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.fcrepo.kernel.exception.RepositoryRuntimeException; 019 020import org.slf4j.Logger; 021 022import javax.ws.rs.core.Context; 023import javax.ws.rs.core.Response; 024import javax.ws.rs.ext.ExceptionMapper; 025import javax.ws.rs.ext.Provider; 026import javax.ws.rs.ext.Providers; 027 028import static com.google.common.base.Throwables.getStackTraceAsString; 029import static javax.ws.rs.core.Response.serverError; 030import static org.slf4j.LoggerFactory.getLogger; 031 032/** 033 * @author cabeer 034 * @since 9/13/14 035 */ 036 037@Provider 038public class RepositoryRuntimeExceptionMapper implements 039 ExceptionMapper<RepositoryRuntimeException> { 040 041 private final Providers providers; 042 043 /** 044 * Get the context Providers so we can rethrow the cause to an appropriate handler 045 * @param providers 046 */ 047 public RepositoryRuntimeExceptionMapper(@Context final Providers providers) { 048 this.providers = providers; 049 } 050 051 private static final Logger LOGGER = getLogger(RepositoryExceptionMapper.class); 052 053 @Override 054 public Response toResponse(final RepositoryRuntimeException e) { 055 final Throwable cause = e.getCause(); 056 @SuppressWarnings("unchecked") 057 final ExceptionMapper<Throwable> exceptionMapper = 058 (ExceptionMapper<Throwable>) providers.getExceptionMapper(cause.getClass()); 059 if (exceptionMapper != null) { 060 return exceptionMapper.toResponse(cause); 061 } 062 LOGGER.warn("Caught repository exception: {}", e.getMessage()); 063 return serverError().entity(getStackTraceAsString(e)).build(); 064 } 065}