source: VirtualCollectionRegistry/trunk/VirtualCollectionRegistry/src/main/java/eu/clarin/cmdi/virtualcollectionregistry/rest/VirtualCollectionXMLBodyWriter.java @ 5510

package eu.clarin.cmdi.virtualcollectionregistry.rest;

import com.sun.jersey.api.core.InjectParam;
import eu.clarin.cmdi.virtualcollectionregistry.model.VirtualCollection;
import eu.clarin.cmdi.virtualcollectionregistry.service.VirtualCollectionMarshaller;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
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;

/**
 * Body writer that outputs an XML representation of a virtual collection in the
 * internal representation
 *
 * @author twagoo
 */
@Provider
@Produces({MediaType.TEXT_XML,
    MediaType.APPLICATION_XML,
    MediaType.APPLICATION_JSON})
public class VirtualCollectionXMLBodyWriter implements MessageBodyWriter<VirtualCollection> {

    @InjectParam
    private VirtualCollectionMarshaller marshaller;

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return type.equals(VirtualCollection.class);
    }

    @Override
    public long getSize(VirtualCollection t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return -1;
    }

    @Override
    public void writeTo(VirtualCollection vc, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream stream) throws IOException, WebApplicationException {
        final VirtualCollectionMarshaller.Format format = RestUtils.getOutputFormat(Collections.singletonList(mediaType));
        marshaller.marshal(stream, format, vc);
    }

}