Class: When::Events::DataSet

Inherits:
Object
  • Object
show all
Defined in:
lib/when_exe/events.rb

Overview

一言語対応データセット

特定の言語用データセットを保持する

Defined Under Namespace

Modules: ExternalRepository, SparqlRepository

Constant Summary collapse

Operations =

オブジェクト操作対応付け

Hash.new(nooperation).merge({
  URI               => to_uri,
  IRI               => to_uri,
  INTEGER           => to_i,
  FLOAT             => to_f,
  DOUBLE            => to_f,
  [:first, INTEGER] => first_to_i,
  [:first, FLOAT  ] => first_to_f,
  [:first, DOUBLE ] => first_to_f,
  [:last,  INTEGER] => last_to_i,
  [:last,  FLOAT  ] => last_to_f,
  [:last,  DOUBLE ] => last_to_f,
  RANGE             => to_range,
  DATE              => to_date,
  TIME              => to_time,
  DATETIME          => to_date_time,

  WEST              => to_long,
  EAST              => to_long,
  SOUTH             => to_lat,
  NORTH             => to_lat,
  BOTTOM            => to_alt,
  TOP               => to_alt
})

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(definitions, language = '', uri = '', parent = nil, &block) ⇒ DataSet

一言語対応データセットを生成する

Parameters:

  • definitions (Array<Array<Array<String>, String>>) —

    定義行の情報

  • language (String) (defaults to: '') —

    言語コード

  • uri (String) (defaults to: '') —

    定義の所在のルート(ts:referenceが相対位置の場合に使用)

  • parent (When::Events::DataSets) (defaults to: nil) —

    所属する多言語対応データセット

  • block (Block) —

    キャッシュされたファイルパスの読み替え処理

Raises:

  • (IOError) 


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# File 'lib/when_exe/events.rb', line 1273

def initialize(definitions, language='', uri='', parent=nil, &block)
  @language = language
  @parent   = parent
  @prefix   = {}
  @role     = {}
  @rdf      = {}
  @csv      = {}
  @l_to_i   = {}
  @i_to_l   = {}
  @role_for_dataset = {}
  @definitions = definitions
  @definitions.each do |definition, lang|
    parameters = definition[1..2].map {|item| item.strip}
    case definition.first
    when /\A(.+):\z/
      @prefix[$1] = parameters
    when /\A\[(.+)\]\z/
      key=extract($1)
      @csv[key ] = operation(key, parameters, lang)
    when /\A<(.+)>\z/
      key=extract($1)
      @rdf[key ] = operation(key, parameters, lang)
    when /\A\{(.+)\}\z/
      key=extract($1)
      (DataSet.for_dataset?(parameters.first, key) ? @role_for_dataset : @role)[key] = operation(key, parameters, lang)
    end
  end
  @prefix_description  = @prefix.values.reject {|value| value.size < 2}.sort_by {|value| -value.first.length}
  @namespace_to_prefix = @prefix.invert.sort.reverse
  @used_ns  = {}
  @resource = Hash.new {|hash,key|
    @namespace_to_prefix.each do |prefix|
      index = key.index(prefix.first.first)
      if index && index == 0
        @used_ns[prefix.last] = prefix.first.first
        break
      end
    end
    hash[key] = ::RDF::URI.new(key)
  }

  @events = []
  @index  = {}
  (@role.keys + @rdf.keys + @csv.keys).each {|item| @index[item] = Hash.new {|hash,key| hash[key]=[]}}
  target = @role_for_dataset[REFERENCE][:target]
  unless target =~ /:/ # Relative path
    path     = uri.split('/')
    path[-1] = target
    target   = path.join('/')
  end
  operation = @role_for_dataset[REFERENCE][:original]
  source    = extract(target)
  source    = yield(source) if block_given? && operation !~ /SPARQL|CalendarEra/i
  raise IOError, target + ': not ready' unless source
  for_each_record(source, operation) do |row|
    event = Event.new(self, @events.size+1, row)
    @events << event

