org.elasticsearch.index.translog.TragicExceptionHolder Maven / Gradle / Ivy
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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index.translog;
import org.apache.lucene.store.AlreadyClosedException;
import org.elasticsearch.ExceptionsHelper;
import java.util.concurrent.atomic.AtomicReference;
public class TragicExceptionHolder {
private final AtomicReference tragedy = new AtomicReference<>();
/**
* Sets the tragic exception or if the tragic exception is already set adds passed exception as suppressed exception
* @param ex tragic exception to set
*/
public void setTragicException(Exception ex) {
assert ex != null;
if (tragedy.compareAndSet(null, ex)) {
return; // first exception
}
final Exception tragedy = this.tragedy.get();
// ensure no circular reference
if (ExceptionsHelper.unwrapCausesAndSuppressed(ex, e -> e == tragedy).isEmpty()) {
tragedy.addSuppressed(ex);
} else {
assert ex == tragedy || ex instanceof AlreadyClosedException : new AssertionError("must be ACE or tragic exception", ex);
}
}
public Exception get() {
return tragedy.get();
}
}