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1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the "License"). You may not use this file except
5  * in compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * glassfish/bootstrap/legal/CDDLv1.0.txt or
9  * https://glassfish.dev.java.net/public/CDDLv1.0.html.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * HEADER in each file and include the License file at
15  * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
16  * add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your
18  * own identifying information: Portions Copyright [yyyy]
19  * [name of copyright owner]
20  */
21
22 /*
23  * @(#)ByteArray.java 1.5 05/08/29
24  *
25  * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
26  */
27
28 package com.sun.mail.iap;
29
30 import java.io.ByteArrayInputStream JavaDoc;
31
32 /**
33  * A simple wrapper around a byte array, with a start position and
34  * count of bytes.
35  *
36  * @version 1.5, 05/08/29
37  * @author John Mani
38  */
39
40 public class ByteArray {
41     private byte[] bytes; // the byte array
42 private int start; // start position
43 private int count; // count of bytes
44
45     /**
46      * Constructor
47      */
48     public ByteArray(byte[] b, int start, int count) {
49     bytes = b;
50     this.start = start;
51     this.count = count;
52     }
53
54     /**
55      * Returns the internal byte array. Note that this is a live
56      * reference to the actual data, not a copy.
57      */
58     public byte[] getBytes() {
59     return bytes;
60     }
61
62     /**
63      * Returns a new byte array that is a copy of the data.
64      */
65     public byte[] getNewBytes() {
66     byte[] b = new byte[count];
67     System.arraycopy(bytes, start, b, 0, count);
68     return b;
69     }
70
71     /**
72      * Returns the start position
73      */
74     public int getStart() {
75     return start;
76     }
77
78     /**
79      * Returns the count of bytes
80      */
81     public int getCount() {
82     return count;
83     }
84
85     /**
86      * Returns a ByteArrayInputStream.
87      */
88     public ByteArrayInputStream JavaDoc toByteArrayInputStream() {
89     return new ByteArrayInputStream JavaDoc(bytes, start, count);
90     }
91 }
92
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