savu.plugins.driver.cpu_iterative_plugin.CpuIterativePlugin.__set_original_datasets() - Code Metrics - Inspection of "Merge pull request #888 from DiamondLightSource/it..." - DiamondLightSource/Savu - Measure and Improve Code Quality continuously with Scrutinizer

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by Yousef

created 2022-03-01 13:52 UTC

CpuIterativePlugin.__set_original_datasets() A

↳ Parent: savu.plugins.driver.cpu_iterative_plugin

Complexity

Conditions

Size

Total Lines	7
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	3
nop	1
dl	0
loc	7
rs	10
c	0
b	0
f	0

# Copyright 2014 Diamond Light Source Ltd.
#
# 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.

"""
.. module:: cpu_iterative_plugin
   :platform: Unix
   :synopsis: Base class for all plugins which use a CPU on the target machine
   and have the ability to be iterative

.. moduleauthor:: Daniil Kazantsev & Yousef Moazzam <[email protected]>

"""

from savu.plugins.driver.plugin_driver import PluginDriver
from savu.plugins.driver.basic_driver import BasicDriver

import os
_base = BasicDriver if os.environ['savu_mode'] == 'basic' else PluginDriver


class CpuIterativePlugin(_base):

    def __init__(self):
        super(CpuIterativePlugin, self).__init__()
        # set any plugin that inherits from CpuIterativePluign to be iterative
        self._is_iterative = True
        # the current iteration: starts counting at 0 (zero-based)
        self._ip_iteration = 0
        # the number of iterations to perform: starts counting at 1 (one-based)
        # TODO: should this have a starting/default value of 1 rather than
        #  False, to signify that the default number of iterations is just 1?
        # self._ip_fixed_iterations = False
        self._ip_fixed_iterations = 3
        # a bool describing if all iterations have been completed
        self._ip_complete = False
        # The _ip_data_dict value eventually holds 3 keys:
        # - 'iterating'
        # - 0
        # - 1
        # The name of the 0 key refers to the 0th iteration, and the name of the
        # 1 key refers to the 1st iteration
        # The values of the 0 key is a list containing two lists (both with only
        # one element in them):
        # - a list contining the input NeXuS file
        # - a list containing the Data object used as an input AND output dataset
        # (depending on the iteration number) with the "original" backing file
        # (ie, NOT the "cloned" backing file)
        # The value of the 1 key is a list containing two lists (one containing
        # one element, one containing two elements):
        # - a list containing the input NeXuS file, and also the Data object
        #   with the "original" backing file
        # - a list containing the Data object with the "clone" backing file
        self._ip_data_dict = {}
        # The dict value of the 'iterating' key contains only one key-value
        # pair throughout all iterations:
        # - the key is the "original" Data object
        # - the value is the "cloned" Data object
        # TODO: figure out how the name of the backing files created is set (ie,
        #  where does the "iterative_ccpi_denoising" bit come from?)
        self._ip_data_dict['iterating'] = {}

        # similar to _ip_data_dict, but for the pattern of the original &
        # cloned datasets, depending on the current iteration number
        self._ip_pattern_dict = {}
        self._ip_pattern_dict['iterating'] = {}

    def setup_iterative_plugin(self):
        '''
        Run this method instead of the setup() method in the plugin, if the
        plugin is being run iteratively.

        Setup the cloned datasets only if the number of iterations is
        greater than 1 (so then the cloned dataset isn't unnecessarily defined
        for running just a single iteration).
        '''
        if self._ip_fixed_iterations and self._ip_fixed_iterations > 1:
            self.__set_original_datasets()
            # get the in and out datasets, like in IterativeCcpiDenosing.setup()
            in_dataset, out_dataset = self.get_original_datasets()

            # get the PluginData objcts, like in IterativeCcpiDenosing.setup()
            in_pData = self.parameters['plugin_in_datasets']
            out_pData = self.parameters['plugin_out_datasets']

            # set the pattern for the single input dataset
            in_pData[0].plugin_data_setup(self.parameters['pattern'], 'single')

            # Cloned datasets are at the end of the out_dataset list
            out_dataset[0].create_dataset(in_dataset[0])

            # What is a cloned dataset?
            # Since each dataset in Savu has its own backing hdf5 file, a dataset
            # cannot be used for input and output at the same time.  So, in the
            # case of iterative plugins, if a dataset is used as output and then
            # as input on the next iteration, the subsequent output must be a
            # different file.
            # A cloned dataset is a copy of another dataset but with a different
            # backing file.  It doesn't have a name, is not accessible as a dataset
            # in the framework and is only used in alternation with another
            # dataset to allow it to be used as both input and output
            # simultaneously.

