The Log Context is a Context implementation for pdata Logs, the collector's internal representation for OTLP log data. This Context should be used when interacted with OTLP logs.
In general, the Log Context supports accessing pdata using the field names from the logs proto. All integers are returned and set via int64. All doubles are returned and set via float64.
All TraceIDs and SpanIDs are returned as pdata SpanID and TraceID types. Use the SpanID function and TraceID function when interacting with pdata representations of SpanID and TraceID. When checking for nil, instead check against an empty byte slice (SpanID(0x0000000000000000) and TraceID(0x00000000000000000000000000000000)).
The following paths are supported.
| path | field accessed | type |
|---|---|---|
| cache | the value of the current transform context's temporary cache. cache can be used as a temporary placeholder for data during complex transformations | pcommon.Map |
| cache[""] | the value of an item in cache. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| resource | resource of the log being processed | pcommon.Resource |
| resource.attributes | resource attributes of the log being processed | pcommon.Map |
| resource.attributes[""] | the value of the resource attribute of the log being processed. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| resource.dropped_attributes_count | number of dropped attributes of the resource of the log being processed | int64 |
| instrumentation_scope | instrumentation scope of the log being processed | pcommon.InstrumentationScope |
| instrumentation_scope.name | name of the instrumentation scope of the log being processed | string |
| instrumentation_scope.version | version of the instrumentation scope of the log being processed | string |
| instrumentation_scope.dropped_attributes_count | number of dropped attributes of the instrumentation scope of the log being processed | int64 |
| instrumentation_scope.attributes | instrumentation scope attributes of the data point being processed | pcommon.Map |
| instrumentation_scope.attributes[""] | the value of the instrumentation scope attribute of the data point being processed. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| attributes | attributes of the log being processed | pcommon.Map |
| attributes[""] | the value of the attribute of the log being processed. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| trace_id | a byte slice representation of the trace id | pcommon.TraceID |
| trace_id.string | a string representation of the trace id | string |
| span_id | a byte slice representation of the span id | pcommon.SpanID |
| span_id.string | a string representation of the span id | string |
| time_unix_nano | the time in unix nano of the log being processed | int64 |
| observed_time_unix_nano | the observed time in unix nano of the log being processed | int64 |
| time | the time in time.Time of the log being processed |
time.Time |
| observed_time | the observed time in time.Time of the log being processed |
time.Time |
| severity_number | the severity numbner of the log being processed | int64 |
| severity_text | the severity text of the log being processed | string |
| body | the body of the log being processed | any |
| body[""] | a value in a map body of the log being processed. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| body[] | a value in a slice body of the log being processed. Supports multiple indexes to access nested fields. | string, bool, int64, float64, pcommon.Map, pcommon.Slice, []byte or nil |
| body.string | the body of the log being processed represented as a string. When setting must pass a string. | string |
| dropped_attributes_count | the number of dropped attributes of the log being processed | int64 |
| flags | the flags of the log being processed | int64 |
The Log Context supports the enum names from the logs proto.
| Enum Symbol | Value |
|---|---|
| SEVERITY_NUMBER_UNSPECIFIED | 0 |
| SEVERITY_NUMBER_TRACE | 1 |
| SEVERITY_NUMBER_TRACE2 | 2 |
| SEVERITY_NUMBER_TRACE3 | 3 |
| SEVERITY_NUMBER_TRACE4 | 4 |
| SEVERITY_NUMBER_DEBUG | 5 |
| SEVERITY_NUMBER_DEBUG2 | 6 |
| SEVERITY_NUMBER_DEBUG3 | 7 |
| SEVERITY_NUMBER_DEBUG4 | 8 |
| SEVERITY_NUMBER_INFO | 9 |
| SEVERITY_NUMBER_INFO2 | 10 |
| SEVERITY_NUMBER_INFO3 | 11 |
| SEVERITY_NUMBER_INFO4 | 12 |
| SEVERITY_NUMBER_WARN | 13 |
| SEVERITY_NUMBER_WARN2 | 14 |
| SEVERITY_NUMBER_WARN3 | 15 |
| SEVERITY_NUMBER_WARN4 | 16 |
| SEVERITY_NUMBER_ERROR | 17 |
| SEVERITY_NUMBER_ERROR2 | 18 |
| SEVERITY_NUMBER_ERROR3 | 19 |
| SEVERITY_NUMBER_ERROR4 | 20 |
| SEVERITY_NUMBER_FATAL | 21 |
| SEVERITY_NUMBER_FATAL2 | 22 |
| SEVERITY_NUMBER_FATAL3 | 23 |
| SEVERITY_NUMBER_FATAL4 | 24 |