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annotate src/org/eclipse/jetty/util/StringUtil.java @ 837:3ff59e08a1b7

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fix last commit
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 16 Sep 2016 12:56:08 -0600
parents 8e9db0bbf4f9
children 3242aff51053
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.util;
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20
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21 import java.io.UnsupportedEncodingException;
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22 import java.nio.charset.Charset;
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23
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24 import org.slf4j.Logger;
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25 import org.slf4j.LoggerFactory;
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26
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27 /** Fast String Utilities.
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28 *
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29 * These string utilities provide both conveniance methods and
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30 * performance improvements over most standard library versions. The
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31 * main aim of the optimizations is to avoid object creation unless
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32 * absolutely required.
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33 *
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34 *
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35 */
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36 public class StringUtil
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37 {
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38 private static final Logger LOG = LoggerFactory.getLogger(StringUtil.class);
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39
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40 public static final String ALL_INTERFACES="0.0.0.0";
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41 public static final String CRLF="\015\012";
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42 public static final String __LINE_SEPARATOR=
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43 System.getProperty("line.separator","\n");
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44
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45 public static final String __ISO_8859_1="ISO-8859-1";
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46 public final static String __UTF8="UTF-8";
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47 public final static String __UTF8Alt="UTF8";
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48 public final static String __UTF16="UTF-16";
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49
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50 public final static Charset __UTF8_CHARSET;
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51 public final static Charset __ISO_8859_1_CHARSET;
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52
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53 static
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54 {
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55 __UTF8_CHARSET=Charset.forName(__UTF8);
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56 __ISO_8859_1_CHARSET=Charset.forName(__ISO_8859_1);
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57 }
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58
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59 private static char[] lowercases = {
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60 '\000','\001','\002','\003','\004','\005','\006','\007',
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61 '\010','\011','\012','\013','\014','\015','\016','\017',
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62 '\020','\021','\022','\023','\024','\025','\026','\027',
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63 '\030','\031','\032','\033','\034','\035','\036','\037',
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64 '\040','\041','\042','\043','\044','\045','\046','\047',
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65 '\050','\051','\052','\053','\054','\055','\056','\057',
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66 '\060','\061','\062','\063','\064','\065','\066','\067',
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67 '\070','\071','\072','\073','\074','\075','\076','\077',
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68 '\100','\141','\142','\143','\144','\145','\146','\147',
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69 '\150','\151','\152','\153','\154','\155','\156','\157',
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70 '\160','\161','\162','\163','\164','\165','\166','\167',
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71 '\170','\171','\172','\133','\134','\135','\136','\137',
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72 '\140','\141','\142','\143','\144','\145','\146','\147',
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73 '\150','\151','\152','\153','\154','\155','\156','\157',
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74 '\160','\161','\162','\163','\164','\165','\166','\167',
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75 '\170','\171','\172','\173','\174','\175','\176','\177' };
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76
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77 /* ------------------------------------------------------------ */
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78 /**
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79 * fast lower case conversion. Only works on ascii (not unicode)
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80 * @param s the string to convert
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81 * @return a lower case version of s
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82 */
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83 public static String asciiToLowerCase(String s)
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84 {
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85 char[] c = null;
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86 int i=s.length();
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87
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88 // look for first conversion
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89 while (i-->0)
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90 {
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91 char c1=s.charAt(i);
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92 if (c1<=127)
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93 {
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94 char c2=lowercases[c1];
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95 if (c1!=c2)
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96 {
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97 c=s.toCharArray();
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98 c[i]=c2;
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99 break;
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100 }
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101 }
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102 }
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103
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104 while (i-->0)
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105 {
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106 if(c[i]<=127)
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107 c[i] = lowercases[c[i]];
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108 }
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109
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110 return c==null?s:new String(c);
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111 }
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112
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113
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114 /* ------------------------------------------------------------ */
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115 public static boolean startsWithIgnoreCase(String s,String w)
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116 {
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117 if (w==null)
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118 return true;
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119
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120 if (s==null || s.length()<w.length())
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121 return false;
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122
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123 for (int i=0;i<w.length();i++)
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124 {
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125 char c1=s.charAt(i);
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126 char c2=w.charAt(i);
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127 if (c1!=c2)
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128 {
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129 if (c1<=127)
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130 c1=lowercases[c1];
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131 if (c2<=127)
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132 c2=lowercases[c2];
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133 if (c1!=c2)
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134 return false;
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135 }
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136 }
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137 return true;
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138 }
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139
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140 /* ------------------------------------------------------------ */
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141 public static boolean endsWithIgnoreCase(String s,String w)
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142 {
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143 if (w==null)
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144 return true;
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145
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146 if (s==null)
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147 return false;
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148
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149 int sl=s.length();
