/**
* Copyright 2008 - 2009 Pro-Netics S.P.A.
*
* 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 it.pronetics.madstore.server.jaxrs.atom.providers;
import it.pronetics.madstore.common.AtomConstants;
import org.apache.abdera.model.Document;
import org.apache.abdera.parser.Parser;
import org.apache.abdera.writer.Writer;
import javax.ws.rs.Consumes;
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.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import org.apache.abdera.Abdera;
import org.apache.abdera.ext.opensearch.model.OpenSearchDescription;
/**
* JAX-RS provider for writing and reading Open Search Description documents.
*
* @author Sergio Bossa
*/
@Provider
@Consumes(AtomConstants.OPENSEARCH_DESCRIPTION_MEDIA_TYPE)
@Produces(AtomConstants.OPENSEARCH_DESCRIPTION_MEDIA_TYPE)
public class AbderaOpenSearchDescriptionProvider implements MessageBodyReader<OpenSearchDescription>, MessageBodyWriter<OpenSearchDescription> {
private final Abdera abdera = Abdera.getInstance();
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return type.equals(OpenSearchDescription.class);
}
public OpenSearchDescription readFrom(Class<OpenSearchDescription> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
Parser parser = abdera.getParser();
Document<OpenSearchDescription> doc = parser.parse(entityStream);
return doc.getRoot();
}
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return OpenSearchDescription.class.isAssignableFrom(type);
}
public long getSize(OpenSearchDescription description, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return -1;
}
public void writeTo(OpenSearchDescription description, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
Writer writer = abdera.getWriter();
writer.writeTo(description, entityStream);
}
}