Remove duplicates of encoding of attributes

Author: jack-burridge-cfh

exporter/opentelemetry-exporter-otlp-proto-common/src/opentelemetry/exporter/otlp/proto/common/trace_encoder/__init__.py

@@ -139,16 +139,9 @@ def _encode_events(
             encoded_event = PB2SPan.Event(
                 name=event.name,
                 time_unix_nano=event.timestamp,
+                attributes=_encode_attributes(event.attributes),
                 dropped_attributes_count=event.attributes.dropped,
             )
-            for key, value in event.attributes.items():
-                try:
-                    encoded_event.attributes.append(
-                        _encode_key_value(key, value)
-                    )
-                # pylint: disable=broad-except
-                except Exception as error:
-                    _logger.exception(error)
             pb2_events.append(encoded_event)
     return pb2_events
 
@@ -161,16 +154,9 @@ def _encode_links(links: Sequence[Link]) -> Sequence[PB2SPan.Link]:
             encoded_link = PB2SPan.Link(
                 trace_id=_encode_trace_id(link.context.trace_id),
                 span_id=_encode_span_id(link.context.span_id),
+                attributes=_encode_attributes(link.attributes),
                 dropped_attributes_count=link.attributes.dropped,
             )
-            for key, value in link.attributes.items():
-                try:
-                    encoded_link.attributes.append(
-                        _encode_key_value(key, value)
-                    )
-                # pylint: disable=broad-except
-                except Exception as error:
-                    _logger.exception(error)
             pb2_links.append(encoded_link)
     return pb2_links
 
@@ -216,11 +202,4 @@ def _encode_attributes(
 
 
 def _encode_resource(resource: Resource) -> PB2Resource:
-    pb2_resource = PB2Resource()
-    for key, value in resource.attributes.items():
-        try:
-            # pylint: disable=no-member
-            pb2_resource.attributes.append(_encode_key_value(key, value))
-        except Exception as error:  # pylint: disable=broad-except
-            _logger.exception(error)
-    return pb2_resource
+    return PB2Resource(attributes=_encode_attributes(resource.attributes))