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https://github.com/OpenKMIP/PyKMIP.git
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f23dde88cf
This change adds request and response payloads for the Cancel operation. Unit test suites are included for both payloads. Both payloads can be imported directly from the payloads package.
309 lines
10 KiB
Python
309 lines
10 KiB
Python
# Copyright (c) 2017 The Johns Hopkins University/Applied Physics Laboratory
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import six
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from kmip import enums
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from kmip.core import primitives
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from kmip.core import utils
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class CancelRequestPayload(primitives.Struct):
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"""
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A request payload for the Cancel operation.
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Attributes:
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asynchronous_correlation_value: The unique ID, in bytes, of the
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operation to cancel.
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"""
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def __init__(self, asynchronous_correlation_value=None):
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"""
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Construct a Cancel request payload struct.
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Args:
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asynchronous_correlation_value (bytes): The ID of a pending
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operation to cancel, in bytes. Optional, defaults to None.
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"""
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super(CancelRequestPayload, self).__init__(
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enums.Tags.REQUEST_PAYLOAD
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)
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self._asynchronous_correlation_value = None
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self.asynchronous_correlation_value = asynchronous_correlation_value
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@property
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def asynchronous_correlation_value(self):
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if self._asynchronous_correlation_value:
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return self._asynchronous_correlation_value.value
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else:
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return None
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@asynchronous_correlation_value.setter
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def asynchronous_correlation_value(self, value):
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if value is None:
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self._asynchronous_correlation_value = None
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elif isinstance(value, six.binary_type):
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self._asynchronous_correlation_value = primitives.ByteString(
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value=value,
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tag=enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE
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)
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else:
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raise TypeError("Asynchronous correlation value must be bytes.")
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def read(self, input_stream):
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"""
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Read the data encoding the Cancel request payload and decode it into
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its constituent parts.
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Args:
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input_stream (stream): A data stream containing encoded object
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data, supporting a read method; usually a BytearrayStream
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object.
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Raises:
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ValueError: Raised if the data attribute is missing from the
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encoded payload.
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"""
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super(CancelRequestPayload, self).read(input_stream)
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local_stream = utils.BytearrayStream(input_stream.read(self.length))
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if self.is_tag_next(
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enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE,
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local_stream
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):
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self._asynchronous_correlation_value = primitives.ByteString(
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tag=enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE
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)
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self._asynchronous_correlation_value.read(local_stream)
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self.is_oversized(local_stream)
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def write(self, output_stream):
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"""
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Write the data encoding the Cancel request payload to a stream.
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Args:
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output_stream (stream): A data stream in which to encode object
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data, supporting a write method; usually a BytearrayStream
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object.
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Raises:
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ValueError: Raised if the data attribute is not defined.
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"""
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local_stream = utils.BytearrayStream()
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if self._asynchronous_correlation_value:
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self._asynchronous_correlation_value.write(local_stream)
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self.length = local_stream.length()
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super(CancelRequestPayload, self).write(output_stream)
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output_stream.write(local_stream.buffer)
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def __eq__(self, other):
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if isinstance(other, CancelRequestPayload):
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if self.asynchronous_correlation_value != \
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other.asynchronous_correlation_value:
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return False
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else:
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return True
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else:
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return NotImplemented
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def __ne__(self, other):
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if isinstance(other, CancelRequestPayload):
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return not (self == other)
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else:
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return NotImplemented
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def __repr__(self):
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args = "asynchronous_correlation_value={0}".format(
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self.asynchronous_correlation_value
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)
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return "CancelRequestPayload({0})".format(args)
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def __str__(self):
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return str({
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'asynchronous_correlation_value':
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self.asynchronous_correlation_value
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})
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class CancelResponsePayload(primitives.Struct):
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"""
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A response payload for the Cancel operation.
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Attributes:
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asynchronous_correlation_value: The unique ID, in bytes, of the
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operation that was cancelled.
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cancellation_result: The result of canceling the operation.
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"""
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def __init__(self,
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asynchronous_correlation_value=None,
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cancellation_result=None):
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"""
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Construct a Cancel response payload struct.
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Args:
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asynchronous_correlation_value (bytes): The ID of a pending
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operation that was cancelled, in bytes. Optional, defaults to
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None.
