gov.nih.nci.cadsr.cadsrpasswordchange.core.CommonUtil.java Source code

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Here is the source code for gov.nih.nci.cadsr.cadsrpasswordchange.core.CommonUtil.java

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/*L
 * Copyright SAIC-F Inc.
 *
 * Distributed under the OSI-approved BSD 3-Clause License.
 * See http://ncip.github.com/cadsr-password-change/LICENSE.txt for details.
 */

package gov.nih.nci.cadsr.cadsrpasswordchange.core;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.security.GeneralSecurityException;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.lang3.StringUtils;

public class CommonUtil {

    //   private static OracleObfuscation x;
    //   static {
    //      try {
    //         x = new OracleObfuscation("$_12345&");
    //      } catch (GeneralSecurityException e) {
    //         e.printStackTrace();
    //      }
    //   }

    /**
     * Pad the String up to the specified length passed.
     * 
     * @param text
     * @param length
     * @return
     */
    public static String pad(String text, int length) {
        String retVal = text;

        if (text != null) {
            retVal = String.format("%" + (length - 4) + "s", text).replace(' ', '*'); // final string must be a multiples of 8 bytes
        }

        return retVal;
    }

    public static String encode(String text) throws Exception {
        if (text != null) {
            // text = new String(Hex.encodeHex(x.encrypt(CommonUtil.pad(text,
            // DAO.MAX_ANSWER_LENGTH).getBytes())));
            text = AeSimpleMD5.MD5(text);
        }
        return text;
    }

    public static String decode(String text) {
        // if(text != null) {
        // text = new String(x.decrypt(Hex.decodeHex(text.toCharArray())));
        // }
        return text;
    }

    public static String toString(Throwable theException) {
        // Create a StringWriter and a PrintWriter both of these object
        // will be used to convert the data in the stack trace to a string.
        //
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);

        //
        // Instead of writting the stack trace in the console we write it
        // to the PrintWriter, to get the stack trace message we then call
        // the toString() method of StringWriter.
        //
        theException.printStackTrace(pw);

        return sw.toString();

    }

    public static String truncate(String text, int maxLength) {
        return StringUtils.abbreviate(text, maxLength);
    }

    /*
     * Get the time difference between start and end dates (in days).
     * @reference http://stackoverflow.com/questions/3491679/how-to-calculate-difference-between-two-dates-using-java
     */
    //   public static long daysBetween(Calendar startDate, Calendar endDate) {
    //      Calendar date = (Calendar) startDate.clone();
    //      long daysBetween = 0;
    //      while (date.before(endDate)) {
    //         date.add(Calendar.DAY_OF_MONTH, 1);
    //         daysBetween++;
    //      }
    //      return daysBetween;
    //   }
    public static long calculateDays(Date dateEarly, Date dateLater) {
        return (dateLater.getTime() - dateEarly.getTime()) / (24 * 60 * 60 * 1000);
    }

    public static String getPageHeader(String token) {
        String retVal = Constants.RESET_TITLE;

        if (token != null && token.equals(Constants.SAVE_TOKEN)) {
            retVal = Constants.SETUP_TITLE;
        } else if (token != null && token.equals(Constants.CHANGE_TOKEN)) {
            retVal = Constants.CHANGE_PASSWORD_TITLE;
        } else if (token != null && token.equals(Constants.FORGOT_TOKEN)) {
            retVal = Constants.FORGOT_PASSWORD_TITLE;
        } else if (token != null && token.equals(Constants.UNLOCK_TOKEN)) {
            retVal = Constants.UNLOCK_PASSWORD_TITLE;
        }

        return retVal;
    }

}