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minio/vendor/gopkg.in/Shopify/sarama.v1/prep_encoder.go

111 lines
1.9 KiB

package sarama
import (
"fmt"
"math"
)
type prepEncoder struct {
length int
}
// primitives
func (pe *prepEncoder) putInt8(in int8) {
pe.length++
}
func (pe *prepEncoder) putInt16(in int16) {
pe.length += 2
}
func (pe *prepEncoder) putInt32(in int32) {
pe.length += 4
}
func (pe *prepEncoder) putInt64(in int64) {
pe.length += 8
}
func (pe *prepEncoder) putArrayLength(in int) error {
if in > math.MaxInt32 {
return PacketEncodingError{fmt.Sprintf("array too long (%d)", in)}
}
pe.length += 4
return nil
}
// arrays
func (pe *prepEncoder) putBytes(in []byte) error {
pe.length += 4
if in == nil {
return nil
}
if len(in) > math.MaxInt32 {
return PacketEncodingError{fmt.Sprintf("byteslice too long (%d)", len(in))}
}
pe.length += len(in)
return nil
}
func (pe *prepEncoder) putRawBytes(in []byte) error {
if len(in) > math.MaxInt32 {
return PacketEncodingError{fmt.Sprintf("byteslice too long (%d)", len(in))}
}
pe.length += len(in)
return nil
}
func (pe *prepEncoder) putString(in string) error {
pe.length += 2
if len(in) > math.MaxInt16 {
return PacketEncodingError{fmt.Sprintf("string too long (%d)", len(in))}
}
pe.length += len(in)
return nil
}
func (pe *prepEncoder) putStringArray(in []string) error {
err := pe.putArrayLength(len(in))
if err != nil {
return err
}
for _, str := range in {
if err := pe.putString(str); err != nil {
return err
}
}
return nil
}
func (pe *prepEncoder) putInt32Array(in []int32) error {
err := pe.putArrayLength(len(in))
if err != nil {
return err
}
pe.length += 4 * len(in)
return nil
}
func (pe *prepEncoder) putInt64Array(in []int64) error {
err := pe.putArrayLength(len(in))
if err != nil {
return err
}
pe.length += 8 * len(in)
return nil
}
// stackable
func (pe *prepEncoder) push(in pushEncoder) {
pe.length += in.reserveLength()
}
func (pe *prepEncoder) pop() error {
return nil
}