Class: MQTT::Homie::Property
Constant Summary
Constants inherited from Base
Instance Attribute Summary collapse
-
#datatype ⇒ Object
readonly
Returns the value of attribute datatype.
-
#format ⇒ Object
Returns the value of attribute format.
-
#node ⇒ Object
readonly
Returns the value of attribute node.
-
#unit ⇒ Object
Returns the value of attribute unit.
-
#value ⇒ Object
Returns the value of attribute value.
Attributes inherited from Base
Instance Method Summary collapse
- #device ⇒ Object
- #full_name ⇒ Object
-
#initialize(node, id, name, datatype, value = nil, format: nil, retained: true, unit: nil, non_standard_value_check: nil, &block) ⇒ Property
constructor
A new instance of Property.
- #inspect ⇒ Object
- #mqtt ⇒ Object
- #publish ⇒ Object
- #published? ⇒ Boolean
- #range ⇒ Object
- #retained? ⇒ Boolean
- #set(value) ⇒ Object
- #settable? ⇒ Boolean
- #subscribe ⇒ Object
- #topic ⇒ Object
- #unpublish ⇒ Object
Constructor Details
#initialize(node, id, name, datatype, value = nil, format: nil, retained: true, unit: nil, non_standard_value_check: nil, &block) ⇒ Property
Returns a new instance of Property.
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# File 'lib/mqtt/homie/property.rb', line 10 def initialize(node, id, name, datatype, value = nil, format: nil, retained: true, unit: nil, non_standard_value_check: nil, &block) raise ArgumentError, "Invalid Homie datatype" unless %i[string integer float boolean enum color datetime duration].include?(datatype) raise ArgumentError, "retained must be boolean" unless [true, false].include?(retained) raise ArgumentError, "unit must be nil or a string" unless unit.nil? || unit.is_a?(String) if !value.nil? && !retained raise ArgumentError, "an initial value cannot be provided for a non-retained property" end super(id, name) @node = node @datatype = datatype self.format = format @retained = retained @unit = unit @value = value @published = false @non_standard_value_check = non_standard_value_check @block = block end |
Instance Attribute Details
#datatype ⇒ Object (readonly)
Returns the value of attribute datatype.
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# File 'lib/mqtt/homie/property.rb', line 8 def datatype @datatype end |
#format ⇒ Object
Returns the value of attribute format.
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# File 'lib/mqtt/homie/property.rb', line 8 def format @format end |
#node ⇒ Object (readonly)
Returns the value of attribute node.
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# File 'lib/mqtt/homie/property.rb', line 8 def node @node end |
#unit ⇒ Object
Returns the value of attribute unit.
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# File 'lib/mqtt/homie/property.rb', line 8 def unit @unit end |
#value ⇒ Object
Returns the value of attribute value.
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# File 'lib/mqtt/homie/property.rb', line 8 def value @value end |
Instance Method Details
#device ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 65 def device node.device end |
#full_name ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 61 def full_name "#{node.full_name} #{name}" end |
#inspect ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 47 def inspect result = +"#<MQTT::Homie::Property #{topic} name=#{full_name.inspect}, datatype=#{datatype.inspect}" result << ", format=#{format.inspect}" if format result << ", unit=#{unit.inspect}" if unit result << ", settable=true" if settable? result << if retained? ", value=#{value.inspect}" else ", retained=false" end result << ">" result.freeze end |
#mqtt ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 178 def mqtt node.mqtt end |
#publish ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 186 def publish return if published? mqtt.batch_publish do mqtt.publish("#{topic}/$name", name, retain: true, qos: 1) mqtt.publish("#{topic}/$datatype", datatype.to_s, retain: true, qos: 1) mqtt.publish("#{topic}/$format", format, retain: true, qos: 1) if format mqtt.publish("#{topic}/$settable", "true", retain: true, qos: 1) if settable? mqtt.publish("#{topic}/$retained", "false", retain: true, qos: 1) unless retained? mqtt.publish("#{topic}/$unit", unit, retain: true, qos: 1) if unit publish_value unless value.nil? subscribe end @published = true end |
#published? ⇒ Boolean
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# File 'lib/mqtt/homie/property.rb', line 182 def published? @published end |
#range ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 126 def range return nil unless format case datatype when :enum then format.split(",") when :integer then Range.new(*format.split(":").map(&:to_i)) when :float then Range.new(*format.split(":").map(&:to_f)) else; raise MethodNotImplemented end end |
#retained? ⇒ Boolean
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# File 'lib/mqtt/homie/property.rb', line 73 def retained? @retained end |
#set(value) ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 137 def set(value) casted_value = case datatype when :boolean %w[true false].include?(value) ? value == "true" : nil when :integer /^-?\d+$/.match?(value) && value.to_i when :float /^-?(?:\d+|\d+\.|\.\d+|\d+\.\d+)(?:[eE]-?\d+)?$/.match?(value) && value.to_f when :enum value when :color /^\d{1,3},\d{1,3},\d{1,3}$/.match?(value) && value = value.split(",").map(&:to_i) when :datetime begin value = Time.parse(value) rescue ArgumentError nil end when :duration begin value = ActiveSupport::Duration.parse(value) rescue ActiveSupport::Duration::ISO8601Parser::ParsingError nil end end case datatype when :integer, :float casted_value = nil if format && !range.cover?(casted_value) when :enum casted_value = nil if format && !range.include?(casted_value) when :color casted_value = nil if (format == "rgb" && value.max > 255) || (format == "hsb" && (value.first > 360 || value[1..2].max > 100)) end casted_value = @non_standard_value_check&.call(value) if casted_value.nil? return if casted_value.nil? @block.arity == 2 ? @block.call(casted_value, self) : @block.call(casted_value) end |
#settable? ⇒ Boolean
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# File 'lib/mqtt/homie/property.rb', line 77 def settable? !!@block end |
#subscribe ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 203 def subscribe mqtt.subscribe("#{topic}/set") if settable? end |
#topic ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 69 def topic "#{node.topic}/#{id}" end |
#unpublish ⇒ Object
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# File 'lib/mqtt/homie/property.rb', line 207 def unpublish return unless published? @published = false mqtt.publish("#{topic}/$name", retain: true, qos: 0) mqtt.publish("#{topic}/$datatype", retain: true, qos: 0) mqtt.publish("#{topic}/$format", retain: true, qos: 0) if format mqtt.publish("#{topic}/$settable", retain: true, qos: 0) if settable? mqtt.publish("#{topic}/$retained", retain: true, qos: 0) unless retained? mqtt.publish("#{topic}/$unit", retain: true, qos: 0) if unit mqtt.unsubscribe("#{topic}/set") if settable? mqtt.publish(topic, retain: retained?, qos: 0) if !value.nil? && retained? end |