/**
*
* Copyright 2009-2011 Rickard Öberg AB
*
* 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.qi4j.library.rest.server.restlet;
import java.util.Collections;
import java.util.List;
import org.restlet.Context;
import org.restlet.Request;
import org.restlet.Response;
import org.restlet.Restlet;
import org.restlet.data.MediaType;
import org.restlet.data.Metadata;
import org.restlet.data.Preference;
import org.restlet.routing.Filter;
import org.restlet.service.MetadataService;
/**
* JAVADOC
*/
public class ExtensionMediaTypeFilter
extends Filter
{
public ExtensionMediaTypeFilter()
{
}
public ExtensionMediaTypeFilter( Context context )
{
super( context );
}
public ExtensionMediaTypeFilter( Context context, Restlet next )
{
super( context, next );
}
@Override
protected int beforeHandle( Request request, Response response )
{
List<String> segments = request.getResourceRef().getSegments();
if( segments.get( segments.size() - 1 ).equals( "" ) )
{
return Filter.CONTINUE;
}
String extensions = request.getResourceRef().getExtensions();
if( extensions != null )
{
int idx = extensions.lastIndexOf( "." );
if( idx != -1 )
{
extensions = extensions.substring( idx + 1 );
}
MetadataService metadataService = getApplication().getMetadataService();
Metadata metadata = metadataService.getMetadata( extensions );
if( metadata != null && metadata instanceof MediaType )
{
request.getClientInfo()
.setAcceptedMediaTypes( Collections.singletonList( new Preference<MediaType>( (MediaType) metadata ) ) );
String path = request.getResourceRef().getPath();
path = path.substring( 0, path.length() - extensions.length() - 1 );
request.getResourceRef().setPath( path );
}
}
return Filter.CONTINUE;
}
}