Class: Twb::DataSource
- Inherits:
-
Object
- Object
- Twb::DataSource
- Includes:
- TabTool
- Defined in:
- lib/twb/datasource.rb
Constant Summary collapse
- @@hasher =
Digest::SHA256.new
- @@connGNodeParamsJSON =
%q( { "csv" : { "label" : ["filename"], "id" : ["directory","filename"], "type" : "CSV" }, "excel" : { "label" : ["filename"], "id" : ["directory","filename"], "type" : "Excel" }, "dataengine" : { "label" : ["dbname" ], "id" : ["directory","filename"], "type" : "TDE" }, "msaccess" : { "label" : ["filename"], "id" : ["directory","filename"], "type" : "MS Access" }, "oracle" : { "label" : ["server" ], "id" : [ "server" ], "type" : "Oracle" }, "postgres" : { "label" : ["server" ], "id" : [ "server" ], "type" : "PostgreSQL" }, "textscan" : { "label" : ["filename"], "id" : ["directory","filename"], "type" : "CSV / TSV" }, "excel-direct" : { "label" : ["filename"], "id" : [ "filename"], "type" : "Excel" }, "salesforce" : { "label" : ["server" ], "id" : [ "server" ], "type" : "Salesforce" } } )
- @@cgNodeParams =
JSON.parse @@connGNodeParamsJSON
Instance Attribute Summary collapse
-
#aliases ⇒ Object
readonly
Returns the value of attribute aliases.
-
#allFields ⇒ Object
readonly
Returns the value of attribute allFields.
-
#attributes ⇒ Object
readonly
Returns the value of attribute attributes.
-
#calculatedField(name) ⇒ Object
readonly
Returns the value of attribute calculatedField.
-
#calculatedFieldNames ⇒ Object
readonly
Returns the value of attribute calculatedFieldNames.
-
#calculatedFields ⇒ Object
readonly
Returns the value of attribute calculatedFields.
-
#calculatedFieldsMap ⇒ Object
readonly
Returns the value of attribute calculatedFieldsMap.
-
#caption ⇒ Object
readonly
Returns the value of attribute caption.
-
#columnFields ⇒ Object
readonly
Returns the value of attribute columnFields.
-
#connAttributes ⇒ Object
readonly
Returns the value of attribute connAttributes.
-
#connection ⇒ Object
readonly
Returns the value of attribute connection.
-
#connections ⇒ Object
readonly
Returns the value of attribute connections.
-
#connHash ⇒ Object
readonly
Returns the value of attribute connHash.
-
#dbFields ⇒ Object
readonly
Returns the value of attribute dbFields.
-
#dsclass ⇒ Object
readonly
Returns the value of attribute dsclass.
-
#fieldUINames ⇒ Object
readonly
Returns the value of attribute fieldUINames.
-
#filters ⇒ Object
readonly
Returns the value of attribute filters.
-
#groups ⇒ Object
readonly
Returns the value of attribute groups.
-
#hasField ⇒ Object
readonly
Returns the value of attribute hasField.
-
#isExtract ⇒ Object
readonly
Returns the value of attribute isExtract.
-
#isPublished ⇒ Object
readonly
Returns the value of attribute isPublished.
-
#joinPairs ⇒ Object
readonly
Returns the value of attribute joinPairs.
-
#localField ⇒ Object
readonly
Returns the value of attribute localField.
-
#localFieldNames ⇒ Object
readonly
Returns the value of attribute localFieldNames.
-
#localFields ⇒ Object
readonly
Returns the value of attribute localFields.
-
#mappedFields ⇒ Object
readonly
Returns the value of attribute mappedFields.
-
#metadataFields ⇒ Object
readonly
Returns the value of attribute metadataFields.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#node ⇒ Object
readonly
Returns the value of attribute node.
-
#tableFieldsMap ⇒ Object
readonly
Returns the value of attribute tableFieldsMap.
-
#tables ⇒ Object
readonly
Returns the value of attribute tables.
