modelxmlconfig.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.model.config;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import com.jdon.container.config.app.AppConfigureCollection;
import com.jdon.container.pico.Startable;
import com.jdon.model.handler.HandlerClassFactory;
import com.jdon.model.mapping.ModelMapping;
import com.jdon.util.Debug;

/**
 * 根据modelmapping.xml生产相应的实例
 * 下面两个方法预先需要执行：
 * loadMapping(); //获取xml
 * createModelClass();//预先创建一些class
 *
 * ModelFactory是有状态的类。
 *
 * @author banq
 */
public final class ModelXmlConfig implements Startable {
  public final static String module = ModelXmlConfig.class.getName();

  private HandlerClassFactory handlerClassFactory;

  private Map configLoadedList = new HashMap();

  //formName 与ModelMapping对应关系
  private Map mps = new HashMap();

  //Model class 池
  private Map modelClasses = new HashMap();
  //Hanlder class池
  private Map handlerClasses = new HashMap();


  public ModelXmlConfig(AppConfigureCollection appConfigureFiles,
                        HandlerClassFactory handlerClassFactory) {
    this.handlerClassFactory = handlerClassFactory;
    Iterator iter = appConfigureFiles.getConfigList().iterator();
    while (iter.hasNext()) {
      String configFile = (String) iter.next();
      if (!configLoadedList.containsKey(configFile)) {
        ConfigureReader configureReader = new ConfigureReader(configFile);
        Debug.logVerbose("init configFile = " + configFile, module);
        configLoadedList.put(configFile, configureReader);
      }
    }
  }

  /**
   * 将所有的ConfigureLoader包含的内容合并在一起。
   * 本方法相当于start()
   * 参考 {@link #detroy()} method
   *
   */
 public void start() {
    try {
      Iterator iter = configLoadedList.keySet().iterator();
      while (iter.hasNext()) {
        String configFile = (String) iter.next();
        Debug.logVerbose(" start configFile = " + configFile, module);
        ConfigureReader configureLoader = (ConfigureReader)configLoadedList.get(configFile);
        Map xmlMaps = configureLoader.load();
        mps.putAll(xmlMaps);
        Iterator mpsIter = xmlMaps.keySet().iterator();
        while(mpsIter.hasNext()){
          String formName = (String)mpsIter.next();
          Debug.logVerbose(" start formName = " + formName , module);          
          ModelMapping mp = (ModelMapping)xmlMaps.get(formName);         
          modelClasses.put(formName, handlerClassFactory.createModel(mp));
          handlerClasses.put(formName, handlerClassFactory.createHandler(mp));
        }
      }
      configLoadedList.clear();
    } catch (Exception ex) {
      Debug.logError(" !!!!!!!framework started error: " + ex, module);
    }
  }

  /**
   * 清除内存
   */
  public void stop() {
    mps.clear();
    configLoadedList.clear();
    modelClasses.clear();
    handlerClasses.clear();
  }

  public ModelMapping getModelMapping(String formName) {
    return (ModelMapping) mps.get(formName);
  }

  

	
	/**
	 * @return Returns the handlerClasses.
	 */
	public Map getHandlerClasses() {
	    return handlerClasses;
	}
	
	/**
	 * @return Returns the modelClasses.
	 */
	public Map getModelClasses() {
	    return modelClasses;
	}
	
 

}