org.apache.phoenix.log.QueryLogDetailsEventHandler Maven / Gradle / Ivy
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/*
* 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.phoenix.log;
import java.sql.SQLException;
import org.apache.hadoop.conf.Configuration;
import com.lmax.disruptor.LifecycleAware;
import com.lmax.disruptor.Sequence;
import com.lmax.disruptor.SequenceReportingEventHandler;
public class QueryLogDetailsEventHandler implements SequenceReportingEventHandler, LifecycleAware {
private Sequence sequenceCallback;
private LogWriter logWriter;
public QueryLogDetailsEventHandler(Configuration configuration) throws SQLException{
this.logWriter = new TableLogWriter(configuration);
}
@Override
public void setSequenceCallback(final Sequence sequenceCallback) {
this.sequenceCallback = sequenceCallback;
}
@Override
public void onEvent(final RingBufferEvent event, final long sequence, final boolean endOfBatch) throws Exception {
logWriter.write(event);
event.clear();
}
@Override
public void onStart() {
}
@Override
public void onShutdown() {
try {
if (logWriter != null) {
logWriter.close();
}
} catch (Exception e) {
//Ignore
}
}
}