001/**
002 * Copyright 2015 DuraSpace, Inc.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.fcrepo.http.commons.exceptionhandlers;
017
018import org.glassfish.jersey.server.ParamException;
019import org.slf4j.Logger;
020
021import javax.ws.rs.core.Response;
022import javax.ws.rs.ext.ExceptionMapper;
023import javax.ws.rs.ext.Provider;
024
025import static javax.ws.rs.core.Response.fromResponse;
026import static org.slf4j.LoggerFactory.getLogger;
027
028/**
029 * Handle Jersey ParamException
030 *
031 * @author awoods
032 * @since 2015-01-20
033 */
034@Provider
035public class ParamExceptionMapper implements ExceptionMapper<ParamException> {
036
037    private static final Logger LOGGER = getLogger(ParamExceptionMapper.class);
038
039    @Override
040    public Response toResponse(final ParamException e) {
041        LOGGER.debug("ParamException intercepted by ParamExceptionMapper: \n", e);
042
043        final StringBuilder msg = new StringBuilder("Error parsing parameter: ");
044        msg.append(e.getParameterName());
045        msg.append(", of type: ");
046        msg.append(e.getParameterType().getSimpleName());
047
048        return fromResponse(e.getResponse()).entity(msg.toString()).build();
049    }
050
051}