001/*
002 * Licensed to DuraSpace under one or more contributor license agreements.
003 * See the NOTICE file distributed with this work for additional information
004 * regarding copyright ownership.
005 *
006 * DuraSpace licenses this file to you under the Apache License,
007 * Version 2.0 (the "License"); you may not use this file except in
008 * compliance with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.fcrepo.http.commons.exceptionhandlers;
019
020import static com.google.common.base.Throwables.getStackTraceAsString;
021import static javax.ws.rs.core.Response.serverError;
022import static org.slf4j.LoggerFactory.getLogger;
023import static org.fcrepo.http.commons.domain.RDFMediaType.TEXT_PLAIN_WITH_CHARSET;
024
025import javax.jcr.RepositoryException;
026import javax.ws.rs.core.Response;
027import javax.ws.rs.ext.ExceptionMapper;
028import javax.ws.rs.ext.Provider;
029
030import org.fcrepo.kernel.api.exception.SessionMissingException;
031import org.slf4j.Logger;
032
033/**
034 * Catch all the exceptions!
035 *
036 * @author lsitu
037 * @author awoods
038 * @author cbeer
039 * @author fasseg
040 */
041@Provider
042public class WildcardExceptionMapper implements
043        ExceptionMapper<Exception>, ExceptionDebugLogging {
044
045    Boolean showStackTrace = true;
046
047    private static final Logger LOGGER =
048        getLogger(WildcardExceptionMapper.class);
049
050    @Override
051    public Response toResponse(final Exception e) {
052        if (e.getCause() instanceof SessionMissingException) {
053            return new SessionMissingExceptionMapper()
054                    .toResponse((SessionMissingException) e.getCause());
055        }
056
057        if ( e.getCause() instanceof RepositoryException) {
058            return new RepositoryExceptionMapper()
059                    .toResponse((RepositoryException)e.getCause());
060        }
061
062        LOGGER.error("Exception intercepted by WildcardExceptionMapper: {}\n", e.getMessage());
063        debugException(this, e, LOGGER);
064        return serverError().entity(
065                showStackTrace ? getStackTraceAsString(e) : null).type(TEXT_PLAIN_WITH_CHARSET).build();
066    }
067
068    /**
069     * Set whether the full stack trace should be returned as part of the
070     * error response. This may be a bad idea if the stack trace is exposed
071     * to the public.
072     * @param showStackTrace the boolean value of showing stack trace
073     */
074    public void setShowStackTrace(final Boolean showStackTrace) {
075        this.showStackTrace = showStackTrace;
076    }
077}