[pdata] Update values returned by all String methods of enum types

Update values returned by all String methods of enum types to a consistent short form representing the enum identifier

.chloggen/rename-severy-numer-and-state-string-output.yaml

@@ -0,0 +1,8 @@
+change_type: breaking
+component: pdata
+note: "Change output of String() method of the following enum types to more a concise form:"
+subtext: |
+  - plog.SeverityNumber
+  - ptrace.SpanKind
+  - ptrace.StatusCode
+issues: [6251]

exporter/loggingexporter/internal/otlptext/testdata/logs/embedded_maps.out

@@ -7,7 +7,7 @@ LogRecord #0
 ObservedTimestamp: 1970-01-01 00:00:00 +0000 UTC
 Timestamp: 2020-02-11 20:26:13.000000789 +0000 UTC
 SeverityText: INFO
-SeverityNumber: SEVERITY_NUMBER_INFO(9)
+SeverityNumber: Info(9)
 Body: Map({"key1":"val1","key2":{"key21":"val21","key22":"val22"}})
 Attributes:
      -> key1: Map({"key11":"val11","key12":"val12","key13":{"key131":"val131"}})

exporter/loggingexporter/internal/otlptext/testdata/logs/one_record.out

@@ -9,7 +9,7 @@ LogRecord #0
 ObservedTimestamp: 1970-01-01 00:00:00 +0000 UTC
 Timestamp: 2020-02-11 20:26:13.000000789 +0000 UTC
 SeverityText: Info
-SeverityNumber: SEVERITY_NUMBER_INFO(9)
+SeverityNumber: Info(9)
 Body: Str(This is a log message)
 Attributes:
      -> app: Str(server)

exporter/loggingexporter/internal/otlptext/testdata/logs/two_records.out

@@ -9,7 +9,7 @@ LogRecord #0
 ObservedTimestamp: 1970-01-01 00:00:00 +0000 UTC
 Timestamp: 2020-02-11 20:26:13.000000789 +0000 UTC
 SeverityText: Info
-SeverityNumber: SEVERITY_NUMBER_INFO(9)
+SeverityNumber: Info(9)
 Body: Str(This is a log message)
 Attributes:
      -> app: Str(server)
@@ -21,7 +21,7 @@ LogRecord #1
 ObservedTimestamp: 1970-01-01 00:00:00 +0000 UTC
 Timestamp: 2020-02-11 20:26:13.000000789 +0000 UTC
 SeverityText: Info
-SeverityNumber: SEVERITY_NUMBER_INFO(9)
+SeverityNumber: Info(9)
 Body: Str(something happened)
 Attributes:
      -> customer: Str(acme)

pdata/plog/logs.go

@@ -101,4 +101,58 @@ const (
 )
 
 // String returns the string representation of the SeverityNumber.
-func (sn SeverityNumber) String() string { return otlplogs.SeverityNumber(sn).String() }
+func (sn SeverityNumber) String() string {
+	switch sn {
+	case SeverityNumberUnspecified:
+		return "Unspecified"
+	case SeverityNumberTrace:
+		return "Trace"
+	case SeverityNumberTrace2:
+		return "Trace2"
+	case SeverityNumberTrace3:
+		return "Trace3"
+	case SeverityNumberTrace4:
+		return "Trace4"
+	case SeverityNumberDebug:
+		return "Debug"
+	case SeverityNumberDebug2:
+		return "Debug2"
+	case SeverityNumberDebug3:
+		return "Debug3"
+	case SeverityNumberDebug4:
+		return "Debug4"
+	case SeverityNumberInfo:
+		return "Info"
+	case SeverityNumberInfo2:
+		return "Info2"
+	case SeverityNumberInfo3:
+		return "Info3"
+	case SeverityNumberInfo4:
+		return "Info4"
+	case SeverityNumberWarn:
+		return "Warn"
+	case SeverityNumberWarn2:
+		return "Warn2"
+	case SeverityNumberWarn3:
+		return "Warn3"
+	case SeverityNumberWarn4:
+		return "Warn4"
+	case SeverityNumberError:
+		return "Error"
+	case SeverityNumberError2:
+		return "Error2"
+	case SeverityNumberError3:
+		return "Error3"
+	case SeverityNumberError4:
+		return "Error4"
+	case SeverityNumberFatal:
+		return "Fatal"
+	case SeverityNumberFatal2:
+		return "Fatal2"
+	case SeverityNumberFatal3:
+		return "Fatal3"
+	case SeverityNumberFatal4:
+		return "Fatal4"
+	}
+	return ""
+}

pdata/ptrace/traces.go

@@ -72,9 +72,6 @@ func (ms Traces) ResourceSpans() ResourceSpansSlice {
 // in addition to a parent/child relationship.
 type SpanKind int32
 
-// String returns the string representation of the SpanKind.
-func (sk SpanKind) String() string { return otlptrace.Span_SpanKind(sk).String() }
-
 const (
 	// SpanKindUnspecified represents that the SpanKind is unspecified, it MUST NOT be used.
 	SpanKindUnspecified = SpanKind(otlptrace.Span_SPAN_KIND_UNSPECIFIED)
@@ -98,6 +95,25 @@ const (
 	SpanKindConsumer = SpanKind(otlptrace.Span_SPAN_KIND_CONSUMER)
 )
 
+// String returns the string representation of the SpanKind.
+func (sk SpanKind) String() string {
+	switch sk {
+	case SpanKindUnspecified:
+		return "Unspecified"
+	case SpanKindInternal:
+		return "Internal"
+	case SpanKindServer:
+		return "Server"
+	case SpanKindClient:
+		return "Client"
+	case SpanKindProducer:
+		return "Producer"
+	case SpanKindConsumer:
+		return "Consumer"
+	}
+	return ""
+}
+
 // StatusCode mirrors the codes defined at
 // https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#set-status
 type StatusCode int32
@@ -109,4 +125,14 @@ const (
 )
 
 // String returns the string representation of the StatusCode.
-func (sc StatusCode) String() string { return otlptrace.Status_StatusCode(sc).String() }
+func (sc StatusCode) String() string {
+	switch sc {
+	case StatusCodeUnset:
+		return "Unset"
+	case StatusCodeOk:
+		return "Ok"
+	case StatusCodeError:
+		return "Error"
+	}
+	return ""
+}