1 package nom.tam.util.type;
2
3 /*
4 * #%L
5 * nom.tam FITS library
6 * %%
7 * Copyright (C) 2004 - 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.nio.ByteBuffer;
35
36 import nom.tam.fits.header.Bitpix;
37
38 /**
39 * A FITS byte element (signed).
40 */
41 class ByteType extends ElementType<ByteBuffer> {
42
43 protected ByteType() {
44 super(1, false, byte.class, Byte.class, ByteBuffer.class, 'B', Bitpix.VALUE_FOR_BYTE);
45 }
46
47 @Override
48 public void appendBuffer(ByteBuffer buffer, ByteBuffer dataToAppend) {
49 @SuppressWarnings("deprecation")
50 byte[] temp = new byte[Math.min(COPY_BLOCK_SIZE, dataToAppend.remaining())];
51 while (dataToAppend.hasRemaining()) {
52 int nrObBytes = Math.min(temp.length, dataToAppend.remaining());
53 dataToAppend.get(temp, 0, nrObBytes);
54 buffer.put(temp, 0, nrObBytes);
55 }
56 }
57
58 @Override
59 public ByteBuffer asTypedBuffer(ByteBuffer buffer) {
60 return buffer;
61 }
62
63 @Override
64 public void getArray(ByteBuffer buffer, Object array, int offset, int length) {
65 buffer.get((byte[]) array, offset, length);
66 }
67
68 @Override
69 public Object newArray(int length) {
70 return new byte[length];
71 }
72
73 @Override
74 public void putArray(ByteBuffer buffer, Object array, int offset, int length) {
75 buffer.put((byte[]) array, offset, length);
76 }
77
78 @Override
79 public ByteBuffer sliceBuffer(ByteBuffer buffer) {
80 return buffer.slice();
81 }
82
83 @Override
84 public ByteBuffer wrap(Object array) {
85 return ByteBuffer.wrap((byte[]) array);
86 }
87 }