com.datastax.oss.driver.internal.core.metrics.NoopNodeMetricUpdater Maven / Gradle / Ivy
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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.
*/
package com.datastax.oss.driver.internal.core.metrics;
import com.datastax.oss.driver.api.core.metrics.NodeMetric;
import java.util.concurrent.TimeUnit;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class NoopNodeMetricUpdater implements NodeMetricUpdater {
public static NoopNodeMetricUpdater INSTANCE = new NoopNodeMetricUpdater();
private NoopNodeMetricUpdater() {}
@Override
public void incrementCounter(NodeMetric metric, String profileName, long amount) {
// nothing to do
}
@Override
public void updateHistogram(NodeMetric metric, String profileName, long value) {
// nothing to do
}
@Override
public void markMeter(NodeMetric metric, String profileName, long amount) {
// nothing to do
}
@Override
public void updateTimer(NodeMetric metric, String profileName, long duration, TimeUnit unit) {
// nothing to do
}
@Override
public boolean isEnabled(NodeMetric metric, String profileName) {
// since methods don't do anything, return false
return false;
}
@Override
public void clearMetrics() {
// nothing to do
}
}