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38
39 package com.sun.xml.fastinfoset.algorithm;
40
41 import com.sun.xml.fastinfoset.algorithm.BuiltInEncodingAlgorithm.WordListener;
42 import java.util.ArrayList  ;
43 import java.util.List ;
44 import java.io.EOFException ;
45 import java.io.IOException ;
46 import java.io.InputStream ;
47 import java.io.OutputStream ;
48 import java.nio.CharBuffer ;
49 import java.util.ArrayList ;
50 import org.jvnet.fastinfoset.EncodingAlgorithmException;
51 import com.sun.xml.fastinfoset.CommonResourceBundle;
52
53 public class UUIDEncodingAlgorithm extends LongEncodingAlgorithm {
54
55 public final int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
56 if (octetLength % (LONG_SIZE * 2) != 0) {
57 throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
58 getString("message.lengthNotMultipleOfUUID",new Object []{new Integer (LONG_SIZE * 2)}));
59 }
60
61 return octetLength / LONG_SIZE;
62 }
63
64 public final Object convertFromCharacters(char[] ch, int start, int length) {
65 final CharBuffer cb = CharBuffer.wrap(ch, start, length);
66 final List longList = new ArrayList ();
67
68 matchWhiteSpaceDelimnatedWords(cb,
69 new WordListener() {
70 public void word(int start, int end) {
71 String uuidValue = cb.subSequence(start, end).toString();
72 fromUUIDString(uuidValue);
73 longList.add(new Long (_msb));
74 longList.add(new Long (_lsb));
75 }
76 }
77 );
78
79 return generateArrayFromList(longList);
80 }
81
82 public final void convertToCharacters(Object data, StringBuffer s) {
83 if (!(data instanceof long[])) {
84 throw new IllegalArgumentException (CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
85 }
86
87 final long[] ldata = (long[])data;
88
89 final int end = ldata.length - 1;
90 for (int i = 0; i <= end; i += 2) {
91 s.append(toUUIDString(ldata[i], ldata[i + 1]));
92 if (i != end) {
93 s.append(' ');
94 }
95 }
96 }
97
98
99 private long _msb;
100 private long _lsb;
101
102 final void fromUUIDString(String name) {
103 String [] components = name.split("-");
104 if (components.length != 5)
105 throw new IllegalArgumentException (CommonResourceBundle.getInstance().
106 getString("message.invalidUUID", new Object []{name}));
107
108 for (int i=0; i<5; i++)
109 components[i] = "0x"+components[i];
110
111 _msb = Long.parseLong(components[0], 16);
112 _msb <<= 16;
113 _msb |= Long.parseLong(components[1], 16);
114 _msb <<= 16;
115 _msb |= Long.parseLong(components[2], 16);
116
117 _lsb = Long.parseLong(components[3], 16);
118 _lsb <<= 48;
119 _lsb |= Long.parseLong(components[4], 16);
120 }
121
122 final String toUUIDString(long msb, long lsb) {
123 return (digits(msb >> 32, 8) + "-" +
124 digits(msb >> 16, 4) + "-" +
125 digits(msb, 4) + "-" +
126 digits(lsb >> 48, 4) + "-" +
127 digits(lsb, 12));
128 }
129
130 final String digits(long val, int digits) {
131 long hi = 1L << (digits * 4);
132 return Long.toHexString(hi | (val & (hi - 1))).substring(1);
133 }
134
135 }
136 |
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