HDUtil.java

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package cedar.hepdata.util;

import java.text.DecimalFormat;
import java.util.Date;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.apache.commons.lang.time.DateUtils;
import java.text.ParseException;

public class HDUtil {


    public static String diff(Date end, Date start) {
        return getTime(end.getTime() - start.getTime());
    }

    private static String getTime(long time) {
        long mins = Math.round(Math.floor(time / 60000));
        double secs = (time - (mins * 60000)) / 1000.0;
        DecimalFormat decFormat = new DecimalFormat("##0.###");
        String rtn = mins + " minutes and " + decFormat.format(secs) + " seconds";

        return rtn;
    }

    public static Date dateFromString(String timestamp) throws HDException {
        try {
            String[] formats = {
                "yyyy-MM-dd HH:mm:ss",
                "yyyy.MM.dd HH:mm:ss",
                "yyyy/MM/dd HH:mm:ss",
                "dd/MM/yyyy HH:mm:ss",
                "dd MMM yyyy HH:mm:ss",
                "yyyy-MM-dd",
                "yyyy.MM.dd",
                "yyyy/MM/dd",
                "dd/MM/yyyy",
                "dd MMM yyyy"
            };
            return DateUtils.parseDate(timestamp, formats);
        } catch (ParseException e) {
            throw new HDException(e);
        }
    }

    public static String getIntForm(Double dbl) {
        String dblString = dbl.toString();

        //  System.out.println("Input String:"+dblString);
        String mString = "";
        int exp = 0;

        if (dblString.indexOf("E") > -1) {
            //9.0E-4
            //1.378E05
            exp = Integer.parseInt(dblString.substring(dblString.indexOf("E") + 1));
            dblString = dblString.substring(0, dblString.indexOf("E"));
        }

        int len = dblString.length();

        if (dblString.indexOf(".") > -1) {
            String s = dblString;

            while (s.endsWith("0")) {
                s = s.substring(0, s.length() - 1);
            }

            exp = -s.length() + s.indexOf(".") + 1 + exp;
            mString = s.substring(0, s.indexOf(".")) + s.substring(s.indexOf(".") + 1);

            //System.out.println("Is decimal, mString,exp "+mString+","+exp);
        } else {
            String s = dblString;
            int c = 0;

            while (s.endsWith("0") && !s.equals("")) {
                c++;
                s = s.substring(0, s.length() - 1);
            }

            mString = s;
            exp = c + exp;

            //System.out.println("Is not decimal, mString,exp "+mString+","+exp);
        }

        //System.out.println("Return String "+mString+"E"+exp);
        return mString + "E" + exp;
    }


    public static String stripBrackets(String in) {
        if (in == null) {
            return null;
        }

        char[] charArray = (in.trim()).toCharArray();
        StringBuffer out = new StringBuffer();

        for (int i = 0; i < charArray.length; i++) {
            char test = charArray[i];

            if ((test != '(') && (test != ')') && (test != '*') && (test != '\"') &&
                    (test != '\'')) {
                out.append(test);
            }
        }

        return out.toString();

    }


    public static void toFile(String mystr, String filedir, String filename) {
        try {
            File f = new File(filedir, filename);
            FileWriter fw = new FileWriter(f);
            fw.write(mystr);
            fw.close();
        } catch (IOException e) {
            System.err.println(e);
        }
    }

}

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