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#
#
# Base class for custodian protocol-tests
#
# Each subclass will register themselves, via the call
# to 'register_test_type'.
#
# This class is a factory that will return the correct
# derived class for a given line from our configuration
# file.
#
#
module Custodian
class TestFactory
#
# The subclasses we have.
#
@@subclasses = { }
#
# Create a test-type object given a line of text from our parser.
#
# The line will be like "target must run tcp|ssh|ftp|smtp .."
#
#
def self.create( line )
raise ArgumentError, "The type of test to create cannot be nil" if ( line.nil? )
raise ArgumentError, "The type of test to create must be a string" unless ( line.kind_of? String )
#
# If this is an obvious protocol test.
#
if ( line =~ /must\s+(not\s+)?run\s+(\S+)(\s+|\.|$)/ )
test_type = $2.dup
test_type.chomp!( "." )
c = @@subclasses[test_type]
if c
c.new( line )
else
raise ArgumentError, "Bad test type: '#{test_type}'"
end
else
raise "Unknown line given - Failed to instantiate a suitable protocol-test: '#{line}'"
end
end
#
# Register a new test type - this must be called by our derived classes
#
def self.register_test_type name
@@subclasses[name] = self
end
#
# Return an array of test-types we know about
#
# i.e. Derived classes that have registered themselves.
#
#
def self.known_tests
@@subclasses
end
#
# Get the friendly-type of this class
#
def get_type
@@subclasses.each do |name,value|
if ( value == self.class )
return name
end
end
nil
end
#
# Return the target of this test.
#
def target
@host
end
#
# Is this test inverted?
#
def inverted
@inverted
end
#
# Return the port of this test.
#
def port
@port
end
end
end
|
