| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojox.data.CsvStore"]){ |
| dojo._hasResource["dojox.data.CsvStore"]=true; |
| dojo.provide("dojox.data.CsvStore"); |
| dojo.require("dojo.data.util.filter"); |
| dojo.require("dojo.data.util.simpleFetch"); |
| dojo.declare("dojox.data.CsvStore",null,{constructor:function(_1){ |
| this._attributes=[]; |
| this._attributeIndexes={}; |
| this._dataArray=[]; |
| this._arrayOfAllItems=[]; |
| this._loadFinished=false; |
| if(_1.url){ |
| this.url=_1.url; |
| } |
| this._csvData=_1.data; |
| if(_1.label){ |
| this.label=_1.label; |
| }else{ |
| if(this.label===""){ |
| this.label=undefined; |
| } |
| } |
| this._storeProp="_csvStore"; |
| this._idProp="_csvId"; |
| this._features={"dojo.data.api.Read":true,"dojo.data.api.Identity":true}; |
| this._loadInProgress=false; |
| this._queuedFetches=[]; |
| this.identifier=_1.identifier; |
| if(this.identifier===""){ |
| delete this.identifier; |
| }else{ |
| this._idMap={}; |
| } |
| },url:"",label:"",identifier:"",_assertIsItem:function(_2){ |
| if(!this.isItem(_2)){ |
| throw new Error(this.declaredClass+": a function was passed an item argument that was not an item"); |
| } |
| },_assertIsAttribute:function(_3){ |
| if(!dojo.isString(_3)){ |
| throw new Error(this.declaredClass+": a function was passed an attribute argument that was not an attribute object nor an attribute name string"); |
| } |
| },_getIndex:function(_4){ |
| var _5=this.getIdentity(_4); |
| if(this.identifier){ |
| _5=this._idMap[_5]; |
| } |
| return _5; |
| },getValue:function(_6,_7,_8){ |
| this._assertIsItem(_6); |
| this._assertIsAttribute(_7); |
| var _9=_8; |
| if(this.hasAttribute(_6,_7)){ |
| var _a=this._dataArray[this._getIndex(_6)]; |
| _9=_a[this._attributeIndexes[_7]]; |
| } |
| return _9; |
| },getValues:function(_b,_c){ |
| var _d=this.getValue(_b,_c); |
| return (_d?[_d]:[]); |
| },getAttributes:function(_e){ |
| this._assertIsItem(_e); |
| var _f=[]; |
| var _10=this._dataArray[this._getIndex(_e)]; |
| for(var i=0;i<_10.length;i++){ |
| if(_10[i]!==""){ |
| _f.push(this._attributes[i]); |
| } |
| } |
| return _f; |
| },hasAttribute:function(_12,_13){ |
| this._assertIsItem(_12); |
| this._assertIsAttribute(_13); |
| var _14=this._attributeIndexes[_13]; |
| var _15=this._dataArray[this._getIndex(_12)]; |
| return (typeof _14!=="undefined"&&_14<_15.length&&_15[_14]!==""); |
| },containsValue:function(_16,_17,_18){ |
| var _19=undefined; |
| if(typeof _18==="string"){ |
| _19=dojo.data.util.filter.patternToRegExp(_18,false); |
| } |
| return this._containsValue(_16,_17,_18,_19); |
| },_containsValue:function(_1a,_1b,_1c,_1d){ |
| var _1e=this.getValues(_1a,_1b); |
| for(var i=0;i<_1e.length;++i){ |
| var _20=_1e[i]; |
| if(typeof _20==="string"&&_1d){ |
| return (_20.match(_1d)!==null); |
| }else{ |
| if(_1c===_20){ |
| return true; |
| } |
| } |
| } |
| return false; |
| },isItem:function(_21){ |
| if(_21&&_21[this._storeProp]===this){ |
| var _22=_21[this._idProp]; |
| if(this.identifier){ |
| var _23=this._dataArray[this._idMap[_22]]; |
| if(_23){ |
| return true; |
| } |
| }else{ |
| if(_22>=0&&_22<this._dataArray.length){ |
| return true; |
| } |
| } |
| } |
| return false; |
| },isItemLoaded:function(_24){ |
| return this.isItem(_24); |
| },loadItem:function(_25){ |
| },getFeatures:function(){ |
| return this._features; |
