fix: map A2A Message.role to correct GenAI content role#5198
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enjoykumawat wants to merge 2 commits intogoogle:mainfrom
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fix: map A2A Message.role to correct GenAI content role#5198enjoykumawat wants to merge 2 commits intogoogle:mainfrom
enjoykumawat wants to merge 2 commits intogoogle:mainfrom
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convert_a2a_message_to_event() hard-coded role="model" for all resulting ADK events regardless of the original A2A Message.role. User messages (Role.user) were incorrectly restored as model events. Add _a2a_role_to_content_role() helper that maps A2A Role.user to "user" and Role.agent to "model", and pass the mapped role through _create_event() via a new content_role parameter. Fixes google#5186
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Summary
Fixes #5186 —
convert_a2a_message_to_event()hard-codesrole="model"for all resulting ADK events, regardless of the original A2AMessage.role. User messages (Role.user) are incorrectly restored as model events.Root cause:
_create_event()always createsgenai_types.Content(role="model", ...)without considering the source message's role.Fix:
_a2a_role_to_content_role()helper that mapsA2ARole.user→"user"andA2ARole.agent→"model"content_roleparameter to_create_event()(defaults to"model"for backward compatibility)convert_a2a_message_to_event()through to_create_event()Changes
src/google/adk/a2a/converters/to_adk_event.py: ImportRole, add role mapping helper, threadcontent_rolethrough_create_event()tests/unittests/a2a/converters/test_to_adk.py: Add 2 tests verifying user→"user" and agent→"model" role mappingTest plan
test_to_adk.pytests pass (14 existing + 2 new)Role.user→content.role == "user",Role.agent→content.role == "model"