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150 int wl=w.length();
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151
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152 if (sl<wl)
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153 return false;
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154
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155 for (int i=wl;i-->0;)
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156 {
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157 char c1=s.charAt(--sl);
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158 char c2=w.charAt(i);
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159 if (c1!=c2)
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160 {
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161 if (c1<=127)
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162 c1=lowercases[c1];
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diff changeset
163 if (c2<=127)
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diff changeset
164 c2=lowercases[c2];
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165 if (c1!=c2)
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166 return false;
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167 }
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168 }
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169 return true;
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170 }
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171
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172 /* ------------------------------------------------------------ */
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173 /**
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174 * returns the next index of a character from the chars string
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175 */
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176 public static int indexFrom(String s,String chars)
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177 {
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178 for (int i=0;i<s.length();i++)
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179 if (chars.indexOf(s.charAt(i))>=0)
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180 return i;
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181 return -1;
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182 }
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183
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184 /* ------------------------------------------------------------ */
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185 /**
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186 * replace substrings within string.
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187 */
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188 public static String replace(String s, String sub, String with)
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189 {
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190 int c=0;
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191 int i=s.indexOf(sub,c);
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192 if (i == -1)
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193 return s;
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194
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195 StringBuilder buf = new StringBuilder(s.length()+with.length());
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196
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197 do
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198 {
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199 buf.append(s.substring(c,i));
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200 buf.append(with);
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201 c=i+sub.length();
3428c60d7cfc replace jetty jars with source
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202 } while ((i=s.indexOf(sub,c))!=-1);
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203
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204 if (c<s.length())
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205 buf.append(s.substring(c,s.length()));
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206
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207 return buf.toString();
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208
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209 }
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210
3428c60d7cfc replace jetty jars with source
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211
3428c60d7cfc replace jetty jars with source
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parents:
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212 /* ------------------------------------------------------------ */
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diff changeset
213 /** Remove single or double quotes.
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214 */
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215 public static String unquote(String s)
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diff changeset
216 {
3428c60d7cfc replace jetty jars with source
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diff changeset
217 return QuotedStringTokenizer.unquote(s);
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diff changeset
218 }
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diff changeset
219
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
220
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
221 /* ------------------------------------------------------------ */
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parents:
diff changeset
222 /** Append substring to StringBuilder
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
223 * @param buf StringBuilder to append to
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
224 * @param s String to append from
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
225 * @param offset The offset of the substring
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
226 * @param length The length of the substring
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diff changeset
227 */
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diff changeset
228 public static void append(StringBuilder buf,
3428c60d7cfc replace jetty jars with source
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diff changeset
229 String s,
3428c60d7cfc replace jetty jars with source
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diff changeset
230 int offset,
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
231 int length)
3428c60d7cfc replace jetty jars with source
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diff changeset
232 {
3428c60d7cfc replace jetty jars with source
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diff changeset
233 synchronized(buf)
3428c60d7cfc replace jetty jars with source
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234 {
3428c60d7cfc replace jetty jars with source
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diff changeset
235 int end=offset+length;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
236 for (int i=offset; i<end;i++)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
237 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
238 if (i>=s.length())
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
239 break;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
240 buf.append(s.charAt(i));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
241 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
242 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
243 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
244
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
245
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
246 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
247 /**
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
248 * append hex digit
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
249 *
3428c60d7cfc replace jetty jars with source
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diff changeset
250 */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
251 public static void append(StringBuilder buf,byte b,int base)
3428c60d7cfc replace jetty jars with source
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diff changeset
252 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
253 int bi=0xff&b;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
254 int c='0'+(bi/base)%base;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
255 if (c>'9')
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
256 c= 'a'+(c-'0'-10);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
257 buf.append((char)c);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
258 c='0'+bi%base;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
259 if (c>'9')
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
260 c= 'a'+(c-'0'-10);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
261 buf.append((char)c);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
262 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
263
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
264 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
265 public static void append2digits(StringBuffer buf,int i)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
266 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
267 if (i<100)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
268 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
269 buf.append((char)(i/10+'0'));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
270 buf.append((char)(i%10+'0'));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
271 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
272 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
273
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
274 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
275 public static void append2digits(StringBuilder buf,int i)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
276 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
277 if (i<100)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
278 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
279 buf.append((char)(i/10+'0'));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
280 buf.append((char)(i%10+'0'));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
281 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
282 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
283
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
284 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
285 /** Return a non null string.
