82 lines
2.1 KiB
Go
82 lines
2.1 KiB
Go
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// Copyright (c) 2017 Uber Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package spanlog
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import (
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"encoding/json"
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"fmt"
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"github.com/opentracing/opentracing-go/log"
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)
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type fieldsAsMap map[string]string
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// MaterializeWithJSON converts log Fields into JSON string
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// TODO refactor into pluggable materializer
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func MaterializeWithJSON(logFields []log.Field) ([]byte, error) {
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fields := fieldsAsMap(make(map[string]string, len(logFields)))
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for _, field := range logFields {
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field.Marshal(fields)
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}
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if event, ok := fields["event"]; ok && len(fields) == 1 {
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return []byte(event), nil
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}
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return json.Marshal(fields)
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}
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func (ml fieldsAsMap) EmitString(key, value string) {
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ml[key] = value
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}
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func (ml fieldsAsMap) EmitBool(key string, value bool) {
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ml[key] = fmt.Sprintf("%t", value)
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}
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func (ml fieldsAsMap) EmitInt(key string, value int) {
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ml[key] = fmt.Sprintf("%d", value)
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}
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func (ml fieldsAsMap) EmitInt32(key string, value int32) {
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ml[key] = fmt.Sprintf("%d", value)
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}
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func (ml fieldsAsMap) EmitInt64(key string, value int64) {
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ml[key] = fmt.Sprintf("%d", value)
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}
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func (ml fieldsAsMap) EmitUint32(key string, value uint32) {
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ml[key] = fmt.Sprintf("%d", value)
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}
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func (ml fieldsAsMap) EmitUint64(key string, value uint64) {
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ml[key] = fmt.Sprintf("%d", value)
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}
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func (ml fieldsAsMap) EmitFloat32(key string, value float32) {
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ml[key] = fmt.Sprintf("%f", value)
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}
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func (ml fieldsAsMap) EmitFloat64(key string, value float64) {
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ml[key] = fmt.Sprintf("%f", value)
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}
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func (ml fieldsAsMap) EmitObject(key string, value interface{}) {
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ml[key] = fmt.Sprintf("%+v", value)
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}
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func (ml fieldsAsMap) EmitLazyLogger(value log.LazyLogger) {
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value(ml)
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}
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