Rename functional-samples -> function-samples

function-samples/kstreams-log-user-clicks-per-region/src/main/java/org/springframework/cloud/dataflow/samples/sink/UserClicksPerRegionLogger.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2015-2016 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
+ *
+ *      https://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.cloud.dataflow.samples.sink;
+
+import java.util.function.Consumer;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.integration.dsl.IntegrationFlow;
+import org.springframework.integration.dsl.IntegrationFlows;
+import org.springframework.integration.handler.LoggingHandler;
+import org.springframework.integration.support.MutableMessage;
+import org.springframework.messaging.Message;
+
+@SpringBootApplication
+public class UserClicksPerRegionLogger {
+
+	@Bean
+	IntegrationFlow logConsumerFlow() {
+		return IntegrationFlows.from(MessageConsumer.class, (gateway) -> gateway.beanName("logConsumer"))
+				.handle((payload, headers) -> {
+					Long userClicksPerRegion = (Long) payload;
+					String userRegion = (String) headers.get("kafka_receivedMessageKey");
+					return new MutableMessage<>(userRegion + " : " + userClicksPerRegion.toString());
+				})
+				.log(LoggingHandler.Level.INFO)
+				.get();
+	}
+
+	private interface MessageConsumer extends Consumer<Message<?>> {
+	}
+
+	public static void main(String[] args) {
+		SpringApplication.run(UserClicksPerRegionLogger.class, args);
+	}
+}

function-samples/kstreams-log-user-clicks-per-region/src/main/resources/application.yml

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+spring.cloud.stream.bindings.input:
+  consumer:
+    useNativeEncoding: true
+spring.cloud.stream.kafka.binder.configuration.key:
+  deserializer: org.apache.kafka.common.serialization.StringDeserializer
+spring.cloud.stream.kafka.binder.configuration.value:
+  deserializer: org.apache.kafka.common.serialization.LongDeserializer
+
+spring.cloud.function.definition: logConsumer
+spring.cloud.stream.function.bindings.logConsumer-in-0: input