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package com.sun.grizzly;

import com.sun.enterprise.web.connector.grizzly.comet.CometContext;
import com.sun.enterprise.web.connector.grizzly.comet.CometEngine;
import com.sun.enterprise.web.connector.grizzly.comet.CometEvent;
import com.sun.enterprise.web.connector.grizzly.comet.CometHandler;
import java.io.IOException;
import java.util.Random;

/**
 * Simple Continuation interface based on Grizzly 1.0 Comet implementation.
 * 
 * @author Jeanfrancois Arcand
 */
public class GrizzlyContinuation10 implements GrizzlyContinuation{
    
    CometContext ctx = CometEngine.getEngine().register(
            new String("Continuation-" + new Random().nextLong()));
    
    CometHandler continuationHandler = new CometHandler() {
        public void attach(Object o) {
        }
        public void onEvent(CometEvent cometEvent) throws IOException {
        }
        public void onInitialize(CometEvent cometEvent) throws IOException {
        }
        public void onInterrupt(CometEvent cometEvent) throws IOException {
        }
        public void onTerminate(CometEvent cometEvent) throws IOException {
        }
    };
    
    private Object object;
    
    
    /**
     * Suspend the connection for a maximum of sleepTime milliseconds
     * @param sleepTime The maximum time to wait
     */
    public void suspend(long sleepTime){
        ctx.setExpirationDelay(sleepTime);
        ctx.addCometHandler(continuationHandler);
    }
    
    /**
     * Resume an continuation.
     */
    public void resume() throws Exception {
        ctx.removeCometHandler(continuationHandler);
    }
    
    /**
     * Accessor for the object associated with this continuation
     * @return the object associated with this continuation
     */
    public Object getObject(){
        return object;
    }
    
    /**
     * Accessor for the object associated with this continuation
     * @param object the object associated with this continuation
     */
    public void setObject(Object object){
        this.object = object;
    }
}