trunk/activemq-core/src/main/java/org/apache/activemq/transport/discovery/multicast/MulticastDiscoveryAgentFactory.java

/**
 * 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.activemq.transport.discovery.multicast;

import java.io.IOException;
import java.net.URI;
import java.util.Map;

import org.apache.activemq.transport.discovery.DiscoveryAgent;
import org.apache.activemq.transport.discovery.DiscoveryAgentFactory;
import org.apache.activemq.util.IOExceptionSupport;
import org.apache.activemq.util.IntrospectionSupport;
import org.apache.activemq.util.URISupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MulticastDiscoveryAgentFactory extends DiscoveryAgentFactory {
	
	  private static final Logger LOG = LoggerFactory.getLogger(MulticastDiscoveryAgentFactory.class); 

    
    protected DiscoveryAgent doCreateDiscoveryAgent(URI uri) throws IOException {
        try {
        	
        	  if (LOG.isTraceEnabled()) {      
               LOG.trace("doCreateDiscoveryAgent: uri = " + uri.toString());               
            }
            
            MulticastDiscoveryAgent mda = new MulticastDiscoveryAgent();          
            
            mda.setDiscoveryURI(uri);            
                        
            // allow MDA's params to be set via query arguments  
            // (e.g., multicast://default?group=foo             
            Map options = URISupport.parseParameters(uri);         
            IntrospectionSupport.setProperties(mda, options);
            
            return mda;
            
        } catch (Throwable e) {
            throw IOExceptionSupport.create("Could not create discovery agent: " + uri, e);
        }
    }
}