/*******************************************************************************
 * 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.internal.misc;

import java.util.HashMap;

public class UIStats {
	
	private static int SIZE = 20;
	private static boolean debug[] = new boolean[SIZE];
	private static String startStrings[] = new String[SIZE];
	private static String endStrings[] = new String[SIZE];
	private static HashMap operations = new HashMap(); 
	
	public static int CREATE_PART = 0;
	public static int CREATE_PART_CONTROL = 1;
	public static int INIT_PART = 2;
	
	public static int CREATE_PERSPECTIVE = 3;
	public static int RESTORE_WORKBENCH = 4;
	public static int START_WORKBENCH = 5;
	public static int CREATE_PART_INPUT = 6;
	public static int ACTIVATE_PART = 7;
	public static int BRING_PART_TO_TOP = 8;
	public static int NOTIFY_PART_LISTENERS = 9;
	public static int SWITCH_PERSPECTIVE = 10;
	
	static {
		debug[CREATE_PART] = Policy.DEBUG_PART_CREATE;
		debug[CREATE_PART_INPUT] = Policy.DEBUG_PART_CREATE;
		debug[CREATE_PART_CONTROL] = Policy.DEBUG_PART_CREATE;
		debug[INIT_PART] = Policy.DEBUG_PART_CREATE;
		debug[CREATE_PERSPECTIVE] = Policy.DEBUG_PERSPECTIVE;
		debug[SWITCH_PERSPECTIVE] = Policy.DEBUG_PERSPECTIVE;
		debug[RESTORE_WORKBENCH] = Policy.DEBUG_RESTORE_WORKBENCH;
		debug[START_WORKBENCH] = Policy.DEBUG_START_WORKBENCH;
		debug[ACTIVATE_PART] = Policy.DEBUG_PART_ACTIVATE;
		debug[BRING_PART_TO_TOP] = Policy.DEBUG_PART_ACTIVATE;
		debug[NOTIFY_PART_LISTENERS] = Policy.DEBUG_PART_LISTENERS;
		
		startStrings[CREATE_PART] = "Creating part: "; //$NON-NLS-1$
		endStrings[CREATE_PART] = " ms to create: "; //$NON-NLS-1$
		startStrings[CREATE_PART_INPUT] = "Creating part input: "; //$NON-NLS-1$
		endStrings[CREATE_PART_INPUT] = " ms to create input: "; //$NON-NLS-1$
		startStrings[CREATE_PART_CONTROL] = "Creating control: "; //$NON-NLS-1$
		endStrings[CREATE_PART_CONTROL] = " ms to create control: "; //$NON-NLS-1$
		startStrings[INIT_PART] = "Initializing part: "; //$NON-NLS-1$
		endStrings[INIT_PART] = " ms to init part: "; //$NON-NLS-1$	
		startStrings[CREATE_PERSPECTIVE] = "Creating perspective: "; //$NON-NLS-1$
		endStrings[CREATE_PERSPECTIVE] = " ms to create perspective: "; //$NON-NLS-1$
		startStrings[RESTORE_WORKBENCH] = "Restoring: "; //$NON-NLS-1$
		endStrings[RESTORE_WORKBENCH] = " ms to restore: "; //$NON-NLS-1$
		startStrings[START_WORKBENCH] = "Starting: "; //$NON-NLS-1$
		endStrings[START_WORKBENCH] = " ms to start: "; //$NON-NLS-1$
		
		startStrings[ACTIVATE_PART] = "Activation part: "; //$NON-NLS-1$
		endStrings[ACTIVATE_PART] = " ms to activate: "; //$NON-NLS-1$
		startStrings[BRING_PART_TO_TOP] = "Bringing part to top: "; //$NON-NLS-1$
		endStrings[BRING_PART_TO_TOP] = " ms to bring part to top: "; //$NON-NLS-1$
		startStrings[NOTIFY_PART_LISTENERS] = "Notifying part listeners: "; //$NON-NLS-1$
		endStrings[NOTIFY_PART_LISTENERS] = " ms to notify listeners: "; //$NON-NLS-1$
		startStrings[SWITCH_PERSPECTIVE] = "Swtich perspective: "; //$NON-NLS-1$
		endStrings[SWITCH_PERSPECTIVE] = " ms to switch perspective: "; //$NON-NLS-1$
	}
	
	public static void start(int operation,String label) {
		if(debug[operation]) {
			System.out.println(startStrings[operation] + label);
			operations.put(operation + label,new Long(System.currentTimeMillis()));
		}
	}
	public static void end(int operation,String label) {
		if(debug[operation]) {
			Long startTime = (Long)operations.remove(operation + label);
			System.out.println(
				"Time - " + //$NON-NLS-1$
				(System.currentTimeMillis() - startTime.longValue()) + 
				endStrings[operation] +
				label);
		}
	}
}