Class: SAAL::Envoy::PowerEnergy

Inherits:
Object
  • Object
show all
Defined in:
lib/envoy.rb

Constant Summary collapse

DEFAULT_HOST = 
"envoy.local"
DEFAULT_TOKEN = 
""
DEFAULT_TIMEOUT = 
2
DEFAULT_CACHE_TIMEOUT = 
5
DEFAULT_SOURCES = 
[
  "production_inverters",
  "production_phase1", "production_phase2", "production_phase3", "production_total",
  "net_consumption_phase1", "net_consumption_phase2", "net_consumption_phase3", "net_consumption_total",
  "total_consumption_phase1", "total_consumption_phase2", "total_consumption_phase3", "total_consumption_total",
]
DEFAULT_TYPES = 
[
  "w_now", "wh_lifetime", "va_now", "vah_lifetime",
]
DEFAULT_PREFIX = 
"pv"

Instance Method Summary collapse

Constructor Details

#initialize(defs, opts = {}) ⇒ PowerEnergy

Returns a new instance of PowerEnergy.



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# File 'lib/envoy.rb', line 32

def initialize(defs, opts={})
  @host = defs[:host] || defs['host'] || DEFAULT_HOST
  @token = defs[:token] || defs['token'] || DEFAULT_TOKEN
  @timeout = opts[:timeout] || opts['timeout'] || DEFAULT_TIMEOUT
  @cache_timeout = opts[:cache_timeout] || opts['cache_timeout'] || DEFAULT_CACHE_TIMEOUT
  @cache = nil
  @cachetime = nil
  @sources = defs[:sources] || defs['source'] || DEFAULT_SOURCES
  @types = defs[:types] || defs['types'] || DEFAULT_TYPES
  @prefix = defs[:prefix] || defs['prefix'] || DEFAULT_PREFIX
end

Instance Method Details

#create_sensors ⇒ Object 



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# File 'lib/envoy.rb', line 52

def create_sensors
  sensors = {}
  @sources.product(@types).each do |source, type|
    key = "#{@prefix}_#{source}_#{type}"
    sensors[key] = PowerEnergyUnderlying.new(key, self)
  end
  sensors
end

#read_val(name) ⇒ Object 



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# File 'lib/envoy.rb', line 44

def read_val(name)
  if !@cachetime or @cachetime < Time.now - @cache_timeout
    @cache = read_all()
    @cachetime = Time.now
  end
  return @cache ? @cache[name] : nil
end