/*
* 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.flink.runtime.util;
import org.apache.flink.runtime.rpc.FatalErrorHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.atomic.AtomicReference;
/**
* Testing fatal error handler which records the occurred exceptions during the execution of the
* tests. Captured exceptions are thrown as a {@link TestingException}.
*/
public class TestingFatalErrorHandler implements FatalErrorHandler {
private static final Logger LOG = LoggerFactory.getLogger(TestingFatalErrorHandler.class);
private final AtomicReference<Throwable> atomicThrowable;
public TestingFatalErrorHandler() {
atomicThrowable = new AtomicReference<>(null);
}
public void rethrowError() throws TestingException {
Throwable throwable = atomicThrowable.get();
if (throwable != null) {
throw new TestingException(throwable);
}
}
public boolean hasExceptionOccurred() {
return atomicThrowable.get() != null;
}
public Throwable getException() {
return atomicThrowable.get();
}
@Override
public void onFatalError(Throwable exception) {
LOG.error("OnFatalError:", exception);
if (!atomicThrowable.compareAndSet(null, exception)) {
atomicThrowable.get().addSuppressed(exception);
}
}
//------------------------------------------------------------------
// static utility classes
//------------------------------------------------------------------
private static final class TestingException extends Exception {
public TestingException(String message) {
super(message);
}
public TestingException(String message, Throwable cause) {
super(message, cause);
}
public TestingException(Throwable cause) {
super(cause);
}
private static final long serialVersionUID = -4648195335470914498L;
}
}