ore.models.job.Job.interpret_value() - Code Metrics - troeger/fuzzed - Measure and Improve Code Quality continuously with Scrutinizer

ore.models.job.Job.interpret_value() F
last analyzed 2020-09-24 10:09 UTC

↳ Parent: ore.models.job

Complexity

Conditions

Size

Total Lines	104
Code Lines	51

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	51
dl	0
loc	104
rs	0
c	0
b	0
f	0
cc	27
nop	3

How to fix Long Method Complexity

import uuid
import json
import xmlrpclib
import math
import logging

from django.db import models
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.core.mail import mail_managers
from django.http import HttpResponse
from django.conf import settings

from .graph import Graph
from .node import Node
from .configuration import Configuration
from .node_configuration import NodeConfiguration
from .result import Result
from ore.models import xml_backend
from ore.middleware import HttpResponseServerErrorAnswer
from .xml_configurations import FeatureChoice, InclusionChoice, RedundancyChoice
from .xml_backend import AnalysisResult, MincutResult, SimulationResult


logger = logging.getLogger('ore')


class NativeXmlField(models.Field):

    def db_type(self, connection):
        return 'xml'


def gen_uuid():
    return str(uuid.uuid4())


class Job(models.Model):

    class Meta:
        app_label = 'ore'

    MINCUT_JOB = 'mincut'
    TOP_EVENT_JOB = 'topevent'
    SIMULATION_JOB = 'simulation'
    EPS_RENDERING_JOB = 'eps'
    PDF_RENDERING_JOB = 'pdf'

    JOB_TYPES = (
        (MINCUT_JOB, 'Cutset computation'),
        (TOP_EVENT_JOB, 'Top event calculation (analytical)'),
        (SIMULATION_JOB, 'Top event calculation (simulation)'),
        (EPS_RENDERING_JOB, 'EPS rendering job'),
        (PDF_RENDERING_JOB, 'PDF rendering job')
    )

    graph = models.ForeignKey(Graph, null=True, related_name='jobs')
    # Detect graph changes during job execution
    graph_modified = models.DateTimeField()
    secret = models.CharField(
        max_length=64,
        default=gen_uuid)  # Unique secret for this job
    kind = models.CharField(max_length=127, choices=JOB_TYPES)
    created = models.DateTimeField(auto_now_add=True, editable=False)
    # Exit code for this job, NULL if pending
    exit_code = models.IntegerField(null=True)

    def input_data(self):
        ''' Used by the API to get the input data needed for the particular job type.'''
        if self.kind in (
                Job.MINCUT_JOB, Job.TOP_EVENT_JOB, Job.SIMULATION_JOB):
            return self.graph.to_xml(), 'application/xml'
        elif self.kind in (Job.EPS_RENDERING_JOB, Job.PDF_RENDERING_JOB):
            return self.graph.to_tikz(), 'application/text'
        assert (False)

    def done(self):
        return self.exit_code is not None

    @property
    def requires_download(self):
        """
            Indicates if the result should be delivered directly to the frontend
            as file, or if it must be preprocessed with self.result_rendering().
        """
        return self.kind in [Job.EPS_RENDERING_JOB, Job.PDF_RENDERING_JOB]

    @property
    def result_titles(self):
        '''
            The result class knows how the titles should look like.
        '''
        if self.kind == self.TOP_EVENT_JOB:
            return Result.titles(Result.ANALYSIS_RESULT, self.graph.kind)
        elif self.kind == self.SIMULATION_JOB:
            return Result.titles(Result.SIMULATION_RESULT, self.graph.kind)
        elif self.kind == self.MINCUT_JOB:
            return Result.titles(Result.MINCUT_RESULT, self.graph.kind)

    def static_info(self):
        '''
        Provides a static info string for the result that is independent from frontend parsing.
        This is mainly a debugging vehicle.
        '''
        # raw_results = [str(result.to_dict()) for result in self.results.all()]
        # return "Raw result information:<br/>"+"<br/>".join(raw_results)

    def axis_titles(self):
        '''
        Computes labeling and axis scales for the analysis results menu.
        Descriptions of configurations values for 'xAxis' and 'yAxis' can be taken from the official Highcharts api.
        '''
        axis_titles = {
            'xAxis': {
                'min': -0.05,
                'max': 1.05,
                'title': {
                    'text': None,  # 'x title',
                    'style': {
                        'fontSize': '9px'
                    }
                },
                'tickInterval': 0.2
            },
            'yAxis': {
                'min': 0,
                'max': 1.0,
                'title': {
                    'text': None,  # 'y title',
                    'style': {
                        'fontSize': '9px'
                    }
                },
                'tickInterval': 1.0,
                'minorTickInterval': 1.0 / 10
            }
        }

        return axis_titles

    @classmethod
    def exists_with_result(cls, graph, kind):
        '''
            Return an existing job object for that graph and job kind, but only
            if it was computed on the same graph data and has existing results.