            # This is a cloned dataset (of out_dataset[0])
            self.create_clone(out_dataset[1], out_dataset[0])

            # set the pattern for the PluginData objects associated with the two
            # ouptut datasets (original and clone)
            out_pData[0].plugin_data_setup(self.parameters['pattern'], 'single')
            out_pData[1].plugin_data_setup(self.parameters['pattern'], 'single')

            # set the input and output datasets for the first iteration
            self.set_iteration_datasets(0, [in_dataset[0]], [out_dataset[0]],
                                        self.parameters['pattern'])
            # set the input and output datasets for subsequent iterations
            self.set_iteration_datasets(1, [in_dataset[0], out_dataset[0]],
                                        [out_dataset[1]],
                                        self.parameters['pattern'])
            # out_dataset[0] and out_dataset[1] will continue to alternate for
            # all remaining iterations i.e. output becomes input and input becomes
            # output.

    def _run_plugin(self, exp, transport):

        '''
        Execute the iterative processing.
        '''
        # The docstring of this method in IterativePlugin is the following:
        #
        # Run the pre_process, process, and post_process methods.
        #
        # However, there is no obvious point where those methods are called,
        # so perhaps this docstring isn't quite accurate? (Also note that this
        # sentence has been copied from the docstring
        # BaseDriver._run_plugin_instances(), so maybe it is just a generic
        # description of what this method SHOULD do, but doesn't yet do,
        # in IterativePlugin)

        if self._ip_complete:
            self.__finalise_datasets()
            return
        else:
            print(f"Iteration {self._ip_iteration}...")
            self.__set_datasets()
            self._run_plugin_instances(transport, self.get_communicator())
            # transport.no_processing is related to the nTrans variable that
            # is seen in various places in the "transport layer"
            # TODO: figure out what nTrans is/means
            if transport.no_processing:
                self.set_processing_complete()

            # if self._ip_fixed_iterations has been set to something other
            # than its original value of False, and if the current iteration
            # (the one that has just been completed) is the LAST iteration,
            # then processing has been completed
            #
            # Note that _ip_iteration starts counting at 0,
            # but _ip_fixed_iterations starts counting at 1, so if you have
            # reached _ip_iteration=n, then this means that n+1 iterations
            # have been performed
            if self._ip_fixed_iterations and \
                    self._ip_iteration == self._ip_fixed_iterations - 1:
                self.set_processing_complete()
            self._ip_iteration += 1
            # start another iteration
            self._run_plugin(exp, transport)

    def create_clone(self, clone, data):
        clone.create_dataset(data)
        clone.data_info.set('clone', data.get_name())
        # alternate a dataset with its clone
        self.set_alternating_datasets(data, clone)

    def __set_datasets(self):

        '''
        Set the input and output datasets such that
        - the output dataset from the previous iteration is the input dataset of
          the current iteration that is about to be performed
        - the input dataset from the previous iteration is used to write the
          output of the current iteration that is about to be performed
        '''
        # TODO: perhaps the pattern should be changed here, to make use of
        #  the same logic that is being used to switch the original & cloned
        #  data?
        params = self.parameters
        # Only the 0th and 1st iterations are set in _ip_data_dicts, there is
        # NOT a key for every iteration in _ip_data_dict, hence this if/elif
        # block
        if self._ip_iteration in list(self._ip_data_dict.keys()):
            # If on the 0th or 1st iteration, set the in_datasets and
            # out_datasets according to the structure  defined in _ip_data_dict
            #
            # The body of this if statement is essentially a way to "set up" the
            # input and ouput datasets so that for iterations after the 0th and
            # 1st, the two datasets that are swapped between being used for
            # input or output (depending on the particular iteration) can be
            # swapped WITHOUT having to define a key-value pair in
            # _ip_data_dict for EVERY SINGLE ITERATION
            params['in_datasets'] = self._ip_data_dict[self._ip_iteration][0]
            params['out_datasets'] = self._ip_data_dict[self._ip_iteration][1]
        elif self._ip_iteration > 0:
            # If on an iteration greater than 1 (since the if statement catches
            # both iteration 0 and 1), then there is some (fiddly...) logic
            # here to essentially SWAP the out dataset from the previous
            # iteration with the in dataset of the previous iteration
            #
            # Practically speaking, this means that:
            # - the out dataset from the previous iteration is used as the input
            #   for the current iteration that is about to be performed
            # - the in dataset from the previous iteration is free to be used to
            #   write the output of the current iteration that is about to be
            #   performed
            p = [params['in_datasets'], params['out_datasets']]
            for s1, s2 in self._ip_data_dict['iterating'].items():
                a = [0, p[0].index(s1)] if s1 in p[0] else [1, p[1].index(s1)]
                b = [0, p[0].index(s2)] if s2 in p[0] else [1, p[1].index(s2)]
                p[a[0]][a[1]], p[b[0]][b[1]] = p[b[0]][b[1]], p[a[0]][a[1]]

