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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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.ratis.grpc.metrics;
import org.apache.ratis.metrics.LongCounter;
import org.apache.ratis.metrics.MetricRegistryInfo;
import org.apache.ratis.metrics.RatisMetricRegistry;
import org.apache.ratis.metrics.RatisMetrics;
import org.apache.ratis.thirdparty.com.google.common.annotations.VisibleForTesting;
import org.apache.ratis.thirdparty.com.google.protobuf.AbstractMessage;
public class ZeroCopyMetrics extends RatisMetrics {
private static final String RATIS_GRPC_METRICS_APP_NAME = "ratis_grpc";
private static final String RATIS_GRPC_METRICS_COMP_NAME = "zero_copy";
private static final String RATIS_GRPC_METRICS_DESC = "Metrics for Ratis Grpc Zero copy";
private final LongCounter zeroCopyMessages = getRegistry().counter("num_zero_copy_messages");
private final LongCounter nonZeroCopyMessages = getRegistry().counter("num_non_zero_copy_messages");
private final LongCounter releasedMessages = getRegistry().counter("num_released_messages");
public ZeroCopyMetrics() {
super(createRegistry());
}
private static RatisMetricRegistry createRegistry() {
return create(new MetricRegistryInfo("",
RATIS_GRPC_METRICS_APP_NAME,
RATIS_GRPC_METRICS_COMP_NAME, RATIS_GRPC_METRICS_DESC));
}
public void onZeroCopyMessage(AbstractMessage ignored) {
zeroCopyMessages.inc();
}
public void onNonZeroCopyMessage(AbstractMessage ignored) {
nonZeroCopyMessages.inc();
}
public void onReleasedMessage(AbstractMessage ignored) {
releasedMessages.inc();
}
@VisibleForTesting
public long zeroCopyMessages() {
return zeroCopyMessages.getCount();
}
@VisibleForTesting
public long nonZeroCopyMessages() {
return nonZeroCopyMessages.getCount();
}
@VisibleForTesting
public long releasedMessages() {
return releasedMessages.getCount();
}
}