Examples with GeometryAttributeDiff org.locationtech.geogig.api.plumbing.diff.GeometryAttributeDiff used on opensource projects

Example 1 with GeometryAttributeDiff

use of org.locationtech.geogig.api.plumbing.diff.GeometryAttributeDiff in project GeoGig by boundlessgeo.

the class MergeFeaturesOp method merge.

@SuppressWarnings("unchecked")
private Feature merge(RevFeature featureA, RevFeature featureB, RevFeature ancestor, RevFeatureType featureType) {
    SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder((SimpleFeatureType) featureType.type());
    ImmutableList<Optional<Object>> valuesA = featureA.getValues();
    ImmutableList<Optional<Object>> valuesB = featureB.getValues();
    ImmutableList<Optional<Object>> valuesAncestor = ancestor.getValues();
    ImmutableList<PropertyDescriptor> descriptors = featureType.sortedDescriptors();
    for (int i = 0; i < descriptors.size(); i++) {
        PropertyDescriptor descriptor = descriptors.get(i);
        boolean isGeom = Geometry.class.isAssignableFrom(descriptor.getType().getBinding());
        Name name = descriptor.getName();
        Optional<Object> valueAncestor = valuesAncestor.get(i);
        Optional<Object> valueA = valuesA.get(i);
        Optional<Object> valueB = valuesB.get(i);
        if (!valueA.equals(valueAncestor)) {
            Optional<Object> merged = valueA;
            if (isGeom && !valueB.equals(valueAncestor)) {
                // true merge is only done with
                // geometries
                GeometryAttributeDiff diffB = new GeometryAttributeDiff(Optional.fromNullable((Geometry) valueAncestor.orNull()), Optional.fromNullable((Geometry) valueB.orNull()));
                merged = (Optional<Object>) diffB.applyOn(valueA);
            }
            featureBuilder.set(name, merged.orNull());
        } else {
            featureBuilder.set(name, valueB.orNull());
        }
    }
    return featureBuilder.buildFeature(nodeRefA.name());
}

Example 2 with GeometryAttributeDiff

use of org.locationtech.geogig.api.plumbing.diff.GeometryAttributeDiff in project GeoGig by boundlessgeo.

the class FeatureDiffWeb method run.

/**
     * Runs the command and builds the appropriate response
     * 
     * @param context - the context to use for this command
     * 
     * @throws CommandSpecException
     */
@Override
public void run(CommandContext context) {
    if (path == null || path.trim().isEmpty()) {
        throw new CommandSpecException("No path for feature name specifed");
    }
    final Context geogig = this.getCommandLocator(context);
    ObjectId newId = geogig.command(ResolveTreeish.class).setTreeish(newTreeish).call().get();
    ObjectId oldId = geogig.command(ResolveTreeish.class).setTreeish(oldTreeish).call().get();
    RevFeature newFeature = null;
    RevFeatureType newFeatureType = null;
    RevFeature oldFeature = null;
    RevFeatureType oldFeatureType = null;
    final Map<PropertyDescriptor, AttributeDiff> diffs;
    Optional<NodeRef> ref = parseID(newId, geogig);
    Optional<RevObject> object;
    // need these to determine if the feature was added or removed so I can build the diffs
    // myself until the FeatureDiff supports null values
    boolean removed = false;
    boolean added = false;
    if (ref.isPresent()) {
        object = geogig.command(RevObjectParse.class).setObjectId(ref.get().getMetadataId()).call();
        if (object.isPresent() && object.get() instanceof RevFeatureType) {
            newFeatureType = (RevFeatureType) object.get();
        } else {
            throw new CommandSpecException("Couldn't resolve newCommit's featureType");
        }
        object = geogig.command(RevObjectParse.class).setObjectId(ref.get().objectId()).call();
        if (object.isPresent() && object.get() instanceof RevFeature) {
            newFeature = (RevFeature) object.get();
        } else {
            throw new CommandSpecException("Couldn't resolve newCommit's feature");
        }
    } else {
        removed = true;
    }
    if (!oldId.equals(ObjectId.NULL)) {
        ref = parseID(oldId, geogig);
        if (ref.isPresent()) {
            object = geogig.command(RevObjectParse.class).setObjectId(ref.get().getMetadataId()).call();
            if (object.isPresent() && object.get() instanceof RevFeatureType) {
                oldFeatureType = (RevFeatureType) object.get();
            } else {
                throw new CommandSpecException("Couldn't resolve oldCommit's featureType");
            }
            object = geogig.command(RevObjectParse.class).setObjectId(ref.get().objectId()).call();
            if (object.isPresent() && object.get() instanceof RevFeature) {
                oldFeature = (RevFeature) object.get();
            } else {
                throw new CommandSpecException("Couldn't resolve oldCommit's feature");
            }
        } else {
            added = true;
        }
    } else {
        added = true;
    }
    if (removed) {
        Map<PropertyDescriptor, AttributeDiff> tempDiffs = new HashMap<PropertyDescriptor, AttributeDiff>();
        ImmutableList<PropertyDescriptor> attributes = oldFeatureType.sortedDescriptors();
        ImmutableList<Optional<Object>> values = oldFeature.getValues();
        for (int index = 0; index < attributes.size(); index++) {
            Optional<Object> value = values.get(index);
            if (Geometry.class.isAssignableFrom(attributes.get(index).getType().getBinding())) {
                Optional<Geometry> temp = Optional.absent();
                if (value.isPresent() || all) {
                    tempDiffs.put(attributes.get(index), new GeometryAttributeDiff(Optional.fromNullable((Geometry) value.orNull()), temp));
                }
            } else {
                if (value.isPresent() || all) {
                    tempDiffs.put(attributes.get(index), new GenericAttributeDiffImpl(value, Optional.absent()));
                }
            }
        }
        diffs = tempDiffs;
    } else if (added) {
        Map<PropertyDescriptor, AttributeDiff> tempDiffs = new HashMap<PropertyDescriptor, AttributeDiff>();
        ImmutableList<PropertyDescriptor> attributes = newFeatureType.sortedDescriptors();
        ImmutableList<Optional<Object>> values = newFeature.getValues();
        for (int index = 0; index < attributes.size(); index++) {
            Optional<Object> value = values.get(index);
            if (Geometry.class.isAssignableFrom(attributes.get(index).getType().getBinding())) {
                Optional<Geometry> temp = Optional.absent();
                if (value.isPresent() || all) {
                    tempDiffs.put(attributes.get(index), new GeometryAttributeDiff(temp, Optional.fromNullable((Geometry) value.orNull())));
                }
            } else {
                if (value.isPresent() || all) {
                    tempDiffs.put(attributes.get(index), new GenericAttributeDiffImpl(Optional.absent(), value));
                }
            }
        }
        diffs = tempDiffs;
    } else {
        FeatureDiff diff = new FeatureDiff(path, newFeature, oldFeature, newFeatureType, oldFeatureType, all);
        diffs = diff.getDiffs();
    }
    context.setResponseContent(new CommandResponse() {

        @Override
        public void write(ResponseWriter out) throws Exception {
            out.start();
            out.writeFeatureDiffResponse(diffs);
            out.finish();
        }
    });
}