servicefacade.java

一个非常好的FRAMWRK!是一个外国组织做的!不!

/*
 * Copyright 2003-2005 the original author or authors.
 * Licensed 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 com.jdon.controller.service;

import javax.servlet.http.HttpServletRequest;

import com.jdon.container.ContainerWrapper;
import com.jdon.container.access.ServiceAccessorImp;
import com.jdon.container.finder.ComponentKeys;
import com.jdon.container.finder.ServletContainerFinder;

/**
 * @author <a href="mailto:banqJdon<AT>jdon.com">banq</a>
 *
 */
public class ServiceFacade {
    
    private ServiceFactory serviceFactory;
    private Service service;
    
    private ServletContainerFinder servletContainerFinder; 
    
    public ServiceFacade(){
        this.servletContainerFinder = new ServletContainerFinder();        
    }
    

    /**
     * the applciation' code get the service instance,
     * such as:
     * XXXService xxxService = WeAppUtil.getService("xxxService");
     * 
     * @return Returns the service.
     */
    public  Service getService(HttpServletRequest request) {
        ContainerWrapper containerWrapper = servletContainerFinder.findContainer(request);        
        Service service = (Service)containerWrapper.lookup(ComponentKeys.WEBSERVICE);
        return service;
    }
    
    /**
     * the model configure in jdonframework.xml will 
     * execute the service directly.
     * 
     * and the remote servlet will call this method
     * @return Returns the serviceFactory.
     */
    public ServiceFactory getServiceFactory(HttpServletRequest request) {
        ContainerWrapper containerWrapper = servletContainerFinder.findContainer(request);        
        ServiceFactory serviceFactory = (ServiceFactory)containerWrapper.lookup(ComponentKeys.WEBSERVICE_FACTORY);        
        return serviceFactory;
    }
}