64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
import glob
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from lxml import etree
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def detect_multiple_incoming_flows(bpmn_file):
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# Parse the BPMN file
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try:
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# actually use SpecFileService.get_etree_from_xml_bytes if we use this in future
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tree = etree.parse(bpmn_file) # noqa: S320
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except etree.XMLSyntaxError as e:
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print(f"Error parsing {bpmn_file}: {e}")
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return []
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root = tree.getroot()
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# Namespace dictionary for finding elements
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ns = {"bpmn": "http://www.omg.org/spec/BPMN/20100524/MODEL"}
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# Find all sequence flows
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sequence_flows = root.findall(".//bpmn:sequenceFlow", namespaces=ns)
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# Dictionary to keep track of incoming flows for each target
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incoming_flows = {}
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# Iterate through sequence flows and count incoming flows for each target
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for flow in sequence_flows:
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target_ref = flow.get("targetRef")
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if target_ref in incoming_flows:
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incoming_flows[target_ref] += 1
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else:
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incoming_flows[target_ref] = 1
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# Find tasks with multiple incoming flows, excluding gateways
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tasks_with_multiple_incoming = []
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for element, count in incoming_flows.items():
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if count > 1:
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# Check if the element is a task (not a gateway)
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task_elements = root.findall(f".//*[@id='{element}']", namespaces=ns)
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if task_elements:
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task_element = task_elements[0]
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if not any(tag in task_element.tag for tag in ["Gateway", "Event"]):
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tasks_with_multiple_incoming.append(element)
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return tasks_with_multiple_incoming
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def validate_bpmn_files():
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glob_pattern = "**/*.bpmn"
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# Find all BPMN files matching the glob pattern
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bpmn_files = glob.glob(glob_pattern, recursive=True)
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for bpmn_file in bpmn_files:
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tasks_with_issues = detect_multiple_incoming_flows(bpmn_file)
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if tasks_with_issues:
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print(f"Tasks with multiple incoming sequence flows in {bpmn_file}:")
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for task in tasks_with_issues:
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print(f" - {task}")
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# Run the validation
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validate_bpmn_files()
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