/* Copyright (c) 2014 Boundless and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Distribution License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/edl-v10.html
*
* Contributors:
* Victor Olaya (Boundless) - initial implementation
*/
package org.locationtech.geogig.geotools.plumbing;
import java.util.List;
import org.geotools.data.memory.MemoryDataStore;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.data.simple.SimpleFeatureStore;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.junit.Test;
import org.locationtech.geogig.api.RevCommit;
import org.locationtech.geogig.api.porcelain.CommitOp;
import org.locationtech.geogig.test.integration.RepositoryTestCase;
import org.opengis.feature.Feature;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.AttributeDescriptor;
import com.google.common.base.Objects;
public class ExportDiffOpTest extends RepositoryTestCase {
@Override
protected void setUpInternal() throws Exception {
}
@Test
public void testExportDiff() throws Exception {
insertAndAdd(points1);
final RevCommit insertCommit = geogig.command(CommitOp.class).setAll(true).call();
final String featureId = points1.getIdentifier().getID();
final Feature modifiedFeature = feature((SimpleFeatureType) points1.getType(), featureId,
"changedProp", new Integer(1500));
insertAndAdd(modifiedFeature, points2);
final RevCommit changeCommit = geogig.command(CommitOp.class).setAll(true).call();
Feature[] points = new Feature[] { modifiedFeature, points2 };
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.add("geogig_fid", String.class);
for (AttributeDescriptor descriptor : pointsType.getAttributeDescriptors()) {
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));
}
@Test
public void testExportDiffUsingOldVersion() throws Exception {
insertAndAdd(points1);
final RevCommit insertCommit = geogig.command(CommitOp.class).setAll(true).call();
final String featureId = points1.getIdentifier().getID();
final Feature modifiedFeature = feature((SimpleFeatureType) points1.getType(), featureId,
"changedProp", new Integer(1500));
insertAndAdd(modifiedFeature, points2);
final RevCommit changeCommit = geogig.command(CommitOp.class).setAll(true).call();
Feature[] points = new Feature[] { points1 };
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.add("geogig_fid", String.class);
for (AttributeDescriptor descriptor : pointsType.getAttributeDescriptors()) {
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));
}
private boolean collectionsAreEqual(SimpleFeatureIterator features, Feature[] points) {
// features are not iterated in the same order as the original set, so
// we just do pairwise comparison to check that all the original features
// are represented in the exported feature store
while (features.hasNext()) {
boolean found = true;
List<Object> attributesExported = features.next().getAttributes();
for (int i = 0; i < points.length; i++) {
found = true;
List<Object> attributesOriginal = ((SimpleFeature) points[i]).getAttributes();
for (int j = 0; j < attributesExported.size() - 1; j++) {
Object attributeExported = attributesExported.get(j + 1);
Object attributeOriginal = attributesOriginal.get(j);
if (!Objects.equal(attributeOriginal, attributeExported)) {
found = false;
break;
}
}
found = found
&& points[i].getIdentifier().getID().equals(attributesExported.get(0));
if (found) {
break;
}
}
if (!found) {
return false;
}
}
return true;
}
}