root / trunk / web / dojo / dojox / uuid / generateTimeBasedUuid.js @ 11
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1 | 9 | andrej.cim | /*
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2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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4 | see: http://dojotoolkit.org/license for details
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5 | */
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6 | |||
7 | |||
8 | if(!dojo._hasResource["dojox.uuid.generateTimeBasedUuid"]){ |
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9 | dojo._hasResource["dojox.uuid.generateTimeBasedUuid"]=true; |
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10 | dojo.provide("dojox.uuid.generateTimeBasedUuid");
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11 | dojox.uuid.generateTimeBasedUuid=function(_1){ |
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12 | var _2=dojox.uuid.generateTimeBasedUuid._generator.generateUuidString(_1);
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13 | return _2;
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14 | }; |
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15 | dojox.uuid.generateTimeBasedUuid.isValidNode=function(_3){ |
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16 | var _4=16; |
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17 | var _5=parseInt(_3,_4);
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18 | var _6=dojo.isString(_3)&&_3.length==12&&isFinite(_5); |
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19 | return _6;
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20 | }; |
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21 | dojox.uuid.generateTimeBasedUuid.setNode=function(_7){ |
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22 | dojox.uuid.assert((_7===null)||this.isValidNode(_7)); |
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23 | this._uniformNode=_7;
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24 | }; |
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25 | dojox.uuid.generateTimeBasedUuid.getNode=function(){ |
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26 | return this._uniformNode; |
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27 | }; |
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28 | dojox.uuid.generateTimeBasedUuid._generator=new function(){ |
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29 | this.GREGORIAN_CHANGE_OFFSET_IN_HOURS=3394248; |
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30 | var _8=null; |
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31 | var _9=null; |
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32 | var _a=null; |
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33 | var _b=0; |
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34 | var _c=null; |
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35 | var _d=null; |
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36 | var _e=16; |
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37 | function _f(_10){ |
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38 | _10[2]+=_10[3]>>>16; |
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39 | _10[3]&=65535; |
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40 | _10[1]+=_10[2]>>>16; |
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41 | _10[2]&=65535; |
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42 | _10[0]+=_10[1]>>>16; |
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43 | _10[1]&=65535; |
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44 | dojox.uuid.assert((_10[0]>>>16)===0); |
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45 | }; |
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46 | function _11(x){ |
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47 | var _12=new Array(0,0,0,0); |
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48 | _12[3]=x%65536; |
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49 | x-=_12[3];
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50 | x/=65536;
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51 | _12[2]=x%65536; |
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52 | x-=_12[2];
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53 | x/=65536;
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54 | _12[1]=x%65536; |
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55 | x-=_12[1];
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56 | x/=65536;
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57 | _12[0]=x;
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58 | return _12;
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59 | }; |
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60 | function _13(_14,_15){ |
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61 | dojox.uuid.assert(dojo.isArray(_14)); |
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62 | dojox.uuid.assert(dojo.isArray(_15)); |
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63 | dojox.uuid.assert(_14.length==4);
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64 | dojox.uuid.assert(_15.length==4);
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65 | var _16=new Array(0,0,0,0); |
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66 | _16[3]=_14[3]+_15[3]; |
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67 | _16[2]=_14[2]+_15[2]; |
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68 | _16[1]=_14[1]+_15[1]; |
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69 | _16[0]=_14[0]+_15[0]; |
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70 | _f(_16); |
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71 | return _16;
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72 | }; |
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73 | function _17(_18,_19){ |
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74 | dojox.uuid.assert(dojo.isArray(_18)); |
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75 | dojox.uuid.assert(dojo.isArray(_19)); |
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76 | dojox.uuid.assert(_18.length==4);
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77 | dojox.uuid.assert(_19.length==4);
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78 | var _1a=false; |
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79 | if(_18[0]*_19[0]!==0){ |
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80 | _1a=true;
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81 | } |
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82 | if(_18[0]*_19[1]!==0){ |
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83 | _1a=true;
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84 | } |
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85 | if(_18[0]*_19[2]!==0){ |
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86 | _1a=true;
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87 | } |
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88 | if(_18[1]*_19[0]!==0){ |
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89 | _1a=true;
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90 | } |
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91 | if(_18[1]*_19[1]!==0){ |
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92 | _1a=true;
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93 | } |
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94 | if(_18[2]*_19[0]!==0){ |
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95 | _1a=true;
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96 | } |
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97 | dojox.uuid.assert(!_1a); |
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98 | var _1b=new Array(0,0,0,0); |
