Class: MonitorType_Threshold

Inherits:
MonitorType show all
Defined in:
lib/MonitorType/Threshold.rb

Overview

A base class for checking a number against a min and/or max value

Instance Method Summary collapse

Methods inherited from MonitorType

#alert, #extractParams, #run, #setup, #teardown

Constructor Details

#initialize(params) ⇒ MonitorType_Threshold

See super method for generic description



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# File 'lib/MonitorType/Threshold.rb', line 6

def initialize( params )
       @min = params[:min] ||= 0
       @max = params[:max]
  super( params )
end

Instance Method Details

#check(value) ⇒ Object

Provides the means to check a value against thresholds



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# File 'lib/MonitorType/Threshold.rb', line 30

def check( value )
       context_sentence = ""
       if !@context_sentence.nil? then
           context_sentence = "#{@context_sentence}\n"
       end

       value = value.to_i
       if !@min.nil? && value < @min then
           self.alert( "#{context_sentence}Minimum threshold exceeded. Minimum: #{@min}, Actual: #{value}" )
       end
       if !@max.nil? && value > @max then
           self.alert( "#{context_sentence}Maximum threshold exceeded. Maximum: #{@max}, Actual: #{value}" )
       end
       
end

#getValue ⇒ Object

Get the context dependent value which is to be checked



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# File 'lib/MonitorType/Threshold.rb', line 13

def getValue
    raise "Method needs to be overridden"
end

#process ⇒ Object 



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# File 'lib/MonitorType/Threshold.rb', line 17

def process
    if @block.nil? then
        value = self.getValue
        else
        value = @block.call( @params )
        string = "value: #{value}\n"
        puts string
    end

    self.check( value )
end