scylla-jmx/src/main/java/org/apache/cassandra/metrics/DroppedMessageMetrics.java

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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
*
* 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.
*/
/*
* Copyright (C) 2015 ScyllaDB
*/
/*
* Moddified by ScyllaDB
*/
package org.apache.cassandra.metrics;
import java.util.concurrent.TimeUnit;
import org.apache.cassandra.net.MessagingService;
import com.scylladb.jmx.metrics.APIMetrics;
import com.scylladb.jmx.metrics.DefaultNameFactory;
import com.scylladb.jmx.metrics.MetricNameFactory;
import com.yammer.metrics.core.APISettableMeter;
/**
* Metrics for dropped messages by verb.
*/
public class DroppedMessageMetrics {
/** Number of dropped messages */
public final APISettableMeter dropped;
private long lastDropped = 0;
public DroppedMessageMetrics(MessagingService.Verb verb) {
MetricNameFactory factory = new DefaultNameFactory("DroppedMessage",
verb.toString());
dropped = (APISettableMeter) APIMetrics.newSettableMeter(
factory.createMetricName("Dropped"), "dropped",
TimeUnit.SECONDS);
dropped.stop();
}
@Deprecated
public int getRecentlyDropped() {
long currentDropped = dropped.count();
long recentlyDropped = currentDropped - lastDropped;
lastDropped = currentDropped;
return (int) recentlyDropped;
}
public APISettableMeter getMeter() {
return dropped;
}
}