INT-1477 restructuring samples repo to have basic, intermediate, advancedand applications directories

intermediate/async-gateway/src/test/java/org/springframework/integration/samples/async/gateway/AsyncGatewayTest.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2002-2010 the original author or authors.
+ *
+ * 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.
+ */
+package org.springframework.integration.samples.async.gateway;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Random;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import org.apache.log4j.Logger;
+import org.junit.Test;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.FileSystemXmlApplicationContext;
+/**
+ * @author Oleg Zhurakousky
+ *
+ */
+public class AsyncGatewayTest {
+	private static Logger logger = Logger.getLogger(AsyncGatewayTest.class);
+	private static ExecutorService executor = Executors.newFixedThreadPool(100);
+	private static int timeout = 20;
+	
+	@Test
+	public void testAsyncGateway() throws Exception{
+		ApplicationContext ac = new FileSystemXmlApplicationContext("src/main/resources/META-INF/spring/integration/*.xml");
+		MathServiceGateway mathService = ac.getBean("mathService", MathServiceGateway.class);
+		Map<Integer, Future<Integer>> results = new HashMap<Integer, Future<Integer>>();
+		Random random = new Random();
+		for (int i = 0; i < 100; i++) {
+			int number = random.nextInt(200);
+			Future<Integer> result = mathService.multiplyByTwo(number);
+			results.put(number, result);
+		}
+		for (final Map.Entry<Integer, Future<Integer>> resultEntry : results.entrySet()) {
+			executor.execute(new Runnable() {
+				public void run() {			
+					int[] result = processFuture(resultEntry);
+					
+					if (result[1] == -1){
+						logger.info("Multiplying " + result[0] + " should be easy. You should be able to multiply any number < 100 by 2 in your head");
+					} else if (result[1] == -2){
+						logger.info("Multiplication of " + result[0] + " by 2 is can not be accomplished in " + timeout + " seconds");
+					} else {
+						logger.info("Result of multiplication of " + result[0] + " by 2 is " + result[1]);
+					}
+				}
+			});		
+		}
+		executor.shutdown();
+		executor.awaitTermination(60, TimeUnit.SECONDS);
+		logger.info("Finished");
+	}
+	
+	public static int[] processFuture(Map.Entry<Integer, Future<Integer>> resultEntry){
+		int originalNumber = resultEntry.getKey();
+		Future<Integer> result = resultEntry.getValue();
+		try {
+			int finalResult =  result.get(timeout, TimeUnit.SECONDS);
+			return new int[]{originalNumber, finalResult};
+		} catch (ExecutionException e) {
+			return new int[]{originalNumber, -1};
+		} catch (TimeoutException tex){
+			return new int[]{originalNumber, -2};
+		} catch (Exception ex){
+			System.out.println();
+			// ignore
+		}
+		return null;
+	}
+}

intermediate/async-gateway/src/test/resources/log4j.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
+
+	<!-- Appenders -->
+	<appender name="console" class="org.apache.log4j.ConsoleAppender">
+		<param name="Target" value="System.out" />
+		<layout class="org.apache.log4j.PatternLayout">
+			<param name="ConversionPattern" value="%-5p: %c - %m%n" />
+		</layout>
+	</appender>
+	<logger name="org.springframework.integration">
+		<level value="warn" />
+	</logger>
+	
+	<logger name="org.springframework.integration.samples.async.gateway">
+		<level value="debug" />
+	</logger>
+
+	<!-- Root Logger -->
+	<root>
+		<priority value="warn" />
+		<appender-ref ref="console" />
+	</root>
+
+</log4j:configuration>