    def set_alternating_datasets(self, d1, d2):
        names = [d1.get_name(), d2.get_name()]
        if not any([True if 'itr_clone' in i else False for i in names]):
            raise Exception('Alternating datasets must contain a clone.  These'
                            ' are found at the end of the out_datasets list')
        self._ip_data_dict['iterating'][d1] = d2

    def get_alternating_datasets(self):
        return self._ip_data_dict['iterating']

    def set_iteration_datasets(self, itr, in_data, out_data, pattern=None):
        self._ip_data_dict[itr] = [in_data, out_data]
        self._ip_pattern_dict[itr] = pattern

    def set_processing_complete(self):
        '''
        Signal that the final iteration has been executed.
        '''
        self._ip_complete = True

    def __finalise_datasets(self):

        '''
        Inspect the two Data objects that are used to contain the input and
        output data for iterations over the course of the iterative processing
        (input/output depending on which particular iteration was being done).

        Mark one of them as the "final dataset" to be added to the output
        NeXuS file, and mark the other as "obsolete/to be removed".

        The decision between which one is kept and which one is removed
        depends on which Data object contains the OUTPUT of the very last
        iteration.

        For an odd number of iterations, this is the "original" Data object.
        For an even number of iteration, this is the "clone" Data object.
        '''
        for s1, s2 in self._ip_data_dict['iterating'].items():
            name = s1.get_name()
            name = name if 'itr_clone' not in name else s2.get_name()
            final_dataset = s1 if s1 in self.parameters['out_datasets'] else s2
            obsolete = s1 if s1 is not final_dataset else s2
            obsolete.remove = True

            # switch names if necessary
            if final_dataset.get_name() != name:
                # If this is true, then the output dataset of the last
                # iteration is the clone Data object (hence, the mismatched
                # names).
                #
                # So then:
                # - obsolete = original
                # - final_dataset = clone
                #
                # which means that the CLONED dataset needs to be set in the
                # Experiment object (self.exp) as the "out data", but under
                # the name of the ORIGINAL dataset.
                # And also, the ORIGINAL dataset is set in the Experiment
                # object, but under the name of the CLONED/OBSOLETE dataset
                temp = obsolete
                self.exp.index['out_data'][name] = final_dataset
                self.exp.index['out_data'][s2.get_name()] = temp
                # One last thing to do in this case is to set the "name"
                # inside the Data object that final_result is set to.
                #
                # This is because, in this case, the CLONED dataset is in
                # final_result, and the "name" within the Data object will
                # be some value like "itr_0".
                #
                # However, the name within the Data object needs to be the
                # name of the ORIGINAL Data object in order for the creation
                # of the output NeXuS file to work.
                final_dataset._set_name(name)

    def __set_original_datasets(self):
        '''
        Utility function to make the (original) in dataset, and out dataset,
        easier to reference
        '''
        self.in_data = self.parameters['in_datasets']
        self.out_data = self.parameters['out_datasets']

    def get_original_datasets(self):
        '''
        Helper function to get the in and out datasets more easily.
        '''
        return self.in_data, self.out_data

