mirror of
https://github.com/k3s-io/kubernetes.git
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93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package executorinfo
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import (
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"encoding/base64"
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"io"
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"bufio"
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"github.com/gogo/protobuf/proto"
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"github.com/mesos/mesos-go/mesosproto"
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)
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var base64Codec = base64.StdEncoding
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// EncodeResources encodes the given resource slice to the given writer.
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// The resource slice is encoded as a comma separated string of
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// base64 encoded resource protobufs.
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func EncodeResources(w io.Writer, rs []*mesosproto.Resource) error {
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sep := ""
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for _, r := range rs {
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_, err := io.WriteString(w, sep)
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if err != nil {
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return err
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}
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buf, err := proto.Marshal(r)
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if err != nil {
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return err
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}
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encoded := base64Codec.EncodeToString(buf)
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_, err = io.WriteString(w, encoded)
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if err != nil {
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return err
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}
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sep = ","
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}
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return nil
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}
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// DecodeResources decodes a resource slice from the given reader.
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// The format is expected to be the same as in EncodeResources.
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func DecodeResources(r io.Reader) (rs []*mesosproto.Resource, err error) {
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delimited := bufio.NewReader(r)
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rs = []*mesosproto.Resource{}
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for err != io.EOF {
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var encoded string
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encoded, err = delimited.ReadString(',')
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switch {
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case err == io.EOF:
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case err == nil:
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encoded = encoded[:len(encoded)-1]
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default: // err != nil && err != io.EOF
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return nil, err
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}
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decoded, err := base64Codec.DecodeString(encoded)
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if err != nil {
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return nil, err
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}
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r := mesosproto.Resource{}
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if err := proto.Unmarshal(decoded, &r); err != nil {
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return nil, err
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}
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rs = append(rs, &r)
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}
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return rs, nil
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}
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