            Theoretically, there is only one cached job left, since the new creation
            leads to deletion of old versions. We anyway prepare for the case of
            having multiple cached old results, by just using the youngest one.
        '''
        return None
# TODO: The cached job fetching seems to fail in the API part, test again heavily and re-enable then
#        try:
#            return Job.objects.filter(
#                graph=graph, kind=kind, graph_modified=graph.modified, exit_code=0).order_by('-created')[0]
#        except:
#            return None

    def result_download(self):
        """
            Returns an HttpResponse as direct file download of the result data.
        """
        response = HttpResponse()
        response[
            'Content-Disposition'] = 'attachment; filename=graph%u.%s' % (self.graph.pk, self.kind)
        response.content = Result.objects.exclude(
            kind=Result.GRAPH_ISSUES).get(
            job=self).binary_value
        response[
            'Content-Type'] = 'application/pdf' if self.kind == 'pdf' else 'application/postscript'
        return response

    def interpret_issues(self, xml_issues):
        """
            Interpret the incoming list of issues and convert to feasible JSON for storage.
        """
        errors = []
        warnings = []
        for issue in xml_issues:
            json_issue = {'message': issue.message,
                          'issueId': issue.issueId,
                          'elementId': issue.elementId}
            if issue.isFatal:
                errors.append(json_issue)
            else:
                warnings.append(json_issue)
        return {'errors': errors, 'warnings': warnings}

    def interpret_value(self, xml_result_value, db_result):
        """
            Interpret the incoming result value and convert it to feasible JSON for storage.

            Fuzzy probability values as result are given for each alpha cut. Putting
            all the different values together forms a triangular membership function.
            Crisp probabilities are just a special case of this, were the membership
            function collapses to a straight vertical line.

            The method determines both a list of drawable diagram coordinates,
            and the result values to be shown directly to the user.

            Diagram point determination:

            The X axis represents the unreliability value (== probability of failure),
            the Y axis the membership function probability value for the given unreliability value.
            For each alpha cut, the backend returns us the points were the upper border of the
            alphacut stripe is crossing the membership triangle.
            The lowest alphacut (0) has its upper border directly on the X axis.
            The highest alphacut has its upper border crossing the tip of the membership function.

            The two points were the alphacut border touches the membership function are called
            "[lower, upper]", the number of the alphacut is the "key".
            For this reason, "lower" and "upper" are used as X coordinates,
            while the key is used as "Y" coordinate.

        """
        if hasattr(xml_result_value,
                   'probability') and xml_result_value.probability is not None:
            points = []
            logging.debug("Probability: " + str(xml_result_value.probability))
            # we don't believe the delivered decomp_number
            alphacut_count = len(xml_result_value.probability.alphaCuts)
            for alpha_cut in xml_result_value.probability.alphaCuts:
                # Alphacut indexes start at zero
                y_val = alpha_cut.key + 1 / alphacut_count
                assert (0 <= y_val <= 1)
                points.append([alpha_cut.value_.lowerBound, y_val])
                if alpha_cut.value_.upperBound != alpha_cut.value_.lowerBound:
                    points.append([alpha_cut.value_.upperBound, y_val])
                else:
                    # This is the tip of the triangle.
                    # If this is a crisp probability, then there is only the point above added.
                    # In this case, add another fake point to draw a strisaght line.
                    # points.append([alpha_cut.value_.lowerBound, 0])
                    pass

            # Points is now a wild collection of coordinates, were double values for the same X
            # coordinate may occur. We sort it (since the JS code likes that) and leave only the
            # largest Y values per X value.

