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Merge pull request vert-x#21 from vert-x3/http-server-sharing-example
Improve the sharing HTTP server example
2 parents 36dcd53 + 584cc70 commit ea519ad

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‎core-examples/README.adoc‎

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link:src/main/java/io/vertx/example/core/http/upload/Server.java[Java upload server example]
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link:src/main/java/io/vertx/example/core/http/upload/Client.java[Java upload client example]
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=== HTTP Server Sharing
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A server that illustrates the round robin orchestrated by vert.x when several verticles are opening HTTP servers on the same port:
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link:src/main/java/io/vertx/example/core/http/sharing/Server.java[Server Launcher]
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link:src/main/java/io/vertx/example/core/http/sharing/HttpServerVerticle.java[HTTP Server Verticle]
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The `Server` deploys two instances of the `HttpServerVerticle` verticle.
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You can run the server then open a browser and point it at link:http://localhost:8080[]. Requests will be handled by an instance after the other.
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The `Client` illustrates the round robin by periodically requesting the server and displays the response content.
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link:src/main/java/io/vertx/example/core/http/sharing/Client.java[Java simple HTTP client]
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You can directly launch the `HTTPServerVerticle` using the `vertx run` command. Then you can set the number of instance you want:
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```
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vertx run io.vertx.example.core.http.sharing.HttpServerVerticle -instances 4
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```
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=== WebSockets echo example
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This example shows a Vert.x HTTP server which handles websockets connections. This example simply echoes back to the client

‎core-examples/src/main/groovy/io/vertx/example/core/http/sharing/client.groovy‎

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vertx.setPeriodic(100, { l ->
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vertx.setPeriodic(1000, { l ->
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vertx.createHttpClient().getNow(8080, "localhost", "/", { resp ->
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resp.bodyHandler({ body ->
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println(body.toString("ISO-8859-1"))
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})
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})
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})
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‎core-examples/src/main/groovy/io/vertx/example/core/http/sharing/httpserververticle.groovy‎

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vertx.createHttpServer().requestHandler({ req ->
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req.response().putHeader("content-type", "text/html").end("<html><body><h1>Hello from ${this}</h1></body></html>")
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}).listen(8080)

‎core-examples/src/main/java/io/vertx/example/core/http/sharing/Client.java‎

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@Override
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public void start() throws Exception {
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vertx.setPeriodic(100, (l) -> {
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vertx.setPeriodic(1000, (l) -> {
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vertx.createHttpClient().getNow(8080, "localhost", "/", resp -> {
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resp.bodyHandler(body -> {
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System.out.println(body.toString("ISO-8859-1"));
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});
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});
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}
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);
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}
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}

‎core-examples/src/main/java/io/vertx/example/core/http/sharing/HttpServerVerticle.java‎

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package io.vertx.example.core.http.sharing;
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import io.vertx.core.AbstractVerticle;
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/**
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* A very simple HTTP server returning it's 'id' in the response.
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*/
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public class HttpServerVerticle extends AbstractVerticle {
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@Override
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public void start() throws Exception {
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vertx.createHttpServer().requestHandler(req -> {
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req.response()
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.putHeader("content-type", "text/html")
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.end("<html><body><h1>Hello from " + this + "</h1></body></html>");
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}).listen(8080);
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}
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}
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‎core-examples/src/main/java/io/vertx/example/core/http/sharing/Server.java‎

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package io.vertx.example.core.http.sharing;
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import io.vertx.core.AbstractVerticle;
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import io.vertx.core.DeploymentOptions;
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import io.vertx.example.util.Runner;
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/**
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* An example illustrating the server sharing and round robin. The servers are identified using an id.
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* The HTTP Server Verticle is instantiated twice in the deployment options.
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*/
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public class Server extends AbstractVerticle {
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// Convenience method so you can run it in your IDE
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public static void main(String[] args) {
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Runner.runExample(Server.class);
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}
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@Override
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public void start() throws Exception {
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getVertx().deployVerticle(new HttpVerticle("server-1"));
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getVertx().deployVerticle(new HttpVerticle("server-2"));
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}
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private class HttpVerticle extends AbstractVerticle {
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private final String id;
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private HttpVerticle(String id) {
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this.id = id;
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}
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@Override
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public void start() throws Exception {
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vertx.createHttpServer().requestHandler(req -> {
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req.response().putHeader("content-type", "text/html").end("<html><body><h1>Hello from " +
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id + "</h1></body></html>");
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}).listen(8080);
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}
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getVertx().deployVerticle(
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"io.vertx.example.core.http.sharing.HttpServerVerticle",
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new DeploymentOptions().setInstances(2));
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}
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}

‎core-examples/src/main/js/io/vertx/example/core/http/sharing/client.js‎

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vertx.setPeriodic(100, function (l) {
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vertx.setPeriodic(1000, function (l) {
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vertx.createHttpClient().getNow(8080, "localhost", "/", function (resp) {
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resp.bodyHandler(function (body) {
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console.log(body.toString("ISO-8859-1"));
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});
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});
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});
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‎core-examples/src/main/js/io/vertx/example/core/http/sharing/httpserververticle.js‎

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vertx.createHttpServer().requestHandler(function (req) {
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req.response().putHeader("content-type", "text/html").end("<html><body><h1>Hello from " + this + "</h1></body></html>");
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}).listen(8080);

‎core-examples/src/main/rb/io/vertx/example/core/http/sharing/client.rb‎

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$vertx.set_periodic(100) { |l|
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$vertx.set_periodic(1000) { |l|
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$vertx.create_http_client().get_now(8080, "localhost", "/") { |resp|
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resp.body_handler() { |body|
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puts body.to_string("ISO-8859-1")
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}
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}
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}
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‎core-examples/src/main/rb/io/vertx/example/core/http/sharing/httpserververticle.rb‎

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$vertx.create_http_server().request_handler() { |req|
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req.response().put_header("content-type", "text/html").end("<html><body><h1>Hello from #{$this}</h1></body></html>")
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}.listen(8080)

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