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cancellation_result (enum): A CancellationResult enumeration
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specifying the result of canceling the operation. Optional,
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defaults to None.
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"""
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super(CancelResponsePayload, self).__init__(
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enums.Tags.RESPONSE_PAYLOAD
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)
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self._asynchronous_correlation_value = None
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self._cancellation_result = None
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self.asynchronous_correlation_value = asynchronous_correlation_value
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self.cancellation_result = cancellation_result
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@property
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def asynchronous_correlation_value(self):
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if self._asynchronous_correlation_value:
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return self._asynchronous_correlation_value.value
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else:
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return None
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@asynchronous_correlation_value.setter
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def asynchronous_correlation_value(self, value):
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if value is None:
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self._asynchronous_correlation_value = None
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elif isinstance(value, six.binary_type):
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self._asynchronous_correlation_value = primitives.ByteString(
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value=value,
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tag=enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE
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)
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else:
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raise TypeError("Asynchronous correlation value must be bytes.")
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@property
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def cancellation_result(self):
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if self._cancellation_result:
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return self._cancellation_result.value
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else:
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return None
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@cancellation_result.setter
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def cancellation_result(self, value):
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if value is None:
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self._cancellation_result = None
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elif isinstance(value, enums.CancellationResult):
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self._cancellation_result = primitives.Enumeration(
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enums.CancellationResult,
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value=value,
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tag=enums.Tags.CANCELLATION_RESULT
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)
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else:
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raise TypeError(
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"Cancellation result must be a CancellationResult enumeration."
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)
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def read(self, input_stream):
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"""
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Read the data encoding the Cancel response payload and decode it into
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its constituent parts.
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Args:
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input_stream (stream): A data stream containing encoded object
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data, supporting a read method; usually a BytearrayStream
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object.
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Raises:
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ValueError: Raised if the data attribute is missing from the
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encoded payload.
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"""
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super(CancelResponsePayload, self).read(input_stream)
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local_stream = utils.BytearrayStream(input_stream.read(self.length))
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if self.is_tag_next(
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enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE,
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local_stream
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):
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self._asynchronous_correlation_value = primitives.ByteString(
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tag=enums.Tags.ASYNCHRONOUS_CORRELATION_VALUE
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)
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self._asynchronous_correlation_value.read(local_stream)
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if self.is_tag_next(enums.Tags.CANCELLATION_RESULT, local_stream):
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self._cancellation_result = primitives.Enumeration(
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enums.CancellationResult,
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tag=enums.Tags.CANCELLATION_RESULT
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)
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self._cancellation_result.read(local_stream)
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self.is_oversized(local_stream)
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def write(self, output_stream):
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"""
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Write the data encoding the Cancel response payload to a stream.
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Args:
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output_stream (stream): A data stream in which to encode object
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data, supporting a write method; usually a BytearrayStream
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object.
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Raises:
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ValueError: Raised if the data attribute is not defined.
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"""
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local_stream = utils.BytearrayStream()
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if self._asynchronous_correlation_value:
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self._asynchronous_correlation_value.write(local_stream)
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if self._cancellation_result:
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self._cancellation_result.write(local_stream)
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self.length = local_stream.length()
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super(CancelResponsePayload, self).write(output_stream)
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output_stream.write(local_stream.buffer)
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def __eq__(self, other):
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if isinstance(other, CancelResponsePayload):
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if self.asynchronous_correlation_value != \
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other.asynchronous_correlation_value:
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return False
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elif self.cancellation_result != other.cancellation_result:
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return False
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else:
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return True
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else:
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return NotImplemented
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def __ne__(self, other):
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if isinstance(other, CancelResponsePayload):
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return not (self == other)
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else:
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return NotImplemented
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def __repr__(self):
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args = ", ".join([
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"asynchronous_correlation_value={0}".format(
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self.asynchronous_correlation_value
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),
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"cancellation_result={0}".format(self.cancellation_result)
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])
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return "CancelResponsePayload({0})".format(args)
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def __str__(self):
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return str({
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'asynchronous_correlation_value':
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self.asynchronous_correlation_value,
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'cancellation_result': self.cancellation_result
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})
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