Examples of org.geotools.data.memory.MemoryDataStore

org.geotools.data.memory.MemoryDataStore
This is an example implementation of a DataStore used for testing.
It serves as an example implementation of:
- FeatureListenerManager use: allows handling of FeatureEvents
This class will also illustrate the use of In-Process locking when the time comes.
@author jgarnett @source $URL$

            builder.add(descriptor);
        }
        builder.setName(pointsType.getName());
        builder.setCRS(pointsType.getCoordinateReferenceSystem());
        SimpleFeatureType outputFeatureType = builder.buildFeatureType();
        MemoryDataStore dataStore = new MemoryDataStore(outputFeatureType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportDiffOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setNewRef(changeCommit.getId().toString())
                .setOldRef(insertCommit.getId().toString()).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, points));

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            builder.add(descriptor);
        }
        builder.setName(pointsType.getName());
        builder.setCRS(pointsType.getCoordinateReferenceSystem());
        SimpleFeatureType outputFeatureType = builder.buildFeatureType();
        MemoryDataStore dataStore = new MemoryDataStore(outputFeatureType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportDiffOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setNewRef(changeCommit.getId().toString())
                .setOldRef(insertCommit.getId().toString()).setUseOld(true).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, points));

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    public void testExportFromWorkingTree() throws Exception {
        Feature[] points = new Feature[] { points1, points2, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, points));

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        for (Feature feature : points) {
            insert(feature);
        }
        geogig.command(AddOp.class).call();
        geogig.command(CommitOp.class).setAll(true).call();
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath("HEAD:" + pointsName)
                .call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, points));

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        Feature[] points = new Feature[] { points1, points2, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        MemoryDataStore dataStore = new MemoryDataStore(simplifiedPointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setFeatureTypeConversionFunction(function).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, simplifiedPoints));

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        return true;
    }


    @Test
    public void testExportFromWrongFeatureType() throws Exception {
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        try {
            geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName).call();
            fail();
        } catch (IllegalArgumentException e) {

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        Feature[] points = new Feature[] { points2, points1B, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        Feature[] expectedPoints = new Feature[] { points2, points3 };
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .exportDefaultFeatureType().call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), expectedPoints.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, expectedPoints));

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    public void testExportWithAlterUsingDefaultFeatureType() throws Exception {
        Feature[] points = new Feature[] { points2, points1B, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setAlter(true).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, points));

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    public void testExportWithAlterUsingFeatureTypeId() throws Exception {
        Feature[] points = new Feature[] { points2, points1B, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        MemoryDataStore dataStore = new MemoryDataStore(modifiedPointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setAlter(true)
                .setFilterFeatureTypeId(RevFeatureTypeImpl.build(modifiedPointsType).getId()).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(featureCollection.size(), points.length);
        SimpleFeatureIterator features = featureCollection.features();
        while (features.hasNext()) {

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        Feature[] points = new Feature[] { points2, points1B, points3 };
        for (Feature feature : points) {
            insert(feature);
        }
        Feature[] expectedPoints = new Feature[] { points1B };
        MemoryDataStore dataStore = new MemoryDataStore(pointsType);
        final String typeName = dataStore.getTypeNames()[0];
        SimpleFeatureSource featureSource = dataStore.getFeatureSource(typeName);
        SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
        geogig.command(ExportOp.class).setFeatureStore(featureStore).setPath(pointsName)
                .setFilterFeatureTypeId(RevFeatureTypeImpl.build(modifiedPointsType).getId()).call();
        featureSource = dataStore.getFeatureSource(typeName);
        featureStore = (SimpleFeatureStore) featureSource;
        SimpleFeatureCollection featureCollection = featureStore.getFeatures();
        assertEquals(expectedPoints.length, featureCollection.size());
        SimpleFeatureIterator features = featureCollection.features();
        assertTrue(collectionsAreEqual(features, expectedPoints));

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