serviceregistry.java

Java/J2EE框架Jdon-Framework系统的Sample

/**
 * Copyright 2005 Jdon.com
 * 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.bussinessproxy;

import com.jdon.bussinessproxy.web.DefaultServiceAdapter;
import com.jdon.bussinessproxy.method.EJBMethodInvoker;
import com.jdon.bussinessproxy.target.EJBTargetService;
import com.jdon.controller.ContainerRegistry;
import com.jdon.controller.ContainerWrapper;

import com.jdon.bussinessproxy.config.TargetMetaDefXmlLoader;
import java.util.List;
import com.jdon.aop.joinpoint.JoinpointFactory;

import org.picocontainer.defaults.ComponentParameter;
import org.picocontainer.Parameter;
import java.util.Collection;
import org.picocontainer.MutablePicoContainer;
import com.jdon.aop.AopInterceptorRegistry;
import com.jdon.bussinessproxy.cache.VisitorFactory;

import com.jdon.bussinessproxy.cache.VisitableFactory;
import org.picocontainer.defaults.DuplicateComponentKeyRegistrationException;
import java.util.Map;
import java.util.Iterator;
import com.jdon.util.Debug;

/**
 * ServiceFactory
 *
 * 利用Picocontainer生成Service
 *
 * <p>Copyright: Jdon.com Copyright (c) 2003</p>
 * <p></p>
 * @author banq
 * @version 1.0
 */
public class ServiceRegistry implements ContainerRegistry, KeyConstants {

  private final static String module = ServiceRegistry.class.getName();
  private ContainerWrapper containerWrapper;
  public ContainerWrapper getContainerWrapper() {
    return containerWrapper;
  }

  public ServiceRegistry(ContainerWrapper containerWrapper) {
    this.containerWrapper = containerWrapper;
  }

  /**
   * 从后向前逐个注册。
   * 1. 终端target
   * 2. AOP
   * 3. BusinessProxy
   * 4. VisitorCache
   * 5. 面向客户端的ServiceAdapter
   */
  public void register() {
    registerTatgetService();

    registerAOPService();

    registerBusinessProxyService();

    //注册面向客户端调用的Service
    containerWrapper.register(SERVICE_NAME, DefaultServiceAdapter.class);

    registerXmlConfig();

  }

  private void registerXmlConfig(){
    try{
      containerWrapper.register(SERVICE_METALOADER_NAME, TargetMetaDefXmlLoader.class,
                                new Parameter[] {
        new ComponentParameter(CONFIG_NAME)
      });
    }catch(DuplicateComponentKeyRegistrationException de){

    }

  }


  public void registerTatgetService() {

    containerWrapper.register(TARGET_SERVICE, EJBTargetService.class);
    containerWrapper.register(METHOD_INVOKER, EJBMethodInvoker.class);

  }

  public void registerAOPService() {


    //整合拦截器
   ContainerWrapper child = containerWrapper.getChild(
        AopInterceptorRegistry.INTERCEPTORS_NAME);
    List inerceptors = child.getAllInstances();
    containerWrapper.register("inerceptors", inerceptors);
    containerWrapper.register("JoinpointFactory", JoinpointFactory.class,
                              new Parameter[] {
      new ComponentParameter("inerceptors"),
          new ComponentParameter(METHOD_INVOKER)
    });

    containerWrapper.register(AOP_CLIENT, AopClient.class);

  }

  public void registerBusinessProxyService() {

     //VisitableFactory
    containerWrapper.register(VISITABLEFACTORY_NAME, VisitableFactory.class);
    //注册VisitorFactory
    containerWrapper.register(VISIORFACTORY_NAME, VisitorFactory.class);

  }

}