1		# Copyright 2014 Diamond Light Source Ltd.
2		#
3		# Licensed under the Apache License, Version 2.0 (the "License");
4		# you may not use this file except in compliance with the License.
5		# You may obtain a copy of the License at
6		#
7		# http://www.apache.org/licenses/LICENSE-2.0
8		#
9		# Unless required by applicable law or agreed to in writing, software
10		# distributed under the License is distributed on an "AS IS" BASIS,
11		# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12		# See the License for the specific language governing permissions and
13		# limitations under the License.
14
15		"""
16		.. module:: cpu_iterative_plugin
17		:platform: Unix
18		:synopsis: Base class for all plugins which use a CPU on the target machine
19		and have the ability to be iterative
20
21		.. moduleauthor:: Daniil Kazantsev & Yousef Moazzam <[email protected]>
22
23		"""
24
25		from savu.plugins.driver.plugin_driver import PluginDriver
26		from savu.plugins.driver.basic_driver import BasicDriver
27
28		import os
29		_base = BasicDriver if os.environ['savu_mode'] == 'basic' else PluginDriver
30
31
32		class CpuIterativePlugin(_base):
33
34		def __init__(self):
35		super(CpuIterativePlugin, self).__init__()
36		# set any plugin that inherits from CpuIterativePluign to be iterative
37		self._is_iterative = True
38		# the current iteration: starts counting at 0 (zero-based)
39		self._ip_iteration = 0
40		# the number of iterations to perform: starts counting at 1 (one-based)
41		# TODO: should this have a starting/default value of 1 rather than
42		# False, to signify that the default number of iterations is just 1?
43		# self._ip_fixed_iterations = False
44		self._ip_fixed_iterations = 3
45		# a bool describing if all iterations have been completed
46		self._ip_complete = False
47		# The _ip_data_dict value eventually holds 3 keys:
48		# - 'iterating'
49		# - 0
50		# - 1
51		# The name of the 0 key refers to the 0th iteration, and the name of the
52		# 1 key refers to the 1st iteration
53		# The values of the 0 key is a list containing two lists (both with only
54		# one element in them):
55		# - a list contining the input NeXuS file
56		# - a list containing the Data object used as an input AND output dataset
57		# (depending on the iteration number) with the "original" backing file
58		# (ie, NOT the "cloned" backing file)
59		# The value of the 1 key is a list containing two lists (one containing
60		# one element, one containing two elements):
61		# - a list containing the input NeXuS file, and also the Data object
62		# with the "original" backing file
63		# - a list containing the Data object with the "clone" backing file
64		self._ip_data_dict = {}
65		# The dict value of the 'iterating' key contains only one key-value
66		# pair throughout all iterations:
67		# - the key is the "original" Data object
68		# - the value is the "cloned" Data object
69		# TODO: figure out how the name of the backing files created is set (ie,
70		# where does the "iterative_ccpi_denoising" bit come from?)
71		self._ip_data_dict['iterating'] = {}
72
73		# similar to _ip_data_dict, but for the pattern of the original &
74		# cloned datasets, depending on the current iteration number
75		self._ip_pattern_dict = {}
76		self._ip_pattern_dict['iterating'] = {}
77
78		def setup_iterative_plugin(self):
79		'''
80		Run this method instead of the setup() method in the plugin, if the
81		plugin is being run iteratively.
82
83		Setup the cloned datasets only if the number of iterations is
84		greater than 1 (so then the cloned dataset isn't unnecessarily defined
85		for running just a single iteration).
86		'''
87		if self._ip_fixed_iterations and self._ip_fixed_iterations > 1:
88		self.__set_original_datasets()
89		# get the in and out datasets, like in IterativeCcpiDenosing.setup()
90		in_dataset, out_dataset = self.get_original_datasets()
91
92		# get the PluginData objcts, like in IterativeCcpiDenosing.setup()
93		in_pData = self.parameters['plugin_in_datasets']
94		out_pData = self.parameters['plugin_out_datasets']
95
96		# set the pattern for the single input dataset
97		in_pData[0].plugin_data_setup(self.parameters['pattern'], 'single')
98
99		# Cloned datasets are at the end of the out_dataset list
100		out_dataset[0].create_dataset(in_dataset[0])
101
102		# What is a cloned dataset?
103		# Since each dataset in Savu has its own backing hdf5 file, a dataset
104		# cannot be used for input and output at the same time. So, in the
105		# case of iterative plugins, if a dataset is used as output and then
106		# as input on the next iteration, the subsequent output must be a
107		# different file.
108		# A cloned dataset is a copy of another dataset but with a different
109		# backing file. It doesn't have a name, is not accessible as a dataset