            # If we have only one point, it makes no sense to draw a graph
            # TODO: Instead, we could draw a nice exponential curve for the resulting rate parameter
            # This demands some better support for feeding the frontend graph
            # rendering (Axis range etc.)
            if alphacut_count > 1:
                db_result.points = json.dumps(sorted(points))

            # Compute some additional statistics for the front-end, based on
            # the gathered probabilities
            if len(points) > 0:
                db_result.minimum = min(
                    points,
                    key=lambda point: point[0])[0]  # left triangle border position
                db_result.maximum = max(
                    points,
                    key=lambda point: point[0])[0]  # right triangle border position
                db_result.peak = max(
                    points,
                    key=lambda point: point[1])[0]  # triangle tip position

        if hasattr(xml_result_value,
                   'reliability') and xml_result_value.reliability is not None:
            reliability = float(xml_result_value.reliability)
            db_result.reliability = None if math.isnan(
                reliability) else reliability

        if hasattr(xml_result_value,
                   'mttf') and xml_result_value.mttf is not None:
            mttf = float(xml_result_value.mttf)
            db_result.mttf = None if math.isnan(mttf) else mttf

        if hasattr(
                xml_result_value, 'nSimulatedRounds') and xml_result_value.nSimulatedRounds is not None:
            rounds = int(xml_result_value.nSimulatedRounds)
            db_result.rounds = None if math.isnan(rounds) else rounds

        if hasattr(xml_result_value,
                   'nFailures') and xml_result_value.nFailures is not None:
            failures = int(xml_result_value.nFailures)
            db_result.failures = None if math.isnan(failures) else failures

        if hasattr(xml_result_value,
                   'timestamp') and xml_result_value.timestamp is not None:
            timestamp = int(xml_result_value.timestamp)
            db_result.timestamp = None if math.isnan(timestamp) else timestamp
        else:
            # All analysis results not refering to a particular timestamp refer
            # to the configured missionTime
            top_node = db_result.graph.top_node()
            if top_node:
                timestamp = top_node.get_property('missionTime')
                db_result.timestamp = None if math.isnan(
                    timestamp) else timestamp

    def parse_result(self, data):
        """
            Parses the result data and saves the content to the database,
            in relation to this job.
        """
        if self.requires_download:
            if self.kind == self.PDF_RENDERING_JOB:
                old_results = self.results.filter(
                    graph=self.graph,
                    kind=Result.PDF_RESULT)
                old_results.delete()
                db_result = Result(
                    graph=self.graph,
                    job=self,
                    kind=Result.PDF_RESULT)
            elif self.kind == self.EPS_RENDERING_JOB:
                old_results = self.results.filter(
                    graph=self.graph,
                    kind=Result.EPS_RESULT)
                old_results.delete()
                db_result = Result(
                    graph=self.graph,
                    job=self,
                    kind=Result.EPS_RESULT)
            db_result.binary_value = data

            db_result.save()
            return

        # Ok, it is not binary, it is true XML result data
        print str(data)
        logger.debug(
            "Parsing backend result XML into database: \n" +
            str(data))
        doc = xml_backend.CreateFromDocument(str(data))

        # Delete old graph issues from a former analysis run
        self.graph.delete_results(kind=Result.GRAPH_ISSUES)

        if hasattr(doc, 'issue'):
            # Result-independent issues (for the whole graph, and not per configuration),
            # are saved as special kind of result
            db_result = Result(
                graph=self.graph,
                job=self,
                kind=Result.GRAPH_ISSUES)
            db_result.issues = json.dumps(self.interpret_issues(doc.issue))
            db_result.save()

