/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.usergrid.rest.exceptions;


import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

import org.apache.amber.oauth2.common.exception.OAuthProblemException;
import org.apache.amber.oauth2.common.exception.OAuthSystemException;
import org.apache.amber.oauth2.common.message.OAuthResponse;

import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE;


/** <p> Mapper for OAuthProblemException. </p> */
@Provider
public class OAuthProblemExceptionMapper implements ExceptionMapper<OAuthProblemException> {

    @Override
    public Response toResponse( OAuthProblemException e ) {
        OAuthResponse res = null;
        try {
            res = OAuthResponse.errorResponse( SC_BAD_REQUEST ).error( e ).buildJSONMessage();
        }
        catch ( OAuthSystemException e1 ) {
        }
        if ( res != null ) {
            return Response.status( res.getResponseStatus() ).type( APPLICATION_JSON_TYPE ).entity( res.getBody() )
                           .build();
        }
        else {
            return Response.status( SC_BAD_REQUEST ).build();
        }
    }
}