-
#uiname ⇒ Object
readonly
Returns the value of attribute uiname.
-
#uuid ⇒ Object
readonly
Returns the value of attribute uuid.
-
#workbook ⇒ Object
readonly
Returns the value of attribute workbook.
Attributes included from TabTool
#alerts, #docDir, #docfiles, #funcdoc, #licensed, #logfilename, #logger, #loglevel, #metrics, #properties, #ttdocdir, #type
Instance Method Summary collapse
- #columnField(fieldName) ⇒ Object
- #columnFieldsMap ⇒ Object
- #dbFieldsMap ⇒ Object
- #deAlias(fieldName, fAlias) ⇒ Object
- #field(fieldName) ⇒ Object
- #fieldAlias(fieldName, value) ⇒ Object
- #fieldAliases(fieldName) ⇒ Object
- #fieldHasAliases(fieldName) ⇒ Object
- #fieldTable(fieldName) ⇒ Object
- #fieldUIName(fieldName) ⇒ Object
- #has_field?(fieldName) ⇒ Boolean
- #id ⇒ Object
-
#initialize(dataSourceNode, workbook) ⇒ DataSource
constructor
A new instance of DataSource.
- #joinTree ⇒ Object
- #loadAliases ⇒ Object
- #loadAllFields ⇒ Object
- #loadAttributes(node) ⇒ Object
- #loadCalculatedFields ⇒ Object
- #loadColumnFields ⇒ Object
- #loadIsPublished ⇒ Object
- #loadJoinPairs ⇒ Object
- #loadJoinTree ⇒ Object
- #loadLocalFields ⇒ Object
- #loadMetadataFields ⇒ Object
-
#loadTableFields ⇒ Object
fields are unique in the data source by UI name.
- #loadTables ⇒ Object
- #mappedFieldsMap ⇒ Object
- #Parameters? ⇒ Boolean
- #processConnection(path) ⇒ Object
- #processConnections ⇒ Object
- #pullTable(xml) ⇒ Object
-
#setConnectionHash ⇒ Object
Notes: - TODO: need to determine which, if any, of the connection attributes should be included in the hash in order to identify it unambiguously - without local values that obscure the data source’s ‘real’ identity - attributes with value ” don’t contribute to the hash.
- #tableauVersion ⇒ Object
- #tableFields ⇒ Object
- #updateTime ⇒ Object
Methods included from TabTool
#addDocFile, #alert, #closeDocFiles, #config, #docFile, #docFileMaxNameLen, #docfilesdoc, #docfilesdocto_s, #emit, #emitCSV, #finis, #hasConfig, #init, #initCSV, #initDocDir, #initLogger, #license=, #licensed?, #loadConfig
Constructor Details
#initialize(dataSourceNode, workbook) ⇒ DataSource
Returns a new instance of DataSource.
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# File 'lib/twb/datasource.rb', line 65 def initialize dataSourceNode, workbook @node = dataSourceNode @workbook = workbook @name = @node.attr('name') @caption = @node.attr('caption') @uiname = @caption.nil? ? @name : @caption # puts "DATASOURCE: #{@uiname}" # processConnection # processFilters loadTableFields loadFieldUINames return self end |
Instance Attribute Details
#aliases ⇒ Object (readonly)
Returns the value of attribute aliases.
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# File 'lib/twb/datasource.rb', line 58 def aliases @aliases end |
#allFields ⇒ Object (readonly)
Returns the value of attribute allFields.
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# File 'lib/twb/datasource.rb', line 60 def allFields @allFields end |
#attributes ⇒ Object (readonly)
Returns the value of attribute attributes.
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# File 'lib/twb/datasource.rb', line 45 def attributes @attributes end |
#calculatedField(name) ⇒ Object (readonly)
Returns the value of attribute calculatedField.
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# File 'lib/twb/datasource.rb', line 59 def calculatedField @calculatedField end |
#calculatedFieldNames ⇒ Object (readonly)
Returns the value of attribute calculatedFieldNames.
