// LogTagsFromContextToMap parses log tags from the context into a map of strings.
func LogTagsFromContextToMap(ctx context.Context) (tags map[string]string) {
if ctx == nil {
return tags
}
logTags, ok := logger.LogTagsFromContext(ctx)
if !ok || len(logTags) == 0 {
return tags
}
tags = make(map[string]string)
for key, tag := range logTags {
if v := ctx.Value(key); v != nil {
if value, ok := v.(fmt.Stringer); ok {
tags[tag] = value.String()
} else if value, ok := v.(string); ok {
tags[tag] = value
}
}
}
return tags
}
// LogTagsFromContext is a wrapper around logger.LogTagsFromContext
// that simply casts the result to the type expected by
// rpc.Connection.
func LogTagsFromContext(ctx context.Context) (map[interface{}]string, bool) {
tags, ok := logger.LogTagsFromContext(ctx)
return map[interface{}]string(tags), ok
}