def _set_version(self, msg, vers):
"""Helper method to set the version in a message.
:param msg: The message having a version added to it.
:param vers: The version number to add to the message.
"""
v = vers if vers else self.default_version
if (self.version_cap
and not rpc_common.version_is_compatible(self.version_cap, v)):
raise rpc_common.RpcVersionCapError(version=self.version_cap)
msg['version'] = v
def block_device_mapping_get_all_by_instance(self, context, instance,
legacy=True):
instance_p = jsonutils.to_primitive(instance)
if self.can_send_version('1.51'):
version = '1.51'
msg = self.make_msg('block_device_mapping_get_all_by_instance',
instance=instance_p, legacy=legacy)
elif legacy:
# If the remote side is >= 1.51, it defaults to legacy=True.
# If it's older, it only understands the legacy format.
version = '1.13'
msg = self.make_msg('block_device_mapping_get_all_by_instance',
instance=instance_p)
else:
# If we require new style data, but can't ask for it, then we must
# fail here.
raise rpc_common.RpcVersionCapError(version_cap=self.version_cap)
return self.call(context, msg, version=version)
def block_device_mapping_get_all_by_instance(self, context, instance,
legacy=True):
instance_p = jsonutils.to_primitive(instance)
if self.client.can_send_version('1.51'):
version = '1.51'
kwargs = {'legacy': legacy}
elif legacy:
# If the remote side is >= 1.51, it defaults to legacy=True.
# If it's older, it only understands the legacy format.
version = '1.13'
kwargs = {}
else:
# If we require new style data, but can't ask for it, then we must
# fail here.
raise rpc_common.RpcVersionCapError(version_cap=self.version_cap)
cctxt = self.client.prepare(version=version)
return cctxt.call(context, 'block_device_mapping_get_all_by_instance',
instance=instance_p, **kwargs)
