/*
* Constellation - An open source and standard compliant SDI
* http://www.constellation-sdi.org
*
* Copyright 2014 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.ws.rs.provider;
import org.apache.sis.metadata.iso.DefaultMetadata;
import org.apache.sis.util.logging.Logging;
import org.constellation.utils.ISOMarshallerPool;
import org.geotoolkit.csw.xml.CSWClassesContext;
import org.glassfish.jersey.jettison.JettisonConfig;
import org.glassfish.jersey.jettison.JettisonJaxbContext;
import org.glassfish.jersey.jettison.JettisonMarshaller;
import javax.ws.rs.Produces;
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 javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Write a {@linkplain org.apache.sis.metadata.iso.DefaultMetadata metadata} response in the stream.
*
* @author Cédric Briançon (Geomatys)
*
* @version 0.9
*
* @see Provider
* @see Produces
*/
@Provider
@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
public final class MetadataBodyWriter implements MessageBodyWriter {
private static final Map<String, String> XML_TO_JSON_NAMESPACES = new HashMap<>();
static {
XML_TO_JSON_NAMESPACES.put("http://www.opengis.net/gml", "gml");
XML_TO_JSON_NAMESPACES.put("http://www.opengis.net/gml/3.2", "gml32");
XML_TO_JSON_NAMESPACES.put("http://www.opengis.net/ows/1.1", "ows");
XML_TO_JSON_NAMESPACES.put("http://www.opengis.net/ogc", "ogc");
XML_TO_JSON_NAMESPACES.put("http://www.w3.org/1999/xlink", "xlink");
XML_TO_JSON_NAMESPACES.put("http://www.w3.org/XML/1998/namespace", "nmsp");
XML_TO_JSON_NAMESPACES.put("http://www.cnig.gouv.fr/2005/fra", "fra");
XML_TO_JSON_NAMESPACES.put("http://www.isotc211.org/2005/gco", "gco");
XML_TO_JSON_NAMESPACES.put("http://www.isotc211.org/2005/gmx", "gmx");
XML_TO_JSON_NAMESPACES.put("http://www.isotc211.org/2005/gmd", "gmd");
}
private static final Logger LOGGER = Logging.getLogger("org.constellation.ws.rs.provider");
@Override
public boolean isWriteable(Class type, Type type1, Annotation[] antns, MediaType mt) {
return DefaultMetadata.class.isAssignableFrom(type);
}
@Override
public long getSize(Object t, Class type, Type type1, Annotation[] antns, MediaType mt) {
return -1;
}
@Override
public void writeTo(Object r, Class type, Type type1, Annotation[] antns, MediaType mt,
MultivaluedMap mm, OutputStream out) throws IOException, WebApplicationException {
try {
// if it's a json POST, create a JSonMarshaller.
if (mt.equals(MediaType.APPLICATION_JSON_TYPE)) {
// create json marshaller configuration and context
JettisonConfig config = JettisonConfig.mappedJettison().xml2JsonNs(XML_TO_JSON_NAMESPACES).build();
JettisonJaxbContext cxtx = new JettisonJaxbContext(config, CSWClassesContext.getAllClasses());
// create marshaller
JettisonMarshaller jsonMarshaller = cxtx.createJsonMarshaller();
// Marshall object
jsonMarshaller.marshallToJSON(r, out);
} else {
// Default : use xml marshaller
final Marshaller m = ISOMarshallerPool.getInstance().acquireMarshaller();
m.marshal(r, out);
ISOMarshallerPool.getInstance().recycle(m);
}
} catch (JAXBException ex) {
LOGGER.log(Level.SEVERE, "JAXB exception while writing the layerContext", ex);
}
}
}