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				package com.yihu.jw.message.service; 
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				import com.yihu.jw.entity.base.message.BaseMessageDO; 
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				import com.yihu.jw.message.dao.MessageDao; 
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				import com.yihu.mysql.query.BaseJpaService; 
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				import org.apache.commons.collections.map.HashedMap; 
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				import org.springframework.beans.factory.annotation.Autowired; 
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				import org.springframework.data.domain.Sort; 
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				import org.springframework.jdbc.core.JdbcTemplate; 
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				import org.springframework.stereotype.Service; 
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				import java.util.LinkedList; 
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				import java.util.List; 
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				import java.util.Map; 
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				/** 
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				 * @author liuwenbin on 2018/11/28. 
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				 */ 
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				@Service 
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				public class MessageService extends BaseJpaService<BaseMessageDO, MessageDao> { 
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				    @Autowired 
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				    private MessageDao messageDao; 
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				    @Autowired 
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				    private JdbcTemplate jdbcTemplate; 
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				    /** 
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				     * 消息列表 
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				     * @param platform 
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				     * @param code 
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				     * @param saasId 
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				     * @param page 
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				     * @param pageSize 
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				     * @return 
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				     */ 
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				    public List<Map<String,Object>> messageList(Integer platform,String code,String saasId,Integer page,Integer pageSize){ 
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				        if(page==null){ 
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				            page = 0; 
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				        }else if(page > 0) 
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				        { 
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				            page = page -1; 
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				        } 
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				        if (pageSize <= 0) { 
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				            pageSize = 10; 
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				        } 
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				        // 排序 
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				        Sort sort = new Sort(Sort.Direction.DESC, "createTime"); 
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				        // 分页信息 
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				        List<BaseMessageDO> applyList = messageDao.messageList(platform,code,saasId,"00%"); 
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				        Integer applyReadCount = messageDao.countMessage(platform,code,saasId,"00%"); 
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				        List<BaseMessageDO> systemList = messageDao.messageList(platform,code,saasId,"01%"); 
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				        Integer systemReadCount = messageDao.countMessage(platform,code,saasId,"01%"); 
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				        List<Map<String,Object>> resultList = new LinkedList<>(); 
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				        Map<String,Object> applyMap = new HashedMap(); 
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				        applyMap.put("name","应用消息"); 
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				        applyMap.put("count",applyReadCount); 
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				        applyMap.put("message",applyList.size()>0?applyList.get(0).getMsgContent():null); 
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				        resultList.add(applyMap); 
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				        Map<String,Object> systemMap = new HashedMap(); 
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				        systemMap.put("name","系统消息"); 
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				        systemMap.put("count",systemReadCount); 
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				        systemMap.put("message",systemList.size()>0?systemList.get(0).getMsgContent():null); 
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				        resultList.add(systemMap); 
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				        Integer unReadPageSize = pageSize; 
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				        if(page==0){ 
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				            unReadPageSize=unReadPageSize-2; 
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				        } 
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				        //1、未读消息(置顶) 
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				        List<Map<String, Object>> unReadResult = messageListSql(platform,code,saasId,0,page,unReadPageSize); 
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				        for(Map<String, Object> one:unReadResult){ 
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				            Map<String,Object> unReadMap = new HashedMap(); 
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				            unReadMap.put("name",one.get("sender_name")); 
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				            unReadMap.put("count",one.get("num")); 
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				            unReadMap.put("message",one.get("msg_content")); 
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				            resultList.add(unReadMap); 
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				        } 
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				        if(unReadResult.size()<unReadPageSize){ 
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				            page = messageCountSql(platform,code,saasId,1,page,pageSize); 
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				            //2、已读消息 
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				            List<Map<String, Object>> readResult = messageListSql(platform,code,saasId,1,page,unReadPageSize); 
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				            for(Map<String, Object> one:readResult){ 
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				                Map<String,Object> readMap = new HashedMap(); 
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				                readMap.put("name",one.get("sender_name")); 
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				                readMap.put("count",one.get("num")); 
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				                readMap.put("message",one.get("msg_content")); 
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				                resultList.add(readMap); 
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				            } 
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				        } 
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				        return resultList; 
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				    } 
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				    public BaseMessageDO create(BaseMessageDO messageDO){ 
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				        return messageDao.save(messageDO); 
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				    } 
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				    private List<Map<String, Object>> messageListSql(Integer platform,String code,String saasId,Integer readState,Integer page,Integer pageSize){ 
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				        String sql =" SELECT " + 
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				                " a.*, b.msg_content " + 
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				                " FROM " + 
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				                " ( " + 
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				                "  SELECT " + 
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				                "   m.sender, " + 
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				                "   m.sender_name, " + 
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				                "   count(*) as num, " + 
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				                "   max(m.create_time) AS create_time " + 
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				                "  FROM " + 
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				                "   base_message m " + 
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				                "  WHERE " + 
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				                "   m.platform = '"+platform+"' " + 
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				                "  AND m.receiver = '"+code+"' " + 
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				                "  AND m.saas_id = '"+saasId+"' " + 
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				                "  AND m.del = 1 " + 
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				                "  AND m.read_state = "+readState+" " + 
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				                "  GROUP BY " + 
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				                "   m.sender, " + 
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				                "   m.sender_name " + 
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				                "  LIMIT "+page+", " + 
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				                "  "+pageSize+" " + 
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				                " ) a " + 
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				                " LEFT JOIN base_message b ON a.sender = b.sender " + 
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				                " AND a.create_time = b.create_time " + 
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				                " AND b.platform = '"+platform+"' " + 
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				                " AND b.receiver = '"+code+"' " + 
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				                " AND b.saas_id = '"+saasId+"' " + 
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				                " AND b.del = 1 " + 
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				                " AND m.read_state = "+readState; 
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				        return jdbcTemplate.queryForList(sql); 
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				    } 
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				    private Integer messageCountSql(Integer platform,String code,String saasId,Integer readState,Integer page,Integer originalPageSize){ 
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				        String sql ="  SELECT count(*) as num " + 
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				                "  FROM " + 
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				                "   base_message m " + 
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				                "  WHERE " + 
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				                "   m.platform = '"+platform+"' " + 
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				                "  AND m.receiver = '"+code+"' " + 
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				                "  AND m.saas_id = '"+saasId+"' " + 
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				                "  AND m.del = 1 " + 
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				                "  AND m.read_state = "+readState+" " + 
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				                "  GROUP BY " + 
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				                "   m.sender, " + 
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				                "   m.sender_name " ; 
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				        Integer count  = jdbcTemplate.queryForObject(sql,Integer.class); 
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				        if(count<=(originalPageSize-2)){ 
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				            return page-1; 
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				        }else{ 
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				            Integer s = (count-(originalPageSize-2))/originalPageSize; 
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				            Integer y = (count-(originalPageSize-2))%originalPageSize; 
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				            if(y>0){ 
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				                return page-(s+2); 
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				            }else{ 
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				                return page-(s+1); 
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				            } 
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				        } 
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				    } 
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				} 
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