Class: ServantConfigDb

Inherits:
Object
  • Object
show all
Defined in:
lib/belphanior/servant/servant_config_db.rb

Instance Method Summary collapse

Constructor Details

#initialize(json_string) ⇒ ServantConfigDb

Returns a new instance of ServantConfigDb.



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# File 'lib/belphanior/servant/servant_config_db.rb', line 11

def initialize(json_string)
  @config = JSON.parse(json_string)
  # validation: @config is a hash, keys are strings, vals are strings
  if (@config.class != {}.class)
    raise ServantConfigException, 
    "ServantConfig error: JSON string did not evaluate to an object",
    caller
  end
  @config.each{|key, value|
    if (value.class != "".class)
      raise ServantConfigException,
      ("ServantConfig error: JSON initialization string, "+
       "value for key '#{key}' is type '#{value.class}'"),
      caller
    end
  }
  @config.default ""
  @readonly = []
end

Instance Method Details

#get(key) ⇒ Object 



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# File 'lib/belphanior/servant/servant_config_db.rb', line 35

def get(key)
  @config[key]
end

#is_readonly(key) ⇒ Object 



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# File 'lib/belphanior/servant/servant_config_db.rb', line 50

def is_readonly(key)
  @readonly.include? key
end

#set(key, value) ⇒ Object 



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# File 'lib/belphanior/servant/servant_config_db.rb', line 39

def set(key, value)
  key = key.to_s
  value = value.to_s
  if @readonly.include? key
    raise ServantConfigException,
    "Attempted to change read-only property '#{key}'",
    caller
  end
  @config[key]=value
end

#set_readonly(key) ⇒ Object 



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# File 'lib/belphanior/servant/servant_config_db.rb', line 54

def set_readonly(key)
  @readonly << key
end

#to_json ⇒ Object 



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# File 'lib/belphanior/servant/servant_config_db.rb', line 31

def to_json
  JSON.dump(@config)
end