beanobjectentityconfig.java

来自「mysql集群」· Java 代码 · 共 130 行

/*
 * 	This program is free software; you can redistribute it and/or modify it under the terms of 
 * the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, 
 * or (at your option) any later version. 
 * 
 * 	This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU General Public License for more details. 
 * 	You should have received a copy of the GNU General Public License along with this program; 
 * if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package com.meidusa.amoeba.config;

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

import org.apache.log4j.Logger;

import com.meidusa.amoeba.bean.PureJavaReflectionProvider;
import com.meidusa.amoeba.util.Initialisable;
import com.meidusa.amoeba.util.InitialisationException;
import com.meidusa.amoeba.util.ObjectUtil;
import com.meidusa.amoeba.util.StringUtil;


/**
 * Bean 的基本配置信息
 * 
 * @author <a href=mailto:[e-mail]>Struct chen</a>
 * @version $Id: BeanObjectEntityConfig.java 3594 2006-11-23 07:39:25Z struct $
 */
public class BeanObjectEntityConfig extends ConfigEntity implements Cloneable{
	private static Logger logger = Logger.getLogger(BeanObjectEntityConfig.class);
	private static final long serialVersionUID = 1L;
	private String name;
	private String className;
	private Map<String,Object> params = new HashMap<String,Object>();
	private static PureJavaReflectionProvider reflectionProvider = new PureJavaReflectionProvider();
	public String getClassName() {
		return className;
	}
	public void setClassName(String beanObject) {
		this.className = beanObject;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	
	public Map<String,Object> getParams() {
		return params;
	}
	public void setParams(Map<String,Object> params) {
		this.params = params;
	}
	
	/**
	 * 用于clone，子类可覆盖此方法
	 * @return
	 */
	protected BeanObjectEntityConfig newObject(){
		Object object = null;
		try {
			object = this.getClass().newInstance();
		} catch (InstantiationException e) {
			logger.error("Instantiation class :"+ this.getClass()+" Exception",e);
		} catch (IllegalAccessException e) {
			logger.error("IllegalAccess class :"+ this.getClass()+" Exception",e);
		}
		return (BeanObjectEntityConfig)object;
	}
	
	public Object createBeanObject(boolean initEarly) throws ConfigurationException{
		try {
			Object object= reflectionProvider.newInstance(Class.forName(className));
			ParameterMapping.mappingObject(object, getParams());
			if(initEarly){
				if(object instanceof Initialisable){
					((Initialisable)object).init();
				}
			}
			return object;
		} catch (ClassNotFoundException e) {
			logger.error("instanceo object error:",e);
			throw new ConfigurationException(e);
		}catch (InitialisationException e){
			logger.error("instanceo object error:",e);
			throw new ConfigurationException(e);
		}
	}
	
	public Object clone(){
		BeanObjectEntityConfig entityConfig = newObject();
		
		if(entityConfig == null) {
			return null;
		}
		
		entityConfig.className = this.className;
		entityConfig.name = this.name;
		Map<String,Object> params = new HashMap<String,Object>();
		params.putAll(this.params);
		return entityConfig;
	}
	
	public int hashCode(){
		int hashcode = 37;
		hashcode += (this.name == null?0:name.hashCode());
		hashcode += (this.className == null?0:className.hashCode());
		hashcode += (this.params == null?0:params.hashCode());
		return hashcode;
	}
	
	public boolean equals(Object object){
		if(object instanceof BeanObjectEntityConfig){
			BeanObjectEntityConfig entity = (BeanObjectEntityConfig)object;
			boolean isEquals = StringUtil.equals(this.name,entity.name);
			isEquals = isEquals && StringUtil.equals(this.className,entity.getClassName());
			isEquals = isEquals && (ObjectUtil.equals(this.params,entity.params));
			
			return isEquals;
		}
		return false;
	}
	
	
}