/
cube.rb
493 lines (394 loc) · 11.8 KB
/
cube.rb
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require 'forwardable'
module Mondrian
module OLAP
module Annotated
private
def annotations_for(raw_element)
@annotations ||= begin
annotated = raw_element.unwrap(Java::MondrianOlap::Annotated.java_class)
annotations_hash = annotated.getAnnotationMap.to_hash
annotations_hash.each do |key, annotation|
annotations_hash[key] = annotation.getValue
end
annotations_hash
end
end
end
class Cube
extend Forwardable
def self.get(connection, name)
if raw_cube = connection.raw_schema.getCubes.get(name)
Cube.new(connection, raw_cube)
end
end
def initialize(connection, raw_cube)
@connection = connection
@raw_cube = raw_cube
@cache_control = CacheControl.new(@connection, self)
end
attr_reader :raw_cube
def name
@name ||= @raw_cube.getName
end
def description
@description ||= @raw_cube.getDescription
end
def caption
@caption ||= @raw_cube.getCaption
end
include Annotated
def annotations
annotations_for(@raw_cube)
end
def visible?
@raw_cube.isVisible
end
def dimensions
@dimenstions ||= @raw_cube.getDimensions.map { |d| dimension_from_raw(d) }
end
def dimension_names
dimensions.map(&:name)
end
def dimension(name)
if @dimensions
@dimensions.detect { |d| d.name == name }
elsif raw_dimension = @raw_cube.getDimensions.detect { |d| d.getName == name }
dimension_from_raw(raw_dimension)
end
end
def hierarchies
@hierarchies ||= @raw_cube.getHierarchies.map { |h| hierarchy_from_raw(h) }
end
def hierarchy_names
hierarchies.map(&:name)
end
def hierarchy(name)
if @hierarchies
@hierarchies.detect { |h| h.name == name }
elsif raw_hierarchy = @raw_cube.getHierarchies.detect { |h| h.getName == name }
hierarchy_from_raw(raw_hierarchy)
end
end
def query
Query.from(@connection, name)
end
def member(full_name)
segment_list = Java::OrgOlap4jMdx::IdentifierNode.parseIdentifier(full_name).getSegmentList
raw_member = @raw_cube.lookupMember(segment_list)
raw_member && Member.new(raw_member)
end
def member_by_segments(*segment_names)
segment_list = Java::OrgOlap4jMdx::IdentifierNode.ofNames(*segment_names).getSegmentList
raw_member = @raw_cube.lookupMember(segment_list)
raw_member && Member.new(raw_member)
end
def_delegators :@cache_control, :flush_region_cache_with_segments, :flush_region_cache_with_segments
def_delegators :@cache_control, :flush_region_cache_with_full_names, :flush_region_cache_with_full_names
private
def dimension_from_raw(raw_dimension)
Dimension.new(self, raw_dimension)
end
def hierarchy_from_raw(raw_hierarchy)
Hierarchy.new(dimension_from_raw(raw_hierarchy.getDimension), raw_hierarchy)
end
end
class Dimension
def initialize(cube, raw_dimension)
@cube = cube
@raw_dimension = raw_dimension
end
attr_reader :cube, :raw_dimension
def name
@name ||= @raw_dimension.getName
end
def description
@description ||= @raw_dimension.getDescription
end
def caption
@caption ||= @raw_dimension.getCaption
end
def full_name
@full_name ||= @raw_dimension.getUniqueName
end
def hierarchies
@hierarchies ||= @raw_dimension.getHierarchies.map{|h| Hierarchy.new(self, h)}
end
def hierarchy_names
hierarchies.map{|h| h.name}
end
def hierarchy(name = nil)
name ||= self.name
hierarchies.detect{|h| h.name == name}
end
def measures?
@raw_dimension.getDimensionType == Java::OrgOlap4jMetadata::Dimension::Type::MEASURE
end
def dimension_type
case @raw_dimension.getDimensionType
when Java::OrgOlap4jMetadata::Dimension::Type::TIME
:time
when Java::OrgOlap4jMetadata::Dimension::Type::MEASURE
:measures
else
:standard
end
end
include Annotated
def annotations
annotations_for(@raw_dimension)
end
def visible?
@raw_dimension.isVisible
end
end
class Hierarchy
def initialize(dimension, raw_hierarchy)
@dimension = dimension
@raw_hierarchy = raw_hierarchy
end
attr_reader :raw_hierarchy, :dimension
def name
@name ||= @raw_hierarchy.getName
end
def description
@description ||= @raw_hierarchy.getDescription
end
def caption
@caption ||= @raw_hierarchy.getCaption
end
def dimension_name
@dimension.name
end
def levels
@levels = @raw_hierarchy.getLevels.map{|l| Level.new(self, l)}
end
def level(name)
levels.detect{|l| l.name == name}
end
def level_names
levels.map{|l| l.name}
end
def has_all?
