/**
* 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.tajo.storage.v2;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.concurrent.atomic.AtomicInteger;
public class FileScanRunner extends Thread {
private static final Log LOG = LogFactory.getLog(FileScanRunner.class);
StorageManagerV2.StorgaeManagerContext smContext;
FileScannerV2 fileScanner;
Object requestQueueMonitor;
AtomicInteger numOfRunningScanners;
DiskFileScanScheduler diskFileScanScheduler;
int maxReadBytes;
public FileScanRunner(DiskFileScanScheduler diskFileScanScheduler,
StorageManagerV2.StorgaeManagerContext smContext,
FileScannerV2 fileScanner, Object requestQueueMonitor,
AtomicInteger numOfRunningScanners) {
super("FileScanRunner:" + fileScanner.getId());
this.diskFileScanScheduler = diskFileScanScheduler;
this.fileScanner = fileScanner;
this.smContext = smContext;
this.requestQueueMonitor = requestQueueMonitor;
this.numOfRunningScanners = numOfRunningScanners;
this.maxReadBytes = smContext.getMaxReadBytesPerScheduleSlot();
}
public void run() {
try {
// long startTime = System.currentTimeMillis();
// boolean fetching = fileScanner.isFetchProcessing();
fileScanner.scan(maxReadBytes);
// if(diskFileScanScheduler.getDiskId() == 1) {
// LOG.info("========>" + diskFileScanScheduler.getDiskId() + "," + fileScanner.getId() +
// ",fetching=" + fetching +
// ", scanTime:" + (System.currentTimeMillis() - startTime) + " ms");
// }
} catch (Exception e) {
LOG.error(e.getMessage(), e);
} finally {
synchronized(requestQueueMonitor) {
numOfRunningScanners.decrementAndGet();
requestQueueMonitor.notifyAll();
}
}
}
}