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# File 'lib/twb/datasource.rb', line 59 def calculatedFieldNames @calculatedFieldNames end |
#calculatedFields ⇒ Object (readonly)
Returns the value of attribute calculatedFields.
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# File 'lib/twb/datasource.rb', line 59 def calculatedFields @calculatedFields end |
#calculatedFieldsMap ⇒ Object (readonly)
Returns the value of attribute calculatedFieldsMap.
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# File 'lib/twb/datasource.rb', line 59 def calculatedFieldsMap @calculatedFieldsMap end |
#caption ⇒ Object (readonly)
Returns the value of attribute caption.
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# File 'lib/twb/datasource.rb', line 44 def @caption end |
#columnFields ⇒ Object (readonly)
Returns the value of attribute columnFields.
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# File 'lib/twb/datasource.rb', line 52 def columnFields @columnFields end |
#connAttributes ⇒ Object (readonly)
Returns the value of attribute connAttributes.
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# File 'lib/twb/datasource.rb', line 47 def connAttributes @connAttributes end |
#connection ⇒ Object (readonly)
Returns the value of attribute connection.
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# File 'lib/twb/datasource.rb', line 47 def connection @connection end |
#connections ⇒ Object (readonly)
Returns the value of attribute connections.
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# File 'lib/twb/datasource.rb', line 47 def connections @connections end |
#connHash ⇒ Object (readonly)
Returns the value of attribute connHash.
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# File 'lib/twb/datasource.rb', line 47 def connHash @connHash end |
#dbFields ⇒ Object (readonly)
Returns the value of attribute dbFields.
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# File 'lib/twb/datasource.rb', line 54 def dbFields @dbFields end |
#dsclass ⇒ Object (readonly)
Returns the value of attribute dsclass.
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# File 'lib/twb/datasource.rb', line 46 def dsclass @dsclass end |
#fieldUINames ⇒ Object (readonly)
Returns the value of attribute fieldUINames.
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# File 'lib/twb/datasource.rb', line 57 def fieldUINames @fieldUINames end |
#filters ⇒ Object (readonly)
Returns the value of attribute filters.
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# File 'lib/twb/datasource.rb', line 62 def filters @filters end |
#groups ⇒ Object (readonly)
Returns the value of attribute groups.
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# File 'lib/twb/datasource.rb', line 61 def groups @groups end |
#hasField ⇒ Object (readonly)
Returns the value of attribute hasField.
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# File 'lib/twb/datasource.rb', line 51 def hasField @hasField end |
#isExtract ⇒ Object (readonly)
Returns the value of attribute isExtract.
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# File 'lib/twb/datasource.rb', line 46 def isExtract @isExtract end |
#isPublished ⇒ Object (readonly)
Returns the value of attribute isPublished.
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# File 'lib/twb/datasource.rb', line 48 def isPublished @isPublished end |
#joinPairs ⇒ Object (readonly)
Returns the value of attribute joinPairs.
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# File 'lib/twb/datasource.rb', line 50 def joinPairs @joinPairs end |
#localField ⇒ Object (readonly)
Returns the value of attribute localField.
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# File 'lib/twb/datasource.rb', line 51 def localField @localField end |
#localFieldNames ⇒ Object (readonly)
Returns the value of attribute localFieldNames.
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# File 'lib/twb/datasource.rb', line 51 def localFieldNames @localFieldNames end |
#localFields ⇒ Object (readonly)
Returns the value of attribute localFields.
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# File 'lib/twb/datasource.rb', line 51 def localFields @localFields end |
#mappedFields ⇒ Object (readonly)
Returns the value of attribute mappedFields.
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# File 'lib/twb/datasource.rb', line 55 def mappedFields @mappedFields end |
#metadataFields ⇒ Object (readonly)
Returns the value of attribute metadataFields.
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# File 'lib/twb/datasource.rb', line 53 def @metadataFields end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/twb/datasource.rb', line 44 def name @name end |
#node ⇒ Object (readonly)
Returns the value of attribute node.
