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/*
* (c) Copyright 2018 Palantir Technologies Inc. All rights reserved.
*
* Licensed 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 com.palantir.atlasdb.qos.metrics;
import com.codahale.metrics.Meter;
import com.palantir.atlasdb.keyvalue.cassandra.thrift.QueryWeight;
import com.palantir.atlasdb.util.MetricsManager;
// TODO(nziebart): needs tests
public class QosMetrics {
private final Meter readRequestCount;
private final Meter bytesRead;
private final Meter readTime;
private final Meter rowsRead;
private final Meter writeRequestCount;
private final Meter bytesWritten;
private final Meter writeTime;
private final Meter rowsWritten;
public QosMetrics(MetricsManager metricsManager) {
readRequestCount = metricsManager.registerOrGetMeter(QosMetrics.class, "numReadRequests");
bytesRead = metricsManager.registerOrGetMeter(QosMetrics.class, "bytesRead");
readTime = metricsManager.registerOrGetMeter(QosMetrics.class, "readTime");
rowsRead = metricsManager.registerOrGetMeter(QosMetrics.class, "rowsRead");
writeRequestCount = metricsManager.registerOrGetMeter(QosMetrics.class, "numWriteRequests");
bytesWritten = metricsManager.registerOrGetMeter(QosMetrics.class, "bytesWritten");
writeTime = metricsManager.registerOrGetMeter(QosMetrics.class, "writeTime");
rowsWritten = metricsManager.registerOrGetMeter(QosMetrics.class, "rowsWritten");
}
public void recordRead(QueryWeight weight) {
readRequestCount.mark();
bytesRead.mark(weight.numBytes());
readTime.mark(weight.timeTakenMicros());
rowsRead.mark(weight.numDistinctRows());
}
public void recordWrite(QueryWeight weight) {
writeRequestCount.mark();
bytesWritten.mark(weight.numBytes());
writeTime.mark(weight.timeTakenMicros());
rowsWritten.mark(weight.numDistinctRows());
}
}