Re: [concierge-dev] Concierge embedded in JavaFX application

[Tim Verbelen <tim.verbelen@xxxxxxxxxxxxxx>]

Hi,

Indeed, apparently Equinox allows you to set a parent classloader, in this case set to "ext", which means the system classloader will load any of the packages in .jars in the ext folder of the JVM. This will probably contain the javafx packages.

In Concierge we don't have such a property, as this is something Equinox specific (I think) and is not described in the OSGi core spec. The org.osgi.framework.bootdelegation property on the other hand is part of the OSGi core spec, and actually achieves the same result.

Cheers,

Tim

On 12/03/2014 12:34 PM, Ladislav Török wrote:

Thanks all.

Problem resolved!

But I have other question.

Equinox not set none javafx.* packages at starting framework. And also in bundles for sample 'DukePad' below not set none javafx.* packages in header Import-Package in MANFEST:FILE.

Is it possible for Concierge?

I think that related with line initialProperties.put("osgi.parentClassloader","ext"); What is it?
Thanks again to all.

2014-12-03 11:10 GMT+01:00 Jochen Hiller <jo.hiller@xxxxxxxxxxxxxx>:

Hi,

there are two OSGi properties which are required to understand:

"org.osgi.framework.system.packages.extra" adds Java packages to "Export-Packages" to System bundle (=Concierge)

Add here packages if a bundle can not be resolved. If your bundle makes an "Import-Package: javafx.scene" you have to add this to system packages extra as Tim mentioned.

In your stacktrace I do not see that bundle can not be resolved, so seems to be OK.

"org.osgi.framework.bootdelegation": adds java packages which will be loaded from System ClassLoader instead of a bundle classloader.

Concierge does only load java.* classes from System ClassLoader, which is exactly according to OSGi spec.

If you will use other classes from rt.jar (javax.*, sun.*) or in your case (javafx.*) you have to add them to this property.

So: set of org.osgi.framework.bootdelegation=javafx.* may help.

Bye, Jochen

On Wed, Dec 3, 2014 at 10:59 AM, Tim Verbelen <tim.verbelen@xxxxxxxxxxxxxx> wrote:

Hi,

You will also have to include all used Java FX packages to Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA if you want to access them from within OSGi bundles. So in this case you should at least add "javafx.scene".

Best regards,

Tim

On 12/03/2014 10:56 AM, Ladislav Török wrote:

Now I get exception:

---------------------------------------------------------
  Concierge OSGi 5.0.0.alpha on Windows 7 6.1 starting ... (default) startlevel=3
---------------------------------------------------------
---------------------------------------------------------
  Framework started in 0.003 seconds.
---------------------------------------------------------
Loading XBundle
Hello from my firstbundle...
org.osgi.framework.BundleException: Error starting bundle [sk.ltorok.xbundle-1.0.0]
    at org.eclipse.concierge.BundleImpl.activate0(BundleImpl.java:521)
    at org.eclipse.concierge.BundleImpl.activate(BundleImpl.java:473)
    at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:427)
    at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:367)
    at com.javafx.experiments.dukepad.starter.StarterApplication.lambda$startOSGi$27(StarterApplication.java:167)
    at com.javafx.experiments.dukepad.starter.StarterApplication$$Lambda$99/1094701973.run(Unknown Source)
    at com.javafx.experiments.dukepad.starter.StarterApplication$2.run(StarterApplication.java:193)
    at com.sun.javafx.application.PlatformImpl.lambda$null$169(PlatformImpl.java:295)    at com.sun.javafx.application.PlatformImpl.lambda$null$169(PlatformImpl.java:295)
    at com.sun.javafx.application.PlatformImpl$$Lambda$48/540370836.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$170(PlatformImpl.java:294)
    at com.sun.javafx.application.PlatformImpl$$Lambda$47/1232367853.run(Unknown Source)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$144(WinApplication.java:101)
    at com.sun.glass.ui.win.WinApplication$$Lambda$36/1161082381.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: javafx/scene/Scene
    at sk.ltorok.xbundle.Activator.start(Activator.java:20)
    at org.eclipse.concierge.BundleImpl.activate0(BundleImpl.java:496)
    ... 16 more
Caused by: java.lang.ClassNotFoundException: javafx.scene.Scene
    at org.eclipse.concierge.BundleImpl$Revision$BundleClassLoader.findClass(BundleImpl.java:2431)
    at org.eclipse.concierge.BundleImpl$Revision$BundleClassLoader.loadClass(BundleImpl.java:2410)
    ... 18 more
BUILD STOPPED (total time: 36 seconds

What I could still try?

