Question: How to access an Extensions plugin? about pf4j

[decebals]

Is https://github.com/decebals/pf4j/blob/master/pf4j/src/main/java/ro/fortsoft/pf4j/DefaultPluginManager.java#L559 what you are looking for?

[defec8edc0de]

I tried to use it like this:

...
pluginManager.startPlugins();
myExtensions = pluginManager.getExtensions(IMyExtensionPoint.class);
for (IMyExtensionPoint currentExtension: myExtensions) {
            Plugin plugin = pluginManager.whichPlugin(currentExtension.getClass()).getPlugin();
            ...
}
...

and it couldn't find the plugin, to the extension (classloaders where not equal..)

If this helps:

• My extensions extend a class: AbstractExtension (extends LogOutputStream implements IMyExtensionPoint, IMyExtensionPoint extends ExtensionPoint)
• in whichPlugin() the classloader of MyExtension.class is the default app launch class loader...

My current workaround for this problem:

• extend DefaultPluginManager and override whichPlugin with:

    @Override
    public PluginWrapper whichPlugin(Class<?> clazz) {
        String extensionClassName = clazz.getName();
        for (PluginWrapper plugin : getStartedPlugins()) {
            String pluginClassName = plugin.getPlugin().getClass().getName();
            if (extensionClassName.contains(pluginClassName)) {
                return plugin;
            }
        }
        System.out.println("Couldn't find Plugin to class: "+ clazz.getName());
        return null;
    }

Obvious drawback...the Extension MUST be declared inside the corresponding plugin class.

[decebals]

I am in vacation. I will come back Monday.

[decebals]

So, your MyExtension is a default extension (it's declared in application not in a plugin)?

[defec8edc0de]

MyExtension extends AbstractExtension extends LogOutputStream implements IMyExtensionPoint extends ExtensionPoint ....over a view inheritances its a default extension.

MyExtension is implemented as inner class of the Plugin.

[decebals]

@s3phir0th Did you solve this issue? I used Plugin.whichPlugin in SpringExtensionFactory and everything seems OK.