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1
7 package com.ibm.icu.impl;
9
10
13 public final class ByteBuffer {
14 private byte[] data;
15
16 private int pos;
17
18 private int limit;
19
20 private ByteBuffer() {
21 }
22
23 public byte[] array() {
24 byte[] result = new byte[limit];
25 for (int i = 0; i < limit; ++i) {
26 result[i] = data[i];
27 }
28 return result;
29 }
30
31 public static ByteBuffer wrap(byte[] data) {
32 if (data == null)
33 throw new NullPointerException  ();
34 ByteBuffer result = new ByteBuffer();
35 result.data = data;
36 result.pos = 0;
37 result.limit = data.length;
38 return result;
39 }
40
41 public int limit() {
42 return limit;
43 }
44
45 public int remaining() {
46 return limit - pos;
47 }
48
49 public byte get() {
50 if (pos < limit)
51 return data[pos++];
52 throw new IndexOutOfBoundsException ();
53 }
54
55 public void get(byte[] dst, int offset, int length) {
56 if (offset < 0 || offset + length > dst.length || pos + length > limit) {
57 throw new IndexOutOfBoundsException ();
58 }
59 for (int i = 0; i < length; ++i) {
60 dst[offset++] = data[pos++];
61 }
62 }
63 public static final ByteBuffer allocate(int size){
64 ByteBuffer ret = new ByteBuffer();
65 ret.data = new byte[size];
66 return ret;
67 }
68 }
69 |
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