateExchangeType(String exchange, String newtype) - { - Integer type = _exchangeTypeToDestinationType.get(newtype); - if (type == null) - { - type = AMQDestination.UNKNOWN_TYPE; - } - _exchangeTypeStringMap.put(exchange, type); - _exchangeTypeMap.put(new AMQShortString(exchange), type); - } - - /** - * Accessor method to allow lookups of the given exchange name. - * - * This check allows the prevention of extra work required such as asking - * the broker for the exchange class name. - * - * @param exchange the exchange name to lookup - * @return true if there is a mapping for this exchange - */ - protected static boolean exchangeMapContains(String exchange) - { - return _exchangeTypeStringMap.containsKey(exchange); - } - - /** - * Returns an int representing the exchange type. This is used in the - * createDestination method to ensure the correct AMQDestiation is created. - * - * @param exchange the exchange name to lookup - * @return int representing the Exchange type - */ - private int getExchangeType(AMQShortString exchange) - { - Integer type = _exchangeTypeMap.get(exchange == null ? AMQShortString.EMPTY_STRING : exchange); - - if (type == null) - { - return AMQDestination.UNKNOWN_TYPE; - } - - return type; - } - -} |