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 org.fcrepo.http.commons.domain.RDFMediaType.TEXT_PLAIN_WITH_CHARSET;
021import static org.slf4j.LoggerFactory.getLogger;
022
023import static javax.ws.rs.core.Response.Status.CONFLICT;
024import static javax.ws.rs.core.Response.status;
025
026import javax.servlet.ServletContext;
027import javax.ws.rs.core.Context;
028import javax.ws.rs.core.Link;
029import javax.ws.rs.core.Response;
030import javax.ws.rs.core.UriInfo;
031import javax.ws.rs.ext.Provider;
032
033import org.fcrepo.kernel.api.exception.ConstraintViolationException;
034import org.fcrepo.kernel.api.exception.MultipleConstraintViolationException;
035import org.fcrepo.kernel.api.exception.RelaxableServerManagedPropertyException;
036import org.fcrepo.kernel.api.exception.ServerManagedPropertyException;
037
038import org.slf4j.Logger;
039
040/**
041 * Mapper to display all the various constrainedby links and messages.
042 * @author whikloj
043 */
044@Provider
045public class MultipleConstraintViolationExceptionMapper extends
046        ConstraintExceptionMapper<MultipleConstraintViolationException> implements ExceptionDebugLogging {
047
048    private static final Logger LOGGER = getLogger(MultipleConstraintViolationExceptionMapper.class);
049
050    @Context
051    private UriInfo uriInfo;
052
053    @Context
054    private ServletContext context;
055
056    @Override
057    public Response toResponse(final MultipleConstraintViolationException e) {
058        debugException(this, e, LOGGER);
059
060        final String msg = e.getMessage();
061        final Response.ResponseBuilder response = status(CONFLICT).entity(msg).type(TEXT_PLAIN_WITH_CHARSET);
062        final Link[] constraintLinks = e.getExceptionTypes().stream().map(ConstraintViolationException::getClass)
063                .distinct().map(c -> {
064                    // Avoid building a link with the relaxable sub-class which would require another constraint RDF
065                    // file.
066                    if (c.equals(RelaxableServerManagedPropertyException.class)) {
067                        return ServerManagedPropertyException.class;
068                    }
069                    return c;
070                }).map(c -> buildConstraintLink(c,
071                        context,
072                        uriInfo))
073                .toArray(Link[]::new);
074        return response.links(constraintLinks).build();
075    }
076
077}