Rollback Aliyun Trace Icon File (#23027)

api/core/ops/aliyun_trace/aliyun_trace.py

             start_time=convert_datetime_to_nanoseconds(trace_info.start_time),
             end_time=convert_datetime_to_nanoseconds(trace_info.end_time),
             attributes={
-                GEN_AI_SESSION_ID: trace_info.metadata.get("conversation_id", ""),
+                GEN_AI_SESSION_ID: trace_info.metadata.get("conversation_id") or "",
                 GEN_AI_USER_ID: str(user_id),
                 GEN_AI_SPAN_KIND: GenAISpanKind.CHAIN.value,
                 GEN_AI_FRAMEWORK: "dify",
             start_time=convert_datetime_to_nanoseconds(trace_info.start_time),
             end_time=convert_datetime_to_nanoseconds(trace_info.end_time),
             attributes={
-                GEN_AI_SESSION_ID: trace_info.metadata.get("conversation_id", ""),
+                GEN_AI_SESSION_ID: trace_info.metadata.get("conversation_id") or "",
                 GEN_AI_USER_ID: str(user_id),
                 GEN_AI_SPAN_KIND: GenAISpanKind.LLM.value,
                 GEN_AI_FRAMEWORK: "dify",
-                GEN_AI_MODEL_NAME: trace_info.metadata.get("ls_model_name", ""),
-                GEN_AI_SYSTEM: trace_info.metadata.get("ls_provider", ""),
+                GEN_AI_MODEL_NAME: trace_info.metadata.get("ls_model_name") or "",
+                GEN_AI_SYSTEM: trace_info.metadata.get("ls_provider") or "",
                 GEN_AI_USAGE_INPUT_TOKENS: str(trace_info.message_tokens),
                 GEN_AI_USAGE_OUTPUT_TOKENS: str(trace_info.answer_tokens),
                 GEN_AI_USAGE_TOTAL_TOKENS: str(trace_info.total_tokens),
                 GEN_AI_SESSION_ID: trace_info.metadata.get("conversation_id") or "",
                 GEN_AI_SPAN_KIND: GenAISpanKind.LLM.value,
                 GEN_AI_FRAMEWORK: "dify",
-                GEN_AI_MODEL_NAME: process_data.get("model_name", ""),
-                GEN_AI_SYSTEM: process_data.get("model_provider", ""),
+                GEN_AI_MODEL_NAME: process_data.get("model_name") or "",
+                GEN_AI_SYSTEM: process_data.get("model_provider") or "",
                 GEN_AI_USAGE_INPUT_TOKENS: str(usage_data.get("prompt_tokens", 0)),
                 GEN_AI_USAGE_OUTPUT_TOKENS: str(usage_data.get("completion_tokens", 0)),
                 GEN_AI_USAGE_TOTAL_TOKENS: str(usage_data.get("total_tokens", 0)),
                 GEN_AI_PROMPT: json.dumps(process_data.get("prompts", []), ensure_ascii=False),
                 GEN_AI_COMPLETION: str(outputs.get("text", "")),
-                GEN_AI_RESPONSE_FINISH_REASON: outputs.get("finish_reason", ""),
+                GEN_AI_RESPONSE_FINISH_REASON: outputs.get("finish_reason") or "",
                 INPUT_VALUE: json.dumps(process_data.get("prompts", []), ensure_ascii=False),
                 OUTPUT_VALUE: str(outputs.get("text", "")),
             },
                     GEN_AI_USER_ID: str(user_id),
                     GEN_AI_SPAN_KIND: GenAISpanKind.CHAIN.value,
                     GEN_AI_FRAMEWORK: "dify",
-                    INPUT_VALUE: trace_info.workflow_run_inputs.get("sys.query", ""),
+                    INPUT_VALUE: trace_info.workflow_run_inputs.get("sys.query") or "",
                     OUTPUT_VALUE: json.dumps(trace_info.workflow_run_outputs, ensure_ascii=False),
                 },
                 status=status,
             attributes={
                 GEN_AI_SPAN_KIND: GenAISpanKind.LLM.value,
                 GEN_AI_FRAMEWORK: "dify",
-                GEN_AI_MODEL_NAME: trace_info.metadata.get("ls_model_name", ""),
-                GEN_AI_SYSTEM: trace_info.metadata.get("ls_provider", ""),
+                GEN_AI_MODEL_NAME: trace_info.metadata.get("ls_model_name") or "",
+                GEN_AI_SYSTEM: trace_info.metadata.get("ls_provider") or "",
                 GEN_AI_PROMPT: json.dumps(trace_info.inputs, ensure_ascii=False),
                 GEN_AI_COMPLETION: json.dumps(trace_info.suggested_question, ensure_ascii=False),
                 INPUT_VALUE: json.dumps(trace_info.inputs, ensure_ascii=False),