| /* |
| * 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.pulsar.broker.web; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.Response.Status; |
| import org.apache.pulsar.client.admin.PulsarAdminException; |
| import org.apache.pulsar.common.policies.data.ErrorData; |
| |
| /** |
| * Exception used to provide better error messages to clients of the REST API. |
| */ |
| public class RestException extends WebApplicationException { |
| private Throwable cause = null; |
| static String getExceptionData(Throwable t) { |
| StringWriter writer = new StringWriter(); |
| writer.append("\n --- An unexpected error occurred in the server ---\n\n"); |
| if (t != null) { |
| writer.append("Message: ").append(t.getMessage()).append("\n\n"); |
| writer.append("Stacktrace:\n\n"); |
| t.printStackTrace(new PrintWriter(writer)); |
| } |
| return writer.toString(); |
| } |
| |
| public RestException(Response.Status status, String message) { |
| this(status.getStatusCode(), message); |
| } |
| |
| public RestException(int code, String message) { |
| super(message, Response |
| .status(code, message) |
| .entity(new ErrorData(message)) |
| .type(MediaType.APPLICATION_JSON) |
| .build()); |
| } |
| |
| public RestException(Throwable t) { |
| super(getResponse(t)); |
| } |
| |
| public RestException(Response.Status status, Throwable t) { |
| this(status.getStatusCode(), t.getMessage()); |
| this.cause = t; |
| } |
| |
| @Override |
| public Throwable getCause() { |
| return cause; |
| } |
| |
| public RestException(PulsarAdminException cae) { |
| this(cae.getStatusCode(), cae.getHttpError()); |
| } |
| |
| private static Response getResponse(Throwable t) { |
| if (t instanceof WebApplicationException e) { |
| return e.getResponse(); |
| } else { |
| return Response |
| .status(Status.INTERNAL_SERVER_ERROR.getStatusCode(), t.getMessage()) |
| .entity(new ErrorData(getExceptionData(t))) |
| .type(MediaType.APPLICATION_JSON) |
| .build(); |
| } |
| } |
| } |