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'''
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'''
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Copyright (c) 2010-2012, Contrail consortium.
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Copyright (c) 2010-2012, Contrail consortium.
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All rights reserved.
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All rights reserved.
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Redistribution and use in source and binary forms,
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Redistribution and use in source and binary forms,
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with or without modification, are permitted provided
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with or without modification, are permitted provided
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that the following conditions are met:
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that the following conditions are met:
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 1. Redistributions of source code must retain the
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 1. Redistributions of source code must retain the
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    above copyright notice, this list of conditions
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    above copyright notice, this list of conditions
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    and the following disclaimer.
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    and the following disclaimer.
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 2. Redistributions in binary form must reproduce
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 2. Redistributions in binary form must reproduce
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    the above copyright notice, this list of
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    the above copyright notice, this list of
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    conditions and the following disclaimer in the
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    conditions and the following disclaimer in the
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    documentation and/or other materials provided
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    documentation and/or other materials provided
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    with the distribution.
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    with the distribution.
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 3. Neither the name of the <ORGANIZATION> nor the
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 3. Neither the name of the Contrail consortium nor the
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    names of its contributors may be used to endorse
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    names of its contributors may be used to endorse
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    or promote products derived from this software
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    or promote products derived from this software
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    without specific prior written permission.
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    without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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POSSIBILITY OF SUCH DAMAGE.
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Created on Mar 9, 2011
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Created on Mar 9, 2011
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@package conpaas.core
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@package conpaas.core
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@author: ielhelw
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@author: ielhelw
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@file
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@file
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'''
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'''
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'''
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'''
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    This class represents the abstraction of a node.
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    This class represents the abstraction of a node.
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    A basic node is represented by a vmid and an ip
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    A basic node is represented by a vmid and an ip
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    address. This class can be extented with more
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    address. This class can be extented with more
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    information about the node, specific to each
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    information about the node, specific to each
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    service.
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    service.
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'''
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'''
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class ServiceNode(object):
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class ServiceNode(object):
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  def __init__(self, vmid, ip, cloud_name):
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  def __init__(self, vmid, ip, cloud_name):
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      self.vmid = vmid
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      self.vmid = vmid
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      self.ip = ip
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      self.ip = ip
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      self.cloud_name = cloud_name
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      self.cloud_name = cloud_name
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  def __repr__(self):
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  def __repr__(self):
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      return 'ServiceNode(vmid=%s, ip=%s)' % (str(self.vmid), self.ip)
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      return 'ServiceNode(vmid=%s, ip=%s)' % (str(self.vmid), self.ip)
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  def __cmp__(self, other):
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  def __cmp__(self, other):
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      if self.vmid == other.vmid and \
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      if self.vmid == other.vmid and \
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      self.cloud_name == other.cloud_name:
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      self.cloud_name == other.cloud_name:
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          return 0
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          return 0
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      elif self.vmid < other.vmid: return -1
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      elif self.vmid < other.vmid: return -1
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      else: return 1
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      else: return 1