org.apache.flink.runtime.io.network.metrics.ExclusiveBuffersUsageGauge Maven / Gradle / Ivy
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* 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
*
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package org.apache.flink.runtime.io.network.metrics;
import org.apache.flink.runtime.io.network.partition.consumer.InputChannel;
import org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel;
import org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate;
import static org.apache.flink.util.Preconditions.checkNotNull;
/**
* Gauge metric measuring the exclusive buffers usage gauge for {@link SingleInputGate}s.
*/
public class ExclusiveBuffersUsageGauge extends AbstractBuffersUsageGauge {
public ExclusiveBuffersUsageGauge(SingleInputGate[] inputGates) {
super(checkNotNull(inputGates));
}
@Override
public int calculateUsedBuffers(SingleInputGate inputGate) {
int usedBuffers = 0;
for (InputChannel ic : inputGate.getInputChannels().values()) {
if (ic instanceof RemoteInputChannel) {
usedBuffers += ((RemoteInputChannel) ic).unsynchronizedGetExclusiveBuffersUsed();
}
}
return usedBuffers;
}
@Override
public int calculateTotalBuffers(SingleInputGate inputGate) {
int totalExclusiveBuffers = 0;
for (InputChannel ic : inputGate.getInputChannels().values()) {
if (ic instanceof RemoteInputChannel) {
totalExclusiveBuffers += ((RemoteInputChannel) ic).getInitialCredit();
}
}
return totalExclusiveBuffers;
}
}