blob: 6785e92de6d83af5aa6962f744157cdaeebee2b7 [file] [log] [blame]
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed 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 android.telecom.Logging;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
/**
* @hide
*/
public abstract class TimedEvent<T> {
public abstract long getTime();
public abstract T getKey();
public static <T> Map<T, Double> averageTimings(Collection<? extends TimedEvent<T>> events) {
HashMap<T, Integer> counts = new HashMap<>();
HashMap<T, Double> result = new HashMap<>();
for (TimedEvent<T> entry : events) {
if (counts.containsKey(entry.getKey())) {
counts.put(entry.getKey(), counts.get(entry.getKey()) + 1);
result.put(entry.getKey(), result.get(entry.getKey()) + entry.getTime());
} else {
counts.put(entry.getKey(), 1);
result.put(entry.getKey(), (double) entry.getTime());
}
}
for (Map.Entry<T, Double> entry : result.entrySet()) {
result.put(entry.getKey(), entry.getValue() / counts.get(entry.getKey()));
}
return result;
}
}