/*
* Constellation - An open source and standard compliant SDI
* http://www.constellation-sdi.org
*
* Copyright 2015 Geomatys.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.constellation.wfs.ws.rs;
import com.fasterxml.jackson.core.JsonEncoding;
import org.apache.sis.storage.DataStoreException;
import org.apache.sis.util.logging.Logging;
import org.geotoolkit.data.FeatureStoreRuntimeException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.geotoolkit.data.FeatureStoreUtilities;
import org.geotoolkit.data.FeatureWriter;
import org.geotoolkit.data.geojson.GeoJSONStreamWriter;
/**
*
* @author Guilhem Legal (Geomatys)
*/
@Provider
public class FeatureCollectionGJSWriter<T extends FeatureCollectionWrapper> implements MessageBodyWriter<T> {
private static final Logger LOGGER = Logging.getLogger("org.constellation.wfs.ws.rs");
@Override
public boolean isWriteable(final Class<?> type, final Type type1, final Annotation[] antns, final MediaType mt) {
return FeatureCollectionWrapper.class.isAssignableFrom(type) && mt.toString().equals("application/json");
}
@Override
public long getSize(final T t, final Class<?> type, final Type type1, final Annotation[] antns, final MediaType mt) {
return -1;
}
@Override
public void writeTo(final T t, final Class<?> type, final Type type1, final Annotation[] antns, final MediaType mt,
final MultivaluedMap<String, Object> mm, final OutputStream out) throws IOException, WebApplicationException {
try {
FeatureWriter featureWriter = new GeoJSONStreamWriter(out, t.getFeatureCollection().getFeatureType(), JsonEncoding.UTF8, 4, true);
FeatureStoreUtilities.write(featureWriter, t.getFeatureCollection());
} catch (DataStoreException ex) {
LOGGER.log(Level.SEVERE, "DataStore exception while writing the feature collection", ex);
} catch (FeatureStoreRuntimeException ex) {
LOGGER.log(Level.SEVERE, "DataStoreRuntimeException exception while writing the feature collection", ex);
}
}
}