        conf_id_mappings = {}         # XML conf ID's to DB conf ID's

        if hasattr(doc, 'configuration'):
            # Throw away existing configurations information
            self.graph.delete_configurations()
            # walk through all the configurations determined by the backend, as shown in the XML
            # Node configurations can be bulk-inserted, since nobody links to them
            # The expensive looped Configuration object creation cannot be bulk-inserted,
            # since we need their pk's in the NodeCOnfiguration object
            db_nodeconfs = []
            for configuration in doc.configuration:
                db_conf = Configuration(
                    graph=self.graph,
                    costs=configuration.costs if hasattr(
                        configuration,
                        'costs') else None)
                db_conf.save()
                conf_id_mappings[configuration.id] = db_conf
                logger.debug(
                    "Storing DB configuration %u for XML configuration %s in graph %u" %
                    (db_conf.pk, configuration.id, self.graph.pk))
                # Analyze node configuration choices in this configuration
                assert(
                    hasattr(
                        configuration,
                        'choice'))    # according to XSD, this must be given
                for choice in configuration.choice:
                    element = choice.value_
                    json_choice = {}
                    if isinstance(element, FeatureChoice):
                        json_choice['type'] = 'FeatureChoice'
                        json_choice['featureId'] = element.featureId
                    elif isinstance(element, InclusionChoice):
                        json_choice['type'] = 'InclusionChoice'
                        json_choice['included'] = element.included
                    elif isinstance(element, RedundancyChoice):
                        json_choice['type'] = 'RedundancyChoice'
                        json_choice['n'] = int(element.n)
                    else:
                        raise ValueError('Unknown choice %s' % element)
                    db_node = Node.objects.get(
                        client_id=choice.key,
                        graph=self.graph)
                    db_nodeconf = NodeConfiguration(
                        node=db_node,
                        configuration=db_conf,
                        setting=json.dumps(json_choice))
                    db_nodeconfs.append(db_nodeconf)
            logger.debug("Performing bulk insert of node configurations")
            NodeConfiguration.objects.bulk_create(db_nodeconfs)

        if hasattr(doc, 'result'):
            # Remove earlier results of the same kind
            if self.kind == self.TOP_EVENT_JOB:
                self.graph.delete_results(kind=Result.ANALYSIS_RESULT)
            elif self.kind == self.SIMULATION_JOB:
                self.graph.delete_results(kind=Result.SIMULATION_RESULT)
            elif self.kind == self.MINCUT_JOB:
                self.graph.delete_results(kind=Result.MINCUT_RESULT)
            db_results = []
            for result in doc.result:
                assert(int(result.modelId) == self.graph.pk)
                db_result = Result(graph=self.graph, job=self)
                if result.configId in conf_id_mappings:
                    db_result.configuration = conf_id_mappings[result.configId]
                if isinstance(result, AnalysisResult):
                    db_result.kind = Result.ANALYSIS_RESULT
                elif isinstance(result, MincutResult):
                    db_result.kind = Result.MINCUT_RESULT
                elif isinstance(result, SimulationResult):
                    db_result.kind = Result.SIMULATION_RESULT
                self.interpret_value(result, db_result)
                if result.issue:
                    db_result.issues = json.dumps(
                        self.interpret_issues(
                            result.issue))
                db_results.append(db_result)
            logger.debug("Performing bulk insert of parsed results")
            Result.objects.bulk_create(db_results)


@receiver(post_save, sender=Job)
def job_post_save(sender, instance, created, **kwargs):
    ''' Informs notification listeners.
        The payload contains the job URL prefix with a secret,
        which allows the listener to perform according actions.
    '''
    if created:
        # The only way to determine our own hostname + port number at runtime in Django
        # is from an HttpRequest object, which we do not have here.
        # Option 1 is to fetch this information from the HttpRequest and somehow move it here.
        # This works nice as long as LiveServerTestCase is not used, since the Django Test
        # Client still accesses the http://testserver URL and not the live server URL.
        # We therefore take the static approach with a setting here, which is overriden
        # by the test suite run accordingly

        # TODO: Use reverse() for this
        job_url = settings.SERVER + '/api/back/jobs/' + instance.secret

        try:
            # The proxy is instantiated here, since the connection should go
            # away when finished
            s = xmlrpclib.ServerProxy(settings.BACKEND_DAEMON)
            logger.debug(
                "Triggering %s job available through url %s" %
                (instance.kind, job_url))
            s.start_job(instance.kind, job_url)
        except Exception as e:
            mail_managers(
                "Exception on backend call - " +
                settings.BACKEND_DAEMON,
                str(e))
            raise HttpResponseServerErrorAnswer(
                "Sorry, we seem to have a problem with our ORE backend. The admins are informed, thanks for the patience.")