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99 | _1b[0]+=_18[0]*_19[3]; |
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100 | _f(_1b); |
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101 | _1b[0]+=_18[1]*_19[2]; |
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102 | _f(_1b); |
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103 | _1b[0]+=_18[2]*_19[1]; |
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104 | _f(_1b); |
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105 | _1b[0]+=_18[3]*_19[0]; |
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106 | _f(_1b); |
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107 | _1b[1]+=_18[1]*_19[3]; |
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108 | _f(_1b); |
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109 | _1b[1]+=_18[2]*_19[2]; |
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110 | _f(_1b); |
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111 | _1b[1]+=_18[3]*_19[1]; |
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112 | _f(_1b); |
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113 | _1b[2]+=_18[2]*_19[3]; |
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114 | _f(_1b); |
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115 | _1b[2]+=_18[3]*_19[2]; |
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116 | _f(_1b); |
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117 | _1b[3]+=_18[3]*_19[3]; |
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118 | _f(_1b); |
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119 | return _1b;
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120 | }; |
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121 | function _1c(_1d,_1e){ |
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122 | while(_1d.length<_1e){
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123 | _1d="0"+_1d;
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124 | } |
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125 | return _1d;
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126 | }; |
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127 | function _1f(){ |
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128 | var _20=Math.floor((Math.random()%1)*Math.pow(2,32)); |
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129 | var _21=_20.toString(_e);
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130 | while(_21.length<8){ |
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131 | _21="0"+_21;
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132 | } |
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133 | return _21;
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134 | }; |
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135 | this.generateUuidString=function(_22){ |
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136 | if(_22){
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137 | dojox.uuid.assert(dojox.uuid.generateTimeBasedUuid.isValidNode(_22)); |
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138 | }else{
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139 | if(dojox.uuid.generateTimeBasedUuid._uniformNode){
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140 | _22=dojox.uuid.generateTimeBasedUuid._uniformNode; |
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141 | }else{
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142 | if(!_8){
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143 | var _23=32768; |
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144 | var _24=Math.floor((Math.random()%1)*Math.pow(2,15)); |
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145 | var _25=(_23|_24).toString(_e);
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146 | _8=_25+_1f(); |
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147 | } |
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148 | _22=_8; |
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149 | } |
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150 | } |
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151 | if(!_9){
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152 | var _26=32768; |
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153 | var _27=Math.floor((Math.random()%1)*Math.pow(2,14)); |
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154 | _9=(_26|_27).toString(_e); |
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155 | } |
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156 | var now=new Date(); |
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157 | var _28=now.valueOf();
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158 | var _29=_11(_28);
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159 | if(!_c){
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160 | var _2a=_11(60*60); |
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161 | var _2b=_11(dojox.uuid.generateTimeBasedUuid._generator.GREGORIAN_CHANGE_OFFSET_IN_HOURS);
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162 | var _2c=_17(_2b,_2a);
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163 | var _2d=_11(1000); |
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164 | _c=_17(_2c,_2d); |
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165 | _d=_11(10000);
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166 | } |
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167 | var _2e=_29;
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168 | var _2f=_13(_c,_2e);
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169 | var _30=_17(_2f,_d);
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170 | if(now.valueOf()==_a){
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171 | _30[3]+=_b;
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172 | _f(_30); |
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173 | _b+=1;
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174 | if(_b==10000){ |
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175 | while(now.valueOf()==_a){
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176 | now=new Date();
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177 | } |
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178 | } |
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179 | }else{
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180 | _a=now.valueOf(); |
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181 | _b=1;
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182 | } |
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183 | var _31=_30[2].toString(_e); |
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184 | var _32=_30[3].toString(_e); |
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185 | var _33=_1c(_31,4)+_1c(_32,4); |
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186 | var _34=_30[1].toString(_e); |
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187 | _34=_1c(_34,4);
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188 | var _35=_30[0].toString(_e); |
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189 | _35=_1c(_35,3);
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190 | var _36="-"; |
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191 | var _37="1"; |
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192 | var _38=_33+_36+_34+_36+_37+_35+_36+_9+_36+_22;
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193 | _38=_38.toLowerCase(); |
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194 | return _38;
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195 | }; |
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196 | }(); |
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197 | } |