Thanks.

2014-12-03 8:39 GMT+01:00 Jan S Rellermeyer <rellermeyer@xxxxxxxxxx>:

From looking at your code I could imagine that our use of Constants.FRAMEWORK_SYSTEMPACKAGES is causing the problem. I would recommend to better use Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA instead because otherwise you are overwriting the defaults and that could cause the resolver to fail because nothing exports org.osgi.framework anymore. The "EXTRA" version keeps the defaults and allows you to add additional packages to it which is what you really want.

--Jan.  

Ladislav Török ---12/03/2014 01:16:33 AM---I'm trying to replace Equinox to Concierge in project Dukepad - see: https://wiki.openjdk.java.net/d

From: Ladislav Török <ltorokrl@xxxxxxxxx>
To: Concierge developer discussions <concierge-dev@xxxxxxxxxxx>
Date: 12/03/2014 01:16 AM
Subject: Re: [concierge-dev] Concierge embedded in JavaFX application
Sent by: concierge-dev-bounces@xxxxxxxxxxx

---

I'm trying to replace Equinox to Concierge in project Dukepad - see: https://wiki.openjdk.java.net/display/OpenJFX/DukePad


I am using class ' StarterApplication' as my main JavaFX application:

package com.javafx.experiments.dukepad.starter;

import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.DepthTest;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import org.eclipse.core.runtime.adaptor.EclipseStarter;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;

import java.io.File;
import java.net.MalformedURLException;
import java.util.*;
import org.eclipse.concierge.Factory;
import org.osgi.framework.Constants;
import org.osgi.framework.launch.Framework;

/**
 * Starter for DukePad platform
 */
public class StarterApplication extends Application {
    private Framework framework;
   
    private Stage primaryStage;
    private Scene scene;
    private final LinkedList<Runnable> loadingTasks = new LinkedList<>();
    private final List<Bundle> bundles = new ArrayList<>();

    public void start(Stage primaryStage) {
        // create main window and show splash screen
        this.primaryStage = primaryStage;
        ImageView bootScreen = new ImageView(new Image(StarterApplication.class.getResource("/Duke-Startup.jpg").toExternalForm(),false));
        Text loadingText = new Text("Loading...");
        loadingText.setFont(Font.font("System",24));
        loadingText.setFill(Color.rgb(255, 255, 255, 0.8));
        loadingText.setX(30);
        loadingText.setY(50);
        scene = new Scene(new Group(bootScreen,loadingText), 1300, 800);
//        scene.setFill(Color.BLACK);
//        scene.setFill(Color.TRANSPARENT);
        scene.setFill(Color.RED);
//        primaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.initStyle(StageStyle.TRANSPARENT);
        primaryStage.setScene(scene);
        primaryStage.show();

        // boot OSGi in own thread
        Platform.runLater(() -> startOSGi(loadingText));
    }

    private void startOSGi(final Text loadingText) {
        try {
            // CONFIGURE OSGI
            //String[] equinoxArgs = {"-clean",/*"-consoleLog",*/"-console","-dev","bin"};
            Map<String,String> initialProperties = new HashMap<>();
//            initialProperties.put("osgi.console.enable.builtin", "true");
//            initialProperties.put("osgi.parentClassloader","ext");
//            initialProperties.put("org.osgi.framework.system.packages","sun.misc,java,javax,javax.net.ssl,javax.security.cert,javax.naming,javax.naming.directory,javax.security.auth,javax.security.auth.x500");
//            EclipseStarter.setInitialProperties(initialProperties);
           
            initialProperties.put(Constants.FRAMEWORK_BUNDLE_PARENT, Constants.FRAMEWORK_BUNDLE_PARENT_BOOT);
            initialProperties.put(Constants.FRAMEWORK_SYSTEMPACKAGES, "sun.misc,java,javax,javax.net.ssl,javax.security.cert,javax.naming,javax.naming.directory,javax.security.auth,javax.security.auth.x500");
           
