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Size: 1.05 KB
Versions: 28
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Stored size: 1.05 KB
Contents
require_relative 'abstract_command_handler'
class GetInstanceFieldHandler < AbstractCommandHandler
def initialize
@required_parameters_count = 2
end
def process(command)
get_instance_field(command)
end
def get_instance_field(command)
begin
if command.payload.length != @required_parameters_count
raise ArgumentError.new "Instance field parameters mismatch"
end
merged_value = '@' + command.payload[1]
if command.payload[0].instance_variable_defined?(merged_value)
response = command.payload[0].instance_variable_get(merged_value)
else
raise "Instance field not defined"
end
return response
rescue NameError
fields = command.payload[0].instance_variables
message = "Field #{command.payload[1]} not found in object of class #{command.payload[0].class.name}. Available fields:\n"
fields.each { |field_iter| message += "#{field_iter}\n" }
raise Exception, message
rescue Exception => e
return e
end
end
end
Version data entries
28 entries across 14 versions & 1 rubygems