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/*
*
* 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.exchange;
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.AMQUnknownExchangeType;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.server.virtualhost.VirtualHost;
public class DefaultExchangeFactory implements ExchangeFactory
{
private static final Logger _logger = Logger.getLogger(DefaultExchangeFactory.class);
private Map<AMQShortString, Class<? extends Exchange>> _exchangeClassMap = new HashMap<AMQShortString, Class<? extends Exchange>>();
private final VirtualHost _host;
public DefaultExchangeFactory(VirtualHost host)
{
_host = host;
_exchangeClassMap.put(ExchangeDefaults.DIRECT_EXCHANGE_CLASS, org.apache.qpid.server.exchange.DestNameExchange.class);
_exchangeClassMap.put(ExchangeDefaults.TOPIC_EXCHANGE_CLASS, org.apache.qpid.server.exchange.DestWildExchange.class);
_exchangeClassMap.put(ExchangeDefaults.HEADERS_EXCHANGE_CLASS, org.apache.qpid.server.exchange.HeadersExchange.class);
_exchangeClassMap.put(ExchangeDefaults.FANOUT_EXCHANGE_CLASS, org.apache.qpid.server.exchange.FanoutExchange.class);
}
public Exchange createExchange(AMQShortString exchange, AMQShortString type, boolean durable, boolean autoDelete,
int ticket)
throws AMQException
{
Class<? extends Exchange> exchClass = _exchangeClassMap.get(type);
if (exchClass == null)
{
throw new AMQUnknownExchangeType("Unknown exchange type: " + type);
}
try
{
Exchange e = exchClass.newInstance();
e.initialise(_host, exchange, durable, ticket, autoDelete);
return e;
}
catch (InstantiationException e)
{
throw new AMQException("Unable to create exchange: " + e, e);
}
catch (IllegalAccessException e)
{
throw new AMQException("Unable to create exchange: " + e, e);
}
}
}
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