org.apache.flink.runtime.metrics.NoOpMetricRegistry Maven / Gradle / Ivy
/*
* 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 org.apache.flink.runtime.metrics;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.metrics.Metric;
import org.apache.flink.runtime.metrics.groups.AbstractMetricGroup;
import org.apache.flink.runtime.metrics.scope.ScopeFormats;
/**
* Metric registry which does nothing.
*/
public class NoOpMetricRegistry implements MetricRegistry {
private static final char delimiter = '.';
private static final ScopeFormats scopeFormats = ScopeFormats.fromConfig(new Configuration());
public static final MetricRegistry INSTANCE = new NoOpMetricRegistry();
private NoOpMetricRegistry() {
}
@Override
public char getDelimiter() {
return delimiter;
}
@Override
public int getNumberReporters() {
return 0;
}
@Override
public void register(Metric metric, String metricName, AbstractMetricGroup group) {
}
@Override
public void unregister(Metric metric, String metricName, AbstractMetricGroup group) {
}
@Override
public ScopeFormats getScopeFormats() {
return scopeFormats;
}
}