Adds autoconfiguration for springboot apps. (#459)

* Adding Dapr Spring Boot Starter.

* Move Dapr Spring Boot Starter into existing sdk-springboot project.

Co-authored-by: Darren Wang <darren_wang@outlook.com>

examples/pom.xml

@@ -173,7 +173,7 @@
               <goal>repackage</goal>
             </goals>
             <configuration>
-              <mainClass>io.dapr.springboot.DaprMainApplication</mainClass>
+              <mainClass>io.dapr.examples.DaprMainApplication</mainClass>
               <classifier>exec</classifier>
               <finalName>dapr-java-sdk-examples</finalName>
             </configuration>

examples/src/main/java/io/dapr/examples/DaprApplication.java

@@ -3,16 +3,15 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 /**
  * Dapr's HTTP callback implementation via SpringBoot.
- * Scanning package io.dapr.springboot is required.
  */
-@SpringBootApplication(scanBasePackages = {"io.dapr.springboot", "io.dapr.examples"})
+@SpringBootApplication
 public class DaprApplication {
 
   /**

examples/src/main/java/io/dapr/examples/DaprConfig.java

@@ -3,7 +3,7 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import io.dapr.client.DaprClient;
 import io.dapr.client.DaprClientBuilder;

examples/src/main/java/io/dapr/examples/DaprMainApplication.java

@@ -3,7 +3,7 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import java.lang.reflect.Method;
 import java.util.Arrays;

examples/src/main/java/io/dapr/examples/OpenTelemetryConfig.java

@@ -3,7 +3,7 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import io.dapr.examples.invoke.http.InvokeClient;
 import io.opentelemetry.api.OpenTelemetry;

examples/src/main/java/io/dapr/examples/OpenTelemetryInterceptor.java

@@ -3,7 +3,7 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import io.opentelemetry.api.OpenTelemetry;
 import io.opentelemetry.context.Context;

examples/src/main/java/io/dapr/examples/OpenTelemetryInterceptorConfig.java

@@ -3,7 +3,7 @@
  * Licensed under the MIT License.
  */
 
-package io.dapr.springboot;
+package io.dapr.examples;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;

examples/src/main/java/io/dapr/examples/actors/DemoActorService.java

@@ -6,7 +6,7 @@
 package io.dapr.examples.actors;
 
 import io.dapr.actors.runtime.ActorRuntime;
-import io.dapr.springboot.DaprApplication;
+import io.dapr.examples.DaprApplication;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;

examples/src/main/java/io/dapr/examples/bindings/http/InputBindingExample.java

@@ -5,7 +5,7 @@
 
 package io.dapr.examples.bindings.http;
 
-import io.dapr.springboot.DaprApplication;
+import io.dapr.examples.DaprApplication;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;

examples/src/main/java/io/dapr/examples/bindings/http/README.md

@@ -170,4 +170,4 @@ For bringing down the kafka cluster that was started in the beginning, run
 docker-compose -f ./src/main/java/io/dapr/examples/bindings/http/docker-compose-single-kafka.yml down
 ```
 
-For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../../springboot/DaprApplication.java)  Application implementation.
+For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../DaprApplication.java)  Application implementation.

examples/src/main/java/io/dapr/examples/invoke/grpc/HelloWorldService.java

@@ -8,7 +8,6 @@ package io.dapr.examples.invoke.grpc;
 import com.google.protobuf.Any;
 import io.dapr.v1.AppCallbackGrpc;
 import io.dapr.v1.CommonProtos;
-import io.dapr.v1.DaprAppCallbackProtos;
 import io.grpc.Server;
 import io.grpc.ServerBuilder;
 import io.grpc.stub.StreamObserver;

examples/src/main/java/io/dapr/examples/invoke/http/DemoService.java

@@ -5,7 +5,7 @@
 
 package io.dapr.examples.invoke.http;
 
-import io.dapr.springboot.DaprApplication;
+import io.dapr.examples.DaprApplication;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;

examples/src/main/java/io/dapr/examples/invoke/http/README.md

@@ -139,4 +139,4 @@ Once running, the output should display the messages sent from invoker in the de
 
 Method have been remotely invoked and displaying the remote messages.
 
-For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../../springboot/DaprApplication.java) Application implementation.
+For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../DaprApplication.java) Application implementation.

examples/src/main/java/io/dapr/examples/pubsub/http/Publisher.java

@@ -9,9 +9,6 @@ import io.dapr.client.DaprClient;
 import io.dapr.client.DaprClientBuilder;
 import io.dapr.client.domain.Metadata;
 
-import java.io.IOException;
-import java.util.Collections;
-
 import static java.util.Collections.singletonMap;
 
 /**

examples/src/main/java/io/dapr/examples/pubsub/http/README.md

@@ -243,4 +243,4 @@ No message is consumed by the subscriber app and warnings messages are emitted f
 
