| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| |
| class Qpid::Invoker |
| |
| # Requires that client defines a invoke method and overrides |
| # resolve_method |
| |
| # FIXME: Is it really worth defining methods in method_missing ? We |
| # could just dispatch there directly |
| |
| def invc_method(name, resolved) |
| define_singleton_method(name) { |*args| invoke(resolved, args) } |
| # FIXME: the Python code also attaches docs from resolved.pydoc |
| end |
| |
| def invc_value(name, resolved) |
| define_singleton_method(name) { | | resolved } |
| end |
| |
| def invc_error(name, resolved) |
| msg = "%s instance has no attribute '%s'" % [self.class.name, name] |
| if resolved |
| msg += "\n%s" % resolved |
| end |
| raise NameError, msg |
| end |
| |
| def resolve_method(name) |
| invocation(:error, nil) |
| end |
| |
| def method_missing(name, *args) |
| disp, resolved = resolve_method(name) |
| disp.call(name, resolved) |
| send(name, *args) |
| end |
| |
| def invocation(kind, name = nil) |
| [ method("invc_#{kind}"), name ] |
| end |
| |
| private |
| def define_singleton_method(name, &body) |
| singleton_class = class << self; self; end |
| singleton_class.send(:define_method, name, &body) |
| end |
| |
| end |