潘钊 / bsth_control · Files

package com.bsth.vehicle.gpsdata.buffer;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import com.bsth.entity.realcontrol.ScheduleRealInfo;
import com.bsth.service.realcontrol.buffer.ScheduleBuffer;
import com.bsth.vehicle.common.CommonMapped;
import com.bsth.vehicle.gpsdata.entity.GpsRealData;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ListMultimap;

/**
 * 
 * @ClassName: GpsRealDataBuffer 
 * @Description: TODO(GPS 实时数据缓存) 
 * @author PanZhao
 * @date 2016年5月11日 下午4:31:29 
 *
 */
@Component
public class GpsRealDataBuffer {
	
	private Logger logger = LoggerFactory.getLogger(this.getClass());
	
	/**
	 * 线路和GPS对照
	 *（K: 线路编码 ，V：GpsRealData）
	 */
	private static ListMultimap<Integer, GpsRealData> lineGpsMultimap;
	
	/**
	 * 设备和GPS对照
	 *（K: 设备编码 ，V：GpsRealData）
	 */
	private static Map<String, GpsRealData> deviceGpsMap;
	
	/**
	 * 最后同步时间
	 */
	private static Long lastUpdateTime;
	
	/**
	 * 10分钟没有信号则认为掉线
	 */
	public final static long OFFLINE_TIME = 1000 * 60 * 10;
	
	
	public boolean isNullEmpty(){
		return deviceGpsMap == null;
	}
	
	static{
		lineGpsMultimap = ArrayListMultimap.create();
	}
	
	/**
	 * 
	 * @Title: initBuffer 
	 * @Description: TODO(初始化缓存) 
	 * @throws
	 */
	public void initBuffer(List<GpsRealData> list){
		lineGpsMultimap = ArrayListMultimap.create();
		deviceGpsMap = new HashMap<>();
		
		for(GpsRealData gpsData : list){
			lineGpsMultimap.put(gpsData.getLineId(), gpsData);
			deviceGpsMap.put(gpsData.getDeviceId(), gpsData);
		}
		logger.info("init gps buffer gps! list size: " + list.size());
	}
	
	public void putLineMultimap(String lineCode, GpsRealData gpsData){
		
	}
	
	public void putDeviceGpsMap(String deviceId, GpsRealData gpsData){
		deviceGpsMap.put(deviceId, gpsData);
	}
	

	/**
	 * 
	 * @Title: updateBuffer 
	 * @Description: TODO(更新缓存) 
	 * @param @param upLines 需要更新映射的线路
	 * @param @param upGpsList 有更新的GPS信号
	 * @throws
	 */
	public void updateBuffer(Set<Integer> upLines, List<GpsRealData> upGpsList){
		long t = System.currentTimeMillis();
		
		//更新GPS点
		for(GpsRealData newGps : upGpsList){
			if(t - newGps.getTimestamp() < OFFLINE_TIME){
				logger.info("设备：" + newGps.getDeviceId() + " 上线");
				newGps.setOnline(true);
			}
				
			deviceGpsMap.put(newGps.getDeviceId(), newGps);
		}
		
		Iterator<GpsRealData> iterator = deviceGpsMap.values().iterator();
		
		//重新按线路划分
		lineGpsMultimap.clear();
		GpsRealData gpsdata;
		while(iterator.hasNext()){
			gpsdata = iterator.next();
			lineGpsMultimap.put(gpsdata.getLineId(), gpsdata);
		}
		//logger.info("update gps buffer over! new gps list size: " + upGpsList.size() + "  - lineGpsMultimap size: " + lineGpsMultimap.size());
	}
	
	/**
	 * 
	 * @Title: getDeviceGpsMap 
	 * @Description: TODO(获取设备号 ——> 实时GPS对照) 
	 * @return ImmutableMap<String,GpsRealData> 不可变的对照表 
	 * @throws
	 */
	public ImmutableMap<String, GpsRealData> getDeviceGpsMap(){
		return ImmutableMap.copyOf(deviceGpsMap);
	}
	
	/**
	 * 
	 * @Title: getListByLineCode 
	 * @Description: TODO(根据线路编码获取该线路所有的GPS点) 
	 * @return List<GpsRealData>    返回类型 
	 * @throws
	 */
	public List<GpsRealData> getListByLineCode(Integer lineCode){
		List<GpsRealData> list = lineGpsMultimap.get(lineCode)
					,resList = new ArrayList<>();
		
		//写入车辆自编号
		String nbbm;
		ScheduleRealInfo current, next;
		for(GpsRealData gpsData : list){
			nbbm = CommonMapped.vehicDeviceBiMap.get(gpsData.getDeviceId());
			if(null != nbbm){
				gpsData.setNbbm(nbbm);
				gpsData.setStationName(CommonMapped.stationCodeMap.get(gpsData.getStopNo()));
				
				current = ScheduleBuffer.findCurrent(nbbm);
				
				if(null != current){
					gpsData.setCurrSchId(current.getId());
					
					next = ScheduleBuffer.getNext(current);
					if(next != null)
						gpsData.setNextSchId(next.getId());
					
				}
				/*if(null == current){
					next = ScheduleBuffer.getFirst(nbbm);
				}
				else
					next = ScheduleBuffer.getNext(current);*/
				
				/*if(current != null)
					gpsData.setCurrSchId(current.getId());
				if(next != null)
					gpsData.setNextSchId(next.getId());*/
				//gpsData.setCurrSchId(ScheduleBuffer.findCurrent(nbbm));
				/*subList = ScheduleBuffer.vehSchListMap.get(nbbm);
				if(subList.size() == 0)
					continue;*/
				
				
				/*linkedList = ScheduleBuffer.vehLinkedMap.get(nbbm);
				if(null != linkedList){
					//为GPS点附加班次信息
					size = linkedList.size();
					if(size > 0)
						gpsData.setCurrSchId(linkedList.peekFirst().getId());
					if(size > 1)
						gpsData.setNextSchId(linkedList.get(1).getId());
				}*/
				resList.add(gpsData);
			}
		}
		return resList;
	}
	
	/**
	 * 
	 * @Title: getListByLineCode 
	 * @Description: TODO(根据多个线路编码获取该线路所有的GPS点) 
	 * @return List<GpsRealData>    返回类型 
	 * @throws
	 */
	public List<GpsRealData> getListByLines(Iterator<String> iterator){
		
		List<GpsRealData> list = new ArrayList<>();
		
		Integer code;
		while(iterator.hasNext()){
			code = Integer.parseInt(iterator.next());
			list.addAll(getListByLineCode(code));
		}
		
		return list;
	}
	
	public GpsRealData findOneByDeviceId(String deviceId){
		return deviceGpsMap.get(deviceId);
	}
	
	
	public void setLastUpdateTime(Long time){
		lastUpdateTime = time;
	}
	
	public Long getLastUpdateTime(){
		return lastUpdateTime;
	}
	
	public static Collection<GpsRealData> allGps(){
		return lineGpsMultimap.values();
	}
	
	public static GpsRealData findByDeviceId(String deviceId){
		return deviceGpsMap.get(deviceId);
	}
}