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Merged
artursouza merged 1 commit into from
Jan 7, 2020
Merged

Starting package to use SpringBoot as web API for dapr. #69

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45 changes: 30 additions & 15 deletions examples/pom.xml
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Expand Up @@ -7,38 +7,29 @@
<parent>
<groupId>io.dapr</groupId>
<artifactId>dapr-sdk-parent</artifactId>
<version>0.2.0-preview01</version>
<version>0.2.0</version>
</parent>

<groupId>io.dapr</groupId>
<artifactId>dapr-sdk-examples</artifactId>
<packaging>jar</packaging>
<version>0.2.0-preview01</version>
<version>0.2.0</version>
<name>dapr-sdk-examples</name>

<properties>
<protobuf.output.directory>${project.build.directory}/generated-sources</protobuf.output.directory>
<protobuf.input.directory>${project.parent.basedir}/proto</protobuf.input.directory>
<protobuf.input.directory>${project.basedir}/proto</protobuf.input.directory>
<java.version>11</java.version>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
</properties>

<dependencies>
<dependency>
<groupId>io.undertow</groupId>
<artifactId>undertow-servlet</artifactId>
<version>2.0.26.Final</version>
</dependency>
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
Expand All @@ -47,18 +38,27 @@
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-api</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-testing</artifactId>
<version>${grpc.version}</version>
<scope>test</scope>
</dependency>
<dependency>
Expand All @@ -71,10 +71,25 @@
<artifactId>protoc-jar-maven-plugin</artifactId>
<version>3.10.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>io.dapr</groupId>
<artifactId>dapr-sdk-springboot</artifactId>
<version>0.2.0</version>
</dependency>
<dependency>
<groupId>io.dapr</groupId>
<artifactId>dapr-sdk</artifactId>
<version>0.2.0-preview01</version>
<version>0.2.0</version>
</dependency>
</dependencies>

Expand All @@ -96,7 +111,7 @@
<includeMavenTypes>direct</includeMavenTypes>
<includeStdTypes>true</includeStdTypes>
<inputDirectories>
<include>${protobuf.input.directory}/examples</include>
<include>${protobuf.input.directory}</include>
</inputDirectories>
<outputTargets>
<outputTarget>
Expand Down
0 proto/examples/helloworld.proto → examples/proto/helloworld.proto
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210 changes: 14 additions & 196 deletions examples/src/main/java/io/dapr/examples/actors/http/DemoActorService.java
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Expand Up @@ -5,29 +5,14 @@

package io.dapr.examples.actors.http;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.dapr.actors.runtime.ActorRuntime;
import io.undertow.Undertow;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.RoutingHandler;
import io.undertow.util.Headers;
import io.dapr.springboot.DaprApplication;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.Options;
import org.apache.commons.io.IOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.Writer;
import java.nio.charset.StandardCharsets;
import java.util.Deque;
import java.util.Map;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
* Service for Actor runtime.
Expand All @@ -36,193 +21,26 @@
* 2. Run the server:
* dapr run --app-id demoactorservice --app-port 3000 --port 3005 -- mvn exec:java -pl=examples -Dexec.mainClass=io.dapr.examples.actors.http.DemoActorService -Dexec.args="-p 3000"
*/
@SpringBootApplication
public class DemoActorService {

private static final JsonFactory JSON_FACTORY = new JsonFactory();

private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();

private static final HttpHandler ROUTES = new RoutingHandler()
.get("/", DemoActorService::handleDaprConfig)
.get("/dapr/config", DemoActorService::handleDaprConfig)
.post("/actors/{actorType}/{id}", DemoActorService::handleActorActivate)
.delete("/actors/{actorType}/{id}", DemoActorService::handleActorDeactivate)
.put("/actors/{actorType}/{id}/method/{methodName}", DemoActorService::handleActorInvoke)
.put("/actors/{actorType}/{id}/method/timer/{timerName}", DemoActorService::handleActorTimer)
.put("/actors/{actorType}/{id}/method/remind/{reminderName}", DemoActorService::handleActorReminder);

private final int port;

private final Undertow server;

private DemoActorService(int port) {
this.port = port;
this.server = Undertow
.builder()
.addHttpListener(port, "localhost")
.setHandler(ROUTES)
.build();
ActorRuntime.getInstance().registerActor(DemoActorImpl.class);
}

private void start() {
// Now we handle ctrl+c (or any other JVM shutdown)
Runtime.getRuntime().addShutdownHook(new Thread() {

@Override
public void run() {
System.out.println("Server: shutting down gracefully ...");
DemoActorService.this.server.stop();
System.out.println("Server: Bye.");
}
});

System.out.println(String.format("Server: listening on port %d ...", this.port));
this.server.start();
}

private static void handleDaprConfig(HttpServerExchange exchange) throws IOException {
exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "application/json");
String result = "";
try (Writer writer = new StringWriter()) {
JsonGenerator generator = JSON_FACTORY.createGenerator(writer);
generator.writeStartObject();
generator.writeArrayFieldStart("entities");
for(String actorClass : ActorRuntime.getInstance().getRegisteredActorTypes()) {
generator.writeString(actorClass);
}
generator.writeEndArray();
generator.writeStringField("actorIdleTimeout", "10s");
generator.writeStringField("actorScanInterval", "1s");
generator.writeStringField("drainOngoingCallTimeout", "1s");
generator.writeBooleanField("drainBalancedActors", true);
generator.writeEndObject();
generator.close();
writer.flush();
result = writer.toString();
}

exchange.getResponseSender().send(result);
}

private static void handleActorActivate(HttpServerExchange exchange) {
if (exchange.isInIoThread()) {
exchange.dispatch(DemoActorService::handleActorActivate);
return;
}