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# File 'lib/twb/datasource.rb', line 63 def node @node end |
#tableFieldsMap ⇒ Object (readonly)
Returns the value of attribute tableFieldsMap.
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# File 'lib/twb/datasource.rb', line 56 def tableFieldsMap @tableFieldsMap end |
#tables ⇒ Object (readonly)
Returns the value of attribute tables.
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# File 'lib/twb/datasource.rb', line 50 def tables @tables end |
#uiname ⇒ Object (readonly)
Returns the value of attribute uiname.
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# File 'lib/twb/datasource.rb', line 44 def uiname @uiname end |
#uuid ⇒ Object (readonly)
Returns the value of attribute uuid.
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# File 'lib/twb/datasource.rb', line 49 def uuid @uuid end |
#workbook ⇒ Object (readonly)
Returns the value of attribute workbook.
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# File 'lib/twb/datasource.rb', line 43 def workbook @workbook end |
Instance Method Details
#columnField(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 238 def columnField fieldName loadColumnFields if @columnFieldsMap.nil? @columnFieldsMap[ fieldName ] end |
#columnFieldsMap ⇒ Object
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# File 'lib/twb/datasource.rb', line 248 def columnFieldsMap loadColumnFields if @columnFieldsMap.nil? return @columnFieldsMap end |
#dbFieldsMap ⇒ Object
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# File 'lib/twb/datasource.rb', line 398 def dbFieldsMap @tableFieldsMap end |
#deAlias(fieldName, fAlias) ⇒ Object
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# File 'lib/twb/datasource.rb', line 324 def deAlias fieldName, fAlias fldAliases = aliases[fieldName] return fAlias if fldAliases.nil? dbFieldValue = fldAliases.key(fAlias) dbFieldValue.nil? ? fAlias : dbFieldValue end |
#field(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 459 def field fieldName dbFieldsMap[fieldName] end |
#fieldAlias(fieldName, value) ⇒ Object
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# File 'lib/twb/datasource.rb', line 316 def fieldAlias fieldName, value emit "fieldAlias: #{fieldName.class} -> #{value.class}" loadAliases if @aliases.nil? return value if @aliases.nil? || @aliases[fieldName].nil? # unless fieldHasAliases(fieldName) fldAlias = @aliases[fieldName][value] fldAlias.nil? ? value : fldAlias end |
#fieldAliases(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 312 def fieldAliases fieldName aliases[fieldName] end |
#fieldHasAliases(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 308 def fieldHasAliases fieldName !aliases[fieldName].nil? end |
#fieldTable(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 463 def fieldTable fieldName loadTableFields if @tableFieldsMap.nil? dbField = @tableFieldsMap[fieldName] return dbField.nil? ? nil : dbField.dbtable end |
#fieldUIName(fieldName) ⇒ Object
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# File 'lib/twb/datasource.rb', line 384 def fieldUIName fieldName loadFieldUINames if @fieldUINames.nil? @fieldUINames[fieldName].nil? ? fieldName : @fieldUINames[fieldName] end |
#has_field?(fieldName) ⇒ Boolean
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# File 'lib/twb/datasource.rb', line 455 def has_field? fieldName dbFieldsMap.has_key? fieldName end |
#id ⇒ Object
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# File 'lib/twb/datasource.rb', line 97 def id @id ||= @id = @name end |
#joinTree ⇒ Object
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# File 'lib/twb/datasource.rb', line 210 def joinTree @joinTree ||= loadJoinTree end |
#loadAliases ⇒ Object
