Class: URBANopt::GeoJSON::GeoFile

Inherits:
Core::FeatureFile
  • Object
show all
Defined in:
lib/urbanopt/geojson/geo_file.rb

Constant Summary collapse

@@geojson_schema = 
get_geojson_schema(strict)
@@schema_file_lock = 
Mutex.new
@@building_schema = 
get_building_schema(strict)
@@district_system_schema = 
get_district_system_schema(strict)
@@region_schema = 
get_region_schema(strict)
@@electrical_connector_schema = 
get_electrical_connector_schema(strict)
@@electrical_junction_schema = 
get_electrical_junction_schema(strict)
@@thermal_connector_schema = 
get_thermal_connector_schema(strict)
@@thermal_junction_schema = 
get_thermal_junction_schema(strict)
@@site_schema = 
get_site_schema(strict)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(geojson_file, path = nil) ⇒ GeoFile

Initialize GeoJSON file and path.

Parameters

  • path - Type:String GeoJSON File path.

  • data - Type:Hash Contains the GeoJSON File.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 26

def initialize(geojson_file, path = nil)
  @path = path
  @geojson_file = geojson_file
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 130

def path
  @path
end

Class Method Details

.from_file(path) ⇒ Object

Parameters

Used to check the GeoJSON file path.

  • path - Type:String - GeoJSON file path.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 36

def self.from_file(path)
  if path.nil? || path.empty?
    raise "GeoJSON file '#{path}' could not be found"
  end

  if !File.exist?(path)
    raise "GeoJSON file '#{path}' does not exist"
  end

  geojson_file = JSON.parse(
    File.open(path, 'r', &:read),
    symbolize_names: true
  )


  # validate geojson file against schema
  geojson_errors = validate(@@geojson_schema, geojson_file)
  unless geojson_errors.empty?
    raise "GeoJSON file does not adhere to the schema: \n #{geojson_errors.join('\n  ')}"
  end

  # initialize @@logger
  @@logger ||= URBANopt::GeoJSON.logger

  # validate project section first
  if geojson_file.key?(:project)
    errors = validate(@@site_schema, geojson_file[:project])

    unless errors.empty?
      raise "Project section does not adhere to schema: \n #{errors.join('\n  ')}"
    end
  end

  # validate each feature against schema
  geojson_file[:features].each do |feature|
    properties = feature[:properties]
    type = properties[:type]

    errors = []

    case type
    when 'Building'
      # In case detailed_model_filename present check for fewer properties
      if feature[:properties][:detailed_model_filename]
        if feature[:properties][:id].nil?
          raise('No id found for Building Feature')
        end
        if feature[:properties][:name].nil?
          raise('No name found for Building Feature')
        end
        if feature[:properties][:number_of_stories].nil?
          @@logger.warn("Number of stories is required to calculate shading using the UrbanGeometryCreation measure.\n" \
            "Not validating #{feature[:properties][:id]} against schema and ignoring in shading calculations")
        end
        feature[:additionalProperties] = true
      # In case hpxml_directory present check for fewer properties
      elsif feature[:properties][:hpxml_directory]
        if feature[:properties][:id].nil?
          raise('No id found for Building Feature')
        end
        if feature[:properties][:name].nil?
          raise('No name found for Building Feature')
        end
        @@logger.warn("OS-HPXML files may not conform to schema, which is usually ok.\n" \
          "Not validating #{feature[:properties][:id]} against schema")
      # Else validate for all required properties in the schema
      else
        errors = validate(@@building_schema, properties)
      end
    when 'District System'
      errors = validate(@@district_system_schema, properties)
    when 'Region'
      error = validate(@@district_system_schema, properties)
    when 'ElectricalJunction'
      errors = validate(@@electrical_junction_schema, properties)
    when 'ElectricalConnector'
      errors = validate(@@electrical_connector_schema, properties)
    when 'ThermalJunction'
      errors = validate(@@thermal_junction_schema, properties)
    when 'ThermalConnector'
      errors = validate(@@thermal_connector_schema, properties)
    end

    unless errors.empty?
      raise "#{type} does not adhere to schema: \n #{errors.join('\n  ')}"
    end
  end
  return new(geojson_file, path)
end

.get_building_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 237

def self.get_building_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/building_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_district_system_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 250

def self.get_district_system_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/district_system_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_electrical_connector_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 289

def self.get_electrical_connector_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/electrical_connector_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_electrical_junction_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 302

def self.get_electrical_junction_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/electrical_junction_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_geojson_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 225

def self.get_geojson_schema(strict)
  result = nil
  if @@geojson_schema.nil?
    @@schema_file_lock.synchronize do
      File.open(File.dirname(__FILE__) + '/schema/geojson_schema.json') do |f|
        result = JSON.parse(f.read, symbolize_names: true)
      end
    end
  end
  return result
end

