Refactoring samples

Restructuring the samples repository
Add more docker support
Add acceptance tests for the apps
Adding sensor average processor sample
Remove aggregate samples

processor-samples/uppercase-transformer/src/main/java/demo/UppercaseTransformer.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2015 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 demo;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.cloud.stream.messaging.Processor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.integration.annotation.InboundChannelAdapter;
+import org.springframework.integration.annotation.Poller;
+import org.springframework.integration.annotation.ServiceActivator;
+import org.springframework.integration.core.MessageSource;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+import org.springframework.messaging.support.GenericMessage;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * @author Dave Syer
+ * @author Soby Chacko
+ */
+@EnableBinding(Processor.class)
+public class UppercaseTransformer {
+
+	private static Logger logger = LoggerFactory.getLogger(UppercaseTransformer.class);
+
+	@ServiceActivator(inputChannel = Processor.INPUT, outputChannel = Processor.OUTPUT)
+	public String transform(String payload) {
+		return payload.toUpperCase();
+	}
+
+	//Following source is used as a test producer.
+	@EnableBinding(Source.class)
+	static class TestSource {
+
+		private AtomicBoolean semaphore = new AtomicBoolean(true);
+
+		@Bean
+		@InboundChannelAdapter(channel = "test-source", poller = @Poller(fixedDelay = "1000"))
+		public MessageSource<String> sendTestData() {
+			return () ->
+					new GenericMessage<>(this.semaphore.getAndSet(!this.semaphore.get()) ? "foo" : "bar");
+
+		}
+	}
+
+	//Following sink is used as a test consumer.
+	@EnableBinding(Sink.class)
+	static class TestSink {
+
+		@StreamListener("test-sink")
+		public void receive(String payload) {
+			System.out.println("Data received: " + payload);
+		}
+	}
+
+	public interface Sink {
+		@Input("test-sink")
+		SubscribableChannel sampleSink();
+	}
+
+	public interface Source {
+		@Output("test-source")
+		MessageChannel sampleSource();
+	}
+}

processor-samples/uppercase-transformer/src/main/java/demo/UppercaseTransformerApplication.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2015 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 demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class UppercaseTransformerApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(UppercaseTransformerApplication.class, args);
+	}
+
+}

processor-samples/uppercase-transformer/src/main/resources/application.yml

@@ -0,0 +1,12 @@
+spring:
+  cloud:
+    stream:
+      bindings:
+        output:
+          destination: xformed
+        test-sink:
+          destination: xformed
+        input:
+          destination: testtock
+        test-source:
+          destination: testtock

processor-samples/uppercase-transformer/src/test/java/demo/ModuleApplicationTests.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2015 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 demo;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest(classes = UppercaseTransformerApplication.class)
+@WebAppConfiguration
+@DirtiesContext
+public class ModuleApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}