package org.xicabin.radcake.core.handlers;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.handlers.HandlerUtil;
import org.xicabin.radcake.core.util.Helper;

/**
 * Open model matches curren file, an IHandler base class.
 * 
 * @author Darcy Young
 * @see org.eclipse.core.commands.IHandler
 * @see org.eclipse.core.commands.AbstractHandler
 */
public class OpenModelFileHandler extends AbstractHandler {
	/**
	 * The constructor.
	 */
	public OpenModelFileHandler() {
	}

	/**
	 * the command has been executed, so extract extract the needed information
	 * from the application context.
	 */
	public Object execute(ExecutionEvent event) throws ExecutionException {
		IWorkbenchPage page = HandlerUtil
				.getActiveWorkbenchWindowChecked(event).getActivePage();
		try {
			Action.openModel(page, Helper.getSelectedFile(page));
		} catch (Throwable e) {
			String clazz = event.toString();
			System.err.println("OpenCakeFile can not process event: " + clazz);
			e.printStackTrace();
		}
		return null;
	}
}