| },getLabel:function(_26){ |
| if(this.label&&this.isItem(_26)){ |
| return this.getValue(_26,this.label); |
| } |
| return undefined; |
| },getLabelAttributes:function(_27){ |
| if(this.label){ |
| return [this.label]; |
| } |
| return null; |
| },_fetchItems:function(_28,_29,_2a){ |
| var _2b=this; |
| var _2c=function(_2d,_2e){ |
| var _2f=null; |
| if(_2d.query){ |
| var key,_31; |
| _2f=[]; |
| var _32=_2d.queryOptions?_2d.queryOptions.ignoreCase:false; |
| var _33={}; |
| for(key in _2d.query){ |
| _31=_2d.query[key]; |
| if(typeof _31==="string"){ |
| _33[key]=dojo.data.util.filter.patternToRegExp(_31,_32); |
| } |
| } |
| for(var i=0;i<_2e.length;++i){ |
| var _35=true; |
| var _36=_2e[i]; |
| for(key in _2d.query){ |
| _31=_2d.query[key]; |
| if(!_2b._containsValue(_36,key,_31,_33[key])){ |
| _35=false; |
| } |
| } |
| if(_35){ |
| _2f.push(_36); |
| } |
| } |
| }else{ |
| if(_2e.length>0){ |
| _2f=_2e.slice(0,_2e.length); |
| } |
| } |
| _29(_2f,_2d); |
| }; |
| if(this._loadFinished){ |
| _2c(_28,this._arrayOfAllItems); |
| }else{ |
| if(this.url!==""){ |
| if(this._loadInProgress){ |
| this._queuedFetches.push({args:_28,filter:_2c}); |
| }else{ |
| this._loadInProgress=true; |
| var _37={url:_2b.url,handleAs:"text"}; |
| var _38=dojo.xhrGet(_37); |
| _38.addCallback(function(_39){ |
| try{ |
| _2b._processData(_39); |
| _2c(_28,_2b._arrayOfAllItems); |
| _2b._handleQueuedFetches(); |
| } |
| catch(e){ |
| _2a(e,_28); |
| } |
| }); |
| _38.addErrback(function(_3a){ |
| _2b._loadInProgress=false; |
| if(_2a){ |
| _2a(_3a,_28); |
| }else{ |
| throw _3a; |
| } |
| }); |
| } |
| }else{ |
| if(this._csvData){ |
| try{ |
| this._processData(this._csvData); |
| this._csvData=null; |
| _2c(_28,this._arrayOfAllItems); |
| } |
| catch(e){ |
| _2a(e,_28); |
| } |
| }else{ |
| var _3b=new Error(this.declaredClass+": No CSV source data was provided as either URL or String data input."); |
| if(_2a){ |
| _2a(_3b,_28); |
| }else{ |
| throw _3b; |
| } |
| } |
| } |
| } |
| },close:function(_3c){ |
| },_getArrayOfArraysFromCsvFileContents:function(_3d){ |
| if(dojo.isString(_3d)){ |
| var _3e=new RegExp("\r\n|\n|\r"); |
| var _3f=new RegExp("^\\s+","g"); |
| var _40=new RegExp("\\s+$","g"); |
| var _41=new RegExp("\"\"","g"); |
| var _42=[]; |
| var i; |
| var _44=this._splitLines(_3d); |
| for(i=0;i<_44.length;++i){ |
| var _45=_44[i]; |
| if(_45.length>0){ |
| var _46=_45.split(","); |
| var j=0; |
| while(j<_46.length){ |
| var _48=_46[j]; |
| var _49=_48.replace(_3f,""); |
| var _4a=_49.replace(_40,""); |
| var _4b=_4a.charAt(0); |
| var _4c=_4a.charAt(_4a.length-1); |
| var _4d=_4a.charAt(_4a.length-2); |
| var _4e=_4a.charAt(_4a.length-3); |
| if(_4a.length===2&&_4a=="\"\""){ |
| _46[j]=""; |
| }else{ |
| if((_4b=="\"")&&((_4c!="\"")||((_4c=="\"")&&(_4d=="\"")&&(_4e!="\"")))){ |
| if(j+1===_46.length){ |
| return null; |
| } |
| var _4f=_46[j+1]; |
| _46[j]=_49+","+_4f; |
| _46.splice(j+1,1); |
| }else{ |
| if((_4b=="\"")&&(_4c=="\"")){ |
| _4a=_4a.slice(1,(_4a.length-1)); |
| _4a=_4a.replace(_41,"\""); |
| } |
| _46[j]=_4a; |
| j+=1; |
| } |
| } |
| } |
| _42.push(_46); |
| } |
| } |
| this._attributes=_42.shift(); |
| for(i=0;i<this._attributes.length;i++){ |
| this._attributeIndexes[this._attributes[i]]=i; |
| } |
| this._dataArray=_42; |
| } |
| },_splitLines:function(_50){ |
| var _51=[]; |
