Rainbond/util/watch/event.go

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2018-05-18 23:40:19 +08:00
// RAINBOND, Application Management Platform
// Copyright (C) 2014-2017 Goodrain Co., Ltd.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package watch
import (
"fmt"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/mvcc/mvccpb"
)
type event struct {
key string
value []byte
prevValue []byte
rev int64
isDeleted bool
isCreated bool
}
// parseKV converts a KeyValue retrieved from an initial sync() listing to a synthetic isCreated event.
func parseKV(kv *mvccpb.KeyValue) *event {
return &event{
key: string(kv.Key),
value: kv.Value,
prevValue: nil,
rev: kv.ModRevision,
isDeleted: false,
isCreated: true,
}
}
func parseEvent(e *clientv3.Event) *event {
ret := &event{
key: string(e.Kv.Key),
value: e.Kv.Value,
rev: e.Kv.ModRevision,
isDeleted: e.Type == clientv3.EventTypeDelete,
isCreated: e.IsCreate(),
}
if e.PrevKv != nil {
ret.prevValue = e.PrevKv.Value
}
return ret
}
// Status is a return value for calls that don't return other objects.
type Status struct {
// Status of the operation.
// One of: "Success" or "Failure".
// +optional
Status string `json:"status,omitempty"`
// A human-readable description of the status of this operation.
// +optional
Message string `json:"message,omitempty"`
// A machine-readable description of why this operation is in the
// "Failure" status. If this value is empty there
// is no information available. A Reason clarifies an HTTP status
// code but does not override it.
// +optional
Reason string `json:"reason,omitempty"`
// Extended data associated with the reason. Each reason may define its
// own extended details. This field is optional and the data returned
// is not guaranteed to conform to any schema except that defined by
// the reason type.
// +optional
Details *string `json:"details,omitempty" `
// Suggested HTTP return code for this status, 0 if not set.
// +optional
Code int32 `json:"code,omitempty"`
}
func (s Status) Error() string {
return fmt.Sprintf("(%d)Status:%s Message:%s Reason:%s", s.Code, s.Status, s.Message, s.Reason)
}