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1
3 package jodd.typeconverter;
4
5 import java.sql.Blob  ;
6 import java.sql.SQLException ;
7
8
11 public class ByteArrayConverter implements TypeConverter {
12
13 public static byte[] valueOf(Object value) {
14 if (value == null) {
15 return null;
16 }
17 Class type = value.getClass();
18 if (type.isArray() == false) {
19 if (value instanceof Number ) {
20 return new byte[] {((Number ) value).byteValue()};
21 }
22 if (value instanceof Blob ) {
23 Blob blob = (Blob ) value;
24 try {
25 long length = blob.length();
26 if (length > Integer.MAX_VALUE) {
27 throw new TypeConversionException("Blob is too big.");
28 }
29 return blob.getBytes(1, (int) length);
30 } catch (SQLException sex) {
31 throw new TypeConversionException(sex);
32 }
33 }
34 try {
35 return new byte[] {Byte.parseByte(value.toString())};
36 } catch (NumberFormatException nfex) {
37 throw new TypeConversionException(nfex);
38 }
39 }
40
41 if (type == byte[].class) {
42 return (byte[]) value;
43 }
44 if (type == int[].class) {
45 int[] values = (int[]) value;
46 byte[] results = new byte[values.length];
47 for (int i = 0; i < values.length; i++) {
48 results[i] = (byte) values[i];
49 }
50 return results;
51 }
52 if (type == long[].class) {
53 long[] values = (long[]) value;
54 byte[] results = new byte[values.length];
55 for (int i = 0; i < values.length; i++) {
56 results[i] = (byte) values[i];
57 }
58 return results;
59 }
60 if (type == double[].class) {
61 double[] values = (double[]) value;
62 byte[] results = new byte[values.length];
63 for (int i = 0; i < values.length; i++) {
64 results[i] = (byte) values[i];
65 }
66 return results;
67 }
68 if (type == float[].class) {
69 float[] values = (float[]) value;
70 byte[] results = new byte[values.length];
71 for (int i = 0; i < values.length; i++) {
72 results[i] = (byte) values[i];
73 }
74 return results;
75 }
76 if (type == boolean[].class) {
77 boolean[] values = (boolean[]) value;
78 byte[] results = new byte[values.length];
79 for (int i = 0; i < values.length; i++) {
80 results[i] = (byte) (values[i] == true ? 1 : 0);
81 }
82 return results;
83 }
84 if (type == short[].class) {
85 short[] values = (short[]) value;
86 byte[] results = new byte[values.length];
87 for (int i = 0; i < values.length; i++) {
88 results[i] = (byte) values[i];
89 }
90 return results;
91 }
92
93
94 Object [] values = (Object []) value;
95 byte[] results = new byte[values.length];
96 try {
97 for (int i = 0; i < values.length; i++) {
98 if (values[i] instanceof Number ) {
99 results[i] = ((Number ) values[i]).byteValue();
100 } else {
101 results[i] = Byte.parseByte(values[i].toString());
102 }
103 }
104 } catch (NumberFormatException nfex) {
105 throw new TypeConversionException(nfex);
106 }
107 return results;
108 }
109
110 public Object convert(Object value) {
111 return valueOf(value);
112 }
113 }
114 |
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