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data.go
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data.go
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/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License")
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package serialization
import (
"encoding/binary"
"github.com/hazelcast/hazelcast-go-client/internal/murmur"
)
const (
typeOffset = 4
DataOffset = 8
heapDataOverhead = 8
)
type Data []byte
func (d Data) ToByteArray() []byte {
return d
}
func (d Data) Type() int32 {
if d == nil {
return TypeNil
}
return int32(binary.BigEndian.Uint32(d[typeOffset:]))
}
func (d Data) DataSize() int {
v := len(d) - heapDataOverhead
if v <= 0 {
return 0
}
return v
}
func (d Data) PartitionHash() int32 {
return murmur.Default3A(d, DataOffset, d.DataSize())
}