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- define("dojox/uuid/generateTimeBasedUuid", [ 'dojo/_base/lang', './_base'], function(lang){
- dojox.uuid.generateTimeBasedUuid = function(/*String?*/ node){
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- var uuidString = dojox.uuid.generateTimeBasedUuid._generator.generateUuidString(node);
- return uuidString;
- };
- dojox.uuid.generateTimeBasedUuid.isValidNode = function(/*String?*/ node){
- var HEX_RADIX = 16;
- var integer = parseInt(node, HEX_RADIX);
- var valid = lang.isString(node) && node.length == 12 && isFinite(integer);
- return valid;
- };
- dojox.uuid.generateTimeBasedUuid.setNode = function(/*String?*/ node){
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- dojox.uuid.assert((node === null) || this.isValidNode(node));
- this._uniformNode = node;
- };
- dojox.uuid.generateTimeBasedUuid.getNode = function(){
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- return this._uniformNode;
- };
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- dojox.uuid.generateTimeBasedUuid._generator = new function(){
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- this.GREGORIAN_CHANGE_OFFSET_IN_HOURS = 3394248;
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- var _uuidPseudoNodeString = null;
- var _uuidClockSeqString = null;
- var _dateValueOfPreviousUuid = null;
- var _nextIntraMillisecondIncrement = 0;
- var _cachedMillisecondsBetween1582and1970 = null;
- var _cachedHundredNanosecondIntervalsPerMillisecond = null;
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- var HEX_RADIX = 16;
- function _carry(/* array */ arrayA){
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- arrayA[2] += arrayA[3] >>> 16;
- arrayA[3] &= 0xFFFF;
- arrayA[1] += arrayA[2] >>> 16;
- arrayA[2] &= 0xFFFF;
- arrayA[0] += arrayA[1] >>> 16;
- arrayA[1] &= 0xFFFF;
- dojox.uuid.assert((arrayA[0] >>> 16) === 0);
- }
- function _get64bitArrayFromFloat(/* float */ x){
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- var result = new Array(0, 0, 0, 0);
- result[3] = x % 0x10000;
- x -= result[3];
- x /= 0x10000;
- result[2] = x % 0x10000;
- x -= result[2];
- x /= 0x10000;
- result[1] = x % 0x10000;
- x -= result[1];
- x /= 0x10000;
- result[0] = x;
- return result;
- }
- function _addTwo64bitArrays(/* array */ arrayA, /* array */ arrayB){
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- dojox.uuid.assert(lang.isArray(arrayA));
- dojox.uuid.assert(lang.isArray(arrayB));
- dojox.uuid.assert(arrayA.length == 4);
- dojox.uuid.assert(arrayB.length == 4);
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- var result = new Array(0, 0, 0, 0);
- result[3] = arrayA[3] + arrayB[3];
- result[2] = arrayA[2] + arrayB[2];
- result[1] = arrayA[1] + arrayB[1];
- result[0] = arrayA[0] + arrayB[0];
- _carry(result);
- return result;
- }
- function _multiplyTwo64bitArrays(/* array */ arrayA, /* array */ arrayB){
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- dojox.uuid.assert(lang.isArray(arrayA));
- dojox.uuid.assert(lang.isArray(arrayB));
- dojox.uuid.assert(arrayA.length == 4);
- dojox.uuid.assert(arrayB.length == 4);
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- var overflow = false;
- if(arrayA[0] * arrayB[0] !== 0){ overflow = true; }
- if(arrayA[0] * arrayB[1] !== 0){ overflow = true; }
- if(arrayA[0] * arrayB[2] !== 0){ overflow = true; }
- if(arrayA[1] * arrayB[0] !== 0){ overflow = true; }
- if(arrayA[1] * arrayB[1] !== 0){ overflow = true; }
- if(arrayA[2] * arrayB[0] !== 0){ overflow = true; }
- dojox.uuid.assert(!overflow);
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- var result = new Array(0, 0, 0, 0);
- result[0] += arrayA[0] * arrayB[3];
- _carry(result);
- result[0] += arrayA[1] * arrayB[2];
- _carry(result);
- result[0] += arrayA[2] * arrayB[1];
- _carry(result);
- result[0] += arrayA[3] * arrayB[0];
- _carry(result);
- result[1] += arrayA[1] * arrayB[3];
- _carry(result);
- result[1] += arrayA[2] * arrayB[2];
- _carry(result);
- result[1] += arrayA[3] * arrayB[1];
- _carry(result);
- result[2] += arrayA[2] * arrayB[3];
- _carry(result);
- result[2] += arrayA[3] * arrayB[2];
- _carry(result);
- result[3] += arrayA[3] * arrayB[3];
- _carry(result);
- return result;
- }
- function _padWithLeadingZeros(/* string */ string, /* int */ desiredLength){
