Brad Ebinger 51b9834180 Transplant the Logging system from Telecom
This change is the preliminary transplant of the functionality from
Telecom into android.telecom. It is currently not being used
anywhere and is not hooked into Telecom yet. It will be after this
change is committed.

Test: Refactoring CL. Existing tests still pass
Bug: 26571395
Change-Id: I406975e686c6eaab7e31b1efa426b3406c8e90cf
2016-09-30 15:01:01 -07:00

51 lines
1.6 KiB
Java

/*
* 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;
}
}