Android Open Source - makler Byte Array Utils

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Back to project page makler.

License

The source code is released under:

GNU General Public License

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Java Source Code

package pl.net.newton.Makler.history;
/*from   w ww.  jav  a  2s .  c  o m*/
import java.util.Calendar;

public final class ByteArrayUtils {
  private ByteArrayUtils() {
  }

  public static int search(byte[] needle, byte[] haystack, int from, int to) {
    for (int i = from; i < to - needle.length; i++) {
      boolean ok = true;
      for (int j = 0; j < needle.length; j++) {
        if (needle[j] != haystack[i + j]) {
          ok = false;
          break;
        }
      }
      if (ok) {
        return i;
      }
    }
    return -1;
  }

  public static int nextLine(byte[] haystack, int offset) {
    return findNext((byte) '\n', haystack, offset) + 1;
  }

  public static int findNext(byte needle, byte[] haystack, int offset) {
    for (int i = offset; i < haystack.length; i++) {
      if (haystack[i] == needle) {
        return i;
      }
    }
    return -1;
  }

  public static long[] parseLong(byte[] array, int offset, long[] result) {
    return parseLong(array, offset, 0, result);
  }

  public static long[] parseLong(byte[] array, int offset, int multiplier, long[] result) {
    result[0] = 0;

    boolean decimal = false;
    int i, m = multiplier;
    for (i = offset; i < array.length; i++) {
      final byte digit = array[i];
      if (digit == '.') {
        decimal = true;
      } else if ((digit < '0' || digit > '9') || (decimal && m == 0)) {
        break;
      } else {
        result[0] *= 10;
        result[0] += array[i] - '0';
        if (decimal) {
          m--;
        }
      }
    }
    for (int j = 0; j < m; j++) {
      result[0] *= 10;
    }
    result[1] = i;
    return result;
  }

  public static void setDate(Calendar cal, long date) {
    int year = (int) (date / 10000);
    int month = (int) ((date / 100) % 100);
    int day = (int) (date % 100);
    cal.set(year, month - 1, day);
  }

  public static void setTime(Calendar cal, long time) {
    int hour = (int) (time / 10000);
    int minute = (int) ((time / 100) % 100);
    int second = (int) (time % 100);
    cal.set(Calendar.HOUR_OF_DAY, hour);
    cal.set(Calendar.MINUTE, minute);
    cal.set(Calendar.SECOND, second);
  }

}

Java Source Code List