2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.policy.xacml.util;
22 public class MetricsUtil {
24 private MetricsUtil() {
26 // private constructor to hide the implicit public one for utility class
30 public static class AvgLatency {
31 private long cumLatency = 0;
32 private long count = 0;
34 public void compute(long latency) {
35 cumLatency += latency;
43 return cumLatency / count;
52 public static class MinLatency {
53 private long min = Long.MAX_VALUE;
55 public synchronized void compute(long ts) {
69 public static class MaxLatency {
70 private long max = Long.MIN_VALUE;
72 public synchronized void compute(long ts) {