forumlabelserviceimpl.java

野蔷薇论坛源码 java 自己看看吧。 学习用

/* 
 * Created on 2007-5-21
 * Last modified on 2007-11-3
 * Powered by YeQiangWei.com
 */
package com.yeqiangwei.club.service.forum;

import java.util.List;

import com.yeqiangwei.club.cache.Cache;
import com.yeqiangwei.club.cache.singleton.CacheFactory;
import com.yeqiangwei.club.dao.DAOLocator;
import com.yeqiangwei.club.dao.DAOWrapper;
import com.yeqiangwei.club.dao.ForumLabelDAO;
import com.yeqiangwei.club.dao.model.ForumLabel;
import com.yeqiangwei.club.exception.ClubException;
import com.yeqiangwei.club.exception.DAOException;
import com.yeqiangwei.club.param.ForumParameter;
import com.yeqiangwei.club.service.model.ForumLabelModel;
import com.yeqiangwei.club.util.BeanLocator;
import com.yeqiangwei.club.util.BeanUtils;
import com.yeqiangwei.club.util.MessageUtils;
import com.yeqiangwei.util.Validator;

public class ForumLabelServiceImpl  implements ForumLabelService{
	
	public static Cache labelCache = CacheFactory.creator("ForumLabel");

	public ForumLabelModel findById(int id) {
		ForumLabelModel model = null;
		ForumLabel item = this.getForumLabelDAO().findById(id);
		if(!Validator.isEmpty(item)){
			model = new ForumLabelModel();
			BeanUtils.copyProperties(model,item);
		}
		return model;
	}

	public void createOrUpdate(ForumLabelModel model) throws ClubException {
		if(model.getLabelId()>0){
			this.update(model);
		}else{
			this.create(model);
		}
	}

	public void create(ForumLabelModel model) throws ClubException {
		if(Validator.isEmpty(model)
				||Validator.isEmpty(model.getLabelName())
				||model.getForumId()==0
		){
			throw new ClubException(MessageUtils.getMessage("error_empty"));
		}else{
			ForumLabel item = new ForumLabel();
			BeanUtils.copyProperties(item,model);
			try {
				this.getForumLabelDAO().create(item);
				labelCache.clear();
				model.setLabelId(item.getLabelId());
			} catch (DAOException e) {
				throw new ClubException(e.getMessage());
			}
		}
	}

	public void update(ForumLabelModel model) throws ClubException {
		if(Validator.isEmpty(model)
				||Validator.isEmpty(model.getLabelName())
				||model.getForumId()==0
				||model.getLabelId()==0
		){
			throw new ClubException(MessageUtils.getMessage("error_empty"));
		}else{
			ForumLabel item = new ForumLabel();
			BeanUtils.copyProperties(item,model);
			try {
				this.getForumLabelDAO().update(item);
			} catch (DAOException e) {
				throw new ClubException(e.getMessage());
			}
			labelCache.clear();
		}
	}

	public int delete(ForumLabelModel model) throws ClubException {
		ForumLabel item = new ForumLabel();
		item.setLabelId(model.getLabelId());
		labelCache.clear();
		try {
			return this.getForumLabelDAO().delete(item);
		} catch (DAOException e) {
			throw new ClubException(e.getMessage());
		}
	}
	
	public int update(int forumId, int toForumId) throws ClubException {
		if(forumId>0&&toForumId>0){
			labelCache.clear();
			try {
				return this.getForumLabelDAO().update(forumId,toForumId);
			} catch (DAOException e) {
				throw new ClubException(e.getMessage());
			}
		}else{
			return 0;
		}
	}
	
	@SuppressWarnings("unchecked")
	public List<ForumLabelModel> findByForumId(int forumId) {
		Boolean isput = (Boolean) labelCache.get(cacheKey(forumId)+"-isput");
		List<ForumLabelModel> list = (List<ForumLabelModel>) labelCache.get(cacheKey(forumId));
		if(Validator.isEmpty(list)&&Validator.isEmpty(isput)){
			ForumParameter param = new ForumParameter();
			param.setForumId(new Integer(forumId));
			list = this.findByParameter(param);
			labelCache.put(cacheKey(forumId),list);
			labelCache.put(cacheKey(forumId)+"-isput", new Boolean(true));
		}
		return list;
	}
	
	
	public List<ForumLabelModel> findByParameter(ForumParameter param) {
		List<ForumLabel> list = this.getForumLabelDAO().findByParameter(param); 
		List<ForumLabelModel> mlist = BeanUtils.<ForumLabel,ForumLabelModel>copyList(list,BeanLocator.FORUMLABELMODEL);
		return mlist;
	}

	public long countByParameter(ForumParameter param) {
		return 0;
	}

	
	private ForumLabelDAO getForumLabelDAO(){
		return DAOWrapper.<ForumLabelDAO>getSingletonInstance(DAOLocator.FORUMLABEL);
	}

	public String cacheKey(int forumId){
		StringBuffer sb = new StringBuffer("ForumLabel：");
		sb.append(forumId);
		return sb.toString();
	}

}