1			import uuid
2			import json
3			import xmlrpclib
4			import math
5			import logging
6
7			from django.db import models
8			from django.db.models.signals import post_save
9			from django.dispatch import receiver
10			from django.core.mail import mail_managers
11			from django.http import HttpResponse
12			from django.conf import settings
13
14			from .graph import Graph
15			from .node import Node
16			from .configuration import Configuration
17			from .node_configuration import NodeConfiguration
18			from .result import Result
19			from ore.models import xml_backend
20			from ore.middleware import HttpResponseServerErrorAnswer
21			from .xml_configurations import FeatureChoice, InclusionChoice, RedundancyChoice
22			from .xml_backend import AnalysisResult, MincutResult, SimulationResult
23
24
25			logger = logging.getLogger('ore')
26
27
28			class NativeXmlField(models.Field):
29
30			def db_type(self, connection):
31			return 'xml'
32
33
34			def gen_uuid():
35			return str(uuid.uuid4())
36
37
38			class Job(models.Model):
39
40			class Meta:
41			app_label = 'ore'
42
43			MINCUT_JOB = 'mincut'
44			TOP_EVENT_JOB = 'topevent'
45			SIMULATION_JOB = 'simulation'
46			EPS_RENDERING_JOB = 'eps'
47			PDF_RENDERING_JOB = 'pdf'
48
49			JOB_TYPES = (
50			(MINCUT_JOB, 'Cutset computation'),
51			(TOP_EVENT_JOB, 'Top event calculation (analytical)'),
52			(SIMULATION_JOB, 'Top event calculation (simulation)'),
53			(EPS_RENDERING_JOB, 'EPS rendering job'),
54			(PDF_RENDERING_JOB, 'PDF rendering job')
55			)
56
57			graph = models.ForeignKey(Graph, null=True, related_name='jobs')
58			# Detect graph changes during job execution
59			graph_modified = models.DateTimeField()
60			secret = models.CharField(
61			max_length=64,
62			default=gen_uuid) # Unique secret for this job
63			kind = models.CharField(max_length=127, choices=JOB_TYPES)
64			created = models.DateTimeField(auto_now_add=True, editable=False)
65			# Exit code for this job, NULL if pending
66			exit_code = models.IntegerField(null=True)
67
68			def input_data(self):
69			''' Used by the API to get the input data needed for the particular job type.'''
70			if self.kind in (
71			Job.MINCUT_JOB, Job.TOP_EVENT_JOB, Job.SIMULATION_JOB):
72			return self.graph.to_xml(), 'application/xml'
73			elif self.kind in (Job.EPS_RENDERING_JOB, Job.PDF_RENDERING_JOB):
74			return self.graph.to_tikz(), 'application/text'
75			assert (False)
76
77			def done(self):
78			return self.exit_code is not None
79
80			@property
81			def requires_download(self):
82			"""
83			Indicates if the result should be delivered directly to the frontend
84			as file, or if it must be preprocessed with self.result_rendering().
85			"""
86			return self.kind in [Job.EPS_RENDERING_JOB, Job.PDF_RENDERING_JOB]
87
88			@property
89			def result_titles(self):
90			'''
91			The result class knows how the titles should look like.
92			'''
93			if self.kind == self.TOP_EVENT_JOB:
94			return Result.titles(Result.ANALYSIS_RESULT, self.graph.kind)
95			elif self.kind == self.SIMULATION_JOB:
96			return Result.titles(Result.SIMULATION_RESULT, self.graph.kind)
97			elif self.kind == self.MINCUT_JOB:
98			return Result.titles(Result.MINCUT_RESULT, self.graph.kind)
99
100			def static_info(self):
101			'''
102			Provides a static info string for the result that is independent from frontend parsing.
103			This is mainly a debugging vehicle.
104			'''
105			# raw_results = [str(result.to_dict()) for result in self.results.all()]
106			# return "Raw result information:<br/>"+"<br/>".join(raw_results)
107
108			def axis_titles(self):
109			'''
110			Computes labeling and axis scales for the analysis results menu.
111			Descriptions of configurations values for 'xAxis' and 'yAxis' can be taken from the official Highcharts api.
112			'''
113			axis_titles = {
114			'xAxis': {
115			'min': -0.05,
116			'max': 1.05,
117			'title': {
118			'text': None, # 'x title',
119			'style': {
120			'fontSize': '9px'
121			}
122			},
123			'tickInterval': 0.2
124			},
125			'yAxis': {
126			'min': 0,
127			'max': 1.0,
128			'title': {
129			'text': None, # 'y title',
130			'style': {
131			'fontSize': '9px'
132			}
133			},
134			'tickInterval': 1.0,
135			'minorTickInterval': 1.0 / 10
136			}
137			}
138
139			return axis_titles
140
141			@classmethod
142			def exists_with_result(cls, graph, kind):
143			'''
144			Return an existing job object for that graph and job kind, but only
