text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  '''
  Copyright (c) 2013 Qin Xuye <qin@qinxuye.me>
  
  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.
  
  Created on 2013-5-28
  
  @author: Chine
  '''
  
  from cola.core.mq.hash_ring import HashRing
  from cola.core.mq import MessageQueue
  
  class MessageQueueClient(object):
      
      def __init__(self, nodes, copies=1):
          self.nodes = nodes
          self.hash_ring = HashRing(self.nodes)
          self.copies = max(min(len(self.nodes)-1, copies), 0)
          self.mq = MessageQueue(nodes, copies=copies)
          
      def put(self, objs):
          self.mq.put(objs)
          
      def get(self):
          for n in self.nodes:
              obj = self.mq._get(n)
              if obj is not None:
                  return obj