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deflate_compress.go
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/
deflate_compress.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 compressor
import (
"bytes"
"compress/flate"
"io"
"github.com/seata/seata-go/pkg/util/log"
)
type DeflateCompress struct{}
func (*DeflateCompress) Compress(data []byte) ([]byte, error) {
var buf bytes.Buffer
fw, err := flate.NewWriter(&buf, flate.BestCompression)
if err != nil {
log.Error(err)
return nil, err
}
defer fw.Close()
fw.Write(data)
fw.Flush()
return buf.Bytes(), nil
}
func (*DeflateCompress) Decompress(data []byte) ([]byte, error) {
fr := flate.NewReader(bytes.NewBuffer(data))
defer fr.Close()
return io.ReadAll(fr)
}
func (*DeflateCompress) GetCompressorType() CompressorType {
return CompressorDeflate
}