diff options
Diffstat (limited to 'vendor/github.com/opentracing/opentracing-go/log/util.go')
-rw-r--r-- | vendor/github.com/opentracing/opentracing-go/log/util.go | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/github.com/opentracing/opentracing-go/log/util.go b/vendor/github.com/opentracing/opentracing-go/log/util.go new file mode 100644 index 00000000..d57e28aa --- /dev/null +++ b/vendor/github.com/opentracing/opentracing-go/log/util.go @@ -0,0 +1,61 @@ +package log + +import ( + "fmt" + "reflect" +) + +// InterleavedKVToFields converts keyValues a la Span.LogKV() to a Field slice +// a la Span.LogFields(). +func InterleavedKVToFields(keyValues ...interface{}) ([]Field, error) { + if len(keyValues)%2 != 0 { + return nil, fmt.Errorf("non-even keyValues len: %d", len(keyValues)) + } + fields := make([]Field, len(keyValues)/2) + for i := 0; i*2 < len(keyValues); i++ { + key, ok := keyValues[i*2].(string) + if !ok { + return nil, fmt.Errorf( + "non-string key (pair #%d): %T", + i, keyValues[i*2]) + } + switch typedVal := keyValues[i*2+1].(type) { + case bool: + fields[i] = Bool(key, typedVal) + case string: + fields[i] = String(key, typedVal) + case int: + fields[i] = Int(key, typedVal) + case int8: + fields[i] = Int32(key, int32(typedVal)) + case int16: + fields[i] = Int32(key, int32(typedVal)) + case int32: + fields[i] = Int32(key, typedVal) + case int64: + fields[i] = Int64(key, typedVal) + case uint: + fields[i] = Uint64(key, uint64(typedVal)) + case uint64: + fields[i] = Uint64(key, typedVal) + case uint8: + fields[i] = Uint32(key, uint32(typedVal)) + case uint16: + fields[i] = Uint32(key, uint32(typedVal)) + case uint32: + fields[i] = Uint32(key, typedVal) + case float32: + fields[i] = Float32(key, typedVal) + case float64: + fields[i] = Float64(key, typedVal) + default: + if typedVal == nil || (reflect.ValueOf(typedVal).Kind() == reflect.Ptr && reflect.ValueOf(typedVal).IsNil()) { + fields[i] = String(key, "nil") + continue + } + // When in doubt, coerce to a string + fields[i] = String(key, fmt.Sprint(typedVal)) + } + } + return fields, nil +} |