pekko/akka-docs-dev/rst/java/code/docs/http/javadsl/HttpServerExampleSpec.java

122 lines
5 KiB
Java
Raw Normal View History

/*
* Copyright (C) 2009-2015 Typesafe Inc. <http://www.typesafe.com>
*/
package docs.http.javadsl;
import akka.actor.ActorSystem;
import akka.http.impl.util.Util;
import akka.http.javadsl.Http;
import akka.http.javadsl.IncomingConnection;
import akka.http.javadsl.ServerBinding;
import akka.http.javadsl.model.*;
import akka.http.javadsl.model.ws.Websocket;
import akka.japi.function.Function;
import akka.japi.function.Procedure;
import akka.stream.ActorMaterializer;
import akka.stream.Materializer;
import akka.stream.javadsl.Flow;
import akka.stream.javadsl.Sink;
import akka.stream.javadsl.Source;
import org.junit.Test;
import scala.Function1;
import scala.concurrent.Await;
import scala.concurrent.Future;
import scala.concurrent.duration.FiniteDuration;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.concurrent.TimeUnit;
public class HttpServerExampleSpec {
public static void bindingExample() {
//#binding-example
ActorSystem system = ActorSystem.create();
Materializer materializer = ActorMaterializer.create(system);
Source<IncomingConnection, Future<ServerBinding>> serverSource =
Http.get(system).bind("localhost", 8080, materializer);
Future<ServerBinding> serverBindingFuture =
serverSource.to(Sink.foreach(
new Procedure<IncomingConnection>() {
@Override
public void apply(IncomingConnection connection) throws Exception {
System.out.println("Accepted new connection from " + connection.remoteAddress());
// ... and then actually handle the connection
}
})).run(materializer);
//#binding-example
}
public static void fullServerExample() throws Exception {
//#full-server-example
ActorSystem system = ActorSystem.create();
//#full-server-example
try {
//#full-server-example
final Materializer materializer = ActorMaterializer.create(system);
Source<IncomingConnection, Future<ServerBinding>> serverSource =
Http.get(system).bind("localhost", 8080, materializer);
//#request-handler
final Function<HttpRequest, HttpResponse> requestHandler =
new Function<HttpRequest, HttpResponse>() {
private final HttpResponse NOT_FOUND =
HttpResponse.create()
.withStatus(404)
.withEntity("Unknown resource!");
@Override
public HttpResponse apply(HttpRequest request) throws Exception {
Uri uri = request.getUri();
if (request.method() == HttpMethods.GET) {
if (uri.path().equals("/"))
return
HttpResponse.create()
.withEntity(MediaTypes.TEXT_HTML.toContentType(),
"<html><body>Hello world!</body></html>");
else if (uri.path().equals("/hello")) {
String name = Util.getOrElse(uri.parameter("name"), "Mister X");
return
HttpResponse.create()
.withEntity("Hello " + name + "!");
}
else if (uri.path().equals("/ping"))
return HttpResponse.create().withEntity("PONG!");
else
return NOT_FOUND;
}
else return NOT_FOUND;
}
};
//#request-handler
Future<ServerBinding> serverBindingFuture =
serverSource.to(Sink.foreach(
new Procedure<IncomingConnection>() {
@Override
public void apply(IncomingConnection connection) throws Exception {
System.out.println("Accepted new connection from " + connection.remoteAddress());
connection.handleWithSyncHandler(requestHandler, materializer);
// this is equivalent to
//connection.handleWith(Flow.of(HttpRequest.class).map(requestHandler), materializer);
}
})).run(materializer);
//#full-server-example
Await.result(serverBindingFuture, new FiniteDuration(1, TimeUnit.SECONDS)); // will throw if binding fails
System.out.println("Press ENTER to stop.");
new BufferedReader(new InputStreamReader(System.in)).readLine();
} finally {
system.shutdown();
}
}
public static void main(String[] args) throws Exception {
fullServerExample();
}
}