/**
 *  Copyright (C) 2010 Cloud.com, Inc.  All rights reserved.
 * 
 * This software is licensed under the GNU General Public License v3 or later.
 * 
 * It is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package com.cloud.servlet;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;

import org.apache.log4j.Logger;

import com.cloud.api.ApiServer;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.server.ConfigurationServer;
import com.cloud.server.ManagementServer;
import com.cloud.utils.SerialVersionUID;
import com.cloud.utils.component.ComponentLocator;

public class CloudStartupServlet extends HttpServlet implements ServletContextListener {
	public static final Logger s_logger = Logger.getLogger(CloudStartupServlet.class.getName());
	
    static final long serialVersionUID = SerialVersionUID.CloudStartupServlet;
   
    protected static ComponentLocator s_locator;
    
	@Override
    public void init() throws ServletException {
	    // Save Configuration Values
        //ComponentLocator loc = ComponentLocator.getLocator(ConfigurationServer.Name);
	    ConfigurationServer c = (ConfigurationServer)ComponentLocator.getComponent(ConfigurationServer.Name);
	    //ConfigurationServer c = new ConfigurationServerImpl();
	    try {
	    	c.persistDefaultValues();
	    	s_locator = ComponentLocator.getLocator(ManagementServer.Name);
		    ManagementServer ms = (ManagementServer)ComponentLocator.getComponent(ManagementServer.Name);
		    ApiServer.initApiServer(ms.getApiConfig());
	    } catch (InvalidParameterValueException ipve) {
	    	s_logger.error("Exception starting management server ", ipve);
	    	throw new ServletException (ipve.getMessage());
	    } catch (Exception e) {
	    	s_logger.error("Exception starting management server ", e);
	    	throw new ServletException (e.getMessage());
	    }
	}
	
	@Override
	public void contextInitialized(ServletContextEvent sce) {
	    try {
	        init();
	    } catch (ServletException e) {
	        s_logger.error("Exception starting management server ", e);
	        throw new RuntimeException(e);
	    }
	}
	
	@Override
	public void contextDestroyed(ServletContextEvent sce) {
	}
}