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
286 * @param s String
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
287 * @return The string passed in or empty string if it is null.
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
288 */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
289 public static String nonNull(String s)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
290 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
291 if (s==null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
292 return "";
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
293 return s;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
294 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
295
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
296 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
297 public static boolean equals(String s,char[] buf, int offset, int length)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
298 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
299 if (s.length()!=length)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
300 return false;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
301 for (int i=0;i<length;i++)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
302 if (buf[offset+i]!=s.charAt(i))
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
303 return false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
304 return true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
305 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
306
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
307 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
308 public static String toUTF8String(byte[] b,int offset,int length)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
309 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
310 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
311 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
312 return new String(b,offset,length,__UTF8);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
313 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
314 catch (UnsupportedEncodingException e)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
315 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
316 throw new IllegalArgumentException(e);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
317 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
318 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
319
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
320 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
321 public static String toString(byte[] b,int offset,int length,String charset)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
322 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
323 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
324 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
325 return new String(b,offset,length,charset);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
326 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
327 catch (UnsupportedEncodingException e)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
328 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
329 throw new IllegalArgumentException(e);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
330 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
331 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
332
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
333
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
334 /* ------------------------------------------------------------ */
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parents:
diff changeset
335 public static boolean isUTF8(String charset)
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parents:
diff changeset
336 {
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diff changeset
337 return __UTF8.equalsIgnoreCase(charset)||__UTF8Alt.equalsIgnoreCase(charset);
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diff changeset
338 }
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parents:
diff changeset
339
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
340
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
341 /* ------------------------------------------------------------ */
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parents:
diff changeset
342 public static String printable(String name)
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parents:
diff changeset
343 {
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parents:
diff changeset
344 if (name==null)
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345 return null;
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parents:
diff changeset
346 StringBuilder buf = new StringBuilder(name.length());
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parents:
diff changeset
347 for (int i=0;i<name.length();i++)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
348 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
349 char c=name.charAt(i);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
350 if (!Character.isISOControl(c))
3428c60d7cfc replace jetty jars with source
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diff changeset
351 buf.append(c);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
352 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
353 return buf.toString();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
354 }
3428c60d7cfc replace jetty jars with source
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diff changeset
355
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
356 /* ------------------------------------------------------------ */
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parents:
diff changeset
357 public static String printable(byte[] b)
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parents:
diff changeset
358 {
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parents:
diff changeset
359 StringBuilder buf = new StringBuilder();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
360 for (int i=0;i<b.length;i++)
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parents:
diff changeset
361 {
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parents:
diff changeset
362 char c=(char)b[i];
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
363 if (Character.isWhitespace(c)|| c>' ' && c<0x7f)
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parents:
diff changeset
364 buf.append(c);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
365 else
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
366 {
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parents:
diff changeset
367 buf.append("0x");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
368 TypeUtil.toHex(b[i],buf);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
369 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
370 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
371 return buf.toString();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
372 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
373
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
374 public static byte[] getBytes(String s)
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parents:
diff changeset
375 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
376 try
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
377 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
378 return s.getBytes(__ISO_8859_1);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
379 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
380 catch(Exception e)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
381 {
820
8e9db0bbf4f9 remove org.eclipse.jetty.util.log and upgrade slf4j
Franklin Schmidt <fschmidt@gmail.com>
parents: 802
diff changeset
382 LOG.warn("",e);
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
383 return s.getBytes();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
384 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
385 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
386
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
387 public static byte[] getBytes(String s,String charset)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
388 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
389 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
390 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
391 return s.getBytes(charset);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
392 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
393 catch(Exception e)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
394 {
820
8e9db0bbf4f9 remove org.eclipse.jetty.util.log and upgrade slf4j
Franklin Schmidt <fschmidt@gmail.com>
parents: 802
diff changeset