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- while(string.length < desiredLength){
- string = "0" + string;
- }
- return string;
- }
- function _generateRandomEightCharacterHexString() {
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- var random32bitNumber = Math.floor( (Math.random() % 1) * Math.pow(2, 32) );
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- var eightCharacterString = random32bitNumber.toString(HEX_RADIX);
- while(eightCharacterString.length < 8){
- eightCharacterString = "0" + eightCharacterString;
- }
- return eightCharacterString;
- }
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- this.generateUuidString = function(/*String?*/ node){
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- if(node){
- dojox.uuid.assert(dojox.uuid.generateTimeBasedUuid.isValidNode(node));
- }else{
- if(dojox.uuid.generateTimeBasedUuid._uniformNode){
- node = dojox.uuid.generateTimeBasedUuid._uniformNode;
- }else{
- if(!_uuidPseudoNodeString){
- var pseudoNodeIndicatorBit = 0x8000;
- var random15bitNumber = Math.floor( (Math.random() % 1) * Math.pow(2, 15) );
- var leftmost4HexCharacters = (pseudoNodeIndicatorBit | random15bitNumber).toString(HEX_RADIX);
- _uuidPseudoNodeString = leftmost4HexCharacters + _generateRandomEightCharacterHexString();
- }
- node = _uuidPseudoNodeString;
- }
- }
- if(!_uuidClockSeqString){
- var variantCodeForDCEUuids = 0x8000;
- var random14bitNumber = Math.floor( (Math.random() % 1) * Math.pow(2, 14) );
- _uuidClockSeqString = (variantCodeForDCEUuids | random14bitNumber).toString(HEX_RADIX);
- }
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- var now = new Date();
- var millisecondsSince1970 = now.valueOf();
- var nowArray = _get64bitArrayFromFloat(millisecondsSince1970);
- if(!_cachedMillisecondsBetween1582and1970){
- var arraySecondsPerHour = _get64bitArrayFromFloat(60 * 60);
- var arrayHoursBetween1582and1970 = _get64bitArrayFromFloat(dojox.uuid.generateTimeBasedUuid._generator.GREGORIAN_CHANGE_OFFSET_IN_HOURS);
- var arraySecondsBetween1582and1970 = _multiplyTwo64bitArrays(arrayHoursBetween1582and1970, arraySecondsPerHour);
- var arrayMillisecondsPerSecond = _get64bitArrayFromFloat(1000);
- _cachedMillisecondsBetween1582and1970 = _multiplyTwo64bitArrays(arraySecondsBetween1582and1970, arrayMillisecondsPerSecond);
- _cachedHundredNanosecondIntervalsPerMillisecond = _get64bitArrayFromFloat(10000);
- }
- var arrayMillisecondsSince1970 = nowArray;
- var arrayMillisecondsSince1582 = _addTwo64bitArrays(_cachedMillisecondsBetween1582and1970, arrayMillisecondsSince1970);
- var arrayHundredNanosecondIntervalsSince1582 = _multiplyTwo64bitArrays(arrayMillisecondsSince1582, _cachedHundredNanosecondIntervalsPerMillisecond);
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- if(now.valueOf() == _dateValueOfPreviousUuid){
- arrayHundredNanosecondIntervalsSince1582[3] += _nextIntraMillisecondIncrement;
- _carry(arrayHundredNanosecondIntervalsSince1582);
- _nextIntraMillisecondIncrement += 1;
- if (_nextIntraMillisecondIncrement == 10000) {
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- while (now.valueOf() == _dateValueOfPreviousUuid) {
- now = new Date();
- }
- }
- }else{
- _dateValueOfPreviousUuid = now.valueOf();
- _nextIntraMillisecondIncrement = 1;
- }
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- var hexTimeLowLeftHalf = arrayHundredNanosecondIntervalsSince1582[2].toString(HEX_RADIX);
- var hexTimeLowRightHalf = arrayHundredNanosecondIntervalsSince1582[3].toString(HEX_RADIX);
- var hexTimeLow = _padWithLeadingZeros(hexTimeLowLeftHalf, 4) + _padWithLeadingZeros(hexTimeLowRightHalf, 4);
- var hexTimeMid = arrayHundredNanosecondIntervalsSince1582[1].toString(HEX_RADIX);
- hexTimeMid = _padWithLeadingZeros(hexTimeMid, 4);
- var hexTimeHigh = arrayHundredNanosecondIntervalsSince1582[0].toString(HEX_RADIX);
- hexTimeHigh = _padWithLeadingZeros(hexTimeHigh, 3);
- var hyphen = "-";
- var versionCodeForTimeBasedUuids = "1";
- var resultUuid = hexTimeLow + hyphen + hexTimeMid + hyphen +
- versionCodeForTimeBasedUuids + hexTimeHigh + hyphen +
- _uuidClockSeqString + hyphen + node;
- resultUuid = resultUuid.toLowerCase();
- return resultUuid;
- }
- }();
- return dojox.uuid.generateTimeBasedUuid;
- });
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