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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.docproc.jdisc;
import com.yahoo.docproc.jdisc.metric.NullMetric;
import com.yahoo.document.DocumentUtil;
import com.yahoo.jdisc.Metric;
import com.yahoo.log.LogLevel;
import com.yahoo.statistics.*;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Logger;
/**
* @author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
*/
class DocprocThreadManager {
private static Logger log = Logger.getLogger(DocprocThreadManager.class.getName());
private final long maxConcurrentByteSize;
private final AtomicLong bytesStarted = new AtomicLong(0);
private final AtomicLong bytesFinished = new AtomicLong(0);
DocprocThreadManager(double maxConcurrentFactor, double documentExpansionFactor, int containerCoreMemoryMb) {
this(maxConcurrentFactor, documentExpansionFactor, containerCoreMemoryMb, Statistics.nullImplementation,
new NullMetric());
}
DocprocThreadManager(double maxConcurrentFactor, double documentExpansionFactor, int containerCoreMemoryMb,
Statistics statistics, Metric metric) {
this((long) (((double) DocumentUtil.calculateMaxPendingSize(maxConcurrentFactor, documentExpansionFactor,
containerCoreMemoryMb)) * maxConcurrentFactor));
}
DocprocThreadManager(long maxConcurrentByteSize) {
final int MINCONCURRENTBYTES=256*1024*1024; //256M
if (maxConcurrentByteSize < MINCONCURRENTBYTES) {
maxConcurrentByteSize = MINCONCURRENTBYTES;
}
this.maxConcurrentByteSize = maxConcurrentByteSize;
log.log(LogLevel.CONFIG, "Docproc service allowed to concurrently process "
+ (((double) maxConcurrentByteSize) / 1024.0d / 1024.0d) + " megabytes of input data.");
}
boolean isAboveLimit() {
return (bytesFinished.get() - bytesStarted.get() > maxConcurrentByteSize);
}
void beforeExecute(DocumentProcessingTask task) {
bytesStarted.getAndAdd(task.getApproxSize());
}
void afterExecute(DocumentProcessingTask task) {
bytesFinished.getAndAdd(task.getApproxSize());
}
void shutdown() {
}
}
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