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# File 'lib/twb/datasource.rb', line 270 def loadAliases @aliases = {} # puts $node.xpath('.//column/aliases/..').length cnt = 0 @node.xpath('./column//aliases/..').each do |anode| # puts "anode:: #{anode}" # puts " path:: #{anode.path}" aliasMap = {} nameTech = anode.attribute('name').text.gsub(/^\[|\]$/,'') name = fieldUIName nameTech if ':Measure Names'.eql? name # puts "processing Measure Names" anode.xpath('.//alias').each do |vnode| keyCode = vnode.attribute('key').text.gsub(/^[#"%]|[#"%]$/,'') key = Twb::CodedField.new(keyCode).name field = fieldUIName key alia = vnode.attribute('value').text # puts " keyCode:: #{key}" # puts " key :: #{key}" # puts " field :: #{field}" # puts " alias :: #{alia}" aliasMap[field] = alia end else anode.xpath('.//alias').each do |vnode| key = vnode.attribute('key').text.gsub(/^[#"]|[#"]$/,'') alia = vnode.attribute('value').text # puts " key :: #{key}" # puts "alias:: #{alia}" aliasMap[key] = alia end end @aliases[name] = aliasMap end emit "FIELD ALIASES: @aliases" return @aliases end |
#loadAllFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 449 def loadAllFields @allFields = SortedSet.new @allFields << dbFields @allFields << calculatedFieldNames end |
#loadAttributes(node) ⇒ Object
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# File 'lib/twb/datasource.rb', line 87 def loadAttributes node attributes = {} unless node.nil? node.attributes.each do |k,v| attributes[k] = v.text end end return attributes end |
#loadCalculatedFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 435 def loadCalculatedFields @calculatedFieldsMap = {} cfnodes = @node.xpath("./column[calculation]") cfnodes.each do |node| calcField = Twb::CalculatedField.new node, self @calculatedFieldsMap[calcField.uiname] = calcField end return @calculatedFieldsMap end |
#loadColumnFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 253 def loadColumnFields @columnFields = Set.new @columnFieldsMap = {} nodes = @node.xpath('.//column') nodes.each do |n| field = Twb::ColumnField.new n, self @columnFields << field @columnFieldsMap[field.uiname] = field @columnFieldsMap[field.name] = field end return @columnFields end |
#loadIsPublished ⇒ Object
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# File 'lib/twb/datasource.rb', line 176 def loadIsPublished @isPublished = !node.at_xpath('./repository-location').nil? end |
#loadJoinPairs ⇒ Object
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# File 'lib/twb/datasource.rb', line 199 def loadJoinPairs @joinPairs = Set.new mainJoin = @node.xpath("./connection/relation[@type='join']") clauses = @node.xpath(".//relation[@type='join']/clause") clauses.each do |clause| leafs = clause.xpath('.//expression[not(node())]') @joinPairs << [ pullTable(leafs[0]) , pullTable(leafs[1]) ] end return @joinPairs end |
#loadJoinTree ⇒ Object
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# File 'lib/twb/datasource.rb', line 214 def loadJoinTree loadJoinPairs if @joinPairs.nil? # puts "LJT::#{@uiname}::joinPairs:: #{@joinPairs.inspect}" # @joinPairs.each { |jp| # puts "JP::#{jp}" } @joinTree = JoinTree.new(@name) @joinPairs.each do |from,to| # puts "from:#{from} -> to:#{to}" tableFrom = JoinTable.new(from) tableTo = JoinTable.new(to) @joinTree.add(tableFrom, tableTo) end # puts '---' return @joinTree end |
#loadLocalFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 335 def loadLocalFields @localFields = Set.new unless @connection.nil? # Parameters has no connection node, & no local fields connClass = @node.at_xpath('./connection').attribute('class').text fxpath = case connClass when 'dataengine' then './column' when 'sqlserver' then './column' else './connection/relation/columns/column' end nodes = @node.xpath(fxpath) nodes.each do |node| field = Twb::LocalField.new(node) @localFields << field end end return @localFields end |
#loadMetadataFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 357 def loadMetadataFields @metadataFields = Set.new unless @connection.nil? # Parameters has no connection node, & no metadata fields # nodes = @node.xpath(".//metadata-record[@class='column']") # # note: there are other nodes "<metadata-record class='capability'>" whose nature is unclear # # these nodes have no value for their <name node, so are not loaded nodes = @node.xpath("./connection//metadata-record[@class='column']") nodes.each do |node| field = Twb::MetadataField.new(node) field.source = :db @metadataFields << field end nodes = @node.xpath('./extract//metadata-record') nodes.each do |node| field = Twb::MetadataField.new(node) field.source = :extract @metadataFields << field end end return @metadataFields end |
