GpsRealAnalyse.java
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package com.bsth.data.gpsdata.arrival;
import com.bsth.data.gpsdata.GpsEntity;
import com.bsth.data.gpsdata.GpsRealData;
import com.bsth.data.gpsdata.arrival.handlers.*;
import com.bsth.data.gpsdata.arrival.utils.CircleQueue;
import com.bsth.data.gpsdata.recovery.GpsDataRecovery;
import com.google.common.collect.ArrayListMultimap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.util.*;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* gps 实时数据分析
* Created by panzhao on 2016/12/27.
*/
@Component
public class GpsRealAnalyse {
static Logger logger = LoggerFactory.getLogger(GpsRealAnalyse.class);
@Autowired
OfflineSignalHandle offlineSignalHandle;
@Autowired
CorrectSignalHandle correctSignalHandle;
@Autowired
StationInsideHandle stationInsideHandle;
@Autowired
InOutStationSignalHandle inOutStationSignalHandle;
@Autowired
ReverseSignalHandle reverseSignalHandle;
@Autowired
AbnormalStateHandle abnormalStateHandle;
@Autowired
GpsRealData gpsRealData;
final static int POOL_SIZE = 25;
static ExecutorService threadPool = Executors.newFixedThreadPool(POOL_SIZE + 1);
public static long st;
public static CountDownLatch count;
public static boolean isBlock() {
return System.currentTimeMillis() - st > 1000 * 20;
}
public static boolean isIdle(){
return System.currentTimeMillis() - st > 1000 * 60;
}
public void analyse(List<GpsEntity> list) {
try {
if(list.size() == 0 || GpsDataRecovery.run)
return;
st = System.currentTimeMillis();
//按设备号分组数据（一个设备号的多条数据，必须在一个线程里跑）
ArrayListMultimap multimap = ArrayListMultimap.create();
for (GpsEntity gps : list) {
multimap.put(gps.getDeviceId(), gps);
}
List<String> deviceList = new ArrayList<>(multimap.keySet());
//数据均分给线程
ArrayListMultimap dataListMap = ArrayListMultimap.create();
int size = deviceList.size(), threadIndex=0, threadSize = size / POOL_SIZE;
for(int i = 0; i < size; i++){
if(i % threadSize == 0)
threadIndex ++;
dataListMap.putAll(threadIndex, multimap.get(deviceList.get(i)));
}
Set<Integer> ks = dataListMap.keySet();
logger.info("analyse gps size: " + list.size() + ", ks: " + ks.size());
count = new CountDownLatch(ks.size());
for (Integer index : ks) {
threadPool.execute(new SignalHandleThread(dataListMap.get(index), count));
}
//等待子线程结束
count.await();
//加入实时gps对照
for (GpsEntity gps : list)
gpsRealData.put(gps);
logger.info("time , " + (System.currentTimeMillis() - st));
} catch (Exception e) {
logger.error("", e);
}
}
public static void shutdown() {
logger.warn("GpsRealAnalyse shutdown！！");
threadPool.shutdownNow();
long len = count.getCount();
for (int i = 0; i < len; i++) {
count.countDown();
}
threadPool = Executors.newFixedThreadPool(100);
}
static GpsComp comp = new GpsComp();
public class SignalHandleThread implements Runnable {
List<GpsEntity> list;
CountDownLatch count;
SignalHandleThread(List<GpsEntity> gpsList, CountDownLatch count) {
this.list = gpsList;
this.count = count;
}
@Override
public void run() {
try {
Collections.sort(list, comp);
for (GpsEntity gps : list) {
try {
//是否有任务
boolean task;
CircleQueue<GpsEntity> prevs = GeoCacheData.getGps(gps.getNbbm());
//掉线处理
offlineSignalHandle.handle(gps, prevs);
//状态处理
task = correctSignalHandle.handle(gps, prevs);
//场，站内外判断
stationInsideHandle.handle(gps, prevs);
//异常判定（越界/超速）
abnormalStateHandle.handle(gps, prevs);
if (!task)
continue; //无任务的，到这里就结束
//反向处理
reverseSignalHandle.handle(gps, prevs);
//进出站动作处理
inOutStationSignalHandle.handle(gps, prevs);
GeoCacheData.putGps(gps);
}catch (Exception e){
logger.error("", e);
}
}
} finally {
if (count != null)
count.countDown();
}
}
}
public static class GpsComp implements Comparator<GpsEntity> {
@Override
public int compare(GpsEntity g1, GpsEntity g2) {
return g1.getTimestamp().compareTo(g2.getTimestamp());
}
}
}