2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 package org.onap.aai.sparky.sync;
23 import java.util.concurrent.atomic.AtomicInteger;
25 import org.onap.aai.sparky.analytics.AveragingRingBuffer;
26 import org.onap.aai.sparky.sync.config.NetworkStatisticsConfig;
28 public class TransactionRateMonitor {
30 private AtomicInteger numTransactions;
31 private AveragingRingBuffer responseTimeTracker;
32 private long startTimeInMs;
35 * Instantiates a new transaction rate controller.
37 * @param config the config
39 public TransactionRateMonitor(int numWorkerThreads, NetworkStatisticsConfig config) {
41 this.responseTimeTracker = new AveragingRingBuffer(
42 config.getNumSamplesPerThreadForRunningAverage() * numWorkerThreads);
43 this.startTimeInMs = System.currentTimeMillis();
44 this.numTransactions = new AtomicInteger(0);
48 * Track response time.
50 * @param responseTimeInMs the response time in ms
52 public void trackResponseTime(long responseTimeInMs) {
53 this.numTransactions.incrementAndGet();
54 responseTimeTracker.addSample(responseTimeInMs);
57 public long getAvg() {
58 return responseTimeTracker.getAvg();
61 public double getCurrentTps() {
62 if (numTransactions.get() > 0) {
63 long timeDelta = System.currentTimeMillis() - startTimeInMs;
64 double numTxns = numTransactions.get();
65 return (numTxns / timeDelta) * 1000.0;