.get_region_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 263

def self.get_region_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/region_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_site_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 276

def self.get_site_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/site_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_thermal_connector_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 315

def self.get_thermal_connector_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/thermal_connector_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.get_thermal_junction_schema(strict) ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 328

def self.get_thermal_junction_schema(strict)
  result = nil
  File.open(File.dirname(__FILE__) + '/schema/thermal_junction_properties.json') do |f|
    result = JSON.parse(f.read)
  end
  if strict
    result['additionalProperties'] = true
  else
    result['additionalProperties'] = false
  end
  return result
end

.validate(schema_json, data) ⇒ Object

Validate GeoJSON against schema.

Parameters

  • data - + - Type:Hash - Input GeoJSON file



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# File 'lib/urbanopt/geojson/geo_file.rb', line 220

def self.validate(schema_json, data)
  errors = JSON::Validator.fully_validate(schema_json, data, errors_as_objects: true)
  return errors
end

Instance Method Details

#features ⇒ Object

This method loops through all the features in the GeoJSON file, creates new Buildings or District Systems based on the feature type, and returns the features.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 136

def features
  result = []
  @geojson_file[:features].each do |f|
    if f[:properties] && f[:properties][:type] == 'Building'
      result << URBANopt::GeoJSON::Building.new(f)
    elsif f[:properties] && f[:properties][:type] == 'District System'
      result << URBANopt::GeoJSON::DistrictSystem.new(f)
    end
  end
  return result
end

#get_feature_by_id(feature_id) ⇒ Object

Returns feature object by feature_id from specified GeoJSON file and creates a new URBANopt::GeoJSON::Building or URBANopt::GeoJSON::DistrictSystem based on the feature type. Before returning the feature, merge ‘Site Origin’ properties into the feature

Parameters

  • feature_id - Type:String/Number - Id affiliated with feature object.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 155

def get_feature_by_id(feature_id)
  @geojson_file[:features].each do |f|
    if f[:properties] && f[:properties][:id] == feature_id
      # merge site origin properties
      f = merge_site_properties(f)
      if f[:properties][:type] == 'Building'

        return URBANopt::GeoJSON::Building.new(f)
      elsif f[:properties] && f[:properties][:type] == 'District System'
        return URBANopt::GeoJSON::DistrictSystem.new(f)
      end
    end
  end
  return nil
end

#json ⇒ Object 



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# File 'lib/urbanopt/geojson/geo_file.rb', line 126

def json
  @geojson_file
end

#merge_site_properties(feature) ⇒ Object

Merge Site Properties in Feature. Returns feature with site properties added to its properties section. Does not overwrite existing properties.

Parameters

feature - Type:Hash - feature object.



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# File 'lib/urbanopt/geojson/geo_file.rb', line 176

def merge_site_properties(feature)
  project = {}
  if @geojson_file.key?(:project)
    project = @geojson_file[:project]
  end

  # this maps site properties to building/district system properties.
  add_props = [
    { site: :surface_elevation, feature: :surface_elevation },
    { site: :timesteps_per_hour, feature: :timesteps_per_hour },
    { site: :begin_date, feature: :begin_date },
    { site: :end_date, feature: :end_date },
    { site: :cec_climate_zone, feature: :cec_climate_zone },
    { site: :climate_zone, feature: :climate_zone },
    { site: :default_template, feature: :template },
    { site: :weather_filename, feature: :weather_filename },
    { site: :tariff_filename, feature: :tariff_filename },
    { site: :emissions, feature: :emissions },
    { site: :electricity_emissions_future_subregion, feature: :electricity_emissions_future_subregion },
    { site: :electricity_emissions_hourly_historical_subregion, feature: :electricity_emissions_hourly_historical_subregion },
    { site: :electricity_emissions_annual_historical_subregion, feature: :electricity_emissions_annual_historical_subregion },
    { site: :electricity_emissions_future_year, feature: :electricity_emissions_future_year },
    { site: :electricity_emissions_hourly_historical_year, feature: :electricity_emissions_hourly_historical_year },
    { site: :electricity_emissions_annual_historical_year, feature: :electricity_emissions_annual_historical_year }
  ]

  add_props.each do |prop|
    if project.key?(prop[:site]) && project[prop[:site]]
      # property exists in site
      if !feature[:properties].key?(prop[:feature]) || feature[:properties][prop[:feature]].nil? || feature[:properties][prop[:feature]].to_s.empty?
        # property does not exist in feature or is nil: add site property (don't overwrite)
        feature[:properties][prop[:feature]] = project[prop[:site]]
      end
    end
  end

  return feature
end