| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.pulsar.functions.instance; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertNotNull; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.Executors; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.pulsar.functions.api.Function; |
| import org.apache.pulsar.functions.api.Record; |
| import org.testng.annotations.Test; |
| |
| @Slf4j |
| public class JavaInstanceTest { |
| |
| /** |
| * Verify that be able to run lambda functions. |
| * @throws Exception |
| */ |
| @Test |
| public void testLambda() throws Exception { |
| JavaInstance instance = new JavaInstance( |
| mock(ContextImpl.class), |
| (Function<String, String>) (input, context) -> input + "-lambda", |
| new InstanceConfig()); |
| String testString = "ABC123"; |
| CompletableFuture<JavaExecutionResult> result = instance.handleMessage(mock(Record.class), testString); |
| assertNotNull(result.get().getResult()); |
| assertEquals(new String(testString + "-lambda"), result.get().getResult()); |
| instance.close(); |
| } |
| |
| @Test |
| public void testAsyncFunction() throws Exception { |
| InstanceConfig instanceConfig = new InstanceConfig(); |
| |
| Function<String, CompletableFuture<String>> function = (input, context) -> { |
| log.info("input string: {}", input); |
| CompletableFuture<String> result = new CompletableFuture<>(); |
| Executors.newCachedThreadPool().submit(() -> { |
| try { |
| Thread.sleep(500); |
| result.complete(String.format("%s-lambda", input)); |
| } catch (Exception e) { |
| result.completeExceptionally(e); |
| } |
| }); |
| |
| return result; |
| }; |
| |
| JavaInstance instance = new JavaInstance( |
| mock(ContextImpl.class), |
| function, |
| instanceConfig); |
| String testString = "ABC123"; |
| CompletableFuture<JavaExecutionResult> result = instance.handleMessage(mock(Record.class), testString); |
| assertNotNull(result.get().getResult()); |
| assertEquals(new String(testString + "-lambda"), result.get().getResult()); |
| instance.close(); |
| } |
| |
| @Test |
| public void testAsyncFunctionMaxPending() throws Exception { |
| InstanceConfig instanceConfig = new InstanceConfig(); |
| int pendingQueueSize = 2; |
| instanceConfig.setMaxPendingAsyncRequests(pendingQueueSize); |
| |
| Function<String, CompletableFuture<String>> function = (input, context) -> { |
| log.info("input string: {}", input); |
| CompletableFuture<String> result = new CompletableFuture<>(); |
| Executors.newCachedThreadPool().submit(() -> { |
| try { |
| Thread.sleep(500); |
| result.complete(String.format("%s-lambda", input)); |
| } catch (Exception e) { |
| result.completeExceptionally(e); |
| } |
| }); |
| |
| return result; |
| }; |
| |
| JavaInstance instance = new JavaInstance( |
| mock(ContextImpl.class), |
| function, |
| instanceConfig); |
| String testString = "ABC123"; |
| |
| long startTime = System.currentTimeMillis(); |
| assertEquals(pendingQueueSize, instance.getPendingAsyncRequests().remainingCapacity()); |
| CompletableFuture<JavaExecutionResult> result1 = instance.handleMessage(mock(Record.class), testString); |
| assertEquals(pendingQueueSize - 1, instance.getPendingAsyncRequests().remainingCapacity()); |
| CompletableFuture<JavaExecutionResult> result2 = instance.handleMessage(mock(Record.class), testString); |
| assertEquals(pendingQueueSize - 2, instance.getPendingAsyncRequests().remainingCapacity()); |
| CompletableFuture<JavaExecutionResult> result3 = instance.handleMessage(mock(Record.class), testString); |
| // no space left |
| assertEquals(0, instance.getPendingAsyncRequests().remainingCapacity()); |
| |
| instance.getPendingAsyncRequests().remainingCapacity(); |
| assertNotNull(result1.get().getResult()); |
| assertNotNull(result2.get().getResult()); |
| assertNotNull(result3.get().getResult()); |
| |
| assertEquals(new String(testString + "-lambda"), result1.get().getResult()); |
| long endTime = System.currentTimeMillis(); |
| |
| log.info("start:{} end:{} during:{}", startTime, endTime, endTime - startTime); |
| instance.close(); |
| } |
| } |