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 static javax.ws.rs.core.Response.status;
019import static javax.ws.rs.core.Response.Status.GONE;
020import javax.ws.rs.core.Response;
021import javax.ws.rs.ext.ExceptionMapper;
022import javax.ws.rs.ext.Provider;
023
024import org.fcrepo.kernel.exception.TransactionMissingException;
025
026/**
027 * If a transaction is requested that has been closed (or never existed), just
028 * return an HTTP 410 Gone.
029 *
030 * @author awoods
031 */
032@Provider
033public class TransactionMissingExceptionMapper implements
034        ExceptionMapper<TransactionMissingException> {
035
036    @Override
037    public Response toResponse(final TransactionMissingException exception) {
038        return status(GONE).entity(exception.getMessage()).build();
039    }
040}