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PipelineFactory.lookupRelativesRecursive()   B
last analyzed

↳ Parent: PipelineFactory.forFile()

Complexity

Conditions 7

Size

Total Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 7
dl 0
loc 13
rs 7.3333
c 0
b 0
f 0
1 
from niprov.dependencies import Dependencies
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from niprov.pipeline import Pipeline
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class PipelineFactory(object):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def __init__(self, dependencies=Dependencies()):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self.files = dependencies.getRepository()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def forFile(self, image):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        """Create a Pipeline object based on known files 'parents' field.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        """

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        filesByLocation = {image.location.toString():image}

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        def lookupRelativesRecursive(images, relationToLookFor):

            


            
                                                                        
                            
            
                                    
            
            

                
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            if relationToLookFor is 'parents':

            


            
                                                                        
                            
            
                                    
            
            

                
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                parentLocations = set()

            


            
                                                                        
                            
            
                                    
            
            

                
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                for image in images:

            


            
                                                                        
                            
            
                                    
            
            

                
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                    parentLocations.update(image.provenance.get('parents',[]))

            


            
                                                                        
                            
            
                                    
            
            

                
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                relatives = self.files.byLocations(list(parentLocations))

            


            
                                                                        
                            
            
                                    
            
            

                
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            elif relationToLookFor is 'children':

            


            
                                                                        
                            
            
                                    
            
            

                
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                thisGenerationLocations = [i.location.toString() for i in images]

            


            
                                                                        
                            
            
                                    
            
            

                
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                relatives = self.files.byParents(thisGenerationLocations)

            


            
                                                                        
                            
            
                                    
            
            

                
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            for relative in relatives:

            


            
                                                                        
                            
            
                                    
            
            

                
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                filesByLocation[relative.location.toString()] = relative

            


            
                                                                        
                            
            
                                    
            
            

                
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            if relatives:

            


            
                                                                        
                            
            
                                    
            
            

                
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                lookupRelativesRecursive(relatives, relationToLookFor)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        lookupRelativesRecursive([image], 'parents')

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        lookupRelativesRecursive([image], 'children')

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        return Pipeline(filesByLocation.values())

            


            
                                                        
            
                                    
            
            

                
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