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	/*
	* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.tools.jconsole;

	import java.text.*;
	import java.util.*;


	class Formatter {
	final static long SECOND = 1000;
	final static long MINUTE = 60 * SECOND;
	final static long HOUR = 60 * MINUTE;
	final static long DAY = 24 * HOUR;

	final static String cr = System.getProperty("line.separator");

	final static DateFormat timeDF = new SimpleDateFormat("HH:mm");
	private final static DateFormat timeWithSecondsDF = new SimpleDateFormat("HH:mm:ss");
	private final static DateFormat dateDF = new SimpleDateFormat("yyyy-MM-dd");
	private final static String decimalZero =
	new DecimalFormatSymbols().getDecimalSeparator() + "0";

	static String formatTime(long t) {
	String str;
	if (t < 1 * MINUTE) {
	String seconds = String.format("%.3f", t / (double)SECOND);
	str = Resources.format(Messages.DURATION_SECONDS, seconds);
	} else {
	long remaining = t;
	long days = remaining / DAY;
	remaining %= 1 * DAY;
	long hours = remaining / HOUR;
	remaining %= 1 * HOUR;
	long minutes = remaining / MINUTE;

	if (t >= 1 * DAY) {
	str = Resources.format(Messages.DURATION_DAYS_HOURS_MINUTES,
	days, hours, minutes);
	} else if (t >= 1 * HOUR) {
	str = Resources.format(Messages.DURATION_HOURS_MINUTES,
	hours, minutes);
	} else {
	str = Resources.format(Messages.DURATION_MINUTES, minutes);
	}
	}
	return str;
	}

	static String formatNanoTime(long t) {
	long ms = t / 1000000;
	return formatTime(ms);
	}


	static String formatClockTime(long time) {
	return timeDF.format(time);
	}

	static String formatDate(long time) {
	return dateDF.format(time);
	}

	static String formatDateTime(long time) {
	return dateDF.format(time) + " " + timeWithSecondsDF.format(time);
	}

	static DateFormat getDateTimeFormat(String dtfStr) {
	int dateStyle = -1;
	int timeStyle = -1;

	if (dtfStr.startsWith("SHORT")) {
	dateStyle = DateFormat.SHORT;
	} else if (dtfStr.startsWith("MEDIUM")) {
	dateStyle = DateFormat.MEDIUM;
	} else if (dtfStr.startsWith("LONG")) {
	dateStyle = DateFormat.LONG;
	} else if (dtfStr.startsWith("FULL")) {
	dateStyle = DateFormat.FULL;
	}

	if (dtfStr.endsWith("SHORT")) {
	timeStyle = DateFormat.SHORT;
	} else if (dtfStr.endsWith("MEDIUM")) {
	timeStyle = DateFormat.MEDIUM;
	} else if (dtfStr.endsWith("LONG")) {
	timeStyle = DateFormat.LONG;
	} else if (dtfStr.endsWith("FULL")) {
	timeStyle = DateFormat.FULL;
	}

	if (dateStyle != -1 && timeStyle != -1) {
	return DateFormat.getDateTimeInstance(dateStyle, timeStyle);
	} else if (dtfStr.length() > 0) {
	return new SimpleDateFormat(dtfStr);
	} else {
	return DateFormat.getDateTimeInstance();
	}
	}

	static double toExcelTime(long time) {
	// Excel is bug compatible with Lotus 1-2-3 and pretends
	// that 1900 was a leap year, so count from 1899-12-30.
	// Note that the month index is zero-based in Calendar.
	Calendar cal = new GregorianCalendar(1899, 11, 30);

