webservicefactory.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.bussinessproxy.TargetMetaDef;
import com.jdon.container.ContainerWrapper;
import com.jdon.container.access.ServiceAccessor;
import com.jdon.container.access.TargetMetaRequest;
import com.jdon.container.access.UserTargetMetaDefFactory;
import com.jdon.container.finder.ContainerCallback;
import com.jdon.container.finder.ServletContainerFinder;
import com.jdon.util.Debug;

/**
 * the defualt concrete class of ServiceFactory
 * by this class, we can get a service instance;
 * 
 *  
 * @author banq
 * @see {@link ServiceFactory}
 */
public class WebServiceFactory implements ServiceFactory {

    private final static String module = WebServiceFactory.class.getName();

    private ContainerCallback containerCallback;       
    private WebServiceAccessor webServiceAccessor;
    
    public WebServiceFactory(WebServiceAccessor webServiceAccessor,
                             ContainerCallback containerCallback){        
        this.webServiceAccessor = webServiceAccessor;
        this.containerCallback = containerCallback;
    }

    public Object getService(String name, HttpServletRequest request) {
        ContainerWrapper cw = containerCallback.getContainerWrapper();
        TargetMetaDef targetMetaDef = UserTargetMetaDefFactory.getTargetMetaDef(name, cw);
        if (targetMetaDef == null) return null;
        Debug.logVerbose(" getService found :" + name, module);
        return getService(targetMetaDef, request);
    }
 
    /**
     * get a service instance 
     * the service must have a interface and implements it.
     * 
     */
    public Object getService(TargetMetaDef targetMetaDef, HttpServletRequest request) {        
        TargetMetaRequest targetMetaRequest = UserTargetMetaDefFactory.create(targetMetaDef, request);
        return webServiceAccessor.getService(targetMetaRequest, request);
    }
        

}