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Jadex bridge is a base package for kernels and platforms, i.e., it is used by both and provides commonly used interfaces and classes for active components and their management.

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package jadex.bridge.nonfunctional;

import jadex.bridge.IExternalAccess;
import jadex.bridge.IInternalAccess;
import jadex.commons.future.DefaultResultListener;
import jadex.commons.future.DelegationResultListener;
import jadex.commons.future.Future;
import jadex.commons.future.IFuture;
import jadex.commons.future.IResultListener;

/**
 *  Injects properties on root component.
 */
public abstract class NFRootProperty extends SimpleValueNFProperty
{
	/** The root access. */
	protected IExternalAccess root;
	
	/** The flag if the property has been injected to the root component. */
	protected boolean injected;
	
	/**
	 *  Create a new property.
	 */
	public NFRootProperty(final IInternalAccess comp, final NFPropertyMetaInfo mi)
	{
		this(comp, mi, true);
	}
	
	/**
	 *  Create a new property.
	 */
	public NFRootProperty(final IInternalAccess comp, final NFPropertyMetaInfo mi, boolean inject)
	{
		super(comp, mi);
		if(inject)
			injectPropertyToRootComponent();
	}
	
	/**
	 *  Inject the property to the root component.
	 */
	protected IFuture injectPropertyToRootComponent()
	{
		final Future ret = new Future();

		if(!injected)
		{
			this.injected = true;
			
			// Add property to root component
//			IComponentManagementService cms = comp.getFeature(IRequiredServicesFeature.class).getLocalService(new ServiceQuery<>(IComponentManagementService.class));
			comp.getExternalAccessAsync(comp.getId().getRoot()).addResultListener(new DefaultResultListener()
			{
				public void resultAvailable(IExternalAccess root)
				{
					NFRootProperty.this.root = root;
					INFPropertyMetaInfo mi = getMetaInfo();
					NFPropertyMetaInfo cmi = new NFPropertyMetaInfo(mi.getName(), mi.getType(), mi.getUnit(), mi.isDynamic(), mi.getUpdateRate(), mi.isRealtime(), Target.Root);
//					((INFPropertyProvider)root.getExternalComponentFeature(INFPropertyComponentFeature.class)).addNFProperty(new NFPropertyRef((INFPropertyProvider)comp.getExternalAccess().getExternalComponentFeature(INFPropertyComponentFeature.class), root, cmi)).addResultListener(new DelegationResultListener(ret));
					
					NFPropertyRef pr = new NFPropertyRef(comp.getExternalAccess(), cmi, null, null);
					root.addNFProperty(pr).addResultListener(new DelegationResultListener(ret));
				}
			});
		}
		else
		{
			ret.setResult(null);
		}
		
		return ret;
	}
	
	/**
	 *  Property was removed and should be disposed.
	 */
	public IFuture dispose()
	{
		final Future ret = new Future();
		
		if(root!=null && injected)
		{
//			((INFPropertyProvider)root.getExternalComponentFeature(INFPropertyComponentFeature.class)).removeNFProperty(getName());//.addResultListener(new DelegationResultListener(ret));
			root.removeNFProperty(getName()).addResultListener(new IResultListener()
			{
				public void resultAvailable(Void result)
				{
					NFRootProperty.super.dispose().addResultListener(new DelegationResultListener(ret));
				}
				
				public void exceptionOccurred(Exception exception)
				{
					NFRootProperty.super.dispose().addResultListener(new DelegationResultListener(ret));
				}
			});
		}
		else
		{
			return super.dispose();
		}
		
		return ret;
	}

	/**
	 *  Get the injected.
	 *  @return The injected.
	 */
	public boolean isInjected()
	{
		return injected;
	}
}