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Clover's runtime library - required by code instrumented by Clover. Clover is an award-winning code coverage and testing tool for Java and Groovy. It integrates easily with Maven, Ant, Grails, Eclipse and IntelliJ IDEA as well as with continuous integration servers such as Bamboo, Jenkins or Hudson.

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package com.atlassian.clover.util;

import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.text.NumberFormat;
import java.util.Date;
import java.util.Locale;

public class Formatting
{
    private static final String STRING_ABBREV = "...";
    private static final DecimalFormat PC_FORMAT = new DecimalFormat("#,###.#%");
    private static final NumberFormat PC_WIDTH_FORMAT = NumberFormat.getInstance(Locale.US);
    static {
        PC_WIDTH_FORMAT.setMaximumFractionDigits(1);
    }
    private static final DecimalFormat D1_FORMAT = new DecimalFormat("#,###.#");
    private static final DecimalFormat D2_FORMAT = new DecimalFormat("#,###.##");
    private static final DecimalFormat D3_FORMAT = new DecimalFormat("#,###.###");
    private static final DecimalFormat INT_FORMAT = new DecimalFormat("#,###");
    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("EEE MMM d yyyy HH:mm:ss z");
    private static final DateFormat SHORT_DATE_FORMAT = new SimpleDateFormat("d MMM HH:mm:ss");

    private Formatting()
    {
        // no instances of me
    }

    public synchronized static String getPercentStr(float aPc) {
        return aPc < 0 ? " - " : PC_FORMAT.format(aPc);
    }

    public synchronized static String getPcWidth(float aPc) {
        return PC_WIDTH_FORMAT.format(aPc) + "%";
    }

    public synchronized static String format1d(float val) {
        return D1_FORMAT.format(val);
    }

    public synchronized static String format2d(double val) {
        if (val < 0) {
            return "-";
        }
        return D2_FORMAT.format(val);
    }

    public synchronized static String format3d(double val) {
        if (val < 0) {
            return "-";
        }
        return D3_FORMAT.format(val);
    }

    public synchronized static String formatInt(int aVal)
    {
        return INT_FORMAT.format(aVal);
    }

    public synchronized static String formatDate(Date aDate)
    {
        return DATE_FORMAT.format(aDate);
    }

    public synchronized static String formatShortDate(Date aDate)
    {
        return SHORT_DATE_FORMAT.format(aDate);
    }

    public static String restrictLength(String str, int maxlength, boolean prefix) {
        if (str == null) {
            return "";
        }
        int abbrevlength = STRING_ABBREV.length();
        int strlength = str.length();
        // no limit, or string is within limit, or string can't be abbreviated
        if (maxlength < 0 || strlength <= maxlength || strlength <= abbrevlength) {
            return str;
        }

        if (prefix) {
            return STRING_ABBREV + str.substring((strlength - maxlength) + abbrevlength);
        }
        else {
            return str.substring(0, maxlength - abbrevlength) + STRING_ABBREV;
        }


    }

    public static String pluralizedVal(int value, String word) {
        return value + " " + pluralizedWord(value, word);
    }

    public static String pluralizedWord(int value, String word) {
        return word + (value != 1 ? (word.endsWith("s") ? "es" : "s") : "");
    }

    public static NumberFormat getPcFormat() {
        DecimalFormat format = new DecimalFormat("###%");
        format.setMultiplier(1);
        return format;
    }

}