targetmetadefxmlloader.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.config;

import java.util.*;

import com.jdon.bussinessproxy.*;
import com.jdon.controller.config.*;
import com.jdon.util.*;


/**
 * 从配置文件中获得EJB Service 和POJO Service
 * 并这些Service保存到metaDefs中。
 * PojoService有两种方式：
 * (1) 以Meta形式保存（可实现AOP 拦截），待实现
 * (2) 以单例注册直接注册到微容器中
 * (3) 以对象池形式直接注册到微容器中,待实现
 * 本类是注册到微容器中
 *
 * <p>Copyright: Jdon.com Copyright (c) 2005</p>
 * <p></p>
 * @author banq
 * @version JdonFramework 2005 v1.0
 */
public class TargetMetaDefXmlLoader implements org.picocontainer.Startable,
    TargetMetaDefLoader {

  private final static String module = TargetMetaDefXmlLoader.class.getName();
  private Collection configList;

  /**
   * 以ejbName为key, EJBTargetMetaDef为value
   */
  private Map metaDefs = new HashMap();
  private Map pojoClasses = new HashMap();

  public TargetMetaDefXmlLoader() {
    configList = new ArrayList();
  }

  public TargetMetaDefXmlLoader(Collection configList) {
   this.configList = configList;
 }

  public TargetMetaDef getTargetMetaDef(String name){
    return (TargetMetaDef)metaDefs.get(name);
  }

  public void start() {
    Debug.logVerbose("EJBDefinitionLoader start .....", module);
    XmlParser xmlParser = new XmlParser();
    Iterator iter = configList.iterator();
    while (iter.hasNext()) {
      String configFileName = (String) iter.next();
      Map mps = xmlParser.parseServices(configFileName);
      metaDefs.putAll(mps);
      Map pojoMps = xmlParser.parsePOJOServices(configFileName);
      pojoClasses.putAll(pojoMps);
    }
  }



  public void stop() {
    metaDefs.clear();
    configList = null;
  }

  public Map getMetaDefs() {
    return metaDefs;
  }

  public Map getPojoClasses() {
    return pojoClasses;
  }

  public void setMetaDefs(Map metaDefs) {
    this.metaDefs = metaDefs;
  }

  public void setPojoClasses(Map pojoClasses) {
    this.pojoClasses = pojoClasses;
  }

}