mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright 2016 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package command
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import (
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"fmt"
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"os"
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v3 "github.com/coreos/etcd/clientv3"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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mvccpb "github.com/coreos/etcd/mvcc/mvccpb"
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)
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type pbPrinter struct{ printer }
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type pbMarshal interface {
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Marshal() ([]byte, error)
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}
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func newPBPrinter() printer {
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return &pbPrinter{
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&printerRPC{newPrinterUnsupported("protobuf"), printPB},
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}
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}
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func (p *pbPrinter) Watch(r v3.WatchResponse) {
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evs := make([]*mvccpb.Event, len(r.Events))
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for i, ev := range r.Events {
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evs[i] = (*mvccpb.Event)(ev)
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}
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wr := pb.WatchResponse{
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Header: &r.Header,
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Events: evs,
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CompactRevision: r.CompactRevision,
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Canceled: r.Canceled,
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Created: r.Created,
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}
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printPB(&wr)
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}
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func printPB(v interface{}) {
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m, ok := v.(pbMarshal)
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if !ok {
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ExitWithError(ExitBadFeature, fmt.Errorf("marshal unsupported for type %T (%v)", v, v))
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}
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b, err := m.Marshal()
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return
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}
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fmt.Print(string(b))
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}
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