| /** |
| * 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.exceptions.impl.pb; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.lang.reflect.UndeclaredThrowableException; |
| |
| import org.apache.hadoop.ipc.RemoteException; |
| import org.apache.hadoop.yarn.exceptions.YarnRemoteException; |
| import org.apache.hadoop.yarn.proto.YarnProtos.YarnRemoteExceptionProto; |
| import org.apache.hadoop.yarn.proto.YarnProtos.YarnRemoteExceptionProtoOrBuilder; |
| import com.google.protobuf.ServiceException; |
| |
| public class YarnRemoteExceptionPBImpl extends YarnRemoteException { |
| |
| private static final long serialVersionUID = 1L; |
| |
| YarnRemoteExceptionProto proto = YarnRemoteExceptionProto.getDefaultInstance(); |
| YarnRemoteExceptionProto.Builder builder = null; |
| boolean viaProto = false; |
| |
| public YarnRemoteExceptionPBImpl() { |
| } |
| |
| public YarnRemoteExceptionPBImpl(YarnRemoteExceptionProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| public YarnRemoteExceptionPBImpl(String message) { |
| super(message); |
| maybeInitBuilder(); |
| builder.setMessage(super.getMessage()); |
| } |
| |
| public YarnRemoteExceptionPBImpl(Throwable t) { |
| super(t); |
| maybeInitBuilder(); |
| |
| if (t.getCause() == null) { |
| } else { |
| builder.setCause(new YarnRemoteExceptionPBImpl(t.getCause()).getProto()); |
| builder.setClassName(t.getClass().getName()); |
| } |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw); |
| t.printStackTrace(pw); |
| pw.close(); |
| if (sw.toString() != null) |
| builder.setTrace(sw.toString()); |
| if (t.getMessage() != null) |
| builder.setMessage(t.getMessage()); |
| } |
| |
| public YarnRemoteExceptionPBImpl(String message, Throwable t) { |
| this(t); |
| if (message != null) |
| builder.setMessage(message); |
| } |
| @Override |
| public String getMessage() { |
| YarnRemoteExceptionProtoOrBuilder p = viaProto ? proto : builder; |
| return p.getMessage(); |
| } |
| |
| @Override |
| public String getRemoteTrace() { |
| YarnRemoteExceptionProtoOrBuilder p = viaProto ? proto : builder; |
| return p.getTrace(); |
| } |
| |
| @Override |
| public YarnRemoteException getCause() { |
| YarnRemoteExceptionProtoOrBuilder p = viaProto ? proto : builder; |
| if (p.hasCause()) { |
| return new YarnRemoteExceptionPBImpl(p.getCause()); |
| } else { |
| return null; |
| } |
| } |
| |
| public YarnRemoteExceptionProto getProto() { |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = YarnRemoteExceptionProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| /** |
| * Utility method that unwraps and throws appropriate exception. |
| * @param se ServiceException |
| * @throws YarnRemoteException |
| * @throws UndeclaredThrowableException |
| */ |
| public static YarnRemoteException unwrapAndThrowException(ServiceException se) |
| throws UndeclaredThrowableException { |
| if (se.getCause() instanceof RemoteException) { |
| try { |
| throw ((RemoteException) se.getCause()) |
| .unwrapRemoteException(YarnRemoteExceptionPBImpl.class); |
| } catch (YarnRemoteException ex) { |
| return ex; |
| } catch (IOException e1) { |
| throw new UndeclaredThrowableException(e1); |
| } |
| } else if (se.getCause() instanceof YarnRemoteException) { |
| return (YarnRemoteException)se.getCause(); |
| } else if (se.getCause() instanceof UndeclaredThrowableException) { |
| throw (UndeclaredThrowableException)se.getCause(); |
| } else { |
| throw new UndeclaredThrowableException(se); |
| } |
| } |
| } |