tegwick
1353267569
Assistant: codex Assistant-Model: gpt-5.6-luna Assistant-Session: 01a087b0-7b1e-7531-8ef3-6525ebaf7ee7
45 lines
2.9 KiB
Python
Executable file
45 lines
2.9 KiB
Python
Executable file
#!/usr/bin/env python3
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"""Time-aware declaration matching over the FIAM query index."""
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from __future__ import annotations
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import json
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ALLOWED_RELATIONS={
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'rpc':{'fiam.relation.uses','fiam.relation.client-of','fiam.relation.targets'},
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'http':{'fiam.relation.uses','fiam.relation.client-of','fiam.relation.targets'},
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'messaging':{'fiam.relation.uses','fiam.relation.targets','fiam.relation.appends-to','fiam.relation.watches'},
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'database':{'fiam.relation.uses','fiam.relation.reads-from','fiam.relation.writes-to','fiam.relation.targets','fiam.relation.appends-to','fiam.relation.watches'},
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}
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def canonical(conn,ref,at):
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if not ref:return ref
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r=conn.execute('SELECT preferred_ref FROM working_identity WHERE observed_ref=? AND snapshot_time<=? ORDER BY snapshot_time DESC LIMIT 1',(ref,at)).fetchone()
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return r[0] if r else ref
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def latest_declared_exchanges(conn,population_id,at):
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rows=conn.execute("SELECT source_id,exchange_id,population_id,snapshot_time FROM exchange_documents WHERE mode='declared-snapshot' AND snapshot_time<=? AND (population_id IS NULL OR population_id=? ) ORDER BY source_id,snapshot_time DESC",(at,population_id)).fetchall()
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out={}
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for r in rows:
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if r['source_id'] not in out:out[r['source_id']]=r['exchange_id']
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return set(out.values())
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def match_edge(conn,row,population_id,at):
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exchanges=latest_declared_exchanges(conn,population_id,at)
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if not exchanges:return {'declared':False,'matches':[],'reason':'no-effective-declaration-snapshot'}
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fr=canonical(conn,row['from_ref'],at)
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targets={canonical(conn,row['target_ref'],at)}
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if row['channel_ref']:targets.add(canonical(conn,row['channel_ref'],at))
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if 'intended_target' in row.keys() and row['intended_target']:targets.add(canonical(conn,row['intended_target'],at))
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rels=ALLOWED_RELATIONS.get(row['domain'],set().union(*ALLOWED_RELATIONS.values()))
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marks=','.join('?'*len(exchanges));params=list(exchanges)
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ds=conn.execute(f'SELECT * FROM declarations WHERE exchange_id IN ({marks})',params).fetchall()
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hits=[]
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for d in ds:
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if d['predicate'] not in rels:continue
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ds_from=canonical(conn,d['subject_owner'] or d['subject_ref'],at)
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if ds_from!=fr:continue
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cands={canonical(conn,d['object_ref'],at),canonical(conn,d['object_owner'],at)}
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common=targets & {x for x in cands if x}
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if not common:continue
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via='channel' if row['channel_ref'] and canonical(conn,row['channel_ref'],at) in common else 'intended-target' if ('intended_target' in row.keys() and row['intended_target'] and canonical(conn,row['intended_target'],at) in common) else 'target'
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hits.append({'declaration_id':d['declaration_id'],'predicate':d['predicate'],'matched_via':via,'matched_ref':sorted(common)[0],'source_id':d['source_id']})
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return {'declared':bool(hits),'matches':hits,'reason':'matched' if hits else 'no-matching-declaration'}
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