/*
* 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.servicemix.jbi.framework;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.servicemix.jbi.container.SubscriptionSpec;
import org.apache.servicemix.jbi.messaging.MessageExchangeImpl;
import org.apache.servicemix.jbi.servicedesc.InternalEndpoint;
/**
* Maintains a registry of the applicable subscriptions currently active for the
* current components
*
* @version $Revision: 564607 $
*/
public class SubscriptionRegistry {
private Map<SubscriptionSpec, InternalEndpoint> subscriptions = new ConcurrentHashMap<SubscriptionSpec, InternalEndpoint>();
private Registry registry;
public SubscriptionRegistry(Registry registry) {
this.registry = registry;
}
/**
* @param subscription
* @param endpoint
*/
public void registerSubscription(SubscriptionSpec subscription, InternalEndpoint endpoint) {
subscriptions.put(subscription, endpoint);
}
/**
* @param subscription
* @return the ServiceEndpoint
*/
public InternalEndpoint deregisterSubscription(SubscriptionSpec subscription) {
return (InternalEndpoint) subscriptions.remove(subscription);
}
/**
* @param exchange
* @return a List of matching endpoints - can return null if no matches
*/
public List<InternalEndpoint> getMatchingSubscriptionEndpoints(MessageExchangeImpl exchange) {
List<InternalEndpoint> result = null;
for (Iterator iter = subscriptions.entrySet().iterator(); iter.hasNext();) {
Map.Entry entry = (Map.Entry) iter.next();
SubscriptionSpec subscription = (SubscriptionSpec) entry.getKey();
if (subscription.matches(registry, exchange)) {
if (result == null) {
result = new ArrayList<InternalEndpoint>();
}
InternalEndpoint endpoint = (InternalEndpoint) entry.getValue();
result.add(endpoint);
}
}
return result;
}
}