145			if it was computed on the same graph data and has existing results.
146
147			Theoretically, there is only one cached job left, since the new creation
148			leads to deletion of old versions. We anyway prepare for the case of
149			having multiple cached old results, by just using the youngest one.
150			'''
151			return None
152			# TODO: The cached job fetching seems to fail in the API part, test again heavily and re-enable then
153			# try:
154			# return Job.objects.filter(
155			# graph=graph, kind=kind, graph_modified=graph.modified, exit_code=0).order_by('-created')[0]
156			# except:
157			# return None
158
159			def result_download(self):
160			"""
161			Returns an HttpResponse as direct file download of the result data.
162			"""
163			response = HttpResponse()
164			response[
165			'Content-Disposition'] = 'attachment; filename=graph%u.%s' % (self.graph.pk, self.kind)
166			response.content = Result.objects.exclude(
167			kind=Result.GRAPH_ISSUES).get(
168			job=self).binary_value
169			response[
170			'Content-Type'] = 'application/pdf' if self.kind == 'pdf' else 'application/postscript'
171			return response
172
173			def interpret_issues(self, xml_issues):
174			"""
175			Interpret the incoming list of issues and convert to feasible JSON for storage.
176			"""
177			errors = []
178			warnings = []
179			for issue in xml_issues:
180			json_issue = {'message': issue.message,
181			'issueId': issue.issueId,
182			'elementId': issue.elementId}
183			if issue.isFatal:
184			errors.append(json_issue)
185			else:
186			warnings.append(json_issue)
187			return {'errors': errors, 'warnings': warnings}
188
189			def interpret_value(self, xml_result_value, db_result):
190			"""
191			Interpret the incoming result value and convert it to feasible JSON for storage.
192
193			Fuzzy probability values as result are given for each alpha cut. Putting
194			all the different values together forms a triangular membership function.
195			Crisp probabilities are just a special case of this, were the membership
196			function collapses to a straight vertical line.
197
198			The method determines both a list of drawable diagram coordinates,
199			and the result values to be shown directly to the user.
200
201			Diagram point determination:
202
203			The X axis represents the unreliability value (== probability of failure),
204			the Y axis the membership function probability value for the given unreliability value.
205			For each alpha cut, the backend returns us the points were the upper border of the
206			alphacut stripe is crossing the membership triangle.
207			The lowest alphacut (0) has its upper border directly on the X axis.
208			The highest alphacut has its upper border crossing the tip of the membership function.
209
210			The two points were the alphacut border touches the membership function are called
211			"[lower, upper]", the number of the alphacut is the "key".
212			For this reason, "lower" and "upper" are used as X coordinates,
213			while the key is used as "Y" coordinate.
214
215			"""
216			if hasattr(xml_result_value,
217			'probability') and xml_result_value.probability is not None:
218			points = []
219			logging.debug("Probability: " + str(xml_result_value.probability))
220			# we don't believe the delivered decomp_number
221			alphacut_count = len(xml_result_value.probability.alphaCuts)
222			for alpha_cut in xml_result_value.probability.alphaCuts:
223			# Alphacut indexes start at zero
224			y_val = alpha_cut.key + 1 / alphacut_count
225			assert (0 <= y_val <= 1)
226			points.append([alpha_cut.value_.lowerBound, y_val])
227			if alpha_cut.value_.upperBound != alpha_cut.value_.lowerBound:
228			points.append([alpha_cut.value_.upperBound, y_val])
229			else:
230			# This is the tip of the triangle.
231			# If this is a crisp probability, then there is only the point above added.
232			# In this case, add another fake point to draw a strisaght line.
233			# points.append([alpha_cut.value_.lowerBound, 0])
234			pass
235
236			# Points is now a wild collection of coordinates, were double values for the same X
237			# coordinate may occur. We sort it (since the JS code likes that) and leave only the
238			# largest Y values per X value.
239
240			# If we have only one point, it makes no sense to draw a graph
241			# TODO: Instead, we could draw a nice exponential curve for the resulting rate parameter
