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package com.sun.enterprise.web;

import com.sun.enterprise.server.ServerContext;
import com.sun.appserv.server.ServerLifecycleImpl;
import com.sun.appserv.server.ServerLifecycleException;
import com.sun.enterprise.instance.InstanceEnvironment;

/**
 * This class implements the lifecycle methods used by the web
 * container subsystem for PE/RI.
 */
public final class PEWebContainerLifecycle extends WebContainerLifecycle {

    // --------------------------------------------------------- Public Methods

    /**
     * Server is initializing subsystems and setting up the runtime environment.
     * Prepare for the beginning of active use of the public methods of this
     * subsystem. This method is called before any of the public methods of 
     * this subsystem are utilized.  
     *
     * @param sc ServerContext the server runtime context.
     *
     * @exception IllegalStateException if this subsystem has already been
     *            started
     * @exception ServerLifecycleException if this subsystem detects a fatal 
     *            error that prevents this subsystem from being used
     */
    public void onInitialization(ServerContext sc) 
                        throws ServerLifecycleException {
    
	super.onInitialization(sc);
	//create an instance of the PE Web Container (Tomcat)
	PEWebContainer.createInstance(sc);
    }


   /**
     * Server is starting up applications
     *
     * @param sc ServerContext the server runtime context.
     *
     * @exception ServerLifecycleException if this subsystem detects a fatal 
     *  error that prevents this subsystem from being used
     */
    public void onStartup(ServerContext sc) 
            throws ServerLifecycleException {
	PEWebContainer.getPEWebContainer().startInstance();
    }

    /**
     * Server is shutting down applications
     *
     * @exception ServerLifecycleException if this subsystem detects a fatal 
     *  error that prevents this subsystem from being used
     */
    public void onShutdown() throws ServerLifecycleException {
        if (PEWebContainer.getPEWebContainer() != null) {
	    PEWebContainer.getPEWebContainer().stopInstance();
	} //else do nothing since PEWebContainer is not initialised
    }

    /**
     * Server is terminating the subsystems and the runtime environment.
     * Gracefully terminate the active use of the public methods of this
     * subsystem.  This method should be the last one called on a given
     * instance of this subsystem.
     *
     * @exception ServerLifecycleException if this subsystem detects a fatal 
     *  error that prevents this subsystem from being used
     */
    public void onTermination() throws ServerLifecycleException {        
    }

}