jcryptoboard-api/src/main/java/jcryptoboard/api/types/ByteArray.java

   1 package jcryptoboard.api.types;
   2
   3 import org.apache.commons.lang.ArrayUtils;
   4 import org.apache.commons.lang.mutable.Mutable;
   5
   6 public class ByteArray implements Mutable {
   7
   8     private byte[] array;
   9
  10     public ByteArray() {
  11         this.array = ArrayUtils.EMPTY_BYTE_ARRAY;
  12     }
  13
  14     public ByteArray(int length) {
  15         this.array = new byte[length];
  16     }
  17
  18     public void setCapacity(int capacity) {
  19         if (array == null) {
  20             array = new byte[capacity];
  21         } else if (array.length < capacity) {
  22             byte[] newArray = new byte[capacity];
  23             System.arraycopy(array, 0, newArray, 0, array.length);
  24             array = newArray;
  25         }
  26     }
  27
  28     public void setSize(int size) {
  29         if (array == null) {
  30             array = new byte[size];
  31         } else if (array.length != size) {
  32             byte[] newArray = new byte[size];
  33             System.arraycopy(array, 0, newArray, 0, Math.min(array.length, size));
  34             array = newArray;
  35         }
  36     }
  37
  38     public byte[] getArray() {
  39         return array;
  40     }
  41
  42     public byte[] getCopy() {
  43         return ArrayUtils.clone(array);
  44     }
  45
  46     public byte getFirst() {
  47         if ((array != null) && array.length > 0)
  48             return array[0];
  49
  50         return 0;
  51     }
  52
  53     public byte getLast() {
  54         if ((array != null) && array.length > 0)
  55             return array[array.length-1];
  56
  57         return 0;
  58     }
  59
  60     public int getLength() {
  61         return array.length;
  62     }
  63
  64     public byte[] getValue() {
  65         return array;
  66     }
  67
  68     public void setValue(Object value) {
  69         array = (byte[]) value;
  70
  71     }
  72 }