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Added filtering logic to send filtered fields from DB event (sonic-ne…
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…t#307)

Signed-off-by: Mihir Patel <[email protected]>

Signed-off-by: Mihir Patel <[email protected]>
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mihirpat1 authored Oct 27, 2022
1 parent 8a2dad9 commit 82fc7a6
Showing 1 changed file with 8 additions and 5 deletions.
13 changes: 8 additions & 5 deletions sonic-xcvrd/xcvrd/xcvrd_utilities/port_mapping.py
Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,12 @@ def subscribe_port_update_event(namespaces, logger):
port_tbl, list(d.values())[0], namespace))
return sel, asic_context

def apply_filter_to_fvp(filter, fvp):
if filter is not None:
for key in fvp.copy().keys():
if key not in (set(filter) | set({'index', 'key', 'asic_id', 'op'})):
del fvp[key]

def handle_port_update_event(sel, asic_context, stop_event, logger, port_change_event_handler):
"""
Select PORT update events, notify the observers upon a port update in CONFIG_DB
Expand Down Expand Up @@ -175,17 +181,14 @@ def handle_port_update_event(sel, asic_context, stop_event, logger, port_change_
diff = {}
filter = fvp['FILTER']
del fvp['FILTER']
apply_filter_to_fvp(filter, fvp)

if key in PortChangeEvent.PORT_EVENT:
diff = dict(set(fvp.items()) - set(PortChangeEvent.PORT_EVENT[key].items()))
# Ignore duplicate events
if not diff:
PortChangeEvent.PORT_EVENT[key] = fvp
continue
# Ensure only interested field update gets through for processing
if filter is not None:
if not (set(filter) & set(diff.keys())):
PortChangeEvent.PORT_EVENT[key] = fvp
continue
PortChangeEvent.PORT_EVENT[key] = fvp

if fvp['op'] == swsscommon.SET_COMMAND:
Expand Down

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