org.apache.flink.runtime.metrics.groups.FrontMetricGroup Maven / Gradle / Ivy
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* 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
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*/
package org.apache.flink.runtime.metrics.groups;
import org.apache.flink.metrics.CharacterFilter;
import java.util.Map;
/**
* Metric group which forwards all registration calls to a variable parent metric group that injects a variable reporter
* index into calls to {@link org.apache.flink.metrics.MetricGroup#getMetricIdentifier(String)}
* or {@link org.apache.flink.metrics.MetricGroup#getMetricIdentifier(String, CharacterFilter)}.
* This allows us to use reporter-specific delimiters, without requiring any action by the reporter.
*
* @param parentMetricGroup to {@link AbstractMetricGroup AbstractMetricGroup}
*/
public class FrontMetricGroup
> extends ProxyMetricGroup
{
private final ReporterScopedSettings settings;
public FrontMetricGroup(ReporterScopedSettings settings, P reference) {
super(reference);
this.settings = settings;
}
@Override
public String getMetricIdentifier(String metricName) {
return parentMetricGroup.getMetricIdentifier(metricName, null, this.settings.getReporterIndex(), this.settings.getDelimiter());
}
@Override
public String getMetricIdentifier(String metricName, CharacterFilter filter) {
return parentMetricGroup.getMetricIdentifier(metricName, filter, this.settings.getReporterIndex(), this.settings.getDelimiter());
}
@Override
public Map getAllVariables() {
return parentMetricGroup.getAllVariables(this.settings.getReporterIndex(), this.settings.getExcludedVariables());
}
public String getLogicalScope(CharacterFilter filter) {
return parentMetricGroup.getLogicalScope(filter, this.settings.getDelimiter());
}
public String getLogicalScope(CharacterFilter filter, char delimiter) {
return parentMetricGroup.getLogicalScope(filter, delimiter, this.settings.getReporterIndex());
}
}