Class: Cosmos::TableConfig

Inherits:
PacketConfig show all
Defined in:
lib/cosmos/tools/table_manager/table_config.rb

Overview

Processes the Table Manager configuration files which define tables. Since this class inherits from PacketConfig it only needs to implement Table Manager specific keywords. All tables are accessed through the table and tables methods.

Constant Summary

Constants inherited from PacketConfig

PacketConfig::COMMAND, PacketConfig::TELEMETRY

Instance Attribute Summary collapse

Attributes inherited from PacketConfig

#cmd_id_value_hash, #commands, #latest_data, #limits_groups, #limits_sets, #name, #telemetry, #tlm_id_value_hash, #warnings

Instance Method Summary collapse

Methods inherited from PacketConfig

#to_config, #to_xtce

Constructor Details

#initialize ⇒ TableConfig

Create the table configuration



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 36

def initialize
  super

  # Override commands with the Table::TARGET name to store tables
  @commands[Table::TARGET] = {}
end

Instance Attribute Details

#filename ⇒ String (readonly)

Returns Table configuration filename.

Returns:

  • (String) —

    Table configuration filename



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 33

def filename
  @filename
end

Instance Method Details

#finish_packet ⇒ Object

If the table is ROW_COLUMN all currently defined items are duplicated until the specified number of rows are created.



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 216

def finish_packet
  if @current_packet
    warnings = @current_packet.check_bit_offsets
    if warnings.length > 0
      raise "Overlapping items not allowed in tables.\n#{warnings}"
    end
    if @current_packet.type == :ROW_COLUMN
      items = @current_packet.sorted_items.clone
      (@current_packet.num_rows - 1).times do |row|
        items.each do |item|
          new_item = item.clone
          new_item.name = "#{new_item.name[0...-1]}#{row + 1}"
          @current_packet.append(new_item)
        end
      end
    end
    unless @defaults.empty?
      @current_packet.sorted_items.each_with_index do |item, index|
        case item.data_type
        when :INT, :UINT
          begin
            # Integer handles hex strings, e.g. 0xDEADBEEF
            item.default = Integer(@defaults[index])
          rescue ArgumentError
            value = item.states[@defaults[index]]
            if value
              item.default = value
            else
              raise "Unknown DEFAULT #{@defaults[index]} for item #{item.name}. Valid states are #{item.states.keys.join(', ')}."
            end
          end
        when :FLOAT
          item.default = @defaults[index].to_f
        when :STRING, :BLOCK
          item.default = @defaults[index]
        end
      end
    end
  end
  super()
end

#process_current_item(parser, keyword, params) ⇒ Object

Overridden method to handle the unique table item parameters: UNEDITABLE and HIDDEN. (see PacketConfig#process_current_item)



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 194

def process_current_item(parser, keyword, params)
  super(parser, keyword, params)
  case keyword
  when 'UNEDITABLE'
    usage = "#{keyword}"
    parser.verify_num_parameters(0, 0, usage)
    @current_item.editable = false
  when 'HIDDEN'
    usage = "#{keyword}"
    parser.verify_num_parameters(0, 0, usage)
    @current_item.hidden = true
  end
end

#process_current_packet(parser, keyword, params) ⇒ Object 



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 178

def process_current_packet(parser, keyword, params)
  super(parser, keyword, params)
rescue => err
  if err.message.include?('not found')
    raise parser.error(
            "#{params[0]} not found in table #{@current_packet.table_name}",
            'SELECT_PARAMETER <PARAMETER NAME>',
          )
  else
    raise err
  end
end

#process_file(filename) ⇒ Object

Processes a COSMOS table configuration file and uses the keywords to build up knowledge of the tables.

Parameters:

  • filename (String) —

    The name of the configuration file



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 63

def process_file(filename)
  # Partial files are included into another file and thus aren't directly processed
  return if File.basename(filename)[0] == '_' # Partials start with underscore
  @filename = filename
  @converted_type = nil
  @converted_bit_size = nil
  @proc_text = ''
  @building_generic_conversion = false
  @defaults = []

