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#
# 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
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