| var i; |
| var _53=""; |
| var _54=false; |
| for(i=0;i<_50.length;i++){ |
| var c=_50.charAt(i); |
| switch(c){ |
| case "\"": |
| _54=!_54; |
| _53+=c; |
| break; |
| case "\r": |
| if(_54){ |
| _53+=c; |
| }else{ |
| _51.push(_53); |
| _53=""; |
| if(i<(_50.length-1)&&_50.charAt(i+1)=="\n"){ |
| i++; |
| } |
| } |
| break; |
| case "\n": |
| if(_54){ |
| _53+=c; |
| }else{ |
| _51.push(_53); |
| _53=""; |
| } |
| break; |
| default: |
| _53+=c; |
| } |
| } |
| if(_53!==""){ |
| _51.push(_53); |
| } |
| return _51; |
| },_processData:function(_56){ |
| this._getArrayOfArraysFromCsvFileContents(_56); |
| this._arrayOfAllItems=[]; |
| if(this.identifier){ |
| if(this._attributeIndexes[this.identifier]===undefined){ |
| throw new Error(this.declaredClass+": Identity specified is not a column header in the data set."); |
| } |
| } |
| for(var i=0;i<this._dataArray.length;i++){ |
| var id=i; |
| if(this.identifier){ |
| var _59=this._dataArray[i]; |
| id=_59[this._attributeIndexes[this.identifier]]; |
| this._idMap[id]=i; |
| } |
| this._arrayOfAllItems.push(this._createItemFromIdentity(id)); |
| } |
| this._loadFinished=true; |
| this._loadInProgress=false; |
| },_createItemFromIdentity:function(_5a){ |
| var _5b={}; |
| _5b[this._storeProp]=this; |
| _5b[this._idProp]=_5a; |
| return _5b; |
| },getIdentity:function(_5c){ |
| if(this.isItem(_5c)){ |
| return _5c[this._idProp]; |
| } |
| return null; |
| },fetchItemByIdentity:function(_5d){ |
| var _5e; |
| var _5f=_5d.scope?_5d.scope:dojo.global; |
| if(!this._loadFinished){ |
| var _60=this; |
| if(this.url!==""){ |
| if(this._loadInProgress){ |
| this._queuedFetches.push({args:_5d}); |
| }else{ |
| this._loadInProgress=true; |
| var _61={url:_60.url,handleAs:"text"}; |
| var _62=dojo.xhrGet(_61); |
| _62.addCallback(function(_63){ |
| try{ |
| _60._processData(_63); |
| var _64=_60._createItemFromIdentity(_5d.identity); |
| if(!_60.isItem(_64)){ |
| _64=null; |
| } |
| if(_5d.onItem){ |
| _5d.onItem.call(_5f,_64); |
| } |
| _60._handleQueuedFetches(); |
| } |
| catch(error){ |
| if(_5d.onError){ |
| _5d.onError.call(_5f,error); |
| } |
| } |
| }); |
| _62.addErrback(function(_65){ |
| this._loadInProgress=false; |
| if(_5d.onError){ |
| _5d.onError.call(_5f,_65); |
| } |
| }); |
| } |
| }else{ |
| if(this._csvData){ |
| try{ |
| _60._processData(_60._csvData); |
| _60._csvData=null; |
| _5e=_60._createItemFromIdentity(_5d.identity); |
| if(!_60.isItem(_5e)){ |
| _5e=null; |
| } |
| if(_5d.onItem){ |
| _5d.onItem.call(_5f,_5e); |
| } |
| } |
| catch(e){ |
| if(_5d.onError){ |
| _5d.onError.call(_5f,e); |
| } |
| } |
| } |
| } |
| }else{ |
| _5e=this._createItemFromIdentity(_5d.identity); |
| if(!this.isItem(_5e)){ |
| _5e=null; |
| } |
| if(_5d.onItem){ |
| _5d.onItem.call(_5f,_5e); |
| } |
| } |
| },getIdentityAttributes:function(_66){ |
| if(this.identifier){ |
| return [this.identifier]; |
| }else{ |
| return null; |
| } |
| },_handleQueuedFetches:function(){ |
| if(this._queuedFetches.length>0){ |
| for(var i=0;i<this._queuedFetches.length;i++){ |
| var _68=this._queuedFetches[i]; |
| var _69=_68.filter; |
| var _6a=_68.args; |
| if(_69){ |
| _69(_6a,this._arrayOfAllItems); |
| }else{ |
| this.fetchItemByIdentity(_68.args); |
| } |
| } |
| this._queuedFetches=[]; |
| } |
| }}); |
| dojo.extend(dojox.data.CsvStore,dojo.data.util.simpleFetch); |
| } |
