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gen-graph.py
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gen-graph.py
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import sys
import itertools
import random
import json
nodeCount = None
edgePercent = None
labelCount = None
labelPercent = None
for i in range(1, len(sys.argv), 2):
label, value = sys.argv[i], sys.argv[i + 1]
if label == '--node':
nodeCount = int(value)
elif label == '--label':
labelCount = int(value)
elif label == '--edge-p':
edgePercent = float(value)
elif label == '--label-p':
labelPercent = float(value)
else:
raise Exception('Bad flag: ' + label)
if nodeCount == None or edgePercent == None or labelCount == None or labelPercent == None:
raise Exception('Forgot to give some flags.')
edgesRequired = int((nodeCount * (nodeCount - 1) // 2) * edgePercent)
labelPerEntity = int(labelCount * labelPercent)
edges = {}
labels = list(map(str, range(labelCount)))
nodes = list(range(1, nodeCount + 1))
fileContent = {'nodeProps': [], 'edgeProps': []}
# Add random labels per node.
for i in range(nodeCount):
fileContent['nodeProps'].append({"nodeLabels": random.sample(labels, labelPerEntity)})
totalEdges = itertools.product(nodes, nodes)
withNoDuplicateEdges = list(filter(lambda x: x[0] < x[1], totalEdges))
selectedEdges = random.sample(withNoDuplicateEdges, edgesRequired)
# Add random edges + labels per edges.
for edge in selectedEdges:
[nodeFrom, nodeTo] = edge
associatedLabels = random.sample(labels, labelPerEntity)
fileContent['edgeProps'].append({'from': nodeFrom, 'to': nodeTo, 'edgeLabels': associatedLabels})
print(json.dumps(fileContent))