  parser =
    ConfigParser.new(
      'http://cosmosrb.com/docs/tools/#table-manager-configuration-cosmos--39',
    )
  parser.parse_file(filename) do |keyword, params|
    if @building_generic_conversion
      case keyword
      # Complete a generic conversion
      when 'GENERIC_READ_CONVERSION_END', 'GENERIC_WRITE_CONVERSION_END'
        parser.verify_num_parameters(0, 0, keyword)
        @current_item.read_conversion =
          GenericConversion.new(
            @proc_text,
            @converted_type,
            @converted_bit_size,
          ) if keyword.include? 'READ'
        @current_item.write_conversion =
          GenericConversion.new(
            @proc_text,
            @converted_type,
            @converted_bit_size,
          ) if keyword.include? 'WRITE'
        @building_generic_conversion = false
        # Add the current config.line to the conversion being built
      else
        @proc_text << parser.line << "\n"
      end # case keyword
    else
      # not building generic conversion
      case keyword
      when 'TABLEFILE'
        usage = "#{keyword} <File name>"
        parser.verify_num_parameters(1, 1, usage)
        table_filename = File.join(File.dirname(filename), params[0])
        unless File.exist?(table_filename)
          raise parser.error(
                  "Table file #{table_filename} not found",
                  usage,
                )
        end
        process_file(table_filename)
      when 'TABLE'
        finish_packet
        @current_packet =
          TableParser.parse_table(parser, @commands, @warnings)
        @current_cmd_or_tlm = COMMAND
        @default_index = 0

        # Select an existing table for editing
      when 'SELECT_TABLE'
        usage = "#{keyword} <TABLE NAME>"
        finish_packet
        parser.verify_num_parameters(1, 1, usage)
        table_name = params[0].upcase
        @current_packet = table(table_name)
        unless @current_packet
          raise parser.error("Table #{table_name} not found", usage)
        end

        #######################################################################
        # All the following keywords must have a current packet defined
        #######################################################################
      when 'SELECT_PARAMETER', 'PARAMETER', 'ID_PARAMETER',
           'ARRAY_PARAMETER', 'APPEND_PARAMETER', 'APPEND_ID_PARAMETER',
           'APPEND_ARRAY_PARAMETER', 'ALLOW_SHORT', 'HAZARDOUS',
           'PROCESSOR', 'META', 'DISABLE_MESSAGES', 'DISABLED'
        unless @current_packet
          raise parser.error("No current packet for #{keyword}")
        end
        process_current_packet(parser, keyword, params)

        #######################################################################
        # All the following keywords must have a current item defined
        #######################################################################
      when 'STATE', 'READ_CONVERSION', 'WRITE_CONVERSION',
           'POLY_READ_CONVERSION', 'POLY_WRITE_CONVERSION',
           'SEG_POLY_READ_CONVERSION', 'SEG_POLY_WRITE_CONVERSION',
           'GENERIC_READ_CONVERSION_START',
           'GENERIC_WRITE_CONVERSION_START', 'REQUIRED', 'LIMITS',
           'LIMITS_RESPONSE', 'UNITS', 'FORMAT_STRING', 'DESCRIPTION',
           'HIDDEN', 'MINIMUM_VALUE', 'MAXIMUM_VALUE', 'DEFAULT_VALUE',
           'OVERFLOW', 'UNEDITABLE'
        unless @current_item
          raise parser.error("No current item for #{keyword}")
        end
        process_current_item(parser, keyword, params)

      when 'DEFAULT'
        if params.length != @current_packet.sorted_items.length
          raise parser.error("DEFAULT #{params.join(' ')} length of #{params.length} doesn't match item length of #{@current_packet.sorted_items.length}")
        end
        @defaults.concat(params)

      else
        # blank config.lines will have a nil keyword and should not raise an exception
        raise parser.error("Unknown keyword '#{keyword}'") if keyword
      end # case keyword
    end
  end

  # Complete the last defined packet
  finish_packet
end

#start_item(parser) ⇒ Object 



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 209

def start_item(parser)
  finish_item
  @current_item = TableItemParser.parse(parser, @current_packet, @warnings)
end

#table(table_name) ⇒ Table

Parameters:

  • table_name (String) —

    Table name to return

Returns:



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 55

def table(table_name)
  tables[table_name.upcase]
end

#table_names ⇒ Array<String>

Returns All the table names.

Returns:



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 49

def table_names
  tables.keys
end

#tables ⇒ Array<Table>

Returns All tables defined in the configuration file.

Returns:

  • (Array<Table>) —

    All tables defined in the configuration file



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# File 'lib/cosmos/tools/table_manager/table_config.rb', line 44

def tables
  @commands[Table::TARGET]
end