1 files changed, 104 insertions, 0 deletions
diff --git a/bpmn/MSOCommonBPMN/src/test/java/org/onap/so/client/restproperties/ThreadedReadTest.java b/bpmn/MSOCommonBPMN/src/test/java/org/onap/so/client/restproperties/ThreadedReadTest.java
new file mode 100644
index 0000000000..8231c2f529
--- /dev/null
+++ b/bpmn/MSOCommonBPMN/src/test/java/org/onap/so/client/restproperties/ThreadedReadTest.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2017 - 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.client.restproperties;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.junit.Assert.assertThat;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.Test;
+import org.onap.so.BaseTest;
+import org.onap.so.client.RestPropertiesLoader;
+import org.onap.so.client.aai.AAIProperties;
+
+public class ThreadedReadTest {
+	@Test
+	public void allAtOnce() throws InterruptedException {
+		ExecutorService executorService = Executors.newFixedThreadPool(10);
+		
+		Callable<AAIProperties> callableTask = () -> {
+			return RestPropertiesLoader.getInstance().getNewImpl(AAIProperties.class);
+		};
+		List<Callable<AAIProperties>> callableTasks = new ArrayList<>();
+		
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		
+		List<Future<AAIProperties>> futures = executorService.invokeAll(callableTasks);
+		
+		Set<AAIProperties> results = new HashSet<>();
+		futures.forEach(item -> {
+			try {
+				results.add(item.get());
+			} catch (InterruptedException | ExecutionException e) {
+				throw new RuntimeException(e);
+			}
+		});
+		
+		assertThat("expect all unique results", results.size(), equalTo(callableTasks.size()));
+		
+	}
+	
+	@Test
+	public void executeOverTime() {
+		ScheduledExecutorService executorService = Executors.newScheduledThreadPool(10);
+		
+		Callable<AAIProperties> callableTask = () -> {
+			TimeUnit.MILLISECONDS.sleep(500);
+			return RestPropertiesLoader.getInstance().getNewImpl(AAIProperties.class);
+		};
+		List<Callable<AAIProperties>> callableTasks = new ArrayList<>();
+		
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		callableTasks.add(callableTask);
+		
+		Set<AAIProperties> results = new HashSet<>();
+		callableTasks.forEach(callable -> {
+			try {
+				TimeUnit.MILLISECONDS.sleep(300);
+				Future<AAIProperties> result = executorService.submit(callable);
+				results.add(result.get());
+			} catch (InterruptedException | ExecutionException e) {
+				throw new RuntimeException(e);
+			}
+		});
+		
+		assertThat("expect all unique results", results.size(), equalTo(callableTasks.size()));
+	}
+	
+}