Examples with Landmark com.graphhopper.util.Parameters.Landmark used on opensource projects

Example 1 with Landmark

use of com.graphhopper.util.Parameters.Landmark in project graphhopper by graphhopper.

the class GraphHopper method loadOrPrepareLM.

/**
 * For landmarks it is required to always call this method: either it creates the landmark data or it loads it.
 */
protected void loadOrPrepareLM(boolean closeEarly) {
    for (LMProfile profile : lmPreparationHandler.getLMProfiles()) if (!getLMProfileVersion(profile.getProfile()).isEmpty() && !getLMProfileVersion(profile.getProfile()).equals("" + profilesByName.get(profile.getProfile()).getVersion()))
        throw new IllegalArgumentException("LM preparation of " + profile.getProfile() + " already exists in storage and doesn't match configuration");
    // we load landmark storages that already exist and prepare the other ones
    List<LMConfig> lmConfigs = createLMConfigs(lmPreparationHandler.getLMProfiles());
    List<LandmarkStorage> loaded = lmPreparationHandler.load(lmConfigs, ghStorage);
    List<LMConfig> loadedConfigs = loaded.stream().map(LandmarkStorage::getLMConfig).collect(Collectors.toList());
    List<LMConfig> configsToPrepare = lmConfigs.stream().filter(c -> !loadedConfigs.contains(c)).collect(Collectors.toList());
    List<PrepareLandmarks> prepared = prepareLM(closeEarly, configsToPrepare);
    // we map all profile names for which there is LM support to the according LM storages
    landmarks = new LinkedHashMap<>();
    for (LMProfile lmp : lmPreparationHandler.getLMProfiles()) {
        // cross-querying
        String prepProfile = lmp.usesOtherPreparation() ? lmp.getPreparationProfile() : lmp.getProfile();
        Optional<LandmarkStorage> loadedLMS = loaded.stream().filter(lms -> lms.getLMConfig().getName().equals(prepProfile)).findFirst();
        Optional<PrepareLandmarks> preparedLMS = prepared.stream().filter(pl -> pl.getLandmarkStorage().getLMConfig().getName().equals(prepProfile)).findFirst();
        if (loadedLMS.isPresent() && preparedLMS.isPresent())
            throw new IllegalStateException("LM should be either loaded or prepared, but not both: " + prepProfile);
        else if (preparedLMS.isPresent()) {
            setLMProfileVersion(lmp.getProfile(), profilesByName.get(lmp.getProfile()).getVersion());
            landmarks.put(lmp.getProfile(), preparedLMS.get().getLandmarkStorage());
        } else
            loadedLMS.ifPresent(landmarkStorage -> landmarks.put(lmp.getProfile(), landmarkStorage));
    }
}