Azure TimerTrigger Sample

Resolves #272

spring-cloud-function-samples/function-sample-azure-timer-trigger/src/main/azure/host.json

@@ -0,0 +1,4 @@
+{
+	"functionTimeout": "00:05:00",
+	"version": "2.0"
+}

spring-cloud-function-samples/function-sample-azure-timer-trigger/src/main/azure/local.settings.json

@@ -0,0 +1,8 @@
+{
+	"IsEncrypted": false,
+	"Values": {
+		"AzureWebJobsStorage": "UseDevelopmentStorage=true",
+		"AzureWebJobsDashboard": "",
+		"FUNCTIONS_WORKER_RUNTIME": "java"
+	}
+}

spring-cloud-function-samples/function-sample-azure-timer-trigger/src/main/java/example/TimerTriggerDemoApplication.java

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+/*
+ * Copyright 2022 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 example;
+
+import java.util.function.Consumer;
+
+import com.microsoft.azure.functions.ExecutionContext;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.messaging.Message;
+
+@SpringBootApplication
+public class TimerTriggerDemoApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(TimerTriggerDemoApplication.class, args);
+	}
+
+	@Bean
+	public Consumer<Message<String>> uppercase() {
+		return message -> {
+			// /timeInfo is a JSON string, you can deserialize it to an object using your favorite JSON library
+			String timeInfo = message.getPayload();
+
+			// Business logic -> convert the timeInfo to uppercase.
+			String value = timeInfo.toUpperCase();
+			
+			// (Optionally) access and use the Azure function context.
+			ExecutionContext context = (ExecutionContext) message.getHeaders().get("executionContext");
+			context.getLogger().info("Timer is triggered with TimeInfo: " + value);
+
+			// No response.
+		};
+	}
+}

spring-cloud-function-samples/function-sample-azure-timer-trigger/src/main/java/example/UppercaseHandler.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2022 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 example;
+
+import com.microsoft.azure.functions.ExecutionContext;
+import com.microsoft.azure.functions.annotation.FunctionName;
+import com.microsoft.azure.functions.annotation.TimerTrigger;
+
+import org.springframework.cloud.function.adapter.azure.FunctionInvoker;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
+
+public class UppercaseHandler extends FunctionInvoker<Message<String>, Void> {
+
+    @FunctionName("uppercase")
+    public void execute(@TimerTrigger(name = "keepAliveTrigger", schedule = "0 */1 * * * *") String timerInfo,
+            ExecutionContext context) {
+
+        Message<String> message = MessageBuilder.withPayload(timerInfo).build();
+        
+        handleRequest(message, context);
+    }
+}

spring-cloud-function-samples/function-sample-azure-timer-trigger/src/main/resources/application.properties

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+