source: trunk/src/main/java/omq/server/RemoteWrapper.java

package omq.server;

import java.util.ArrayList;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingDeque;

import omq.common.util.Serializer;

import org.apache.log4j.Logger;

import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.QueueingConsumer.Delivery;

/**
 * This class is used to encapsulate the invocationThreads under the
 * RemoteObject.
 * 
 * @author Sergi Toda <sergi.toda@estudiants.urv.cat>
 * 
 */
public class RemoteWrapper {
        private static final Logger logger = Logger.getLogger(RemoteWrapper.class.getName());

        private RemoteObject obj;
        private int numThreads;
        private ArrayList<InvocationThread> invocationList;
        private BlockingQueue<Delivery> deliveryQueue;

        public RemoteWrapper(RemoteObject obj, int numThreads, Serializer serializer) {
                this.obj = obj;
                this.numThreads = numThreads;
                invocationList = new ArrayList<InvocationThread>();
                deliveryQueue = new LinkedBlockingDeque<QueueingConsumer.Delivery>();

                logger.info("Object reference: " + obj.getRef() + ", numthreads listening = " + numThreads);

                for (int i = 0; i < numThreads; i++) {
                        InvocationThread thread = new InvocationThread(obj, deliveryQueue, serializer);
                        invocationList.add(thread);
                        thread.start();
                }
        }

        /**
         * This method notifies a delivery to an invocationThread using a
         * blockingQueue.
         * 
         * @param delivery
         *            - delivery which contains a Request to be invoked
         * @throws Exception
         */
        public void notifyDelivery(Delivery delivery) throws Exception {
                this.deliveryQueue.put(delivery);
        }

        /**
         * This method interrups all the invocationThreads under this remoteWrapper
         */
        public void stopRemoteWrapper() {
                logger.warn("Stopping Invocation threads vinculed to " + obj.getRef());
                for (InvocationThread thread : invocationList) {
                        thread.interrupt();
                }
        }

        public RemoteObject getObj() {
                return obj;
        }

        public void setObj(RemoteObject obj) {
                this.obj = obj;
        }

        public int getNumThreads() {
                return numThreads;
        }

        public void setNumThreads(int numThreads) {
                this.numThreads = numThreads;
        }

        public ArrayList<InvocationThread> getInvocationList() {
                return invocationList;
        }

        public void setInvocationList(ArrayList<InvocationThread> invocationList) {
                this.invocationList = invocationList;
        }

        public BlockingQueue<Delivery> getDeliveryQueue() {
                return deliveryQueue;
        }

        public void setDeliveryQueue(BlockingQueue<Delivery> deliveryQueue) {
                this.deliveryQueue = deliveryQueue;
        }
}