/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.tests.util;


import java.io.ByteArrayInputStream;
import java.io.InputStream;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;


/**
 * <code>FileUtil</code> contains methods to create and
 * delete files and projects.
 */
public class FileUtil {


	/**
	 * Creates a new project.
	 * 
	 * @param name the project name
	 */
	public static IProject createProject(String name) 
		throws CoreException
	{
		IWorkspace ws = ResourcesPlugin.getWorkspace();
		IWorkspaceRoot root = ws.getRoot();
		IProject proj = root.getProject(name);
		if (!proj.exists())
			proj.create(null);
		if (!proj.isOpen())
			proj.open(null);
		return proj;
	}


	/**
	 * Deletes a project.
	 * 
	 * @param proj the project
	 */
	public static void deleteProject(IProject proj) 
		throws CoreException
	{
		proj.delete(true, null);
	}
	
	/**
	 * Creates a new file in a project.
	 * 
	 * @param name the new file name
	 * @param proj the existing project
	 * @return the new file
	 */
	public static IFile createFile(String name, IProject proj) 
		throws CoreException
	{
		IFile file = proj.getFile(name);
		if (!file.exists()) {
			String str = " ";
			InputStream in = new ByteArrayInputStream(str.getBytes());
			file.create(in, true, null);
		}
		return file;
	}
	
}