            // START OSGI
            //final BundleContext context = EclipseStarter.startup(equinoxArgs, null);
            Factory factory = new Factory();
            framework = factory.newFramework(initialProperties);
            framework.init();
            framework.start();
           
            final BundleContext context = framework.getBundleContext();
            // REGISTER SCENE AND STAGE AS SERVICES
            context.registerService(Scene.class,scene, null);
            context.registerService(Stage.class,primaryStage, null);

            // Create tasks to install all jar bundles in bundles directory
            File bundleDir = new File("bundles");
            if (bundleDir.exists()) {
                File[] bundleJars = bundleDir.listFiles();
                if (bundleJars != null) {
                    // load app modules
                    for (final File file: bundleJars) {
                        if (file.getName().endsWith(".jar")) {
                            loadingTasks.add(() -> {
                                final String name = file.getName().substring(0,file.getName().lastIndexOf('.'));
                                loadingText.setText("Loading " + name);
                                System.out.println("Loading " + name);
                                try {
                                    bundles.add(context.installBundle(file.toURI().toURL().toExternalForm()));
                                } catch (Exception e) {
                                    e.printStackTrace();
                                }
                            });
                        }
                    }
                }
            }
            // Create task to start all bundles
            loadingTasks.add(() -> {
                for (Bundle b: bundles) {
                    loadingTasks.push(() -> {
                        loadingText.setText("Starting " + b.getSymbolicName());
                        System.out.println("Starting " + b.getSymbolicName());
                        try {
                            b.start();
                        } catch (BundleException e) {
                            e.printStackTrace();
                        }
                    });
                }
            });
            // Create task to install and start all bundles in apps directory
            File appDir = new File("D:\\applications");
            if (appDir.exists()) {
                File[] appJars = appDir.listFiles();
                if (appJars != null) {
                    // sort alphabetical
                    Arrays.sort(appJars,new Comparator<File>() {
                        @Override public int compare(File o1, File o2) {
                        return o1.getName().compareTo(o2.getName());
                        }
                    });
                    // load app modules
                    for (File file: appJars) {
                        if (file.getName().endsWith(".jar")) {
                            loadingTasks.add(() -> {
                                final String name = file.getName().substring(0,file.getName().lastIndexOf('.'));
                                loadingText.setText("Loading " + name);
                                System.out.println("Loading " + name);
                                try {
                                    Bundle bundle = context.installBundle(file.toURI().toURL().toExternalForm());
                                    bundle.start();
                                } catch (Exception e) {
                                    e.printStackTrace();
                                }
                            });
                        }
                    }
                }
            }
        } catch(Exception e) {
            e.printStackTrace();
        }

        // start executing all the tasks we have queued up
        runNextStartupTask();
    }

    /**
     * Execute each task from list in order in separate platform.runLater(). This allows FX to draw the screen
     * between tasks.
     */
    private void runNextStartupTask() {
        if (loadingTasks.isEmpty()) return;
        final Runnable task = loadingTasks.pop();
        Platform.runLater(new Runnable() {
            @Override public void run() {
                task.run();
                runNextStartupTask();
            }
        });
    }

    @Override public void stop() throws Exception {
        System.out.println("StarterApplication.stop");
        //EclipseStarter.shutdown();
        framework.stop();
    }

    public static void main(String[] args) {
//        System.setProperty("org.osgi.framework.system.packages.extra","javafx.application");
        launch(args);
    }
}

and class 'Activator' as bundle:

package sk.ltorok.xbundle;

import javafx.scene.Scene;
import javafx.scene.paint.Color;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class Activator implements BundleActivator {

    @Override
    public void start(BundleContext context) throws Exception {
        System.out.println("Hello from my firstbundle...");

        // Get Scene Service
        Scene scene = context.getService(context.getServiceReference(Scene.class));
//        System.out.println(scene.toString());
//        System.out.println(scene.getFill().toString());
//        scene.setFill(Color.YELLOW);
    }

    @Override
    public void stop(BundleContext context) throws Exception {
        System.out.println("Bye from my firstbundle...");
    }

}

MANIFEST.MF file for bundle above is:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.9.2
Created-By: 1.8.0_40-ea-b15 (Oracle Corporation)
Bundle-Version: 1.0.0
Bundle-Name: sk.ltorok.xbundle
Bundle-Activator: sk.ltorok.xbundle.Activator
Bundle-ManifestVersion: 2
Bundle-SymbolicName: sk.ltorok.xbundle
Import-Package: org.osgi.framework
Require-Bundle: sk.ltorok.xbundle

after run 'StarterApplication' I get Exception:

---------------------------------------------------------
  Concierge OSGi 5.0.0.alpha on Windows 7 6.1 starting ... (default) startlevel=3
---------------------------------------------------------
---------------------------------------------------------
  Framework started in 0.003 seconds.
---------------------------------------------------------
Loading XBundle
org.osgi.framework.BundleException: Resolution failed [BundleRequirement{Import-Package org.osgi.framework}]
    at org.eclipse.concierge.Concierge.resolve(Concierge.java:2435)
    at org.eclipse.concierge.BundleImpl$Revision.resolve(BundleImpl.java:1816)
    at org.eclipse.concierge.BundleImpl.activate(BundleImpl.java:453)
    at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:427)
    at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:367)
    at com.javafx.experiments.dukepad.starter.StarterApplication.lambda$startOSGi$27(StarterApplication.java:167)
    at com.javafx.experiments.dukepad.starter.StarterApplication$$Lambda$101/1330056022.run(Unknown Source)
    at com.javafx.experiments.dukepad.starter.StarterApplication$2.run(StarterApplication.java:193)
    at com.sun.javafx.application.PlatformImpl.lambda$null$169(PlatformImpl.java:295)    at com.sun.javafx.application.PlatformImpl.lambda$null$169(PlatformImpl.java:295)
    at com.sun.javafx.application.PlatformImpl$$Lambda$48/540370836.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$170(PlatformImpl.java:294)
    at com.sun.javafx.application.PlatformImpl$$Lambda$47/1232367853.run(Unknown Source)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$144(WinApplication.java:101)
    at com.sun.glass.ui.win.WinApplication$$Lambda$36/1161082381.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:745)
BUILD STOPPED (total time: 1 minute 54 seconds)

When I replace line initialProperties.put(Constants.FRAMEWORK_BUNDLE_PARENT, Constants.FRAMEWORK_BUNDLE_PARENT_BOOT); to initialProperties.put(Constants.FRAMEWORK_BUNDLE_PARENT, Constants.FRAMEWORK_BUNDLE_PARENT_EXT);
result is the same.

Thanks for any help.

2014-12-02 21:03 GMT+01:00 Jan S Rellermeyer <rellermeyer@xxxxxxxxxx>:

Hi Ladislav,

Concierge in JavaFX is an interesting problem and I have not tried that myself, nor am I aware of anybody else who did.
Would you be able to share some basic code/test case that leads to the failure that you describe? That would help us to look into the problem.

--Jan.

Ladislav Török ---12/02/2014 02:02:12 PM---I have a problem. I am embedding (hosting) Concierge in JavaFX application.

From: Ladislav Török <ltorokrl@xxxxxxxxx>
To: concierge-dev@xxxxxxxxxxx
Date: 12/02/2014 02:02 PM
Subject: [concierge-dev] Concierge embedded in JavaFX application
Sent by: concierge-dev-bounces@xxxxxxxxxxx


---




I have a problem.
I am embedding (hosting) Concierge in JavaFX application.
I have created bundle. Bundle after install and start change background color in main javafx application, but after start bundle  I get exception.
Is possible embedded-hosted Concierge in JavaFX application? Please any simple example. Thanks._______________________________________________
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-- 
Tim Verbelen
Department of Information Technology
Broadband Communication Networks (IBCN)
Ghent University - iMinds
Gaston Crommenlaan 8 (Bus 201), B-9050 Gent, Belgium
T: +32 9 33 14940 ; T Secr: +32 9 33 14900
F: +32 9 33 14899
E: tim.verbelen@xxxxxxxxxxxxxx
W : www.ibcn.intec.UGent.be

_______________________________________________
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-- 
Tim Verbelen
Department of Information Technology
Broadband Communication Networks (IBCN)
Ghent University - iMinds
Gaston Crommenlaan 8 (Bus 201), B-9050 Gent, Belgium
T: +32 9 33 14940 ; T Secr: +32 9 33 14900
F: +32 9 33 14899
E: tim.verbelen@xxxxxxxxxxxxxx
W : www.ibcn.intec.UGent.be