Examples with ExportDiffOp org.locationtech.geogig.geotools.plumbing.ExportDiffOp used on opensource projects

Example 1 with ExportDiffOp

use of org.locationtech.geogig.geotools.plumbing.ExportDiffOp in project GeoGig by boundlessgeo.

the class ShpExportDiff method runInternal.

/**
     * Executes the export command using the provided options.
     */
@Override
protected void runInternal(GeogigCLI cli) throws IOException {
    if (args.size() != 4) {
        printUsage(cli);
        throw new CommandFailedException();
    }
    String commitOld = args.get(0);
    String commitNew = args.get(1);
    String path = args.get(2);
    String shapefile = args.get(3);
    ShapefileDataStoreFactory dataStoreFactory = new ShapefileDataStoreFactory();
    File file = new File(shapefile);
    if (file.exists() && !overwrite) {
        throw new CommandFailedException("The selected shapefile already exists. Use -o to overwrite");
    }
    Map<String, Serializable> params = new HashMap<String, Serializable>();
    params.put(ShapefileDataStoreFactory.URLP.key, file.toURI().toURL());
    params.put(ShapefileDataStoreFactory.CREATE_SPATIAL_INDEX.key, Boolean.FALSE);
    params.put(ShapefileDataStoreFactory.ENABLE_SPATIAL_INDEX.key, Boolean.FALSE);
    ShapefileDataStore dataStore = (ShapefileDataStore) dataStoreFactory.createNewDataStore(params);
    SimpleFeatureType outputFeatureType;
    try {
        outputFeatureType = getFeatureType(path, cli);
    } catch (GeoToolsOpException e) {
        cli.getConsole().println("No features to export.");
        return;
    }
    SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
    builder.add("geogig_fid", String.class);
    for (AttributeDescriptor descriptor : outputFeatureType.getAttributeDescriptors()) {
        builder.add(descriptor);
    }
    builder.setName(outputFeatureType.getName());
    builder.setCRS(outputFeatureType.getCoordinateReferenceSystem());
    outputFeatureType = builder.buildFeatureType();
    dataStore.createSchema(outputFeatureType);
    final String typeName = dataStore.getTypeNames()[0];
    final SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
    if (!(featureSource instanceof SimpleFeatureStore)) {
        throw new CommandFailedException("Could not create feature store.");
    }
    final SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
    Function<Feature, Optional<Feature>> function = getTransformingFunction(dataStore.getSchema());
    ExportDiffOp op = cli.getGeogig().command(ExportDiffOp.class).setFeatureStore(featureStore).setPath(path).setOldRef(commitOld).setNewRef(commitNew).setUseOld(old).setTransactional(false).setFeatureTypeConversionFunction(function);
    try {
        op.setProgressListener(cli.getProgressListener()).call();
    } catch (IllegalArgumentException iae) {
        throw new org.locationtech.geogig.cli.InvalidParameterException(iae.getMessage(), iae);
    } catch (GeoToolsOpException e) {
        file.delete();
        switch(e.statusCode) {
            case MIXED_FEATURE_TYPES:
                throw new CommandFailedException("Error: The selected tree contains mixed feature types.", e);
            default:
                throw new CommandFailedException("Could not export. Error:" + e.statusCode.name(), e);
        }
    }
    cli.getConsole().println(path + " exported successfully to " + shapefile);
}