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json.go
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json.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package plog // import "go.opentelemetry.io/collector/pdata/plog"
import (
"bytes"
"fmt"
jsoniter "github.com/json-iterator/go"
"go.opentelemetry.io/collector/pdata/internal"
otlplogs "go.opentelemetry.io/collector/pdata/internal/data/protogen/logs/v1"
"go.opentelemetry.io/collector/pdata/internal/json"
"go.opentelemetry.io/collector/pdata/internal/otlp"
)
// JSONMarshaler marshals pdata.Logs to JSON bytes using the OTLP/JSON format.
type JSONMarshaler struct{}
// MarshalLogs to the OTLP/JSON format.
func (*JSONMarshaler) MarshalLogs(ld Logs) ([]byte, error) {
buf := bytes.Buffer{}
pb := internal.LogsToProto(internal.Logs(ld))
err := json.Marshal(&buf, &pb)
return buf.Bytes(), err
}
var _ Unmarshaler = (*JSONUnmarshaler)(nil)
// JSONUnmarshaler unmarshals OTLP/JSON formatted-bytes to pdata.Logs.
type JSONUnmarshaler struct{}
// UnmarshalLogs from OTLP/JSON format into pdata.Logs.
func (*JSONUnmarshaler) UnmarshalLogs(buf []byte) (Logs, error) {
iter := jsoniter.ConfigFastest.BorrowIterator(buf)
defer jsoniter.ConfigFastest.ReturnIterator(iter)
ld := NewLogs()
ld.unmarshalJsoniter(iter)
if iter.Error != nil {
return Logs{}, iter.Error
}
otlp.MigrateLogs(ld.getOrig().ResourceLogs)
return ld, nil
}
func (ms Logs) unmarshalJsoniter(iter *jsoniter.Iterator) {
iter.ReadObjectCB(func(iter *jsoniter.Iterator, f string) bool {
switch f {
case "resource_logs", "resourceLogs":
iter.ReadArrayCB(func(*jsoniter.Iterator) bool {
ms.ResourceLogs().AppendEmpty().unmarshalJsoniter(iter)
return true
})
default:
iter.Skip()
}
return true
})
}
func (ms ResourceLogs) unmarshalJsoniter(iter *jsoniter.Iterator) {
iter.ReadObjectCB(func(iter *jsoniter.Iterator, f string) bool {
switch f {
case "resource":
json.ReadResource(iter, &ms.orig.Resource)
case "scope_logs", "scopeLogs":
iter.ReadArrayCB(func(iter *jsoniter.Iterator) bool {
ms.ScopeLogs().AppendEmpty().unmarshalJsoniter(iter)
return true
})
case "schemaUrl", "schema_url":
ms.orig.SchemaUrl = iter.ReadString()
default:
iter.Skip()
}
return true
})
}
func (ms ScopeLogs) unmarshalJsoniter(iter *jsoniter.Iterator) {
iter.ReadObjectCB(func(iter *jsoniter.Iterator, f string) bool {
switch f {
case "scope":
json.ReadScope(iter, &ms.orig.Scope)
case "log_records", "logRecords":
iter.ReadArrayCB(func(iter *jsoniter.Iterator) bool {
ms.LogRecords().AppendEmpty().unmarshalJsoniter(iter)
return true
})
case "schemaUrl", "schema_url":
ms.orig.SchemaUrl = iter.ReadString()
default:
iter.Skip()
}
return true
})
}
func (ms LogRecord) unmarshalJsoniter(iter *jsoniter.Iterator) {
iter.ReadObjectCB(func(iter *jsoniter.Iterator, f string) bool {
switch f {
case "timeUnixNano", "time_unix_nano":
ms.orig.TimeUnixNano = json.ReadUint64(iter)
case "observed_time_unix_nano", "observedTimeUnixNano":
ms.orig.ObservedTimeUnixNano = json.ReadUint64(iter)
case "severity_number", "severityNumber":
ms.orig.SeverityNumber = otlplogs.SeverityNumber(json.ReadEnumValue(iter, otlplogs.SeverityNumber_value))
case "severity_text", "severityText":
ms.orig.SeverityText = iter.ReadString()
case "body":
json.ReadValue(iter, &ms.orig.Body)
case "attributes":
iter.ReadArrayCB(func(iter *jsoniter.Iterator) bool {
ms.orig.Attributes = append(ms.orig.Attributes, json.ReadAttribute(iter))
return true
})
case "droppedAttributesCount", "dropped_attributes_count":
ms.orig.DroppedAttributesCount = json.ReadUint32(iter)
case "flags":
ms.orig.Flags = json.ReadUint32(iter)
case "traceId", "trace_id":
if err := ms.orig.TraceId.UnmarshalJSON([]byte(iter.ReadString())); err != nil {
iter.ReportError("readLog.traceId", fmt.Sprintf("parse trace_id:%v", err))
}
case "spanId", "span_id":
if err := ms.orig.SpanId.UnmarshalJSON([]byte(iter.ReadString())); err != nil {
iter.ReportError("readLog.spanId", fmt.Sprintf("parse span_id:%v", err))
}
default:
iter.Skip()
}
return true
})
}