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80500544 NR |
1 | package be.nikiroo.utils; |
2 | ||
3 | import java.io.IOException; | |
4 | import java.io.InputStream; | |
5 | ||
6 | /** | |
7 | * This class represents an image data. | |
8 | * | |
9 | * @author niki | |
10 | */ | |
11 | public class Image { | |
12 | private byte[] data; | |
13 | ||
14 | /** | |
15 | * Do not use -- for serialisation purposes only. | |
16 | */ | |
17 | @SuppressWarnings("unused") | |
18 | private Image() { | |
19 | } | |
20 | ||
21 | /** | |
22 | * Create a new {@link Image} with the given data. | |
23 | * | |
24 | * @param data | |
25 | * the data | |
26 | */ | |
27 | public Image(byte[] data) { | |
28 | this.data = data; | |
29 | } | |
30 | ||
31 | /** | |
32 | * Create a new {@link Image} from its Base64 representation. | |
33 | * | |
34 | * @param base64 | |
35 | * the {@link Image} in Base64 format | |
36 | * | |
37 | * @throws IOException | |
38 | * in case of I/O error | |
39 | */ | |
40 | public Image(String base64) throws IOException { | |
41 | this(Base64.decode(base64)); | |
42 | } | |
43 | ||
44 | /** | |
45 | * Create a new {@link Image} from a stream. | |
46 | * | |
47 | * @param in | |
48 | * the stream | |
49 | * | |
50 | * @throws IOException | |
51 | * in case of I/O error | |
52 | */ | |
53 | public Image(InputStream in) throws IOException { | |
54 | this.data = IOUtils.toByteArray(in); | |
55 | } | |
56 | ||
57 | /** | |
58 | * The actual image data. | |
59 | * <p> | |
60 | * This is the actual data, not a copy, so any change made here will be | |
61 | * reflected into the {@link Image} and vice-versa. | |
62 | * | |
63 | * @return the image data | |
64 | */ | |
65 | public byte[] getData() { | |
66 | return data; | |
67 | } | |
68 | ||
69 | /** | |
70 | * Convert the given {@link Image} object into a Base64 representation of | |
71 | * the same {@link Image} object. | |
72 | * | |
73 | * @return the Base64 representation | |
74 | */ | |
75 | public String toBase64() { | |
76 | return new String(Base64.encodeBytes(getData())); | |
77 | } | |
78 | } |