| /******************************************************************************* |
| * Copyright (c) 2003, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.server.tomcat.core.internal; |
| |
| import org.eclipse.core.runtime.*; |
| /** |
| * Progress Monitor utility. |
| */ |
| public class ProgressUtil { |
| /** |
| * ProgressUtil constructor comment. |
| */ |
| private ProgressUtil() { |
| super(); |
| } |
| |
| /** |
| * Return a valid progress monitor. |
| * |
| * @param monitor org.eclipse.core.runtime.IProgressMonitor |
| * @return org.eclipse.core.runtime.IProgressMonitor |
| */ |
| public static IProgressMonitor getMonitorFor(IProgressMonitor monitor) { |
| if (monitor == null) |
| return new NullProgressMonitor(); |
| return monitor; |
| } |
| |
| /** |
| * Return a sub-progress monitor with the given amount on the |
| * current progress monitor. |
| * |
| * @param monitor org.eclipse.core.runtime.IProgressMonitor |
| * @param ticks int |
| * @return org.eclipse.core.runtime.IProgressMonitor |
| */ |
| public static IProgressMonitor getSubMonitorFor(IProgressMonitor monitor, int ticks) { |
| if (monitor == null) |
| return new NullProgressMonitor(); |
| if (monitor instanceof NullProgressMonitor) |
| return monitor; |
| return new SubProgressMonitor(monitor, ticks); |
| } |
| |
| /** |
| * Return a sub-progress monitor with the given amount on the |
| * current progress monitor. |
| * |
| * @param monitor org.eclipse.core.runtime.IProgressMonitor |
| * @param ticks a number of ticks |
| * @param style a style |
| * @return org.eclipse.core.runtime.IProgressMonitor |
| */ |
| public static IProgressMonitor getSubMonitorFor(IProgressMonitor monitor, int ticks, int style) { |
| if (monitor == null) |
| return new NullProgressMonitor(); |
| if (monitor instanceof NullProgressMonitor) |
| return monitor; |
| return new SubProgressMonitor(monitor, ticks, style); |
| } |
| } |