001/*
002 * (C) Copyright 2014 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl-2.1.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     tdelprat
016 */
017package org.nuxeo.ecm.restapi.jaxrs.io.types;
018
019import java.io.IOException;
020import java.io.OutputStream;
021import java.lang.annotation.Annotation;
022import java.lang.reflect.Type;
023
024import javax.ws.rs.Produces;
025import javax.ws.rs.core.MediaType;
026import javax.ws.rs.core.MultivaluedMap;
027import javax.ws.rs.ext.MessageBodyWriter;
028import javax.ws.rs.ext.Provider;
029
030import org.codehaus.jackson.JsonGenerator;
031import org.nuxeo.ecm.core.schema.DocumentType;
032import org.nuxeo.ecm.core.schema.types.CompositeType;
033
034@Provider
035@Produces(MediaType.APPLICATION_JSON)
036public class FacetWriter extends AbstractTypeDefWriter implements MessageBodyWriter<CompositeType> {
037
038    @Override
039    public void writeTo(CompositeType facet, Class<?> type, Type genericType, Annotation[] annotations,
040            MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
041            throws IOException {
042        JsonGenerator jg = getGenerator(entityStream);
043        jg.writeStartObject();
044        writeFacet(jg, facet, true);
045        jg.writeEndObject();
046        // flush
047        jg.flush();
048        jg.close();
049        entityStream.flush();
050    }
051
052    @Override
053    public long getSize(CompositeType arg0, Class<?> arg1, Type arg2, Annotation[] arg3, MediaType arg4) {
054        return -1;
055    }
056
057    @Override
058    public boolean isWriteable(Class<?> arg0, Type type, Annotation[] arg2, MediaType arg3) {
059        return CompositeType.class.isAssignableFrom(arg0) && !DocumentType.class.isAssignableFrom(arg0);
060    }
061
062}