| /* |
| * |
| * 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.hbase.rest; |
| |
| import java.io.IOException; |
| |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.Response; |
| |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.apache.hadoop.hbase.TableNotFoundException; |
| import org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException; |
| import org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException; |
| import org.apache.hadoop.util.StringUtils; |
| |
| @InterfaceAudience.Private |
| public class ResourceBase implements Constants { |
| |
| RESTServlet servlet; |
| Class<?> accessDeniedClazz; |
| |
| public ResourceBase() throws IOException { |
| servlet = RESTServlet.getInstance(); |
| try { |
| accessDeniedClazz = Class.forName("org.apache.hadoop.hbase.security.AccessDeniedException"); |
| } catch (ClassNotFoundException e) { |
| } |
| } |
| |
| protected Response processException(Throwable exp) { |
| Throwable curr = exp; |
| if(accessDeniedClazz != null) { |
| //some access denied exceptions are buried |
| while (curr != null) { |
| if(accessDeniedClazz.isAssignableFrom(curr.getClass())) { |
| throw new WebApplicationException( |
| Response.status(Response.Status.FORBIDDEN) |
| .type(MIMETYPE_TEXT).entity("Forbidden" + CRLF + |
| StringUtils.stringifyException(exp) + CRLF) |
| .build()); |
| } |
| curr = curr.getCause(); |
| } |
| } |
| //TableNotFound may also be buried one level deep |
| if (exp instanceof TableNotFoundException || |
| exp.getCause() instanceof TableNotFoundException) { |
| throw new WebApplicationException( |
| Response.status(Response.Status.NOT_FOUND) |
| .type(MIMETYPE_TEXT).entity("Not found" + CRLF + |
| StringUtils.stringifyException(exp) + CRLF) |
| .build()); |
| } |
| if (exp instanceof NoSuchColumnFamilyException){ |
| throw new WebApplicationException( |
| Response.status(Response.Status.NOT_FOUND) |
| .type(MIMETYPE_TEXT).entity("Not found" + CRLF + |
| StringUtils.stringifyException(exp) + CRLF) |
| .build()); |
| } |
| if (exp instanceof RuntimeException) { |
| throw new WebApplicationException( |
| Response.status(Response.Status.BAD_REQUEST) |
| .type(MIMETYPE_TEXT).entity("Bad request" + CRLF + |
| StringUtils.stringifyException(exp) + CRLF) |
| .build()); |
| } |
| if (exp instanceof RetriesExhaustedWithDetailsException) { |
| RetriesExhaustedWithDetailsException retryException = |
| (RetriesExhaustedWithDetailsException) exp; |
| processException(retryException.getCause(0)); |
| } |
| throw new WebApplicationException( |
| Response.status(Response.Status.SERVICE_UNAVAILABLE) |
| .type(MIMETYPE_TEXT).entity("Unavailable" + CRLF + |
| StringUtils.stringifyException(exp) + CRLF) |
| .build()); |
| } |
| } |