 ```
 
-For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../../springboot/DaprApplication.java) Application implementation.
+For more details on Dapr Spring Boot integration, please refer to [Dapr Spring Boot](../../DaprApplication.java) Application implementation.

examples/src/main/java/io/dapr/examples/pubsub/http/Subscriber.java

@@ -5,7 +5,7 @@
 
 package io.dapr.examples.pubsub.http;
 
-import io.dapr.springboot.DaprApplication;
+import io.dapr.examples.DaprApplication;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;

examples/src/main/java/io/dapr/examples/secrets/SecretClient.java

@@ -9,7 +9,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import io.dapr.client.DaprClient;
 import io.dapr.client.DaprClientBuilder;
 
-import java.io.IOException;
 import java.util.Map;
 
 /**

examples/src/main/java/io/dapr/examples/tracing/InvokeClient.java

@@ -10,7 +10,7 @@ import io.dapr.client.DaprClientBuilder;
 import io.dapr.client.domain.HttpExtension;
 import io.dapr.client.domain.InvokeMethodRequest;
 import io.dapr.client.domain.InvokeMethodRequestBuilder;
-import io.dapr.springboot.OpenTelemetryConfig;
+import io.dapr.examples.OpenTelemetryConfig;
 import io.dapr.utils.TypeRef;
 import io.opentelemetry.api.trace.Span;
 import io.opentelemetry.api.trace.Tracer;

examples/src/main/java/io/dapr/examples/tracing/README.md

@@ -160,7 +160,7 @@ public class TracingDemoMiddleServiceController {
 }
 ```
 
-The request attribute `opentelemetry-context` in created by parsing the tracing headers in the [OpenTelemetryInterceptor](../../springboot/OpenTelemetryInterceptor.java) class. See the code below:
+The request attribute `opentelemetry-context` in created by parsing the tracing headers in the [OpenTelemetryInterceptor](../OpenTelemetryInterceptor.java) class. See the code below:
 
 ```java
 @Component

examples/src/main/java/io/dapr/examples/tracing/TracingDemoMiddleServiceController.java

@@ -9,6 +9,7 @@ import io.dapr.client.DaprClient;
 import io.dapr.client.domain.HttpExtension;
 import io.dapr.client.domain.InvokeMethodRequest;
 import io.dapr.client.domain.InvokeMethodRequestBuilder;
+import io.dapr.examples.OpenTelemetryInterceptor;
 import io.dapr.utils.TypeRef;
 import io.opentelemetry.context.Context;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -21,7 +22,7 @@ import reactor.core.publisher.Mono;
 /**
  * SpringBoot Controller to handle service invocation.
  *
- * <p>Instrumentation is handled in {@link io.dapr.springboot.OpenTelemetryInterceptor}.
+ * <p>Instrumentation is handled in {@link OpenTelemetryInterceptor}.
  */
 @RestController
 public class TracingDemoMiddleServiceController {

examples/src/main/java/io/dapr/examples/tracing/TracingDemoService.java

@@ -5,7 +5,8 @@
 
 package io.dapr.examples.tracing;
 