	// Adjust for the fact that now may be DST but then wasn't
	Calendar tmpCal = new GregorianCalendar();
	tmpCal.setTimeInMillis(time);
	int dst = tmpCal.get(Calendar.DST_OFFSET);
	if (dst > 0) {
	cal.set(Calendar.DST_OFFSET, dst);
	}

	long millisSince1900 = time - cal.getTimeInMillis();
	double value = (double)millisSince1900 / (24 * 60 * 60 * 1000);

	return value;
	}



	static String[] formatKByteStrings(long... bytes) {
	int n = bytes.length;
	for (int i = 0; i < n; i++) {
	if (bytes[i] > 0) {
	bytes[i] /= 1024;
	}
	}
	String[] strings = formatLongs(bytes);
	for (int i = 0; i < n; i++) {
	strings[i] = Resources.format(Messages.KBYTES, strings[i]);
	}
	return strings;
	}

	static String formatKBytes(long bytes) {
	if (bytes == -1) {
	return Resources.format(Messages.KBYTES, "-1");
	}

	long kb = bytes / 1024;
	return Resources.format(Messages.KBYTES, justify(kb, 10));
	}


	static String formatBytes(long v, boolean html) {
	return formatBytes(v, v, html);
	}

	static String formatBytes(long v, long vMax) {
	return formatBytes(v, vMax, false);
	}

	static String formatBytes(long v, long vMax, boolean html) {
	String s;

	int exp = (int)Math.log10((double)vMax);

	if (exp < 3) {
	s = Resources.format(Messages.SIZE_BYTES, v);
	} else if (exp < 6) {
	s = Resources.format(Messages.SIZE_KB, trimDouble(v / Math.pow(10.0, 3)));
	} else if (exp < 9) {
	s = Resources.format(Messages.SIZE_MB, trimDouble(v / Math.pow(10.0, 6)));
	} else {
	s = Resources.format(Messages.SIZE_GB, trimDouble(v / Math.pow(10.0, 9)));
	}
	if (html) {
	s = s.replace(" ", " ");
	}
	return s;
	}

	/*
	* Return the input value rounded to one decimal place. If after
	* rounding the string ends in the (locale-specific) decimal point
	* followed by a zero then trim that off as well.
	*/
	private static String trimDouble(double d) {
	String s = String.format("%.1f", d);
	if (s.length() > 3 && s.endsWith(decimalZero)) {
	s = s.substring(0, s.length()-2);
	}
	return s;
	}

	static String formatLong(long value) {
	return String.format("%,d", value);
	}

	static String[] formatLongs(long... longs) {
	int n = longs.length;
	int size = 0;
	String[] strings = new String[n];
	for (int i = 0; i < n; i++) {
	strings[i] = formatLong(longs[i]);
	size = Math.max(size, strings[i].length());
	}
	for (int i = 0; i < n; i++) {
	strings[i] = justify(strings[i], size);
	}
	return strings;
	}


	// A poor attempt at right-justifying for numerical data
	static String justify(long value, int size) {
	return justify(formatLong(value), size);
	}

	static String justify(String str, int size) {
	StringBuffer buf = new StringBuffer();
	buf.append("<TT>");
	int n = size - str.length();
	for (int i = 0; i < n; i++) {
	buf.append(" ");
	}
	buf.append(str);
	buf.append("</TT>");
	return buf.toString();
	}

	static String newRow(String label, String value) {
	return newRow(label, value, 2);
	}

	static String newRow(String label, String value, int columnPerRow) {
	if (label == null) {
	label = "";
	} else {
	label += ": ";
	}
	label = "<th nowrap align=right valign=top>" + label;
	value = "<td colspan=" + (columnPerRow-1) + "> <font size =-1>" + value;

	return "<tr>" + label + value + "</tr>";
	}

	static String newRow(String label1, String value1,
	String label2, String value2) {
	label1 = "<th nowrap align=right valign=top>" + label1 + ": ";
	value1 = "<td><font size =-1>" + value1;
	label2 = "<th nowrap align=right valign=top>" + label2 + ": ";
	value2 = "<td><font size =-1>" + value2;

	return "<tr>" + label1 + value1 + label2 + value2 + "</tr>";
	}

	}

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