/** 
 * 
 * Copyright 2004 Protique Ltd
 * 
 * Licensed 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.codehaus.activemq.transport;

import org.codehaus.activemq.io.WireFormat;
import org.codehaus.activemq.transport.composite.CompositeTransportChannelFactory;

import javax.jms.JMSException;
import java.net.URI;

/**
 * @version $Revision: 1.2 $
 */
public abstract class DiscoveryTransportChannelFactorySupport extends CompositeTransportChannelFactory {
    private DiscoveryAgent discoveryAgent;

    public TransportChannel create(WireFormat wireFormat, URI remoteLocation) throws JMSException {
        if (discoveryAgent == null) {
            discoveryAgent = createDiscoveryAgent(remoteLocation);
        }
        return new DiscoveryTransportChannel(wireFormat, discoveryAgent);
    }

    public DiscoveryAgent getDiscoveryAgent() {
        return discoveryAgent;
    }

    public void setDiscoveryAgent(DiscoveryAgent discoveryAgent) {
        this.discoveryAgent = discoveryAgent;
    }

    protected abstract DiscoveryAgent createDiscoveryAgent(URI remoteLocation);

}