Class: OpenC3::Target

Inherits:
Object show all
Defined in:
lib/openc3/system/target.rb

Overview

Target encapsulates the information about a OpenC3 target. Targets are accessed through interfaces and have command and telemetry definition files which define their access.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target_name, path, gem_path = nil) ⇒ Target

Creates a new target by processing the target.txt file in the directory given by the path joined with the target_name. Records all the command and telemetry definition files found in the targets cmd_tlm directory. System uses this list and processes them using PacketConfig.

Parameters:

  • target_name (String) —

    The name of the target.

  • path (String) —

    Path to the target directory

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

    Path to the gem file or nil if there is no gem



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# File 'lib/openc3/system/target.rb', line 77

def initialize(target_name, path, gem_path = nil)
  @language = 'ruby'
  @requires = []
  @ignored_parameters = []
  @ignored_items = []
  @cmd_tlm_files = []
  @interface = nil
  @routers = []
  @cmd_cnt = 0
  @tlm_cnt = 0
  @name = target_name.clone.upcase.freeze
  get_target_dir(path, gem_path)
  process_target_config_file()

  # If target.txt didn't specify specific cmd/tlm files then add everything
  if @cmd_tlm_files.empty?
    @cmd_tlm_files = add_all_cmd_tlm()
  else
    add_cmd_tlm_partials()
  end
end

Instance Attribute Details

#cmd_cnt ⇒ Integer

Returns The number of command packets send to this target.

Returns:

  • (Integer) —

    The number of command packets send to this target



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# File 'lib/openc3/system/target.rb', line 61

def cmd_cnt
  @cmd_cnt
end

#cmd_tlm_files ⇒ Array<String> (readonly)

Returns List of configuration files which define the commands and telemetry for this target.

Returns:

  • (Array<String>) —

    List of configuration files which define the commands and telemetry for this target



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# File 'lib/openc3/system/target.rb', line 49

def cmd_tlm_files
  @cmd_tlm_files
end

#dir ⇒ String (readonly)

Returns The directory which contains this target.

Returns:

  • (String) —

    The directory which contains this target



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# File 'lib/openc3/system/target.rb', line 55

def dir
  @dir
end

#filename ⇒ String (readonly)

Returns Target filename for this target.

Returns:

  • (String) —

    Target filename for this target



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# File 'lib/openc3/system/target.rb', line 52

def filename
  @filename
end

#id ⇒ String

Returns Id of the target configuration.

Returns:

  • (String) —

    Id of the target configuration



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# File 'lib/openc3/system/target.rb', line 67

def id
  @id
end

#ignored_items ⇒ Array<String> (readonly)

Returns List of items that should be ignored. Tools which access this target should not display or manipulate these items.

Returns:

  • (Array<String>) —

    List of items that should be ignored. Tools which access this target should not display or manipulate these items.



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# File 'lib/openc3/system/target.rb', line 45

def ignored_items
  @ignored_items
end

#ignored_parameters ⇒ Array<String> (readonly)

Returns List of parameters that should be ignored. Tools which access this target should not display or manipulate these parameters.

Returns:

  • (Array<String>) —

    List of parameters that should be ignored. Tools which access this target should not display or manipulate these parameters.



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# File 'lib/openc3/system/target.rb', line 40

def ignored_parameters
  @ignored_parameters
end

#interface ⇒ Interface

Returns The interface used to access the target.

Returns:

  • (Interface) —

    The interface used to access the target



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# File 'lib/openc3/system/target.rb', line 58

def interface
  @interface
end

#language ⇒ String (readonly)

Returns Programming language. Must be ‘ruby’ or ‘python’.

Returns:

  • (String) —

    Programming language. Must be ???ruby??? or ???python???.



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# File 'lib/openc3/system/target.rb', line 31

def language
  @language
end

#name ⇒ String (readonly)

Returns Name of the target. This can be overridden when the system processes the target.

Returns:

  • (String) —

    Name of the target. This can be overridden when the system processes the target.



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# File 'lib/openc3/system/target.rb', line 28

def name
  @name
end

#requires ⇒ Array<String> (readonly)

Returns List of filenames that must be required by Ruby before parsing the command and telemetry definitions for this target.

Returns:

  • (Array<String>) —

    List of filenames that must be required by Ruby before parsing the command and telemetry definitions for this target



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# File 'lib/openc3/system/target.rb', line 35

def requires
  @requires
end

#tlm_cnt ⇒ Integer

Returns The number of telemetry packets received from this target.

Returns:

  • (Integer) —

    The number of telemetry packets received from this target



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# File 'lib/openc3/system/target.rb', line 64

def tlm_cnt
  @tlm_cnt
end

Instance Method Details

#as_json(*_a) ⇒ Object 



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# File 'lib/openc3/system/target.rb', line 173

def as_json(*_a)
  config = {}
  config['name'] = @name
  config['requires'] = @requires
  config['ignored_parameters'] = @ignored_parameters
  config['ignored_items'] = @ignored_items
  config['cmd_tlm_files'] = @cmd_tlm_files
  config['id'] = @id
  config
end

#process_file(filename) ⇒ Object

Parses the target configuration file

Parameters:

  • filename (String) —

    The target configuration file to parse



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# File 'lib/openc3/system/target.rb', line 102

def process_file(filename)
  Logger.instance.info "Processing target definition in file '#{filename}'"
  parser = ConfigParser.new("https://docs.openc3.com/docs/configuration/target")
  parser.parse_file(filename) do |keyword, parameters|
    case keyword
    when 'LANGUAGE'
      usage = "#{keyword} <ruby | python>"
      parser.verify_num_parameters(1, 1, usage)
      @language = parameters[0].downcase

    when 'REQUIRE'
      usage = "#{keyword} <FILENAME>"
      parser.verify_num_parameters(1, 1, usage)
      filename = File.join(@dir, 'lib', parameters[0])
      begin
        # Require absolute path to file in target lib folder. Prevents name
        # conflicts at the require step
        OpenC3.disable_warnings do
          OpenC3.require_file(filename, false)
        end
      rescue LoadError
        begin
          # If we couldn't load at the target/lib level check everywhere
          OpenC3.disable_warnings do
            filename = parameters[0]
            OpenC3.require_file(parameters[0])
          end
        rescue Exception => e
          raise parser.error(e.formatted)
        end
      rescue Exception => e
        raise parser.error(e.formatted)
      end

      # This code resolves any relative paths to absolute before putting into the @requires array
      unless Pathname.new(filename).absolute?
        $:.each do |search_path|
          test_filename = File.join(search_path, filename).gsub("\\", "/")
          if File.exist?(test_filename)
            filename = test_filename
            break
          end
        end
      end

      @requires << filename

    when 'IGNORE_PARAMETER', 'IGNORE_ITEM'
      usage = "#{keyword} <#{keyword.split('_')[1]} NAME>"
      parser.verify_num_parameters(1, 1, usage)
      @ignored_parameters << parameters[0].upcase if keyword.include?("PARAMETER")
      @ignored_items << parameters[0].upcase if keyword.include?("ITEM")

    when 'COMMANDS', 'TELEMETRY'
      usage = "#{keyword} <FILENAME>"
      parser.verify_num_parameters(1, 1, usage)
      filename = File.join(@dir, 'cmd_tlm', parameters[0])
      raise parser.error("#{filename} not found") unless File.exist?(filename)

      @cmd_tlm_files << filename

    when 'CMD_UNIQUE_ID_MODE', 'TLM_UNIQUE_ID_MODE'
      # Deprecated - Now autodetected

    else
      # blank 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