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# Copyright (c) 2015 The Johns Hopkins University/Applied Physics Laboratory
# All Rights Reserved.
#
# 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.
from six.moves import xrange
from kmip.core.enums import Tags
from kmip.core.messages.contents import ProtocolVersion
from kmip.core.primitives import Struct
from kmip.core.utils import BytearrayStream
class DiscoverVersionsRequestPayload(Struct):
def __init__(self, protocol_versions=None):
super(DiscoverVersionsRequestPayload, self).__init__(
Tags.REQUEST_PAYLOAD)
if protocol_versions is None:
self.protocol_versions = list()
else:
self.protocol_versions = protocol_versions
self.validate()
def read(self, istream):
super(DiscoverVersionsRequestPayload, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
while(self.is_tag_next(Tags.PROTOCOL_VERSION, tstream)):
protocol_version = ProtocolVersion()
protocol_version.read(tstream)
self.protocol_versions.append(protocol_version)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
for protocol_version in self.protocol_versions:
protocol_version.write(tstream)
self.length = tstream.length()
super(DiscoverVersionsRequestPayload, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
if isinstance(self.protocol_versions, list):
for i in xrange(len(self.protocol_versions)):
protocol_version = self.protocol_versions[i]
if not isinstance(protocol_version, ProtocolVersion):
msg = "invalid protocol version ({0} in list)".format(i)
msg += "; expected {0}, received {1}".format(
ProtocolVersion, protocol_version)
raise TypeError(msg)
else:
msg = "invalid protocol versions list"
msg += "; expected {0}, received {1}".format(
list, self.protocol_versions)
raise TypeError(msg)
class DiscoverVersionsResponsePayload(Struct):
def __init__(self, protocol_versions=None):
super(DiscoverVersionsResponsePayload, self).__init__(
Tags.RESPONSE_PAYLOAD)
if protocol_versions is None:
self.protocol_versions = list()
else:
self.protocol_versions = protocol_versions
self.validate()
def read(self, istream):
super(DiscoverVersionsResponsePayload, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
while(self.is_tag_next(Tags.PROTOCOL_VERSION, tstream)):
protocol_version = ProtocolVersion()
protocol_version.read(tstream)
self.protocol_versions.append(protocol_version)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
for protocol_version in self.protocol_versions:
protocol_version.write(tstream)
self.length = tstream.length()
super(DiscoverVersionsResponsePayload, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
if isinstance(self.protocol_versions, list):
for i in xrange(len(self.protocol_versions)):
protocol_version = self.protocol_versions[i]
if not isinstance(protocol_version, ProtocolVersion):
msg = "invalid protocol version ({0} in list)".format(i)
msg += "; expected {0}, received {1}".format(
ProtocolVersion, protocol_version)
raise TypeError(msg)
else:
msg = "invalid protocol versions list"
msg += "; expected {0}, received {1}".format(
list, self.protocol_versions)
raise TypeError(msg)
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