Module: StackMate::Intrinsic

Included in:
CloudStackOutput
Defined in:
lib/stackmate/intrinsic_functions.rb

Instance Method Summary collapse

Instance Method Details

#fn_getatt(array_value, workitem) ⇒ Object 



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# File 'lib/stackmate/intrinsic_functions.rb', line 38

def fn_getatt(array_value, workitem)
    resource = array_value[0]
    attribute = array_value[1]
    #logger.debug "Intrinsic: fn_getatt  resource= #{resource} attrib = #{attribute} wi[Resource] = #{workitem[resource]}"
    workitem[resource][attribute]
end

#fn_join(value, workitem) ⇒ Object 



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# File 'lib/stackmate/intrinsic_functions.rb', line 20

def fn_join(value, workitem)
    delim = value[0]
    v = value[1]
    #logger.debug "Intrinsic: fn_join  value = #{v}"
    result = ''
    first_ = true
    v.each do |token|
        case token
        when String
            result = result + (first_ ? "" : delim) + token 
        when Hash
            result = result + (first_ ? "" : delim) + intrinsic(token, workitem)
        end
        first_ = false
    end
    result
end

#fn_ref(value, workitem) ⇒ Object 



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# File 'lib/stackmate/intrinsic_functions.rb', line 52

def fn_ref(value, workitem)
    #logger.debug "Intrinsic: fn_ref  value = #{value}"
    workitem[value]['physical_id'] #TODO only works with Resources not Params
end

#fn_select(array_value) ⇒ Object 



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# File 'lib/stackmate/intrinsic_functions.rb', line 45

def fn_select(array_value)
    index = array_value[0].to_i #TODO unsafe
    values = array_value[1]
    #logger.debug "Intrinsic: fn_select  index= #{index} values = #{values.inspect}"
    values[index]
end

#intrinsic(hash, workitem) ⇒ Object 



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# File 'lib/stackmate/intrinsic_functions.rb', line 4

def intrinsic (hash, workitem) 
    key =  hash.keys[0]
    value = hash[key]
    #logger.debug "Intrinsic: key = #{key}, value = #{value}"
    case key
    when 'Fn::Join'
        fn_join(value, workitem)
    when 'Fn::GetAtt'
        fn_getatt(value, workitem)
    when 'Fn::Select'
        fn_select(value)
    when 'Ref'
        fn_ref(value, workitem)
    end
end