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#
# Defines ParserWriterChooseMixin, which makes it possible to choose a
# different XML writer and/or XML parser then the default one.
# The Mixin is used in client.rb (class Client) and server.rb (class
# BasicServer)
#
# Copyright (C) 2001, 2002, 2003 by Michael Neumann (mneumann@ntecs.de)
#
# $Id$
#
module XMLRPC
#
# This module enables a user-class to be marshalled
# by XML-RPC for Ruby into a Hash, with one additional
# key/value pair "___class___" => ClassName
#
module Marshallable
end
module ParserWriterChooseMixin
def set_writer(writer)
@create = Create.new(writer)
self
end
def set_parser(parser)
@parser = parser
self
end
private
def create
# if set_writer was not already called then call it now
if @create.nil? then
set_writer(Config::DEFAULT_WRITER.new)
end
@create
end
def parser
# if set_parser was not already called then call it now
if @parser.nil? then
set_parser(Config::DEFAULT_PARSER.new)
end
@parser
end
end # module ParserWriterChooseMixin
module Service
#
# base class for Service Interface definitions, used
# by BasicServer#add_handler
#
class BasicInterface
attr_reader :prefix, :methods
def initialize(prefix)
@prefix = prefix
@methods = []
end
def add_method(sig, help=nil, meth_name=nil)
mname = nil
sig = [sig] if sig.kind_of? String
sig = sig.collect do |s|
name, si = parse_sig(s)
raise "Wrong signatures!" if mname != nil and name != mname
mname = name
si
end
@methods << [mname, meth_name || mname, sig, help]
end
private # ---------------------------------
def parse_sig(sig)
# sig is a String
if sig =~ /^\s*(\w+)\s+([^(]+)(\(([^)]*)\))?\s*$/
params = [$1]
name = $2.strip
$4.split(",").each {|i| params << i.strip} if $4 != nil
return name, params
else
raise "Syntax error in signature"
end
end
end # class BasicInterface
#
# class which wraps a Service Interface definition, used
# by BasicServer#add_handler
#
class Interface < BasicInterface
def initialize(prefix, &p)
raise "No interface specified" if p.nil?
super(prefix)
instance_eval(&p)
end
def get_methods(obj, delim=".")
prefix = @prefix + delim
@methods.collect { |name, meth, sig, help|
[prefix + name, obj.method(meth).to_proc, sig, help]
}
end
private # ---------------------------------
def meth(*a)
add_method(*a)
end
end # class Interface
class PublicInstanceMethodsInterface < BasicInterface
def initialize(prefix)
super(prefix)
end
def get_methods(obj, delim=".")
prefix = @prefix + delim
obj.class.public_instance_methods(false).collect { |name|
[prefix + name, obj.method(name).to_proc, nil, nil]
}
end
end
end # module Service
#
# short-form to create a Service::Interface
#
def self.interface(prefix, &p)
Service::Interface.new(prefix, &p)
end
# short-cut for creating a PublicInstanceMethodsInterface
def self.iPIMethods(prefix)
Service::PublicInstanceMethodsInterface.new(prefix)
end
module ParseContentType
def parse_content_type(str)
a, *b = str.split(";")
return a.strip, *b
end
end
end # module XMLRPC
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