110		# in the framework and is only used in alternation with another
111		# dataset to allow it to be used as both input and output
112		# simultaneously.
113
114		# This is a cloned dataset (of out_dataset[0])
115		self.create_clone(out_dataset[1], out_dataset[0])
116
117		# set the pattern for the PluginData objects associated with the two
118		# ouptut datasets (original and clone)
119		out_pData[0].plugin_data_setup(self.parameters['pattern'], 'single')
120		out_pData[1].plugin_data_setup(self.parameters['pattern'], 'single')
121
122		# set the input and output datasets for the first iteration
123		self.set_iteration_datasets(0, [in_dataset[0]], [out_dataset[0]],
124		self.parameters['pattern'])
125		# set the input and output datasets for subsequent iterations
126		self.set_iteration_datasets(1, [in_dataset[0], out_dataset[0]],
127		[out_dataset[1]],
128		self.parameters['pattern'])
129		# out_dataset[0] and out_dataset[1] will continue to alternate for
130		# all remaining iterations i.e. output becomes input and input becomes
131		# output.
132
133	View Code Duplication	def _run_plugin(self, exp, transport):
		0 ignored issues – show Duplication introduced 2022-01-21 12:16 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
134		'''
135		Execute the iterative processing.
136		'''
137		# The docstring of this method in IterativePlugin is the following:
138		#
139		# Run the pre_process, process, and post_process methods.
140		#
141		# However, there is no obvious point where those methods are called,
142		# so perhaps this docstring isn't quite accurate? (Also note that this
143		# sentence has been copied from the docstring
144		# BaseDriver._run_plugin_instances(), so maybe it is just a generic
145		# description of what this method SHOULD do, but doesn't yet do,
146		# in IterativePlugin)
147
148		if self._ip_complete:
149		self.__finalise_datasets()
150		return
151		else:
152		print(f"Iteration {self._ip_iteration}...")
153		self.__set_datasets()
154		self._run_plugin_instances(transport, self.get_communicator())
155		# transport.no_processing is related to the nTrans variable that
156		# is seen in various places in the "transport layer"
157		# TODO: figure out what nTrans is/means
158		if transport.no_processing:
159		self.set_processing_complete()
160
161		# if self._ip_fixed_iterations has been set to something other
162		# than its original value of False, and if the current iteration
163		# (the one that has just been completed) is the LAST iteration,
164		# then processing has been completed
165		#
166		# Note that _ip_iteration starts counting at 0,
167		# but _ip_fixed_iterations starts counting at 1, so if you have
168		# reached _ip_iteration=n, then this means that n+1 iterations
169		# have been performed
170		if self._ip_fixed_iterations and \
171		self._ip_iteration == self._ip_fixed_iterations - 1:
172		self.set_processing_complete()
173		self._ip_iteration += 1
174		# start another iteration
175		self._run_plugin(exp, transport)
176
177		def create_clone(self, clone, data):
178		clone.create_dataset(data)
179		clone.data_info.set('clone', data.get_name())
180		# alternate a dataset with its clone
181		self.set_alternating_datasets(data, clone)
182
183	View Code Duplication	def __set_datasets(self):
		0 ignored issues – show Duplication introduced 2022-01-21 12:16 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
184		'''
185		Set the input and output datasets such that
186		- the output dataset from the previous iteration is the input dataset of
187		the current iteration that is about to be performed
188		- the input dataset from the previous iteration is used to write the
189		output of the current iteration that is about to be performed
190		'''
191		# TODO: perhaps the pattern should be changed here, to make use of
192		# the same logic that is being used to switch the original & cloned
193		# data?
194		params = self.parameters
195		# Only the 0th and 1st iterations are set in _ip_data_dicts, there is
196		# NOT a key for every iteration in _ip_data_dict, hence this if/elif
197		# block
198		if self._ip_iteration in list(self._ip_data_dict.keys()):
199		# If on the 0th or 1st iteration, set the in_datasets and
200		# out_datasets according to the structure defined in _ip_data_dict
201		#
202		# The body of this if statement is essentially a way to "set up" the
203		# input and ouput datasets so that for iterations after the 0th and
204		# 1st, the two datasets that are swapped between being used for
205		# input or output (depending on the particular iteration) can be
206		# swapped WITHOUT having to define a key-value pair in
207		# _ip_data_dict for EVERY SINGLE ITERATION
208		params['in_datasets'] = self._ip_data_dict[self._ip_iteration][0]
