forumlabelserviceimpl.java

来自「社区文章采用的是平板、树形自由选择的两种展示方式」· Java 代码 · 共 113 行

/* 
 * Created on 2007-5-21
 * Last modified on 2008-1-1
 * Powered by YeQiangWei.com
 */
package com.yeqiangwei.club.service.forum;

import java.util.List;

import com.yeqiangwei.cache.Cache;
import com.yeqiangwei.club.cache.CacheRegion;
import com.yeqiangwei.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.model.ForumLabel;
import com.yeqiangwei.club.exception.ClubException;
import com.yeqiangwei.club.param.ForumParameter;
import com.yeqiangwei.club.util.MessageUtils;
import com.yeqiangwei.util.Validator;

public class ForumLabelServiceImpl  implements ForumLabelService{
	
	@SuppressWarnings("unchecked")
	public static Cache CACHE_LABEL = CacheFactory.creator(CacheRegion.FORUM_LABEL);

	public ForumLabel findById(int id) {
		return this.getForumLabelDAO().findById(id);
	}

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

	public void create(ForumLabel model) throws ClubException {
		if(Validator.isEmpty(model)
				||Validator.isEmpty(model.getLabelName())
				||model.getForumId()==0
		){
			throw new ClubException(MessageUtils.getMessage("error_empty"));
		}else{
			this.getForumLabelDAO().create(model);
			CACHE_LABEL.clear();
		}
	}

	public void update(ForumLabel 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{
			this.getForumLabelDAO().update(model);
			CACHE_LABEL.clear();
		}
	}

	public int delete(ForumLabel model) throws ClubException {
		CACHE_LABEL.clear();
		return this.getForumLabelDAO().delete(model);
	}
	
	public int update(int forumId, int toForumId) throws ClubException {
		if(forumId>0&&toForumId>0){
			CACHE_LABEL.clear();
			return this.getForumLabelDAO().update(forumId,toForumId);
		}else{
			return 0;
		}
	}
	
	@SuppressWarnings("unchecked")
	public List<ForumLabel> findByForumId(int forumId) {
		Boolean isput = (Boolean) CACHE_LABEL.get(cacheKey(forumId)+"-isput");
		List<ForumLabel> list = (List<ForumLabel>) CACHE_LABEL.get(cacheKey(forumId));
		if(Validator.isEmpty(list)&&Validator.isEmpty(isput)){
			ForumParameter param = new ForumParameter();
			param.setForumId(new Integer(forumId));
			list = this.findByParameter(param);
			CACHE_LABEL.put(cacheKey(forumId),list);
			CACHE_LABEL.put(cacheKey(forumId)+"-isput", new Boolean(true));
		}
		return list;
	}
	
	
	public List<ForumLabel> findByParameter(ForumParameter param) {
		return this.getForumLabelDAO().findByParameter(param); 
	}

	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();
	}

}