-package org.argeo.eclipse.ui.jetty;
-
-import java.io.IOException;
-import java.lang.management.ManagementFactory;
-import java.nio.file.Files;
-import java.nio.file.Path;
-
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
-
-import org.eclipse.jetty.server.Connector;
-import org.eclipse.jetty.server.Server;
-import org.eclipse.jetty.server.ServerConnector;
-import org.eclipse.jetty.servlet.DefaultServlet;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
-import org.eclipse.jetty.util.resource.Resource;
-import org.eclipse.jetty.util.thread.QueuedThreadPool;
-import org.eclipse.rap.rwt.application.AbstractEntryPoint;
-import org.eclipse.rap.rwt.application.ApplicationRunner;
-import org.eclipse.rap.rwt.engine.RWTServlet;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Label;
-
-/** A minimal RWT runner based on embedded Jetty. */
-public class RwtRunner {
-
- private final Server server;
- private final ServerConnector serverConnector;
- private Path tempDir;
-
- public RwtRunner() {
- server = new Server(new QueuedThreadPool(10, 1));
- serverConnector = new ServerConnector(server);
- serverConnector.setPort(0);
- server.setConnectors(new Connector[] { serverConnector });
- }
-
- protected Control createUi(Composite parent, Object context) {
- return new Label(parent, SWT.NONE);
- }
-
- public void init() {
- ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
- context.setContextPath("/");
- server.setHandler(context);
-
- String entryPoint = "app";
-
- // rwt-resources requires a file system
- try {
- tempDir = Files.createTempDirectory("argeo-rwtRunner");
- context.setBaseResource(Resource.newResource(tempDir.resolve("www").toString()));
- } catch (IOException e) {
- throw new IllegalStateException("Cannot create temporary directory", e);
- }
- context.addEventListener(new ServletContextListener() {
- ApplicationRunner applicationRunner;
-
- @Override
- public void contextInitialized(ServletContextEvent sce) {
- applicationRunner = new ApplicationRunner(
- (application) -> application.addEntryPoint("/" + entryPoint, () -> new AbstractEntryPoint() {
- private static final long serialVersionUID = 5678385921969090733L;
-
- @Override
- protected void createContents(Composite parent) {
- createUi(parent, null);
- }
- }, null), sce.getServletContext());
- applicationRunner.start();
- }
-
- @Override
- public void contextDestroyed(ServletContextEvent sce) {
- applicationRunner.stop();
- }
- });
-
- context.addServlet(new ServletHolder(new RWTServlet()), "/" + entryPoint);
-
- // Required to serve rwt-resources. It is important that this is last.
- ServletHolder holderPwd = new ServletHolder("default", DefaultServlet.class);
- context.addServlet(holderPwd, "/");
-
- try {
- server.start();
- } catch (Exception e) {
- throw new IllegalStateException("Cannot start Jetty server", e);
- }
- }
-
- public void destroy() {
- try {
- serverConnector.close();
- server.stop();
- // TODO delete temp dir
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- public Integer getEffectivePort() {
- return serverConnector.getLocalPort();
- }
-
- public void waitFor() throws InterruptedException {
- server.join();
- }
-
- public static void main(String[] args) throws Exception {
- RwtRunner rwtRunner = new RwtRunner() {
-
- @Override
- protected Control createUi(Composite parent, Object context) {
- Label label = new Label(parent, SWT.NONE);
- label.setText("Hello world!");
- return label;
- }
- };
- rwtRunner.init();
- Runtime.getRuntime().addShutdownHook(new Thread(() -> rwtRunner.destroy(), "Jetty shutdown"));
-
- long jvmUptime = ManagementFactory.getRuntimeMXBean().getUptime();
- System.out.println("App available in " + jvmUptime + " ms, on port " + rwtRunner.getEffectivePort());
-
- // open browser in app mode
- Thread.sleep(2000);// wait for RWT to be ready
- Runtime.getRuntime().exec("google-chrome --app=http://localhost:" + rwtRunner.getEffectivePort() + "/app");
-
- rwtRunner.waitFor();
- }
-}