1 package nom.tam.util;
2
3 /*
4 * #%L
5 * nom.tam FITS library
6 * %%
7 * Copyright (C) 1996 - 2024 nom-tam-fits
8 * %%
9 * This is free and unencumbered software released into the public domain.
10 *
11 * Anyone is free to copy, modify, publish, use, compile, sell, or
12 * distribute this software, either in source code form or as a compiled
13 * binary, for any purpose, commercial or non-commercial, and by any
14 * means.
15 *
16 * In jurisdictions that recognize copyright laws, the author or authors
17 * of this software dedicate any and all copyright interest in the
18 * software to the public domain. We make this dedication for the benefit
19 * of the public at large and to the detriment of our heirs and
20 * successors. We intend this dedication to be an overt act of
21 * relinquishment in perpetuity of all present and future rights to this
22 * software under copyright law.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
27 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
28 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
29 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
30 * OTHER DEALINGS IN THE SOFTWARE.
31 * #L%
32 */
33
34 import java.io.IOException;
35 import java.io.OutputStream;
36 import java.nio.ByteBuffer;
37
38 /**
39 * Stream interface for writing to a {@link ByteBuffer} (<i>primarily for internal use</i>)
40 *
41 * @see ByteBufferOutputStream
42 * @see ByteArrayIO
43 */
44 public class ByteBufferOutputStream extends OutputStream {
45
46 private final ByteBuffer buffer;
47
48 /**
49 * Creates an new <code>OutpuStream</code>, which writes a <code>ByteBuffer</code> starting at the current buffer
50 * position. Its <code>write()</code> methods can be intermixed with the <code>put()</code> methods of the buffer,
51 * and also with {@link ByteBuffer#position(int)}, maintaining overall sequentiality of the calls. In other words,
52 * the stream's output is not decopuled from direct access to the buffer.
53 *
54 * @param buffer the buffer to write to
55 */
56 public ByteBufferOutputStream(ByteBuffer buffer) {
57 this.buffer = buffer;
58 }
59
60 @Override
61 public void write(int b) throws IOException {
62 buffer.put((byte) b);
63 }
64
65 @Override
66 public void write(byte[] b, int off, int len) throws IOException {
67 buffer.put(b, off, len);
68 }
69
70 }