GeoCacheData.java
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package com.bsth.data.gpsdata.analyse;
import com.bsth.data.gpsdata.GpsEntity;
import com.google.common.collect.ArrayListMultimap;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.Polygon;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Component;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.*;
/**
* Created by panzhao on 2016/12/23.
*/
@Component
public class GeoCacheData {
static Logger logger = LoggerFactory.getLogger(GeoCacheData.class);
//每辆车缓存最后200条gps
private static final int CACHE_SIZE = 200;
private static Map<String, CircleQueue<GpsEntity>> gpsCacheMap = new HashMap<>();
//线路路段走向
private static ArrayListMultimap<String, LineString> sectionCacheMap;
//线路站点路由
private static ArrayListMultimap<String, StationRoute> stationCacheMap;
//停车场
public static Map<String, Polygon> tccMap;
@Autowired
JdbcTemplate jdbcTemplate;
public static CircleQueue<GpsEntity> getGps(String nbbm) {
return gpsCacheMap.get(nbbm);
}
public static void putGps(GpsEntity gps) {
CircleQueue<GpsEntity> queue = gpsCacheMap.get(gps.getNbbm());
if (queue == null) {
//第一个点从站内开始
if(!gps.isInstation())
return;
queue = new CircleQueue<>(CACHE_SIZE);
gpsCacheMap.put(gps.getNbbm(), queue);
}
queue.add(gps);
}
public static List<StationRoute> getStationRoute(String lineCode, int directions) {
return stationCacheMap.get(lineCode + "_" + directions);
}
public static StationRoute getStation(String lineCode, int directions, String code) {
List<StationRoute> list = getStationRoute(lineCode, directions);
for (StationRoute sr : list) {
if (sr.getCode().equals(code)) {
return sr;
}
}
return null;
}
public static Polygon getTccPolygon(String code){
return tccMap.get(code);
}
public void loadData() {
final GeometryFactory geometryFactory = new GeometryFactory();
//加载站点路由
String sql = "select r.LINE_CODE,r.DIRECTIONS,r.STATION_CODE,r.STATION_MARK,s.SHAPES_TYPE,s.G_LONX,s.G_LATY,ST_AsText(s.G_POLYGON_GRID) as G_POLYGON_GRID,s.RADIUS, r.STATION_ROUTE_CODE from bsth_c_stationroute r left join bsth_c_station s on r.station=s.id where r.destroy=0 order by r.station_route_code";
List<StationRoute> routeList = jdbcTemplate.query(sql, new RowMapper<StationRoute>() {
@Override
public StationRoute mapRow(ResultSet rs, int rowNum) throws SQLException {
StationRoute sRoute = new StationRoute();
sRoute.setCode(rs.getString("STATION_CODE"));
sRoute.setLineCode(rs.getString("LINE_CODE"));
sRoute.setDirections(rs.getInt("DIRECTIONS"));
sRoute.setPoint(geometryFactory.createPoint(new Coordinate(rs.getFloat("G_LATY"), rs.getFloat("G_LONX"))));
sRoute.setRadius(rs.getFloat("RADIUS"));
sRoute.setRouteSort(rs.getInt("STATION_ROUTE_CODE"));
sRoute.setMark(rs.getString("STATION_MARK"));
String shapesType = rs.getString("SHAPES_TYPE");
//多边形电子围栏
if (StringUtils.isNotEmpty(shapesType) && shapesType.equals("d")) {
geometryFactory.createPolygon(parsePolygon(rs.getString("G_POLYGON_GRID")));
}
return sRoute;
}
});
//按线路和走向分组
if (routeList.size() > 0) {
ArrayListMultimap<String, StationRoute> tempMap = ArrayListMultimap.create();
for (StationRoute sr : routeList) {
tempMap.put(sr.getLineCode() + "_" + sr.getDirections(), sr);
}
StationRouteComp srCom = new StationRouteComp();
//连接路由
Set<String> set = tempMap.keySet();
for (String key : set) {
Collections.sort(tempMap.get(key), srCom);
connectStationRoute(tempMap.get(key));
}
stationCacheMap = tempMap;
}
//加载停车场数据
sql = "select PARK_CODE, ST_AsText(G_PARK_POINT) as G_PARK_POINT from bsth_c_car_park where park_code is not null and b_park_point is not null";
List<Map<String, Object>> tccList = jdbcTemplate.queryForList(sql);
Map<String, Polygon> tccTempMap = new HashMap<>();
Polygon polygon;
for (Map<String, Object> tMap : tccList) {
try {
polygon = geometryFactory.createPolygon(parsePolygon(tMap.get("G_PARK_POINT").toString()));
tccTempMap.put(tMap.get("PARK_CODE").toString()
, polygon);
} catch (Exception e) {
logger.error("停车场：" + tMap.get("PARK_CODE") , e);
}
}
if(tccTempMap.size() > 0)
tccMap = tccTempMap;
}
private void connectStationRoute(List<StationRoute> list) {
int size = list.size();
StationRoute sr = null;
for (int i = 0; i < size; i++) {
sr = list.get(i);
//上一个
if (i > 0)
sr.setPrve(list.get(i - 1));
//下一个
if (i < size - 1)
sr.setNext(list.get(i + 1));
}
}
public Coordinate[] parsePolygon(String polygonStr) {
String[] coords = polygonStr.substring(9, polygonStr.length() - 2).split(","), temps;
Coordinate[] cds = new Coordinate[coords.length];
int len = coords.length;
for (int i = 0; i < len; i++) {
temps = coords[i].split(" ");
cds[i] = new Coordinate(Float.parseFloat(temps[1]), Float.parseFloat(temps[0]));
}
return cds;
}
}