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# Checks whether one or more rule holds and is capable of executing results.
module Restfulie
module Client
module Mikyung
# Creates a conditional execution based on a description.
# Its rule is an array where its first element represents a rule name and second a lambda that returns true or false
# Its params are extra params that might be passed to the rule
# Example
# WhenCondition.new("when running", ["", lambda { |resource| resource.human.state=='running' }], "")
class WhenCondition
def initialize(description, rule, params)
@description = description
@results = []
@extra = []
@rule = rule
@params = params
end
# will execute the first attached result
def execute(resource, goal, mikyung)
@results.each do |result|
Restfulie::Common::Logger.logger.info("will '#{result.description}'")
return result.execute(resource, goal, mikyung)
end
end
# checks whether this step should execute for a specific resource
def should_run_for(resource, goal)
if @rule[1].arity == 2
rule_accepts = @rule[1].call(resource, @params)
else
rule_accepts = @rule[1].call(resource)
end
return false unless rule_accepts
!@extra.find do |condition|
!condition.should_run_for(resource, goal)
end
end
# adds an extra condition to this step
def and(condition)
@extra << condition
end
# adds an extra condition to this step
def but(condition)
@extra << condition
end
# adds an extra result to this step
def results_on(result)
@results << result
end
end
end
end
end
Version data entries
13 entries across 13 versions & 2 rubygems