String actorType = findParamValueOrNull(exchange, "actorType");
String actorId = findParamValueOrNull(exchange, "id");
ActorRuntime.getInstance().activate(actorType, actorId).block();
exchange.getResponseSender().send("");
}

private static void handleActorDeactivate(HttpServerExchange exchange) {
if (exchange.isInIoThread()) {
exchange.dispatch(DemoActorService::handleActorDeactivate);
return;
}

String actorType = findParamValueOrNull(exchange, "actorType");
String actorId = findParamValueOrNull(exchange, "id");
ActorRuntime.getInstance().deactivate(actorType, actorId).block();
}

private static void handleActorInvoke(HttpServerExchange exchange) throws IOException {
if (exchange.isInIoThread()) {
exchange.dispatch(DemoActorService::handleActorInvoke);
return;
}

String actorType = findParamValueOrNull(exchange, "actorType");
String actorId = findParamValueOrNull(exchange, "id");
String methodName = findParamValueOrNull(exchange, "methodName");
exchange.startBlocking();
String data = findMethodData(exchange.getInputStream());
String result = ActorRuntime.getInstance().invoke(actorType, actorId, methodName, data).block();
exchange.getResponseSender().send(buildResponse(result));
}

private static void handleActorTimer(HttpServerExchange exchange) throws IOException {
if (exchange.isInIoThread()) {
exchange.dispatch(DemoActorService::handleActorTimer);
return;
}

String actorType = findParamValueOrNull(exchange, "actorType");
String actorId = findParamValueOrNull(exchange, "id");
String timerName = findParamValueOrNull(exchange, "timerName");
ActorRuntime.getInstance().invokeTimer(actorType, actorId, timerName).block();
exchange.getResponseSender().send("");
}

private static void handleActorReminder(HttpServerExchange exchange) throws IOException {
if (exchange.isInIoThread()) {
exchange.dispatch(DemoActorService::handleActorReminder);
return;
}

String actorType = findParamValueOrNull(exchange, "actorType");
String actorId = findParamValueOrNull(exchange, "id");
String reminderName = findParamValueOrNull(exchange, "reminderName");
exchange.startBlocking();
String params = IOUtils.toString(exchange.getInputStream(), StandardCharsets.UTF_8);
ActorRuntime.getInstance().invokeReminder(actorType, actorId, reminderName, params).block();
exchange.getResponseSender().send("");
}

private static String findParamValueOrNull(HttpServerExchange exchange, String name) {
Map<String, Deque<String>> params = exchange.getQueryParameters();
if (params == null) {
return null;
}

Deque<String> values = params.get(name);
if ((values == null) || (values.isEmpty())) {
return null;
}

return values.getFirst();
}

private static String findMethodData(InputStream stream) throws IOException {
JsonNode root = OBJECT_MAPPER.readTree(stream);
if (root == null) {
return null;
}

JsonNode dataNode = root.get("data");
if (dataNode == null) {
return null;
}

return new String(dataNode.binaryValue(), StandardCharsets.UTF_8);
}

private static String buildResponse(String data) throws IOException {
try (Writer writer = new StringWriter()) {
JsonGenerator generator = JSON_FACTORY.createGenerator(writer);
generator.writeStartObject();
if (data != null) {
generator.writeBinaryField("data", data.getBytes());
}
generator.writeEndObject();
generator.close();
writer.flush();
return writer.toString();
}
}

public static void main(String[] args) throws Exception {
Options options = new Options();
options.addRequiredOption("p", "port", true, "Port to listen to.");
options.addRequiredOption("p", "port", true, "Port Dapr will listen to.");

CommandLineParser parser = new DefaultParser();
CommandLine cmd = parser.parse(options, args);

// If port string is not valid, it will throw an exception.
int port = Integer.parseInt(cmd.getOptionValue("port"));
final DemoActorService service = new DemoActorService(port);
service.start();

// Register the Actor class.
ActorRuntime.getInstance().registerActor(DemoActorImpl.class);

// Start Dapr's callback endpoint.
DaprApplication.start(port);

// Start application's endpoint.
SpringApplication.run(DemoActorService.class);
}
}
19 changes: 19 additions & 0 deletions examples/src/main/java/io/dapr/examples/actors/http/HelloController.java
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@@ -0,0 +1,19 @@
/*
* Copyright (c) Microsoft Corporation.
* Licensed under the MIT License.
*/

package io.dapr.examples.actors.http;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

@RequestMapping("/")
public String index() {
return "Greetings from your Spring Boot Application!";
}

}
8 changes: 7 additions & 1 deletion pom.xml
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Expand Up @@ -7,7 +7,7 @@
<groupId>io.dapr</groupId>
<artifactId>dapr-sdk-parent</artifactId>
<packaging>pom</packaging>
<version>0.2.0-preview01</version>
<version>0.2.0</version>
<name>dapr-sdk-parent</name>
<description>SDK for Dapr.</description>
<url>https://dapr.io</url>
Expand All @@ -33,6 +33,11 @@
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-api</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
Expand Down Expand Up @@ -79,6 +84,7 @@
<modules>
<module>sdk-autogen</module>
<module>sdk</module>
<module>sdk-springboot</module>
<module>examples</module>
</modules>

Expand Down
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