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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 *  This file is part of Gjokii./*from w w  w . j  a v a 2 s .  c o  m*/
 *
 *  Gjokii is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Gjokii 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with Gjokii.  If not, see <http://www.gnu.org/licenses/>.
 */
package net.tuxed.gjokii;

import java.util.GregorianCalendar;

import net.tuxed.misc.Utils;

/**
 * This class can be used to extract information about file and directories on
 * the phone file system.
 * 
 * @author F. Kooman <fkooman@tuxed.net>
 * 
 */
public class DirectoryEntryInfo {
  private String entryName;
  private final byte entryType;
  private int entrySize;
  private short entryYear;
  private short entryMonth;
  private short entryDay;
  private short entryHour;
  private short entryMinute;
  private short entrySecond;

  /**
   * The directory entry data to request information about.
   * 
   * @param entryData the entry data to analyze
   */
  public DirectoryEntryInfo(final byte[] entryData) throws GjokiiException {
    entryType = entryData[14];
    if (isFile() || isDirectory()) {
      entrySize = Utils.byteArrayToInt(entryData, 16);
      entryYear = Utils.byteArrayToShort(entryData, 20);
      entryMonth = entryData[22];
      entryDay = entryData[23];
      entryHour = entryData[24];
      entryMinute = entryData[25];
      entrySecond = entryData[26];
      final short entryNameLength = Utils.byteArrayToShort(entryData, 36);
      entryName = Utils.bytesToString(entryData, 38, entryNameLength * 2 - 2);
    }
  }

  /**
   * Get the human readable date of the entry.
   * 
   * @return the date
   */
  public String getEntryDate() {
    return Utils.shortToTwoDigitString(entryYear) + "-" + Utils.shortToTwoDigitString(entryMonth) + "-"
        + Utils.shortToTwoDigitString(entryDay);
  }

  /**
   * Get the human readable entry name of the entry.
   */
  public String getEntryName() {
    return entryName;
  }

  /**
   * Get the size of the entry.
   * 
   * @return the file size
   */
  public int getEntrySize() {
    return entrySize;
  }

  /**
   * Get the time of the entry.
   * 
   * @return the time
   */
  public String getEntryTime() {
    return Utils.shortToTwoDigitString(entryHour) + ":" + Utils.shortToTwoDigitString(entryMinute) + ":"
        + Utils.shortToTwoDigitString(entrySecond);
  }

  /**
   * Get the UNIX time stamp of the entry (number of seconds since January 1st
   * 1970).
   * 
   * @return the UNIX time stamp
   */
  public long getEntryTimeStamp() {
    final GregorianCalendar c = new GregorianCalendar(entryYear, entryMonth, entryDay, entryHour, entryMinute,
        entrySecond);
    return c.getTime().getTime();
  }

  /**
   * Whether or not the entry is a directory.
   * 
   * @return true if the entry is a directory, false if not.
   */
  public boolean isDirectory() {
    return (entryType & 0x40) == 0x40;
  }

  /**
   * Whether or not the entry is a file.
   * 
   * @return true if the entry is a file, false if not.
   */
  public boolean isFile() {
    return (entryType & 0x80) == 0x80;
  }
}

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