-import io.dapr.springboot.DaprApplication;
+import io.dapr.examples.DaprApplication;
+import io.dapr.examples.OpenTelemetryInterceptor;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;
@@ -14,7 +15,7 @@ import org.apache.commons.cli.Options;
 /**
  * Main method to invoke DemoService to test tracing.
  *
- * <p>Instrumentation is handled in {@link io.dapr.springboot.OpenTelemetryInterceptor}.
+ * <p>Instrumentation is handled in {@link OpenTelemetryInterceptor}.
  *
  * <p>1. Build and install jars:
  * mvn clean install

examples/src/main/java/io/dapr/examples/tracing/TracingDemoServiceController.java

@@ -6,6 +6,7 @@
 package io.dapr.examples.tracing;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import io.dapr.examples.OpenTelemetryInterceptor;
 import io.opentelemetry.api.trace.Tracer;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -14,7 +15,6 @@ import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RestController;
 import reactor.core.publisher.Mono;
 
-import java.nio.charset.StandardCharsets;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
@@ -24,7 +24,7 @@ import java.util.TimeZone;
 /**
  * SpringBoot Controller to handle service invocation.
  *
- * <p>Instrumentation is handled in {@link io.dapr.springboot.OpenTelemetryInterceptor}.
+ * <p>Instrumentation is handled in {@link OpenTelemetryInterceptor}.
  */
 @RestController
 public class TracingDemoServiceController {

sdk-springboot/pom.xml

@@ -29,8 +29,21 @@
 
   <properties>
     <maven.deploy.skip>false</maven.deploy.skip>
+    <springboot.version>2.3.5.RELEASE</springboot.version>
   </properties>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-dependencies</artifactId>
+        <version>${springboot.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
   <dependencies>
     <dependency>
       <groupId>io.dapr</groupId>
@@ -88,6 +101,17 @@
           <version>5.2.10.RELEASE</version>
           <scope>compile</scope>
       </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-autoconfigure</artifactId>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-configuration-processor</artifactId>
+      <scope>compile</scope>
+      <optional>true</optional>
+    </dependency>
   </dependencies>
 
   <build>

sdk-springboot/src/main/java/io/dapr/springboot/DaprAutoConfiguration.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ */
+
+package io.dapr.springboot;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Dapr's Spring Boot AutoConfiguration.
+ */
+@Configuration
+@ConditionalOnWebApplication
+@ComponentScan("io.dapr.springboot")
+public class DaprAutoConfiguration {
+}

sdk-springboot/src/main/java/io/dapr/springboot/DaprBeanPostProcessor.java

@@ -7,11 +7,8 @@ package io.dapr.springboot;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.JsonMappingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.dapr.Topic;
-import io.dapr.client.ObjectSerializer;
-import io.dapr.serializer.DefaultObjectSerializer;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.config.BeanPostProcessor;
 import org.springframework.stereotype.Component;

sdk-springboot/src/main/java/io/dapr/springboot/DaprController.java

@@ -12,7 +12,6 @@ import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;

sdk-springboot/src/main/resources/META-INF/spring.factories

@@ -0,0 +1,2 @@
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+io.dapr.springboot.DaprAutoConfiguration

sdk-tests/src/test/java/io/dapr/it/actors/app/TestApplication.java

@@ -11,7 +11,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 /**
  * Dapr's HTTP callback implementation via SpringBoot.
  */
-@SpringBootApplication(scanBasePackages = {"io.dapr.springboot", "io.dapr.it.actors.app"})
+@SpringBootApplication
 public class TestApplication {
 
   /**

sdk-tests/src/test/java/io/dapr/it/actors/services/springboot/DaprApplication.java

@@ -11,7 +11,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 /**
  * Dapr's HTTP callback implementation via SpringBoot.
  */
-@SpringBootApplication(scanBasePackages = {"io.dapr.springboot", "io.dapr.it.actors.services.springboot"})
+@SpringBootApplication
 public class DaprApplication {
 
   /**

sdk-tests/src/test/java/io/dapr/it/pubsub/http/SubscriberService.java

@@ -12,7 +12,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 /**
  * Service for subscriber.
  */
-@SpringBootApplication(scanBasePackages = {"io.dapr.springboot", "io.dapr.it.pubsub.http"})
+@SpringBootApplication
 public class SubscriberService {
 
   public static final String SUCCESS_MESSAGE = "Completed initialization in";