SignalHandle.java
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package com.bsth.data.gpsdata.arrival;
import com.bsth.data.gpsdata.GpsEntity;
import com.bsth.data.gpsdata.arrival.utils.CircleQueue;
/**
* Created by panzhao on 2016/12/27.
*/
public abstract class SignalHandle {
public abstract boolean handle(GpsEntity gps, CircleQueue<GpsEntity> prevs);
protected boolean isNotEmpty(CircleQueue<GpsEntity> prevs) {
return prevs != null && prevs.size() > 0 && prevs.getTail() != null;
}
/**
* 是不是异常信号
*
* @param gps
* @return
*/
protected boolean isAbnormal(GpsEntity gps) {
return gps.getLat() == 0 || gps.getLon() == 0;
}
/**
* 连续异常信号个数统计
*
* @param prevs
* @return
*/
protected int abnormalCount(CircleQueue<GpsEntity> prevs) {
int count = 0;
if (!isNotEmpty(prevs))
return count;
GpsEntity[] array = (GpsEntity[]) prevs.getQueue();
GpsEntity gps;
for (int i = array.length - 1; i > 0; i--) {
gps = array[i];
if (isAbnormal(gps))
count++;
else
break;
}
return count;
}
/**
* 车辆运行轨迹（最近20分钟）
* 0：上行 1：下行 -1：未知
*
* @param gps
* @return
*/
protected int runTrack(GpsEntity gps, CircleQueue<GpsEntity> prevs) {
int rs = -1, count = 0;
long et = gps.getTimestamp() - (1000 * 60 * 20);
Object[] array = prevs.getQueue();
GpsEntity prev;
for(Object obj : array){
prev = (GpsEntity) obj;
if(prev.getTimestamp() < et)
break;
}
//for()
return 0;
}
}