| #-- |
| # 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::Handler |
| |
| # A general purpose handler that simplifies processing events. |
| # |
| # @example |
| # |
| class MessagingHandler < Qpid::Proton::BaseHandler |
| |
| attr_reader :handlers |
| |
| # Creates a new instance. |
| # |
| # @param [Fixnum] prefetch |
| # @param [Boolean] auto_accept |
| # @param [Boolean] auto_settle |
| # @param [Boolean] peer_close_is_error |
| # |
| def initialize(prefetch = 10, auto_accept = true, auto_settle = true, peer_close_is_error = false) |
| @handlers = Array.new |
| @handlers << CFlowController.new(prefetch) unless prefetch.zero? |
| @handlers << EndpointStateHandler.new(peer_close_is_error, self) |
| @handlers << IncomingMessageHandler.new(auto_accept, self) |
| @handlers << OutgoingMessageHandler.new(auto_settle,self) |
| end |
| |
| # Called when the peer closes the connection with an error condition. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_connection_error(event) |
| EndpointStateHandler.print_error(event.connection, "connection") |
| end |
| |
| # Called when the peer closes the session with an error condition. |
| # |
| # @param event [Qpid:Proton::Event::Event] The event. |
| # |
| def on_session_error(event) |
| EndpointStateHandler.print_error(event.session, "session") |
| event.connection.close |
| end |
| |
| # Called when the peer closes the link with an error condition. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_link_error(event) |
| EndpointStateHandler.print_error(event.link, "link") |
| event.connection.close |
| end |
| |
| # Called when the event loop starts. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_reactor_init(event) |
| self.on_start(event) |
| end |
| |
| # Called when the event loop starts. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_start(event) |
| end |
| |
| # Called when the connection is closed. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_connection_closed(event) |
| end |
| |
| # Called when the session is closed. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_session_closed(event) |
| end |
| |
| # Called when the link is closed. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_link_closed(event) |
| end |
| |
| # Called when the peer initiates the closing of the connection. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_connection_closing(event) |
| end |
| |
| # Called when the peer initiates the closing of the session. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_session_closing(event) |
| end |
| |
| # Called when the peer initiates the closing of the link. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_link_closing(event) |
| end |
| |
| # Called when the socket is disconnected. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_disconnected(event) |
| end |
| |
| # Called when the sender link has credit and messages can therefore |
| # be transferred. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_sendable(event) |
| end |
| |
| # Called when the remote peer accepts an outgoing message. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_accepted(event) |
| end |
| |
| # Called when the remote peer rejects an outgoing message. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_rejected(event) |
| end |
| |
| # Called when the remote peer releases an outgoing message. |
| # |
| # Note that this may be in response to either the RELEASE or |
| # MODIFIED state as defined by the AMPQ specification. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_released(event) |
| end |
| |
| # Called when the remote peer has settled hte outgoing message. |
| # |
| # This is the point at which it should never be retransmitted. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_settled(event) |
| end |
| |
| # Called when a message is received. |
| # |
| # The message itself can be obtained as a property on the event. For |
| # the purpose of referring to this message in further actions, such as |
| # explicitly accepting it) the delivery should be used. This is also |
| # obtainable vi a property on the event. |
| # |
| # This method needs to be overridden. |
| # |
| # @param event [Qpid::Proton::Event::Event] The event. |
| # |
| def on_message(event) |
| end |
| |
| end |
| |
| end |