242			# This demands some better support for feeding the frontend graph
243			# rendering (Axis range etc.)
244			if alphacut_count > 1:
245			db_result.points = json.dumps(sorted(points))
246
247			# Compute some additional statistics for the front-end, based on
248			# the gathered probabilities
249			if len(points) > 0:
250			db_result.minimum = min(
251			points,
252			key=lambda point: point[0])[0] # left triangle border position
253			db_result.maximum = max(
254			points,
255			key=lambda point: point[0])[0] # right triangle border position
256			db_result.peak = max(
257			points,
258			key=lambda point: point[1])[0] # triangle tip position
259
260			if hasattr(xml_result_value,
261			'reliability') and xml_result_value.reliability is not None:
262			reliability = float(xml_result_value.reliability)
263			db_result.reliability = None if math.isnan(
264			reliability) else reliability
265
266			if hasattr(xml_result_value,
267			'mttf') and xml_result_value.mttf is not None:
268			mttf = float(xml_result_value.mttf)
269			db_result.mttf = None if math.isnan(mttf) else mttf
270
271			if hasattr(
272			xml_result_value, 'nSimulatedRounds') and xml_result_value.nSimulatedRounds is not None:
273			rounds = int(xml_result_value.nSimulatedRounds)
274			db_result.rounds = None if math.isnan(rounds) else rounds
275
276			if hasattr(xml_result_value,
277			'nFailures') and xml_result_value.nFailures is not None:
278			failures = int(xml_result_value.nFailures)
279			db_result.failures = None if math.isnan(failures) else failures
280
281			if hasattr(xml_result_value,
282			'timestamp') and xml_result_value.timestamp is not None:
283			timestamp = int(xml_result_value.timestamp)
284			db_result.timestamp = None if math.isnan(timestamp) else timestamp
285			else:
286			# All analysis results not refering to a particular timestamp refer
287			# to the configured missionTime
288			top_node = db_result.graph.top_node()
289			if top_node:
290			timestamp = top_node.get_property('missionTime')
291			db_result.timestamp = None if math.isnan(
292			timestamp) else timestamp
293
294			def parse_result(self, data):
295			"""
296			Parses the result data and saves the content to the database,
297			in relation to this job.
298			"""
299			if self.requires_download:
300			if self.kind == self.PDF_RENDERING_JOB:
301			old_results = self.results.filter(
302			graph=self.graph,
303			kind=Result.PDF_RESULT)
304			old_results.delete()
305			db_result = Result(
306			graph=self.graph,
307			job=self,
308			kind=Result.PDF_RESULT)
309			elif self.kind == self.EPS_RENDERING_JOB:
310			old_results = self.results.filter(
311			graph=self.graph,
312			kind=Result.EPS_RESULT)
313			old_results.delete()
314			db_result = Result(
315			graph=self.graph,
316			job=self,
317			kind=Result.EPS_RESULT)
318			db_result.binary_value = data
			0 ignored issues – show introduced 2018-03-07 23:29 UTC by Report Bug Copy Issue Report The variable `db_result` does not seem to be defined for all execution paths. Loading history...
319			db_result.save()
320			return
321
322			# Ok, it is not binary, it is true XML result data
323			print str(data)
324			logger.debug(
325			"Parsing backend result XML into database: \n" +
326			str(data))
327			doc = xml_backend.CreateFromDocument(str(data))
328
329			# Delete old graph issues from a former analysis run
330			self.graph.delete_results(kind=Result.GRAPH_ISSUES)
331
332			if hasattr(doc, 'issue'):
333			# Result-independent issues (for the whole graph, and not per configuration),
334			# are saved as special kind of result
335			db_result = Result(
336			graph=self.graph,
337			job=self,
338			kind=Result.GRAPH_ISSUES)
339			db_result.issues = json.dumps(self.interpret_issues(doc.issue))
340			db_result.save()
341
342			conf_id_mappings = {} # XML conf ID's to DB conf ID's
343
344			if hasattr(doc, 'configuration'):
345			# Throw away existing configurations information
346			self.graph.delete_configurations()
347			# walk through all the configurations determined by the backend, as shown in the XML
348			# Node configurations can be bulk-inserted, since nobody links to them
349			# The expensive looped Configuration object creation cannot be bulk-inserted,
350			# since we need their pk's in the NodeCOnfiguration object
351			db_nodeconfs = []
352			for configuration in doc.configuration:
353			db_conf = Configuration(
354			graph=self.graph,
355			costs=configuration.costs if hasattr(
