bundles/org.eclipse.core.runtime/src/org/eclipse/core/internal/runtime/Policy.java

/*******************************************************************************
 * Copyright (c) 2000, 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.core.internal.runtime;

import java.util.Date;
import org.eclipse.core.runtime.*;

public class Policy {

	public static IProgressMonitor monitorFor(IProgressMonitor monitor) {
		if (monitor == null)
			return new NullProgressMonitor();
		return monitor;
	}

	public static IProgressMonitor subMonitorFor(IProgressMonitor monitor, int ticks) {
		if (monitor == null)
			return new NullProgressMonitor();
		if (monitor instanceof NullProgressMonitor)
			return monitor;
		return new SubProgressMonitor(monitor, ticks);
	}

	public static IProgressMonitor subMonitorFor(IProgressMonitor monitor, int ticks, int style) {
		if (monitor == null)
			return new NullProgressMonitor();
		if (monitor instanceof NullProgressMonitor)
			return monitor;
		return new SubProgressMonitor(monitor, ticks, style);
	}

	/**
	 * Print a debug message to the console. 
	 * Pre-pend the message with the current date and the name of the current thread.
	 */
	public static void debug(String message) {
		StringBuffer buffer = new StringBuffer();
		buffer.append(new Date(System.currentTimeMillis()));
		buffer.append(" - ["); //$NON-NLS-1$
		buffer.append(Thread.currentThread().getName());
		buffer.append("] "); //$NON-NLS-1$
		buffer.append(message);
		System.out.println(buffer.toString());
	}
}