/**

 * Copyright (c) 2010 Symbian Foundation 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:

 * Symbian Foundation - initial contribution.

 * Contributors:

 * Description:

 * Overview:

 * Details:

 * Platforms/Drives/Compatibility:

 * Assumptions/Requirement/Pre-requisites:

 * Failures and causes:

 */

package org.symbian.tools.tmw.internal.ui.deployment;

import java.util.HashMap;

import java.util.Map;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IConfigurationElement;

import org.eclipse.core.runtime.Platform;

import org.symbian.tools.tmw.ui.TMWCoreUI;

import org.symbian.tools.tmw.ui.deployment.IDeploymentTargetType;

import org.symbian.tools.tmw.ui.deployment.ITargetDetailsPane;

public class DeploymentTargetPresentationsManager {

    private Map<IDeploymentTargetType, IConfigurationElement> presentations;

    public ITargetDetailsPane createDetailsPane(IDeploymentTargetType targetType) {

        readRegistry();

        final IConfigurationElement element = presentations.get(targetType);

        if (element != null && element.getAttribute("detailsPane") != null) {

            try {

                return (ITargetDetailsPane) element.createExecutableExtension("detailsPane");

            } catch (CoreException e) {

                TMWCoreUI.log(e);

            }

        }

        return new DefaultDeploymentTypePresentation();

    }

    private synchronized void readRegistry() {

        if (presentations == null) {

            presentations = new HashMap<IDeploymentTargetType, IConfigurationElement>();

            final IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(

                    TMWCoreUI.PLUGIN_ID, "targetPresentation");

            for (IConfigurationElement element : elements) {

                final String runtimeId = element.getAttribute("targetTypeId");

                final IDeploymentTargetType targetType = TMWCoreUI.getDefault().getDeploymentTypesRegistry()

                        .getType(runtimeId);

                if (targetType == null) {

                    TMWCoreUI.log("Runtime %s was not found. It is referenced from plugin %s", runtimeId, element

                            .getContributor().getName());

                    continue;

                } else {

                    presentations.put(targetType, element);

                }

            }

        }

    }

}