| # |
| # 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. |
| # |
| |
| require 'cqpid' |
| |
| module Qpid |
| |
| module Messaging |
| |
| # A Duration represents a period of time in milliseconds |
| # |
| # It defines the following named values as symbols: |
| # |
| # [:FOREVER] |
| # The maximum integer value for the platform. Effectively this will wait |
| # forever. |
| # |
| # [:IMMEDIATE] |
| # An alias for 0 milliseconds. |
| # |
| # [:SECOND] |
| # An alias for 1,000 milliseconds. |
| # |
| # [:MINUTE] |
| # And alias for 60,000 millisecons. |
| # |
| class Duration |
| |
| # Creates a Duration with the specified length, in milliseconds. |
| # |
| # ==== Options |
| # |
| # * length - The duration in milliseconds. |
| # |
| # ==== Examples |
| # |
| # # Wait up to 10 seconds for an incoming message |
| # receiver.get Qpid::Messaging::Duration.new 10000 |
| # |
| def initialize length |
| @duration_impl = Cqpid::Duration.new length |
| end |
| |
| def duration_impl # :nodoc: |
| @duration_impl |
| end |
| |
| # Returns the period of time in milliseconds |
| # |
| # ==== Examples |
| # |
| # duration = Qpid::Messaging::Duration.new :length => 5000 |
| # puts "Waiting #{duration.milliseconds} ms for a message." |
| # msg = receiver.fetch duration |
| # |
| def milliseconds |
| @duration_impl.getMilliseconds |
| end |
| |
| def self.add_item(key, value) # :nodoc: |
| @hash ||= {} |
| @hash[key] = Duration.new value |
| end |
| |
| def self.const_missing(key) # :nodoc: |
| @hash[key] |
| end |
| |
| self.add_item :FOREVER, Cqpid::Duration.FOREVER.getMilliseconds |
| self.add_item :IMMEDIATE, Cqpid::Duration.IMMEDIATE.getMilliseconds |
| self.add_item :SECOND, Cqpid::Duration.SECOND.getMilliseconds |
| self.add_item :MINUTE, Cqpid::Duration.MINUTE.getMilliseconds |
| |
| end |
| |
| end |
| |
| end |
| |