################################################################################
#  Copyright 2006 J. Reid Morrison. Dimension Solutions, Inc.
#
#  Licensed 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.
################################################################################

#
# Sample : get() : Retrieve a single message from a queue
#          If no messages are on the queue, message.data is nil
#
# The Client connection is determined by the :connection_name parameter supplied
# to QueueManager::connect or QueueManager::new
#
# If :connection_name is not present, a WebSphere MQ Server connection will be used
# I.e. Local server connection
#
require 'wmq/wmq'

WMQ::QueueManager.connect(
            :connection_name => 'localhost(1414)',        # Use MQ Client Library
            :channel_name    => 'SYSTEM.DEF.SVRCONN',     # Optional, since this is the default value
            :transport_type  => WMQ::MQXPT_TCP            # Optional, since this is the default value
       ) do |qmgr|
  qmgr.open_queue(:q_name=>'TEST.QUEUE', :mode=>:input) do |queue|

    message = WMQ::Message.new
    if queue.get(:message => message)
      puts "Data Received: #{message.data}"
      
      puts "Message Descriptor:"
      p message.descriptor
      
      puts "Headers Received:"
      message.headers.each {|header| p header}
    else
      puts 'No message available'
    end
  end
end