356			configuration,
357			'costs') else None)
358			db_conf.save()
359			conf_id_mappings[configuration.id] = db_conf
360			logger.debug(
361			"Storing DB configuration %u for XML configuration %s in graph %u" %
362			(db_conf.pk, configuration.id, self.graph.pk))
363			# Analyze node configuration choices in this configuration
364			assert(
365			hasattr(
366			configuration,
367			'choice')) # according to XSD, this must be given
368			for choice in configuration.choice:
369			element = choice.value_
370			json_choice = {}
371			if isinstance(element, FeatureChoice):
372			json_choice['type'] = 'FeatureChoice'
373			json_choice['featureId'] = element.featureId
374			elif isinstance(element, InclusionChoice):
375			json_choice['type'] = 'InclusionChoice'
376			json_choice['included'] = element.included
377			elif isinstance(element, RedundancyChoice):
378			json_choice['type'] = 'RedundancyChoice'
379			json_choice['n'] = int(element.n)
380			else:
381			raise ValueError('Unknown choice %s' % element)
382			db_node = Node.objects.get(
383			client_id=choice.key,
384			graph=self.graph)
385			db_nodeconf = NodeConfiguration(
386			node=db_node,
387			configuration=db_conf,
388			setting=json.dumps(json_choice))
389			db_nodeconfs.append(db_nodeconf)
390			logger.debug("Performing bulk insert of node configurations")
391			NodeConfiguration.objects.bulk_create(db_nodeconfs)
392
393			if hasattr(doc, 'result'):
394			# Remove earlier results of the same kind
395			if self.kind == self.TOP_EVENT_JOB:
396			self.graph.delete_results(kind=Result.ANALYSIS_RESULT)
397			elif self.kind == self.SIMULATION_JOB:
398			self.graph.delete_results(kind=Result.SIMULATION_RESULT)
399			elif self.kind == self.MINCUT_JOB:
400			self.graph.delete_results(kind=Result.MINCUT_RESULT)
401			db_results = []
402			for result in doc.result:
403			assert(int(result.modelId) == self.graph.pk)
404			db_result = Result(graph=self.graph, job=self)
405			if result.configId in conf_id_mappings:
406			db_result.configuration = conf_id_mappings[result.configId]
407			if isinstance(result, AnalysisResult):
408			db_result.kind = Result.ANALYSIS_RESULT
409			elif isinstance(result, MincutResult):
410			db_result.kind = Result.MINCUT_RESULT
411			elif isinstance(result, SimulationResult):
412			db_result.kind = Result.SIMULATION_RESULT
413			self.interpret_value(result, db_result)
414			if result.issue:
415			db_result.issues = json.dumps(
416			self.interpret_issues(
417			result.issue))
418			db_results.append(db_result)
419			logger.debug("Performing bulk insert of parsed results")
420			Result.objects.bulk_create(db_results)
421
422
423			@receiver(post_save, sender=Job)
424			def job_post_save(sender, instance, created, **kwargs):
425			''' Informs notification listeners.
426			The payload contains the job URL prefix with a secret,
427			which allows the listener to perform according actions.
428			'''
429			if created:
430			# The only way to determine our own hostname + port number at runtime in Django
431			# is from an HttpRequest object, which we do not have here.
432			# Option 1 is to fetch this information from the HttpRequest and somehow move it here.
433			# This works nice as long as LiveServerTestCase is not used, since the Django Test
434			# Client still accesses the http://testserver URL and not the live server URL.
435			# We therefore take the static approach with a setting here, which is overriden
436			# by the test suite run accordingly
437
438			# TODO: Use reverse() for this
439			job_url = settings.SERVER + '/api/back/jobs/' + instance.secret
440
441			try:
442			# The proxy is instantiated here, since the connection should go
443			# away when finished
444			s = xmlrpclib.ServerProxy(settings.BACKEND_DAEMON)
445			logger.debug(
446			"Triggering %s job available through url %s" %
447			(instance.kind, job_url))
448			s.start_job(instance.kind, job_url)
449			except Exception as e:
450			mail_managers(
451			"Exception on backend call - " +
452			settings.BACKEND_DAEMON,
453			str(e))
454			raise HttpResponseServerErrorAnswer(
455			"Sorry, we seem to have a problem with our ORE backend. The admins are informed, thanks for the patience.")
456

troeger / fuzzed

ore.models.job.Job.interpret_value() F last analyzed 2020-09-24 10:09 UTC

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ore.models.job.Job.interpret_value() F
last analyzed 2020-09-24 10:09 UTC