001/*
002 * (C) Copyright 2006-2010 Nuxeo SA (http://nuxeo.com/) and others.
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 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.webengine.app;
020
021import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE;
022
023import javax.ws.rs.core.Context;
024import javax.ws.rs.core.HttpHeaders;
025import javax.ws.rs.core.Response;
026import javax.ws.rs.core.Response.Status;
027import javax.ws.rs.ext.ExceptionMapper;
028import javax.ws.rs.ext.Provider;
029
030import org.apache.commons.logging.Log;
031import org.apache.commons.logging.LogFactory;
032import org.nuxeo.ecm.core.api.validation.DocumentValidationException;
033import org.nuxeo.ecm.webengine.WebException;
034import org.nuxeo.ecm.webengine.model.exceptions.WebResourceNotFoundException;
035import org.nuxeo.runtime.transaction.TransactionHelper;
036
037import com.sun.jersey.api.NotFoundException;
038
039/**
040 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
041 */
042@Provider
043public class WebEngineExceptionMapper implements ExceptionMapper<Throwable> {
044
045    @Context
046    HttpHeaders headers;
047
048    protected static final Log log = LogFactory.getLog(WebEngineExceptionMapper.class);
049
050    @Override
051    public Response toResponse(Throwable cause) {
052        TransactionHelper.setTransactionRollbackOnly();
053        if (headers.getAcceptableMediaTypes().contains(APPLICATION_JSON_TYPE)) {
054            if (cause instanceof DocumentValidationException) {
055                DocumentValidationException dve = (DocumentValidationException) cause;
056                return Response.status(Status.BAD_REQUEST).entity(dve.getReport()).build();
057            }
058        }
059        if (cause instanceof NotFoundException) {
060            NotFoundException nfe = (NotFoundException) cause;
061            log.debug("JAX-RS 404 Not Found: " + nfe.getNotFoundUri());
062        } else if (cause instanceof WebResourceNotFoundException) {
063            WebResourceNotFoundException nfe = (WebResourceNotFoundException) cause;
064            log.debug("JAX-RS 404 Not Found: " + nfe.getMessage());
065        } else {
066            log.warn("Exception in JAX-RS processing", cause);
067        }
068        return WebException.newException(cause.getMessage(), WebException.wrap(cause)).toResponse();
069    }
070
071}