209		params['out_datasets'] = self._ip_data_dict[self._ip_iteration][1]
210		elif self._ip_iteration > 0:
211		# If on an iteration greater than 1 (since the if statement catches
212		# both iteration 0 and 1), then there is some (fiddly...) logic
213		# here to essentially SWAP the out dataset from the previous
214		# iteration with the in dataset of the previous iteration
215		#
216		# Practically speaking, this means that:
217		# - the out dataset from the previous iteration is used as the input
218		# for the current iteration that is about to be performed
219		# - the in dataset from the previous iteration is free to be used to
220		# write the output of the current iteration that is about to be
221		# performed
222		p = [params['in_datasets'], params['out_datasets']]
223		for s1, s2 in self._ip_data_dict['iterating'].items():
224		a = [0, p[0].index(s1)] if s1 in p[0] else [1, p[1].index(s1)]
225		b = [0, p[0].index(s2)] if s2 in p[0] else [1, p[1].index(s2)]
226		p[a[0]][a[1]], p[b[0]][b[1]] = p[b[0]][b[1]], p[a[0]][a[1]]
227
228		def set_alternating_datasets(self, d1, d2):
229		names = [d1.get_name(), d2.get_name()]
230		if not any([True if 'itr_clone' in i else False for i in names]):
231		raise Exception('Alternating datasets must contain a clone. These'
232		' are found at the end of the out_datasets list')
233		self._ip_data_dict['iterating'][d1] = d2
234
235		def get_alternating_datasets(self):
236		return self._ip_data_dict['iterating']
237
238		def set_iteration_datasets(self, itr, in_data, out_data, pattern=None):
239		self._ip_data_dict[itr] = [in_data, out_data]
240		self._ip_pattern_dict[itr] = pattern
241
242		def set_processing_complete(self):
243		'''
244		Signal that the final iteration has been executed.
245		'''
246		self._ip_complete = True
247
248	View Code Duplication	def __finalise_datasets(self):
		0 ignored issues – show Duplication introduced 2022-01-21 12:16 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
249		'''
250		Inspect the two Data objects that are used to contain the input and
251		output data for iterations over the course of the iterative processing
252		(input/output depending on which particular iteration was being done).
253
254		Mark one of them as the "final dataset" to be added to the output
255		NeXuS file, and mark the other as "obsolete/to be removed".
256
257		The decision between which one is kept and which one is removed
258		depends on which Data object contains the OUTPUT of the very last
259		iteration.
260
261		For an odd number of iterations, this is the "original" Data object.
262		For an even number of iteration, this is the "clone" Data object.
263		'''
264		for s1, s2 in self._ip_data_dict['iterating'].items():
265		name = s1.get_name()
266		name = name if 'itr_clone' not in name else s2.get_name()
267		final_dataset = s1 if s1 in self.parameters['out_datasets'] else s2
268		obsolete = s1 if s1 is not final_dataset else s2
269		obsolete.remove = True
270
271		# switch names if necessary
272		if final_dataset.get_name() != name:
273		# If this is true, then the output dataset of the last
274		# iteration is the clone Data object (hence, the mismatched
275		# names).
276		#
277		# So then:
278		# - obsolete = original
279		# - final_dataset = clone
280		#
281		# which means that the CLONED dataset needs to be set in the
282		# Experiment object (self.exp) as the "out data", but under
283		# the name of the ORIGINAL dataset.
284		# And also, the ORIGINAL dataset is set in the Experiment
285		# object, but under the name of the CLONED/OBSOLETE dataset
286		temp = obsolete
287		self.exp.index['out_data'][name] = final_dataset
288		self.exp.index['out_data'][s2.get_name()] = temp
289		# One last thing to do in this case is to set the "name"
290		# inside the Data object that final_result is set to.
291		#
292		# This is because, in this case, the CLONED dataset is in
293		# final_result, and the "name" within the Data object will
294		# be some value like "itr_0".
295		#
296		# However, the name within the Data object needs to be the
297		# name of the ORIGINAL Data object in order for the creation
298		# of the output NeXuS file to work.
299		final_dataset._set_name(name)
300
301		def __set_original_datasets(self):
302		'''
303		Utility function to make the (original) in dataset, and out dataset,
304		easier to reference
305		'''
306		self.in_data = self.parameters['in_datasets']
307		self.out_data = self.parameters['out_datasets']
308
309		def get_original_datasets(self):
310		'''
311		Helper function to get the in and out datasets more easily.
312		'''
313		return self.in_data, self.out_data

DiamondLightSource / Savu

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CpuIterativePlugin.__set_original_datasets() A

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