/*
* Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
*
* 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.jboss.errai.jaxrs;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
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 org.jboss.errai.marshalling.server.MappingContextSingleton;
import org.jboss.errai.marshalling.server.ServerMarshalling;
/**
* Provider for serialization/deserialization of Errai objects.
*
* @author Christian Sadilek <csadilek@redhat.com>
*/
@Provider
@Produces("application/*+json")
@Consumes("application/*+json")
public class ErraiProvider implements MessageBodyReader<Object>, MessageBodyWriter<Object> {
static {
MappingContextSingleton.get();
}
@Override
public boolean isReadable(final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
return ServerMarshalling.canHandle(type);
}
@Override
public boolean isWriteable(final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
return ServerMarshalling.canHandle(type);
}
@Override
public long getSize(final Object t, final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
return -1;
}
@Override
public void writeTo(final Object t, final Class<?> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType,
final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream) throws IOException,
WebApplicationException {
entityStream.write(ServerMarshalling.toJSON(t).getBytes(Charset.forName("UTF-8")));
}
@Override
public Object readFrom(final Class<Object> type, final Type genericType, final Annotation[] annotations, final MediaType mediaType,
final MultivaluedMap<String, String> httpHeaders, final InputStream entityStream) throws IOException, WebApplicationException {
return ServerMarshalling.fromJSON(entityStream);
}
}