    @role.keys.each do |item|
      case item
      when LABEL, REFERENCE
      when HAS_PART
        if event.role[HAS_PART].kind_of?(Array)
          event.role[HAS_PART].each do |word|
            @index[HAS_PART][word] << @events.size
          end
        else
          event.each_word do |word|
            @index[HAS_PART][word] << @events.size
          end
        end
      when WHAT_DAY
        date = event.role[WHAT_DAY]
        key = [date.class.to_s !~ /\AWhen/ ||
               date.frame.kind_of?(When::CalendarTypes::Christian),
               date.month * 1, date.day]
        @index[WHAT_DAY][key] << @events.size
      else
        add_index(:role, item)
      end
    end

    [:rdf, :csv].each do |method|
      send(method).keys.each do |item|
        add_index(method, item)
      end
    end
  end

  @order = {}
  [:role, :rdf, :csv].each do |method|
    send(method).each_pair do |item, definition|
      next unless definition[:index] == :order
      @order[item] = (1..@events.size).to_a.sort_by {|id| @events[id-1].send(method)[item]}
      @order[item].each_with_index do |id, index|
        @events[id-1].order[item] = index + 1
      end
    end
  end
  @index.each_value do |hash|
    hash.each_value do |value|
      value.uniq!
      value.sort_by! {|id| @events[id-1].order[START]} if @order.key?(START)
    end
  end

  @default_graph   = $1 if @role.key?(SUBJECT) && /\A(.+)<(.+)>\z/ =~ extract(@role[SUBJECT][:target])
  @default_graph ||= parent.iri if parent
end

Instance Attribute Details

#csv ⇒ Hash<String(prefix:name)=>Hash> (readonly)

CSV変数の定義

Returns:

  • (Hash<String(prefix:name)=>Hash>) 


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# File 'lib/when_exe/events.rb', line 743

def csv
  @csv
end

#default_graph ⇒ String(URI) (readonly)

デフォルト Graph の URI

Returns:



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# File 'lib/when_exe/events.rb', line 708

def default_graph
  @default_graph
end

#definitions ⇒ Array<String> (readonly)

定義行の元情報

Returns:



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# File 'lib/when_exe/events.rb', line 694

def definitions
  @definitions
end

#events ⇒ When::Events::Event (readonly)

時間座標を持つイベント

Returns:



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# File 'lib/when_exe/events.rb', line 701

def events
  @events
end

#index ⇒ Hash<String(prefix:name)=>Hash<String(key)=>Array>> (readonly)

一致キーのためのインデクス

Returns:



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# File 'lib/when_exe/events.rb', line 750

def index
  @index
end

#language ⇒ String (readonly)

自身の言語

Returns:



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# File 'lib/when_exe/events.rb', line 680

def language
  @language
end

#order ⇒ Hash<String(prefix:name)=>Array> (readonly)

順序キーのためのインデクス

Returns:



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# File 'lib/when_exe/events.rb', line 757

def order
  @order
end

#parent ⇒ When::Events::DataSets (readonly)

所属する多言語対応データセット

Returns:



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# File 'lib/when_exe/events.rb', line 687

def parent
  @parent
end

#prefix ⇒ Hash<String(prefix)=>String(namespace)> (readonly)

名前空間

Returns:



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# File 'lib/when_exe/events.rb', line 715

def prefix
  @prefix
end

#prefix_description ⇒ Array<Array<String(namespace), String(description)>> (readonly)

名前空間の説明

Returns:



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# File 'lib/when_exe/events.rb', line 722

def prefix_description
  @prefix_description
end

#rdf ⇒ Hash<String(prefix:name)=>Hash> (readonly)

RDF変数の定義

Returns:

  • (Hash<String(prefix:name)=>Hash>) 


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# File 'lib/when_exe/events.rb', line 736

def rdf
  @rdf
end

#resource ⇒ Hash<String(iri)=>::RDF::URI> (readonly)

データセットで使用しているRDF::URI リソース

Returns:

  • (Hash<String(iri)=>::RDF::URI>) 


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# File 'lib/when_exe/events.rb', line 764

def resource
  @resource
end

#role ⇒ Hash<String(prefix:name)=>Hash> (readonly)

ロール変数の定義

Returns:

  • (Hash<String(prefix:name)=>Hash>) 


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# File 'lib/when_exe/events.rb', line 729

def role
  @role
end

#used_ns ⇒ Hash<String(prefix)=>String(namespace)> (readonly)

