| #-- |
| # 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. |
| #++ |
| |
| module Qpid::Proton::Event |
| |
| # @private |
| def self.dispatch(handler, method, *args) |
| args = args.last unless args.nil? |
| if handler.respond_to? method.to_sym |
| return handler.__send__(method, args) |
| elsif handler.respond_to? :on_unhandled |
| return handler.__send__(:on_unhandled, method, args) |
| end |
| end |
| |
| # EventBase is the foundation for creating application-specific events. |
| # |
| # @example |
| # |
| # # SCENARIO: A continuation of the example in EventType. |
| # # |
| # # An Event class is defined to handle receiving encrypted |
| # # data from a remote endpoint. |
| # |
| # class EncryptedDataEvent < EventBase |
| # def initialize(message) |
| # super(EncryptedDataEvent, message, |
| # Qpid::Proton::Event::ENCRYPTED_RECV) |
| # end |
| # end |
| # |
| # # at another point, when encrypted data is received |
| # msg = Qpid::Proton::Message.new |
| # msg.decode(link.receive(link.pending)) |
| # if encrypted?(msg) |
| # collector.put(EncryptedDataEvent.new(msg) |
| # end |
| # |
| # @see EventType The EventType class for how ENCRYPTED_RECV was defined. |
| # |
| class EventBase |
| |
| # Returns the name for the class associated with this event. |
| attr_reader :class_name |
| |
| # Returns the associated context object for the event. |
| attr_reader :context |
| |
| # Returns the type of the event. |
| attr_reader :type |
| |
| # Creates a new event with the specific class_name and context of the |
| # specified type. |
| # |
| # @param class_name [String] The name of the class. |
| # @param context [Object] The event context. |
| # @param type [EventType] The event type. |
| # |
| def initialize(class_name, context, type) |
| @class_name = class_name |
| @context = context |
| @type = type |
| end |
| |
| # Invokes the type-specific method on the provided handler. |
| # |
| # @param handler [Object] The handler to be notified of this event. |
| # |
| def dispatch(handler) |
| Qpid::Proton.dispatch(handler, @type.method, self) |
| end |
| |
| end |
| |
| end |