| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.yarn.webapp; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| |
| import javax.servlet.http.HttpServletResponse; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.Context; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.ext.ExceptionMapper; |
| import javax.ws.rs.ext.Provider; |
| import javax.xml.bind.UnmarshalException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.ipc.RemoteException; |
| import org.apache.hadoop.security.authorize.AuthorizationException; |
| |
| import com.google.inject.Singleton; |
| |
| /** |
| * Handle webservices jersey exceptions and create json or xml response |
| * with the ExceptionData. |
| */ |
| @InterfaceAudience.LimitedPrivate({"YARN", "MapReduce"}) |
| @Singleton |
| @Provider |
| public class GenericExceptionHandler implements ExceptionMapper<Exception> { |
| public static final Log LOG = LogFactory |
| .getLog(GenericExceptionHandler.class); |
| |
| private @Context |
| HttpServletResponse response; |
| |
| @Override |
| public Response toResponse(Exception e) { |
| if (LOG.isTraceEnabled()) { |
| LOG.trace("GOT EXCEPITION", e); |
| } |
| // Don't catch this as filter forward on 404 |
| // (ServletContainer.FEATURE_FILTER_FORWARD_ON_404) |
| // won't work and the web UI won't work! |
| if (e instanceof com.sun.jersey.api.NotFoundException) { |
| return ((com.sun.jersey.api.NotFoundException) e).getResponse(); |
| } |
| // clear content type |
| response.setContentType(null); |
| |
| // Convert exception |
| if (e instanceof RemoteException) { |
| e = ((RemoteException) e).unwrapRemoteException(); |
| } |
| |
| // Map response status |
| final Response.Status s; |
| if (e instanceof SecurityException) { |
| s = Response.Status.UNAUTHORIZED; |
| } else if (e instanceof AuthorizationException) { |
| s = Response.Status.UNAUTHORIZED; |
| } else if (e instanceof FileNotFoundException) { |
| s = Response.Status.NOT_FOUND; |
| } else if (e instanceof NotFoundException) { |
| s = Response.Status.NOT_FOUND; |
| } else if (e instanceof IOException) { |
| s = Response.Status.NOT_FOUND; |
| } else if (e instanceof ForbiddenException) { |
| s = Response.Status.FORBIDDEN; |
| } else if (e instanceof UnsupportedOperationException) { |
| s = Response.Status.BAD_REQUEST; |
| } else if (e instanceof IllegalArgumentException) { |
| s = Response.Status.BAD_REQUEST; |
| } else if (e instanceof NumberFormatException) { |
| s = Response.Status.BAD_REQUEST; |
| } else if (e instanceof BadRequestException) { |
| s = Response.Status.BAD_REQUEST; |
| } else if (e instanceof WebApplicationException |
| && e.getCause() instanceof UnmarshalException) { |
| s = Response.Status.BAD_REQUEST; |
| } else { |
| LOG.warn("INTERNAL_SERVER_ERROR", e); |
| s = Response.Status.INTERNAL_SERVER_ERROR; |
| } |
| |
| // let jaxb handle marshalling data out in the same format requested |
| RemoteExceptionData exception = new RemoteExceptionData(e.getClass().getSimpleName(), |
| e.getMessage(), e.getClass().getName()); |
| |
| return Response.status(s).entity(exception) |
| .build(); |
| } |
| } |