#loadTableFields ⇒ Object
fields are unique in the data source by UI name
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# File 'lib/twb/datasource.rb', line 470 def loadTableFields # puts "DATA SOURCE FIELD TABLE LOAD" @tableFieldsMap = {} fieldNodes = @node.xpath('./connection/cols/map') fieldNodes.each do |fn| dbField = Twb::DbField.new(@uiname, fn, :map) @tableFieldsMap[dbField.uiname] = dbField end relTableNodes = @node.xpath('.//relation[@table]') relTableNodes.each do |relNode| table = relNode.attribute('name').text cols = relNode.xpath('./columns/column') cols.each do |col| dbField = Twb::DbField.new(@uiname, col, :tableColumn, table) fldName = col.attribute('name') @tableFieldsMap[dbField.uiname] = dbField end end end |
#loadTables ⇒ Object
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# File 'lib/twb/datasource.rb', line 184 def loadTables @tables = {} connections.each do |conn| nodes = conn.xpath(".//relation[@type='table']") nodes.each do |node| @tables[node.attr('name')] = node.attr('table') end end return @tables end |
#mappedFieldsMap ⇒ Object
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# File 'lib/twb/datasource.rb', line 406 def mappedFieldsMap loadTableFields if @tableFieldsMap.nil? return @tableFieldsMap end |
#Parameters? ⇒ Boolean
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# File 'lib/twb/datasource.rb', line 234 def Parameters? 'Parameters'.eql? @name end |
#processConnection(path) ⇒ Object
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# File 'lib/twb/datasource.rb', line 120 def processConnection path conns = @node.xpath(path) conns.each do |connNode| @connections << connNode # connClass = @dsclass # cpath = connNode.path # connPath = cpath.gsub(/\[[0-9]+\]/,'') # connPNum = /(\d+)/.match(cpath) # # puts cpath, connPath # # puts "CPATH: #{cpath}" # conn.attributes.each do |name,value| # # puts "\n\t\t - %-15s -> %-s" % [name, value] # $csvFile << [ $recCount += 1, # $twbName, $dir, $build, $version, # $dsName, $dstype, $dsuiname, connClass, # connPath, connPNum, # name, value.value # ] # end end end |
#processConnections ⇒ Object
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# File 'lib/twb/datasource.rb', line 113 def processConnections @connections = Array.new processConnection './/connection' processConnection './/named-connection' return @connections end |
#pullTable(xml) ⇒ Object
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# File 'lib/twb/datasource.rb', line 229 def pullTable xml code =xml.attribute('op').text table = code.split('].[')[0][1..-1] end |
#setConnectionHash ⇒ Object
Notes:
- TODO: need to determine which, if any, of the connection attributes should be
included in the hash in order to identify it unambiguously - without
local values that obscure the data source's 'real' identity
- attributes with value '' don't contribute to the hash
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# File 'lib/twb/datasource.rb', line 158 def setConnectionHash dsAttributes = @node.xpath('./connection/@*') dsConnStr = '' dsAttributes.each do |attr| dsConnStr += attr.text end @connHash = Digest::MD5.hexdigest(dsConnStr) @uuid = @connHash end |
#tableauVersion ⇒ Object
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# File 'lib/twb/datasource.rb', line 101 def tableauVersion tabVersion @tableauVersion = tabVersion end |
#tableFields ⇒ Object
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# File 'lib/twb/datasource.rb', line 394 def tableFields @tableFieldsMap.values end |
#updateTime ⇒ Object
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# File 'lib/twb/datasource.rb', line 379 def updateTime attr = @node.xpath('.//@update-time').first @updateTime = attr.nil? ? nil : attr.value end |