@raw_hierarchy.hasAll
end
def all_member_name
has_all? ? @raw_hierarchy.getRootMembers.first.getName : nil
end
def all_member
has_all? ? Member.new(@raw_hierarchy.getRootMembers.first) : nil
end
def root_members
@raw_hierarchy.getRootMembers.map{|m| Member.new(m)}
end
def root_member_names
@raw_hierarchy.getRootMembers.map{|m| m.getName}
end
def root_member_full_names
@raw_hierarchy.getRootMembers.map{|m| m.getUniqueName}
end
def child_names(*parent_member_segment_names)
Error.wrap_native_exception do
parent_member = if parent_member_segment_names.empty?
return root_member_names unless has_all?
all_member
else
@dimension.cube.member_by_segments(*parent_member_segment_names)
end
parent_member && parent_member.children.map{|m| m.name}
end
end
include Annotated
def annotations
annotations_for(@raw_hierarchy)
end
def visible?
@raw_hierarchy.isVisible
end
end
class Level
def initialize(hierarchy, raw_level)
@hierarchy = hierarchy
@raw_level = raw_level
end
attr_reader :raw_level
def name
@name ||= @raw_level.getName
end
def description
@description ||= @raw_level.getDescription
end
def caption
@caption ||= @raw_level.getCaption
end
def depth
@raw_level.getDepth
end
def cardinality
@cardinality = @raw_level.getCardinality
end
def cardinality=(value)
mondrian_level.setApproxRowCount(value || Java::JavaLang::Integer::MIN_VALUE)
end
def members_count
@members_count ||= begin
if cardinality >= 0
cardinality
else
Error.wrap_native_exception do
@raw_level.getMembers.size
end
end
end
end
def members
Error.wrap_native_exception do
@raw_level.getMembers.map{|m| Member.new(m)}
end
end
def mondrian_level
@raw_level.unwrap(Java::MondrianOlap::Level.java_class)
end
include Annotated
def annotations
annotations_for(@raw_level)
end
def visible?
@raw_level.isVisible
end
end
class Member
def initialize(raw_member)
@raw_member = raw_member
end
attr_reader :raw_member
def name
@name ||= @raw_member.getName
end
def full_name
@full_name ||= @raw_member.getUniqueName
end
def caption
@caption ||= @raw_member.getCaption
end
def calculated?
@raw_member.isCalculated
end
def calculated_in_query?
@raw_member.isCalculatedInQuery
end
def visible?
@raw_member.isVisible
end
def all_member?
@raw_member.isAll
end
def drillable?
return false if calculated?
# @raw_member.getChildMemberCount > 0
# This hopefully is faster than counting actual child members
raw_level = @raw_member.getLevel
raw_levels = raw_level.getHierarchy.getLevels
raw_levels.indexOf(raw_level) < raw_levels.size - 1
end
def depth
@raw_member.getDepth
end
def dimension_type
case @raw_member.getDimension.getDimensionType
when Java::OrgOlap4jMetadata::Dimension::Type::TIME
:time
when Java::OrgOlap4jMetadata::Dimension::Type::MEASURE
:measures
else
:standard
end
end
def children
Error.wrap_native_exception do
@raw_member.getChildMembers.map{|m| Member.new(m)}
end
end
def descendants_at_level(level)
Error.wrap_native_exception do
raw_level = @raw_member.getLevel
raw_levels = raw_level.getHierarchy.getLevels
current_level_index = raw_levels.indexOf(raw_level)
descendants_level_index = raw_levels.indexOfName(level)
return nil unless descendants_level_index > current_level_index
members = [self]
(descendants_level_index - current_level_index).times do
members = members.map do |member|
member.children
end.flatten
end
members
end
end
def property_value(name)
if property = @raw_member.getProperties.get(name)
@raw_member.getPropertyValue(property)
end
end
def property_formatted_value(name)
if property = @raw_member.getProperties.get(name)
@raw_member.getPropertyFormattedValue(property)
end
end
def mondrian_member
@raw_member.unwrap(Java::MondrianOlap::Member.java_class)
end
include Annotated
def annotations
annotations_for(@raw_member)
end
def format_string
format_exp = property_value('FORMAT_EXP')
if format_exp && format_exp =~ /\A"(.*)"\z/
format_exp = $1
end
if format_exp && !format_exp.empty?
format_exp
end
end
def cell_formatter_name
if cf = cell_formatter
cf.class.name.split('::').last.gsub(/Udf\z/, '')
end
end
def cell_formatter
if dimension_type == :measures
cube_measure = raw_member.unwrap(Java::MondrianOlap::Member.java_class)
if value_formatter = cube_measure.getFormatter
f = value_formatter.java_class.declared_field('cf')
f.accessible = true
f.value(value_formatter)
end
end
end
end
class CacheControl
def initialize(connection, cube)
@connection = connection
@cube = cube
@mondrian_cube = @cube.raw_cube.unwrap(Java::MondrianOlap::Cube.java_class)
@cache_control = @connection.raw_cache_control
end
def flush_region_cache_with_segments(*segment_names)
members = segment_names.map { |name| @cube.member_by_segments(*name).mondrian_member }
flush(members)
end
def flush_region_cache_with_full_names(*full_names)
members = full_names.map { |name| @cube.member(*name).mondrian_member }
flush(members)
end
private
def flush(members)
regions = members.map do |member|
@cache_control.create_member_region(member, true)
end
regions << @cache_control.create_measures_region(@mondrian_cube)
@cache_control.flush(@cache_control.create_crossjoin_region(*regions))
end
end
end
end