/*
* 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.hive.hcatalog.streaming.mutate.client.lock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/** Provides a means to handle the situation when a held lock fails. */
public interface LockFailureListener {
static final Logger LOG = LoggerFactory.getLogger(LockFailureListener.class);
static final LockFailureListener NULL_LISTENER = new LockFailureListener() {
@Override
public void lockFailed(long lockId, Long transactionId, Iterable<String> tableNames, Throwable t) {
LOG.warn(
"Ignored lock failure: lockId=" + lockId + ", transactionId=" + transactionId + ", tables=" + tableNames, t);
}
public String toString() {
return LockFailureListener.class.getName() + ".NULL_LISTENER";
}
};
/** Called when the specified lock has failed. You should probably abort your job in this case. */
void lockFailed(long lockId, Long transactionId, Iterable<String> tableNames, Throwable t);
}