Examples with GraphHopper com.graphhopper.GraphHopper used on opensource projects

Example 61 with GraphHopper

use of com.graphhopper.GraphHopper in project graphhopper by graphhopper.

the class ChangeGraphServlet method doPost.

@Override
protected void doPost(HttpServletRequest httpReq, HttpServletResponse httpRes) throws ServletException, IOException {
    String infoStr = httpReq.getRemoteAddr() + " " + httpReq.getPathInfo() + " " + httpReq.getQueryString();
    float took = -1;
    StopWatch sw = new StopWatch().start();
    try {
        JsonFeatureCollection collection = ghJson.fromJson(new InputStreamReader(httpReq.getInputStream(), Helper.UTF_CS), JsonFeatureCollection.class);
        // TODO put changeGraph on GraphHopperAPI interface and remove cast (or some other solution)
        if (!(graphHopper instanceof GraphHopper)) {
            throw new IllegalStateException("Graph change API not supported with public transit.");
        }
        // TODO make asynchronous!
        ChangeGraphResponse rsp = ((GraphHopper) graphHopper).changeGraph(collection.getFeatures());
        ObjectNode resObject = objectMapper.createObjectNode();
        resObject.put("updates", rsp.getUpdateCount());
        // prepare the consumer to get some changes not immediately when returning after POST
        resObject.put("scheduled_updates", 0);
        httpRes.setHeader("X-GH-Took", "" + Math.round(took * 1000));
        writeJson(httpReq, httpRes, resObject);
        took = sw.stop().getSeconds();
        logger.info(infoStr + " " + took);
    } catch (IllegalArgumentException ex) {
        took = sw.stop().getSeconds();
        logger.warn(infoStr + " " + took + ", " + ex.getMessage());
        writeError(httpRes, 400, "Wrong arguments for endpoint /change, " + infoStr);
    } catch (Exception ex) {
        took = sw.stop().getSeconds();
        logger.error(infoStr + " " + took, ex);
        writeError(httpRes, 500, "Error at endpoint /change, " + infoStr);
    }
}

Example 62 with GraphHopper

use of com.graphhopper.GraphHopper in project graphhopper by graphhopper.

the class RoutingAlgorithmIT method testPerformance.

@Test
public void testPerformance() throws IOException {
    int N = 10;
    int noJvmWarming = N / 4;
    Random rand = new Random(0);
    final EncodingManager eManager = new EncodingManager("car");
    final GraphHopperStorage graph = new GraphBuilder(eManager).create();
    String bigFile = "10000EWD.txt.gz";
    new PrincetonReader(graph).setStream(new GZIPInputStream(PrincetonReader.class.getResourceAsStream(bigFile))).read();
    GraphHopper hopper = new GraphHopper() {

        {
            setCHEnabled(false);
            setEncodingManager(eManager);
            loadGraph(graph);
        }

        @Override
        protected LocationIndex createLocationIndex(Directory dir) {
            return new LocationIndexTree(graph, dir);
        }
    };
    Collection<AlgoHelperEntry> prepares = createAlgos(hopper, new HintsMap().setWeighting("shortest").setVehicle("car"), TraversalMode.NODE_BASED);
    for (AlgoHelperEntry entry : prepares) {
        StopWatch sw = new StopWatch();
        for (int i = 0; i < N; i++) {
            int node1 = Math.abs(rand.nextInt(graph.getNodes()));
            int node2 = Math.abs(rand.nextInt(graph.getNodes()));
            RoutingAlgorithm d = entry.createRoutingFactory().createAlgo(graph, entry.getAlgorithmOptions());
            if (i >= noJvmWarming)
                sw.start();
            Path p = d.calcPath(node1, node2);
            // avoid jvm optimization => call p.distance
            if (i >= noJvmWarming && p.getDistance() > -1)
                sw.stop();
        // System.out.println("#" + i + " " + name + ":" + sw.getSeconds() + " " + p.nodes());
        }
        float perRun = sw.stop().getSeconds() / ((float) (N - noJvmWarming));
        System.out.println("# " + getClass().getSimpleName() + " " + entry + ":" + sw.stop().getSeconds() + ", per run:" + perRun);
        assertTrue("speed to low!? " + perRun + " per run", perRun < 0.08);
    }
}

Example 63 with GraphHopper

use of com.graphhopper.GraphHopper in project graphhopper by graphhopper.

the class GraphHopperLandmarksIT method testLandmarkDisconnect.

@Test
public void testLandmarkDisconnect() throws Exception {
    // if one algorithm is disabled then the following chain is executed: CH -> LM -> flexible
    // disconnected for landmarks
    JsonNode json = query("point=55.99022,29.129734&point=56.007787,29.208355&ch.disable=true", 400);
    JsonNode errorJson = json.get("message");
    assertTrue(errorJson.toString(), errorJson.toString().contains("Different subnetworks"));
    // without landmarks it should work
    GraphHopper hopper = getInstance(GraphHopper.class);
    hopper.getLMFactoryDecorator().setDisablingAllowed(true);
    json = query("point=55.99022,29.129734&point=56.007787,29.208355&ch.disable=true&lm.disable=true", 200);
    JsonNode path = json.get("paths").get(0);
    double distance = path.get("distance").asDouble();
    assertEquals("distance wasn't correct:" + distance, 5790, distance, 100);
    hopper.getLMFactoryDecorator().setDisablingAllowed(false);
}

Example 64 with GraphHopper

use of com.graphhopper.GraphHopper in project massim by agentcontest.

the class GraphHopperManager method init.

/**
 * Creates a new GraphHopper for the given map name.
 * @param newMapName the name of the map to load
 */
public static void init(String newMapName) {
    if (newMapName.equals(mapName))
        return;
    mapName = newMapName;
    hopper = new GraphHopper().forDesktop();
    hopper.setOSMFile("osm" + File.separator + mapName + ".osm.pbf");
    // CH does not work with shortest weighting (at the moment)
    hopper.setCHEnabled(false);
    // where to store GH files?
    hopper.setGraphHopperLocation("graphs" + File.separator + mapName);
    hopper.setEncodingManager(new EncodingManager("car"));
    // this may take a few minutes
    hopper.importOrLoad();
}

Example 65 with GraphHopper

use of com.graphhopper.GraphHopper in project graphhopper by graphhopper.

the class MiniGraphUI method main.

public static void main(String[] strs) {
    PMap args = PMap.read(strs);
    args.putObject("datareader.file", args.getString("datareader.file", "core/files/monaco.osm.gz"));
    args.putObject("graph.location", args.getString("graph.location", "tools/target/mini-graph-ui-gh"));
    args.putObject("graph.flag_encoders", args.getString("graph.flag_encoders", "car"));
    GraphHopperConfig ghConfig = new GraphHopperConfig(args);
    ghConfig.setProfiles(Arrays.asList(new Profile("profile").setVehicle("car").setWeighting("fastest")));
    ghConfig.setCHProfiles(Arrays.asList(new CHProfile("profile")));
    ghConfig.setLMProfiles(Arrays.asList(new LMProfile("profile")));
    GraphHopper hopper = new GraphHopper().init(ghConfig).importOrLoad();
    boolean debug = args.getBool("minigraphui.debug", false);
    boolean useCH = args.getBool("minigraphui.useCH", false);
    new MiniGraphUI(hopper, debug, useCH).visualize();
}