/**
* 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);
}
}
}