Examples with AbstractList java.util.AbstractList used on opensource projects

Example 26 with AbstractList

use of java.util.AbstractList in project GeoGig by boundlessgeo.

the class GeogigFeatureStore method addFeatures.

@Override
public final List<FeatureId> addFeatures(FeatureCollection<SimpleFeatureType, SimpleFeature> featureCollection) throws IOException {
    if (Transaction.AUTO_COMMIT.equals(getTransaction())) {
        throw new UnsupportedOperationException("GeoGIG does not support AUTO_COMMIT");
    }
    Preconditions.checkState(getDataStore().isAllowTransactions(), "Transactions not supported; head is not a local branch");
    final WorkingTree workingTree = delegate.getWorkingTree();
    final String path = delegate.getTypeTreePath();
    ProgressListener listener = new DefaultProgressListener();
    final List<FeatureId> insertedFids = Lists.newArrayList();
    List<Node> deferringTarget = new AbstractList<Node>() {

        @Override
        public boolean add(Node node) {
            String fid = node.getName();
            String version = node.getObjectId().toString();
            insertedFids.add(new FeatureIdVersionedImpl(fid, version));
            return true;
        }

        @Override
        public Node get(int index) {
            throw new UnsupportedOperationException();
        }

        @Override
        public int size() {
            return 0;
        }
    };
    Integer count = (Integer) null;
    FeatureIterator<SimpleFeature> featureIterator = featureCollection.features();
    try {
        Iterator<SimpleFeature> features;
        features = new FeatureIteratorIterator<SimpleFeature>(featureIterator);
        /*
             * Make sure to transform the incoming features to the native schema to avoid situations
             * where geogig would change the metadataId of the RevFeature nodes due to small
             * differences in the default and incoming schema such as namespace or missing
             * properties
             */
        final SimpleFeatureType nativeSchema = delegate.getNativeType();
        features = Iterators.transform(features, new SchemaInforcer(nativeSchema));
        workingTree.insert(path, features, listener, deferringTarget, count);
    } catch (Exception e) {
        throw new IOException(e);
    } finally {
        featureIterator.close();
    }
    return insertedFids;
}