BusinessService.java

package com.hp.cmsz.service;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import com.hp.cmsz.entity.Business;
import com.hp.cmsz.repository.BusinessDao;
/**
 * 
 * @author Liu Ying
 *
 */
//Spring Bean的标识.
@Component
//默认将类中的所有public函数纳入事务管理.
@Transactional(readOnly = true)
public class BusinessService {

	@Autowired
	private BusinessDao businessDao;
	
	//获取所有的业务
	public List<Business> getAllBusiness(){
		return (List<Business>) businessDao.findAll();
	}
	
	public List<Business> getByChannelDataSourceMapIdIn(List<Long> channelDataSourceMapIdList){
		
		
		 return (List<Business>)businessDao.findByChannelDataSourceMapIdIn(channelDataSourceMapIdList); 
	 }
	
	public List<String> getAllBusinessIdAndBusinessName(){
		List<Object[]> list = businessDao.findAllBusinessIdAndBusinessName();
		List<String> businessList = new ArrayList<String>();
		
		for(int i=0;i<list.size();i++){
			Object[] obj1 = list.get(i);
			for(int j=0;j<list.size();j++){
				if(j!=i){
					Object[] obj2 = list.get(j);
					if(obj1[1].equals(obj2[1])){
						obj1[0] = obj1[0]+","+obj2[0];
						list.remove(j);
						j--;
					}
				}
			}
			businessList.add(obj1[0].toString());
			businessList.add(obj1[1].toString());
		}
		return businessList;
	}

	public List<String> getBusinessIdAndBusinessName(){
		List<Object[]> list = businessDao.findBusiness();
		List<String> businessList = new ArrayList<String>();

		for(int i=0;i<list.size();i++){
			Object[] obj1 = list.get(i);
			for(int j=0;j<list.size();j++){
				if(j!=i){
					Object[] obj2 = list.get(j);
					if(obj1[1].equals(obj2[1])){
						obj1[0] = obj1[0]+","+obj2[0];
						list.remove(j);
						j--;
					}
				}
			}
			businessList.add(obj1[0].toString());
			businessList.add(obj1[1].toString());
		}
		return businessList;
	}
	
	public List<String> getBusinessByChannelName(String channelName){
		List<Object[]> list = businessDao.findBusinessByChannelName(channelName);
		List<String> businessList = new ArrayList<String>();
		
		for(int i=0;i<list.size();i++){
			Object[] obj1 = list.get(i);
			for(int j=0;j<list.size();j++){
				if(j!=i){
					Object[] obj2 = list.get(j);
					if(obj1[1].equals(obj2[1])){
						obj1[0] = obj1[0]+","+obj2[0];
						list.remove(j);
						j--;
					}
				}
			}
			businessList.add(obj1[0].toString());
			businessList.add(obj1[1].toString());
		}
		return businessList;
	}
	
	//由业务ID得到去重的业务名称
	public String getBusinessNameByBusinessId(List<Long> businessIds){
		List<Business> businessList = businessDao.findByBusinessIdIn(businessIds);
		List<String> businessLists = new ArrayList<String>();
		String businessNames = "";
		for(int i=0;i<businessList.size();i++){
			businessLists.add(businessList.get(i).getBusinessName());
		}
		List<String> listTemp = new ArrayList<String>();
		Iterator<String> it = businessLists.iterator();
		while(it.hasNext()){
			String business = it.next();
			if(listTemp.contains(business)){
				it.remove();
			}else{
				listTemp.add(business);
			}
		}
		for(int j=0;j<listTemp.size();j++){
			if(j==listTemp.size()-1){
				businessNames += listTemp.get(j);
			}else{
				businessNames += listTemp.get(j)+" ";
			}
		}
		return businessNames;
	}
	
	
}