RDF::URI リソースで使用された prefix - namespace 対

Returns:



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# File 'lib/when_exe/events.rb', line 771

def used_ns
  @used_ns
end

Instance Method Details

#edge_included(edge, range, method = :to_i) ⇒ Array<Integer>

順序キーによる検索

Parameters:

  • edge (String) —

    順序キー(ts:start, ts:until, ts:west, ts:east, ts:south, ts:north, ts:bottom, ts:top)

  • range (Range) —

    絞り込む範囲

  • method (Symbol) (defaults to: :to_i) —

    スカラー化メソッドの指定 :to_i - 整数変数, :to_f - 実数変数

Returns:

  • (Array<Integer>) —

    イベントのIDの配列



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# File 'lib/when_exe/events.rb', line 1210

def edge_included(edge, range, method=:to_i)
  _edge_included(edge, Range.new(*range_args(range, method)))
end

#event(uri, graph = nil) ⇒ Hash<String(GraphURI)=>RDF:Repository>

指定の URIまたはイベントの通し番号を主語とする Statement からなる RDF:Repository を生成する

Parameters:

  • uri (String) —

    主語の URI

  • uri (Integer) —

    主語のイベントの通し番号

  • graph (String) (defaults to: nil) —

    検索対象のグラフ(ダミー)

Returns:

  • (Hash<String(GraphURI)=>RDF:Repository>) —

    生成した Repository の Hash



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# File 'lib/when_exe/events.rb', line 802

def event(uri, graph=nil)
  rep   = Hash.new {|hash,key| hash[key] = ::RDF::Repository.new}
  list  = uri.kind_of?(String) ? @index[SUBJECT][uri] : [uri]
  unless list.empty?
    event = @events[list.first-1]
    rep[''].insert(*event.statements)
    rep[event.role[GRAPH]].insert(*event.statements) if @role.key?(GRAPH)
  end
  rep
end

#extract(predicate) ⇒ String

プレフィクスを名前空間に展開する

Parameters:

  • predicate (String) —

    プレフィクス付きの URI

Returns:

  • (String) —

    プレフィクスを名前空間に展開した URI



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# File 'lib/when_exe/events.rb', line 1256

def extract(predicate)
  return predicate unless /\A(.+?):(.+)\z/ =~ predicate && @prefix.key?($1)
  prefix, body = $~[1..2]
  namespace = @prefix[prefix].first
  namespace = namespace.sub(/([a-z0-9])\z/i, '\1#')
  namespace + body
end

#intersection_events(options) ⇒ Array<When::Events::Event>

指定の条件を満たす Event の Array を返す

Parameters:

  • options (Hash) —

    以下の通り

Options Hash (options):

  • 'date' (String) —

    日付範囲

  • 'contributor' (String) —

    情報提供者

  • 'graph' (String) —

    グラフ

  • 'group' (String) —

    グループ

  • 'location' (String) —

    空間位置

  • 'day' (String) —

    今日は何の日用の日付(共通)

  • 'lsday' (String) —

    今日は何の日用の日付(エスニック)

  • 'keyword' (String) —

    キーワード

Returns:



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# File 'lib/when_exe/events.rb', line 1111

def intersection_events(options)
  list = []

  # 日付範囲
  if @order.key?(START) && /./ =~ options['date']
    range = Range.convert_from(When.date_or_era(options['date']))
    list << (@order.key?(UNTIL) ?
               range_overlaped(START, UNTIL, range) :
               edge_included(START, range))
  end

  # キーワード
  if @index.key?(HAS_PART) && /./ =~ options['keyword']
    options['keyword'].split('*').each {|key| list << @index[HAS_PART][key]}
  end

  # 情報提供者
  if @index.key?(CONTRIBUTOR) && /\A(!)?(.+)/ =~ options['contributor']
    reverse, contributor = $1, $2
    sublist = @index[CONTRIBUTOR][contributor]
    if sublist
      sublist = (@order[START] || (1..@events.size).to_a) - sublist if reverse
      list << sublist
    end
  end

