bpmn/MSOCommonBPMN/src/test/java/org/onap/so/client/restproperties/ThreadedReadTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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=========================================================
  19  */
  20
  21 package org.onap.so.client.restproperties;
  22
  23 import static org.hamcrest.CoreMatchers.equalTo;
  24 import static org.junit.Assert.assertThat;
  25
  26 import java.util.ArrayList;
  27 import java.util.HashSet;
  28 import java.util.List;
  29 import java.util.Set;
  30 import java.util.concurrent.Callable;
  31 import java.util.concurrent.ExecutionException;
  32 import java.util.concurrent.ExecutorService;
  33 import java.util.concurrent.Executors;
  34 import java.util.concurrent.Future;
  35 import java.util.concurrent.ScheduledExecutorService;
  36 import java.util.concurrent.TimeUnit;
  37
  38 import org.junit.Test;
  39 import org.onap.so.client.RestPropertiesLoader;
  40 import org.onap.so.client.aai.AAIProperties;
  41 import org.onap.so.BaseTest;
  42
  43 public class ThreadedReadTest {
  44         @Test
  45         public void allAtOnce() throws InterruptedException {
  46                 ExecutorService executorService = Executors.newFixedThreadPool(10);
  47
  48                 Callable<AAIProperties> callableTask = () -> {
  49                         return RestPropertiesLoader.getInstance().getNewImpl(AAIProperties.class);
  50                 };
  51                 List<Callable<AAIProperties>> callableTasks = new ArrayList<>();
  52
  53                 callableTasks.add(callableTask);
  54                 callableTasks.add(callableTask);
  55                 callableTasks.add(callableTask);
  56                 callableTasks.add(callableTask);
  57                 callableTasks.add(callableTask);
  58
  59                 List<Future<AAIProperties>> futures = executorService.invokeAll(callableTasks);
  60
  61                 Set<AAIProperties> results = new HashSet<>();
  62                 futures.forEach(item -> {
  63                         try {
  64                                 results.add(item.get());
  65                         } catch (InterruptedException | ExecutionException e) {
  66                                 throw new RuntimeException(e);
  67                         }
  68                 });
  69
  70                 assertThat("expect all unique results", results.size(), equalTo(callableTasks.size()));
  71
  72         }
  73
  74         @Test
  75         public void executeOverTime() {
  76                 ScheduledExecutorService executorService = Executors.newScheduledThreadPool(10);
  77
  78                 Callable<AAIProperties> callableTask = () -> {
  79                         TimeUnit.MILLISECONDS.sleep(500);
  80                         return RestPropertiesLoader.getInstance().getNewImpl(AAIProperties.class);
  81                 };
  82                 List<Callable<AAIProperties>> callableTasks = new ArrayList<>();
  83
  84                 callableTasks.add(callableTask);
  85                 callableTasks.add(callableTask);
  86                 callableTasks.add(callableTask);
  87                 callableTasks.add(callableTask);
  88                 callableTasks.add(callableTask);
  89
  90                 Set<AAIProperties> results = new HashSet<>();
  91                 callableTasks.forEach(callable -> {
  92                         try {
  93                                 TimeUnit.MILLISECONDS.sleep(300);
  94                                 Future<AAIProperties> result = executorService.submit(callable);
  95                                 results.add(result.get());
  96                         } catch (InterruptedException | ExecutionException e) {
  97                                 throw new RuntimeException(e);
  98                         }
  99                 });
 100
 101                 assertThat("expect all unique results", results.size(), equalTo(callableTasks.size()));
 102         }
 103
 104 }