webserviceimp.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.bussinessproxy.meta.MethodMetaArgs;
import com.jdon.container.ContainerWrapper;
import com.jdon.container.access.TargetMetaRequest;
import com.jdon.container.access.UserTargetMetaDefFactory;
import com.jdon.container.finder.ContainerCallback;
import com.jdon.util.Debug;

/**
 * @author <a href="mailto:[e-mail]">banq</a>
 *
 */
public class WebServiceImp implements Service{
    
    private final static String module = WebServiceImp.class.getName();
    private ContainerCallback containerCallback;
    private WebServiceAccessor webServiceAccessor;
    
    public WebServiceImp(WebServiceAccessor webServiceAccessor,
                          ContainerCallback containerCallback){        
        this.webServiceAccessor = webServiceAccessor;
        this.containerCallback = containerCallback;
    }
    
    /**
     * running the service, and return the result
     */
    public Object execute(String name,
            MethodMetaArgs methodMetaArgs, 
            HttpServletRequest request)  throws Exception{
        if ((methodMetaArgs == null) || (methodMetaArgs.getMethodName() == null)){
            Debug.logWarning(" methodMetaArgs is null. cann't invoke service.execute");
        }
        ContainerWrapper cw = containerCallback.getContainerWrapper();
        TargetMetaDef targetMetaDef = UserTargetMetaDefFactory.getTargetMetaDef(name, cw);
        if (targetMetaDef == null) return null;
        Debug.logVerbose(" execute found :" + name, module);
        return execute(targetMetaDef, methodMetaArgs, request);
    }

    /**
     * running the service, and return the result
     */
    public Object execute( TargetMetaDef targetMetaDef,
                          MethodMetaArgs methodMetaArgs,
                          HttpServletRequest request)  throws Exception{
        Debug.logVerbose("enter service execution core ", module);
        TargetMetaRequest targetMetaRequest = UserTargetMetaDefFactory.create(targetMetaDef, request);
        targetMetaRequest.setMethodMetaArgs(methodMetaArgs);
        return webServiceAccessor.execute(targetMetaRequest, request);        
    }
}