Examples with FeatureIterator org.geotoolkit.storage.feature.FeatureIterator used on opensource projects

Example 1 with FeatureIterator

use of org.geotoolkit.storage.feature.FeatureIterator in project geotoolkit by Geomatys.

the class FeatureStreamsTest method testStartIndexIterator.

@Test
public void testStartIndexIterator() {
    FeatureCollection collection = buildSimpleFeatureCollection();
    FeatureIterator ite = FeatureStreams.skip(collection.iterator(), 0);
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.skip(collection.iterator(), 1);
    assertEquals(2, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.skip(collection.iterator(), 2);
    assertTrue(ite.next() != null);
    try {
        ite.next();
        fail("Should have raise a no such element exception.");
    } catch (NoSuchElementException ex) {
    // ok
    }
    // check has next do not iterate
    ite = FeatureStreams.skip(collection.iterator(), 1);
    testIterationOnNext(ite, 2);
    // check sub iterator is properly closed
    CheckCloseFeatureIterator checkIte = new CheckCloseFeatureIterator(collection.iterator());
    assertFalse(checkIte.isClosed());
    ite = FeatureStreams.skip(checkIte, 1);
    while (ite.hasNext()) ite.next();
    ite.close();
    assertTrue(checkIte.isClosed());
}

Example 2 with FeatureIterator

use of org.geotoolkit.storage.feature.FeatureIterator in project geotoolkit by Geomatys.

the class FeatureStreamsTest method testFilterIterator.

@Test
public void testFilterIterator() {
    FeatureCollection collection = buildSimpleFeatureCollection();
    FeatureIterator ite = FeatureStreams.filter(collection.iterator(), Filter.include());
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.filter(collection.iterator(), Filter.exclude());
    assertEquals(0, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.filter(collection.iterator(), FF.equal(FF.literal("aaa"), FF.property("att_string")));
    assertEquals(1, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.filter(collection.iterator(), FF.equal(FF.literal("aaa"), FF.property("att_string")));
    assertEquals(id3, ite.next().getPropertyValue(AttributeConvention.IDENTIFIER));
    try {
        ite.next();
        fail("Should have raise a no such element exception.");
    } catch (NoSuchElementException ex) {
    // ok
    }
    // check has next do not iterate
    ite = FeatureStreams.filter(collection.iterator(), Filter.include());
    testIterationOnNext(ite, 3);
    // check sub iterator is properly closed
    CheckCloseFeatureIterator checkIte = new CheckCloseFeatureIterator(collection.iterator());
    assertFalse(checkIte.isClosed());
    ite = FeatureStreams.filter(checkIte, Filter.include());
    while (ite.hasNext()) ite.next();
    ite.close();
    assertTrue(checkIte.isClosed());
}

Example 3 with FeatureIterator

use of org.geotoolkit.storage.feature.FeatureIterator in project geotoolkit by Geomatys.

the class FeatureStreamsTest method testCacheIterator.

@Test
@Ignore("See #GEOTK-489")
public void testCacheIterator() {
    FeatureCollection collection = buildSimpleFeatureCollection();
    FeatureIterator ite = FeatureStreams.cached(collection.iterator(), 1);
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.cached(collection.iterator(), 1);
    int mask = 0;
    Feature f;
    while (ite.hasNext()) {
        f = ite.next();
        final Object id = f.getPropertyValue(AttributeConvention.IDENTIFIER);
        if (id1.equals(id)) {
            mask |= 1 << 0;
        } else if (id2.equals(id)) {
            mask |= 1 << 1;
        } else if (id3.equals(id)) {
            mask |= 1 << 2;
        }
    }
    ite.close();
    if (mask != 7) {
        fail("missing features in iterations");
    }
}

Example 4 with FeatureIterator

use of org.geotoolkit.storage.feature.FeatureIterator in project geotoolkit by Geomatys.

the class FeatureStreamsTest method testModifyIterator.

@Test
public void testModifyIterator() {
    FeatureCollection collection = buildSimpleFeatureCollection();
    FeatureType originalType = collection.getType();
    Filter filter = Filter.include();
    Map<String, Object> values = new HashMap<>();
    values.put("att_string", "toto");
    FeatureIterator ite = FeatureStreams.update(collection.iterator(), filter, values);
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.update(collection.iterator(), filter, values);
    while (ite.hasNext()) {
        assertTrue(ite.next().getProperty("att_string").getValue().equals("toto"));
    }
    filter = FF.equal(FF.literal("aaa"), FF.property("att_string"));
    ite = FeatureStreams.update(collection.iterator(), filter, values);
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.update(collection.iterator(), filter, values);
    while (ite.hasNext()) {
        Feature f = ite.next();
        if (f.getPropertyValue(AttributeConvention.IDENTIFIER).equals(id3)) {
            assertTrue(f.getProperty("att_string").getValue().equals("toto"));
        } else {
            assertFalse(f.getProperty("att_string").getValue().equals("toto"));
        }
    }
    ite = FeatureStreams.update(collection.iterator(), filter, values);
    ite.next();
    ite.next();
    ite.next();
    try {
        ite.next();
        fail("Should have raise a no such element exception.");
    } catch (NoSuchElementException ex) {
    // ok
    }
    // check has next do not iterate
    ite = FeatureStreams.update(collection.iterator(), filter, values);
    testIterationOnNext(ite, 3);
    // check sub iterator is properly closed
    CheckCloseFeatureIterator checkIte = new CheckCloseFeatureIterator(collection.iterator());
    assertFalse(checkIte.isClosed());
    ite = FeatureStreams.update(checkIte, filter, values);
    while (ite.hasNext()) ite.next();
    ite.close();
    assertTrue(checkIte.isClosed());
}

Example 5 with FeatureIterator

use of org.geotoolkit.storage.feature.FeatureIterator in project geotoolkit by Geomatys.

the class FeatureStreamsTest method testSortByIterator.

@Test
public void testSortByIterator() {
    SortProperty[] sorts = new SortProperty[] { FF.sort(FF.property("att_string"), SortOrder.ASCENDING) };
    FeatureCollection collection = buildSimpleFeatureCollection();
    FeatureIterator ite = FeatureStreams.sort(collection.iterator(), sorts);
    assertEquals(3, FeatureStoreUtilities.calculateCount(ite));
    ite = FeatureStreams.sort(collection.iterator(), sorts);
    assertEquals(id3, ite.next().getPropertyValue(AttributeConvention.IDENTIFIER));
    assertEquals(id1, ite.next().getPropertyValue(AttributeConvention.IDENTIFIER));
    assertEquals(id2, ite.next().getPropertyValue(AttributeConvention.IDENTIFIER));
    try {
        ite.next();
        fail("Should have raise a no such element exception.");
    } catch (NoSuchElementException ex) {
    // ok
    }
    // check has next do not iterate
    ite = FeatureStreams.sort(collection.iterator(), sorts);
    testIterationOnNext(ite, 3);
    // check sub iterator is properly closed
    CheckCloseFeatureIterator checkIte = new CheckCloseFeatureIterator(collection.iterator());
    assertFalse(checkIte.isClosed());
    ite = FeatureStreams.sort(checkIte, sorts);
    while (ite.hasNext()) ite.next();
    ite.close();
    assertTrue(checkIte.isClosed());
}