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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.utils.util;
import java.util.Map;
import java.util.TreeMap;
/**
* Metric reporter wrapper to add component name prefix and common dimensions.
*/
public class ComponentMetricReporter implements MetricReporter {
private final MetricReporter impl;
private final String prefix;
private final Map<String, String> defaultDimensions = new TreeMap<>();
private Context defaultContext;
public ComponentMetricReporter(MetricReporter impl, String prefix) {
this.impl = impl;
this.prefix = prefix;
defaultContext = impl.createContext(defaultDimensions);
}
public ComponentMetricReporter addDimension(String key, String value) {
defaultDimensions.put(key, value);
defaultContext = impl.createContext(defaultDimensions);
return this;
}
public void set(String name, Number value) {
impl.set(prefix + name, value, defaultContext);
}
public void add(String name, Number value) {
impl.add(prefix + name, value, defaultContext);
}
@Override
public void set(String name, Number value, Context context) {
impl.set(prefix + name, value, context);
}
@Override
public void add(String name, Number value, Context context) {
impl.add(prefix + name, value, context);
}
@Override
public Context createContext(Map<String, ?> stringMap) {
if (stringMap == null) return defaultContext;
Map<String, Object> m = new TreeMap<>(stringMap);
for(String key : defaultDimensions.keySet()) {
if (!m.containsKey(key)) m.put(key, defaultDimensions.get(key));
}
return impl.createContext(m);
}
}
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