org.apache.flink.runtime.metrics.groups.GenericValueMetricGroup 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.runtime.metrics.groups;
import org.apache.flink.annotation.Internal;
import org.apache.flink.metrics.CharacterFilter;
import org.apache.flink.metrics.MetricGroup;
import org.apache.flink.runtime.metrics.MetricRegistry;
import org.apache.flink.runtime.metrics.scope.ScopeFormat;
import java.util.Map;
/**
* A {@link GenericMetricGroup} for representing the value part of a key-value metric group pair.
*
* @see GenericKeyMetricGroup
* @see MetricGroup#addGroup(String, String)
*/
@Internal
public class GenericValueMetricGroup extends GenericMetricGroup {
private String key;
private final String value;
GenericValueMetricGroup(MetricRegistry registry, GenericKeyMetricGroup parent, String value) {
super(registry, parent, value);
this.key = parent.getGroupName(name -> name);
this.value = value;
}
// ------------------------------------------------------------------------
@Override
protected void putVariables(Map variables) {
variables.put(ScopeFormat.asVariable(this.key), value);
}
@Override
protected String createLogicalScope(CharacterFilter filter, char delimiter) {
return parent.getLogicalScope(filter, delimiter);
}
}