/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.sdt.testsupport;

import com.nokia.sdt.component.IComponent;

import com.nokia.sdt.datamodel.IDesignerDataModel;

import com.nokia.sdt.datamodel.adapter.IComponentInstance;

import com.nokia.cpp.internal.api.utils.core.Check;

import org.eclipse.emf.ecore.EObject;

import org.eclipse.emf.ecore.util.EcoreUtil;

import org.eclipse.ui.views.properties.IPropertySource;

/**

 * These routines are useful for unit tests.

 * Provides common patterns for looking up adapters on components

 * and instances.  (Embrace and extend as needed)

 * 

 * 

 *

 */

public class AdapterHelpers {

    /**

     * Get the component instance from the EObject

     */

    public static IComponentInstance getComponentInstance(EObject object) {

        Check.checkArg(object);

        return (IComponentInstance) EcoreUtil.getRegisteredAdapter(object,

                IComponentInstance.class);

    }

    /**

     * Get the component from the EObject

     */

    public static IComponent getComponent(EObject object) {

        Check.checkArg(object);

        IComponentInstance componentInstance = getComponentInstance(object);

        if (componentInstance != null) {

            return componentInstance.getComponent();

        }

        return null;

    }

    /**

     * Find a component instance with the given name

     */

    public static IComponentInstance findComponentInstance(IDesignerDataModel dm, String name) {

        EObject object = dm.findByNameProperty(name);

        if (object == null)

            return null;

        return getComponentInstance(object);

    }

    /**

     * Get the property source for the component instance

     */

    public static IPropertySource getPropertySource(IComponentInstance instance) {

        Check.checkArg(instance);

        return (IPropertySource) EcoreUtil.getRegisteredAdapter(

                instance.getEObject(),

                IPropertySource.class);

    }

    public static IPropertySource getPropertySource(EObject obj) {

        return (IPropertySource) EcoreUtil.getRegisteredAdapter(

                obj, IPropertySource.class);

    }

}