Examples with StorageConnector org.apache.sis.storage.StorageConnector used on opensource projects

Example 6 with StorageConnector

use of org.apache.sis.storage.StorageConnector in project sis by apache.

the class StoreTest method testMovingFeatures.

/**
 * Tests reading the data as a moving features. In the following data:
 *
 * {@preformat text
 *     a,  10, 150, 11.0 2.0 12.0 3.0, walking, 1
 *     b,  10, 190, 10.0 2.0 11.0 3.0, walking, 2
 *     a, 150, 190, 12.0 3.0 10.0 3.0
 *     c,  10, 190, 12.0 1.0 10.0 2.0 11.0 3.0, vehicle, 1
 * }
 *
 * the two rows for the "a" features shall be merged in a single trajectory.
 *
 * @throws DataStoreException if an error occurred while parsing the data.
 */
@Test
public void testMovingFeatures() throws DataStoreException {
    isMovingFeature = true;
    try (Store store = new Store(null, new StorageConnector(testData()))) {
        verifyFeatureType(store.featureType, Polyline.class, Integer.MAX_VALUE);
        assertEquals("foliation", Foliation.TIME, store.foliation);
        final Iterator<AbstractFeature> it = store.features(false).iterator();
        assertPropertyEquals(it.next(), "a", "12:33:51", "12:36:51", new double[] { 11, 2, 12, 3, 10, 3 }, singletonList("walking"), Arrays.asList(1, 2));
        assertPropertyEquals(it.next(), "b", "12:33:51", "12:36:51", new double[] { 10, 2, 11, 3 }, singletonList("walking"), singletonList(2));
        assertPropertyEquals(it.next(), "c", "12:33:51", "12:36:51", new double[] { 12, 1, 10, 2, 11, 3 }, singletonList("vehicle"), singletonList(1));
        assertFalse(it.hasNext());
    }
}

Example 7 with StorageConnector

use of org.apache.sis.storage.StorageConnector in project sis by apache.

the class ReaderTest method createFromURL.

/**
 * Creates a data store for the {@code "1.1/route.xml"} test files using its URL instead than the input stream.
 * Using the URL makes easier for the data store to read the same data more than once.
 */
private static Store createFromURL() throws DataStoreException {
    final StorageConnector connector = new StorageConnector(ReaderTest.class.getResource("1.1/route.xml"));
    connector.setOption(OptionKey.URL_ENCODING, "UTF-8");
    return new Store(provider, connector);
}

Example 8 with StorageConnector

use of org.apache.sis.storage.StorageConnector in project sis by apache.

the class WriterTest method testInputReplacement.

/**
 * Tests coexistence of read and write operations by first reading part of a file,
 * then switching in write mode.
 *
 * @throws Exception if an error occurred while creating the temporary test file,
 *         the test data or performing data store operation.
 */
@Test
@DependsOnMethod("testRoutes110")
public void testInputReplacement() throws Exception {
    try (Store store = new Store(provider, new StorageConnector(TestUtilities.createTemporaryFile(ReaderTest.class, "1.1/metadata.xml")))) {
        /*
             * Read part of the file. We verify its content as a matter of principle,
             * but the main purpose of following code is to advance in the stream.
             */
        ReaderTest.verifyMetadata((Metadata) store.getMetadata(), 3);
        assertEquals("version", StoreProvider.V1_1, store.getVersion());
        /*
             * Replace the metadata content by route content. The data store should rewind
             * to the begining of the file and replace the input stream by an output stream.
             */
        testFeatures(store, Type.ROUTE);
        /*
             * Following should revert the output stream back to an input stream and rewind again.
             */
        ReaderTest.verifyRoute110(store);
    }
}

Example 9 with StorageConnector

use of org.apache.sis.storage.StorageConnector in project sis by apache.

the class WritableStore method add.

/**
 * Create a new file for the given resource.
 * This implementation uses the provider specified at creation time.
 */
@Override
public synchronized Resource add(final Resource resource) throws DataStoreException {
    ArgumentChecks.ensureNonNull("resource", resource);
    if (!(resource instanceof FeatureSet)) {
        throw new DataStoreException(message(Resources.Keys.CanNotStoreResourceType_2, new Object[] { FolderStoreProvider.NAME, StoreUtilities.getInterface(resource.getClass()) }));
    }
    /*
         * If we determined in a previous method invocation that the given provider can not write feature set,
         * we are better to fail now instead than polluting the directory with files that we can not use.
         */
    if (isReadOnly) {
        throw new ReadOnlyStorageException(messages().getString(Resources.Keys.StoreIsReadOnly));
    }
    /*
         * Infer a filename from the resource identifier, if one can be found.
         * A suffix is added to the filename if available (some formats may have no suffix at all).
         */
    String filename = StoreUtilities.getIdentifier(resource.getMetadata());
    if (filename == null) {
        throw new DataStoreException(message(Resources.Keys.MissingResourceIdentifier_1, StoreUtilities.getLabel(resource)));
    }
    final String[] suffixes = StoreUtilities.getFileSuffixes(componentProvider.getClass());
    if (suffixes.length != 0) {
        filename += '.' + suffixes[0];
    }
    /*
         * Create new store/resource for write access, provided that no store already exist for the path.
         * We use the CREATE_NEW option in order to intentionally fail if the resource already exists.
         */
    final Path path = location.resolve(filename);
    if (!children.containsKey(path)) {
        final StorageConnector connector = new StorageConnector(path);
        connector.setOption(OptionKey.LOCALE, locale);
        connector.setOption(OptionKey.TIMEZONE, timezone);
        connector.setOption(OptionKey.ENCODING, encoding);
        connector.setOption(OptionKey.OPEN_OPTIONS, new StandardOpenOption[] { StandardOpenOption.CREATE_NEW, StandardOpenOption.WRITE });
        final DataStore store = componentProvider.open(connector);
        if (children.putIfAbsent(path, store) == null) {
            // TODO: handle transactional case.
            if (store instanceof WritableFeatureSet) {
                StoreUtilities.copy((FeatureSet) resource, (WritableFeatureSet) store);
                // Clear cache. TODO: we should do something more efficient.
                components = null;
                return store;
            }
            /*
                 * If the data store is not a WritableFeatureSet, current implementation can not use it.
                 * Files created by this failed attempt may remain; instead of trying to delete them with
                 * uncertain consequences, we set a flag for avoiding to pollute further the directory.
                 */
            isReadOnly = true;
            children.remove(path, store);
            final String name = store.getDisplayName();
            store.close();
            throw new DataStoreException(message(Resources.Keys.NotAWritableFeatureSet_1, name));
        }
        store.close();
    }
    throw new DataStoreException(message(Resources.Keys.ResourceAlreadyExists_1, path));
}

Example 10 with StorageConnector

use of org.apache.sis.storage.StorageConnector in project sis by apache.

the class StoreProvider method open.

/**
 * Returns a CSV {@link Store} implementation from the given parameters.
 *
 * @return a data store implementation associated with this provider for the given parameters.
 * @throws DataStoreException if an error occurred while creating the data store instance.
 */
@Override
public DataStore open(final ParameterValueGroup parameters) throws DataStoreException {
    ArgumentChecks.ensureNonNull("parameter", parameters);
    final StorageConnector connector = connector(this, parameters);
    final Parameters pg = Parameters.castOrWrap(parameters);
    connector.setOption(DataOptionKey.ENCODING, pg.getValue(ENCODING));
    connector.setOption(DataOptionKey.FOLIATION_REPRESENTATION, pg.getValue(FOLIATION));
    return new Store(this, connector);
}