  # グループ
  if @index.key?(GROUP) && /./ =~ options['group']
    list << @index[GROUP][options['group']]
  end

  # 空間位置
  if /./ =~ options['location']
    if @order.key?(WEST) || @order.key?(SOUTH) || @order.key?(BOTTOM)
      range = When.where?(options['location'])
      range = When::Coordinates::Spatial::Range.new(range,range) unless range.kind_of?(When::Coordinates::Spatial::Range)
      [[WEST,   EAST,  :long],
       [SOUTH,  NORTH, :lat ],
       [BOTTOM, TOP,   :alt ]].each do |pattern|
         first, last, method = pattern
         if @order.key?(first)
           list << (@order.key?(last) ?
                      range_overlaped(first, last, range.send(method), :to_f) :
                      edge_included(first, range.send(method), :to_f))
         end
       end
     elsif @index.key?(SPATIAL)
       list << @index[SPATIAL][options['location']]
     end
  end

  # グラフ
  if @index.key?(GRAPH) && /./ =~ options['graph']
    list << @index[GRAPH][options['graph']]
  end

  # 今日は何の日
  if @index.key?(WHAT_DAY)
    list << @index[WHAT_DAY][[true,  $1.to_i,$2.to_i]] if /\A(\d{1,2})[-\/]?(\d{1,2})\z/ =~ options['day']
    list << @index[WHAT_DAY][[false, $1.to_i,$2.to_i]] if /\A(\d{1,2})[-\/]?(\d{1,2})\z/ =~ options['lsday']
  end

  # 共通集合
  list.compact!
  return list if list.empty?
  intersection = list.shift
  list.each {|s| intersection &= s}
  events = intersection.map {|id| @events[id-1]}
  return events unless range

  # 個別の絞込み
  narrowed_events = []
  sort_required = false
  events.each do |event|
    event_range = event.role[VALID]
    if event_range.kind_of?(Range) && event_range.is_complex?
      event_range.overlaped(range).each do |focused_date|
        sort_required = true
        focused_event = event.deep_copy
        focused_event.role[VALID] = focused_date
        narrowed_events << focused_event
      end
    else
      narrowed_events << event
    end
  end
  narrowed_events.sort_by! {|event| event.role[VALID]} if sort_required
  narrowed_events
end

#range_overlaped(first_edge, last_edge, range, method = :to_i) ⇒ Array<Integer>

範囲の重なり

Parameters:

  • first_edge (String) —

    順序キー(ts:start, ts:west, ts:south, ts:bottom)

  • last_edge (String) —

    順序キー(ts:until, ts:east, ts:north, ts:top)

  • range (Range) —

    絞り込む範囲

  • method (Symbol) (defaults to: :to_i) —

    スカラー化メソッドの指定 :to_i - 整数変数, :to_f - 実数変数

Returns:

  • (Array<Integer>) —

    イベントのIDの配列



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# File 'lib/when_exe/events.rb', line 1224

def range_overlaped(first_edge, last_edge, range, method=:to_i)
  args  = range_args(range, method)
  upper = ::Range.new(args[0], +Float::MAX/4, false)
  lower = ::Range.new(-Float::MAX/4, args[1], args[2])
  ([first_edge, last_edge].map {|edge| [@order[edge].first, @order[edge].last]}.flatten.uniq.select {|id|
    lower.include?(@events[id-1].role[first_edge]) && upper.include?(@events[id-1].role[last_edge])
  } | (
    @order[last_edge][_start_edge(last_edge, upper, 0, @events.size-1)..-1] &
    @order[first_edge][0..._ended_edge(first_edge, lower, 0, @events.size-1)]
  )).sort_by {|id|
    @events[id-1].role[first_edge]
  }
end

#repository(events = nil) ⇒ Hash<String(GraphURI)=>RDF:Repository>

指定の Event を主語とする Statement からなる RDF:Repository を生成する

Parameters:

Returns:

  • (Hash<String(GraphURI)=>RDF:Repository>) —

    生成した Repository の Hash



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# File 'lib/when_exe/events.rb', line 780

def repository(events=nil)
  if events
    rep = Hash.new {|hash,key| hash[key] = ::RDF::Repository.new}
    events.each do |event|
      rep[''].insert(*event.statements)
      rep[event.role[GRAPH]].insert(*event.statements) if @role.key?(GRAPH)
    end
    rep
  else
    @repository ||= repository(@events)
  end
end