395 LOG.warn("",e);
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
396 return s.getBytes();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
397 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
398 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
399
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
400
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
401
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
402 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
403 * Converts a binary SID to a string SID
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
404 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
405 * http://en.wikipedia.org/wiki/Security_Identifier
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
406 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
407 * S-1-IdentifierAuthority-SubAuthority1-SubAuthority2-...-SubAuthorityn
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
408 */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
409 public static String sidBytesToString(byte[] sidBytes)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
410 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
411 StringBuilder sidString = new StringBuilder();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
412
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
413 // Identify this as a SID
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
414 sidString.append("S-");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
415
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
416 // Add SID revision level (expect 1 but may change someday)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
417 sidString.append(Byte.toString(sidBytes[0])).append('-');
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
418
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
419 StringBuilder tmpBuilder = new StringBuilder();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
420
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
421 // crunch the six bytes of issuing authority value
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
422 for (int i = 2; i <= 7; ++i)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
423 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
424 tmpBuilder.append(Integer.toHexString(sidBytes[i] & 0xFF));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
425 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
426
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
427 sidString.append(Long.parseLong(tmpBuilder.toString(), 16)); // '-' is in the subauth loop
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
428
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
429 // the number of subAuthorities we need to attach
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
430 int subAuthorityCount = sidBytes[1];
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
431
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
432 // attach each of the subAuthorities
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
433 for (int i = 0; i < subAuthorityCount; ++i)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
434 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
435 int offset = i * 4;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
436 tmpBuilder.setLength(0);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
437 // these need to be zero padded hex and little endian
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
438 tmpBuilder.append(String.format("%02X%02X%02X%02X",
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
439 (sidBytes[11 + offset] & 0xFF),
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
440 (sidBytes[10 + offset] & 0xFF),
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
441 (sidBytes[9 + offset] & 0xFF),
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
442 (sidBytes[8 + offset] & 0xFF)));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
443 sidString.append('-').append(Long.parseLong(tmpBuilder.toString(), 16));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
444 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
445
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
446 return sidString.toString();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
447 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
448
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
449 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
450 * Converts a string SID to a binary SID
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
451 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
452 * http://en.wikipedia.org/wiki/Security_Identifier
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
453 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
454 * S-1-IdentifierAuthority-SubAuthority1-SubAuthority2-...-SubAuthorityn
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
455 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
456 public static byte[] sidStringToBytes( String sidString )
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
457 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
458 String[] sidTokens = sidString.split("-");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
459
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
460 int subAuthorityCount = sidTokens.length - 3; // S-Rev-IdAuth-
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
461
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
462 int byteCount = 0;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
463 byte[] sidBytes = new byte[1 + 1 + 6 + (4 * subAuthorityCount)];
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
464
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
465 // the revision byte
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
466 sidBytes[byteCount++] = (byte)Integer.parseInt(sidTokens[1]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
467
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
468 // the # of sub authorities byte
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
469 sidBytes[byteCount++] = (byte)subAuthorityCount;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
470
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
471 // the certAuthority
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
472 String hexStr = Long.toHexString(Long.parseLong(sidTokens[2]));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
473
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
474 while( hexStr.length() < 12) // pad to 12 characters
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
475 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
476 hexStr = "0" + hexStr;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
477 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
478
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
479 // place the certAuthority 6 bytes
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
480 for ( int i = 0 ; i < hexStr.length(); i = i + 2)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
481 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
482 sidBytes[byteCount++] = (byte)Integer.parseInt(hexStr.substring(i, i + 2),16);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
483 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
484
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
485
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
486 for ( int i = 3; i < sidTokens.length ; ++i)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
487 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
488 hexStr = Long.toHexString(Long.parseLong(sidTokens[i]));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
489
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
490 while( hexStr.length() < 8) // pad to 8 characters
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
491 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
492 hexStr = "0" + hexStr;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
493 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
494
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
495 // place the inverted sub authorities, 4 bytes each
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
496 for ( int j = hexStr.length(); j > 0; j = j - 2)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
497 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
498 sidBytes[byteCount++] = (byte)Integer.parseInt(hexStr.substring(j-2, j),16);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
499 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
500 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
501
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
502 return sidBytes;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
503 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
504 }