Matteo Scandolo | a428586 | 2020-12-01 18:10:10 -0800 | [diff] [blame^] | 1 | /* |
| 2 | Copyright 2015 The Kubernetes Authors. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package v1 |
| 18 | |
| 19 | import ( |
| 20 | "time" |
| 21 | ) |
| 22 | |
| 23 | // Timestamp is a struct that is equivalent to Time, but intended for |
| 24 | // protobuf marshalling/unmarshalling. It is generated into a serialization |
| 25 | // that matches Time. Do not use in Go structs. |
| 26 | type Timestamp struct { |
| 27 | // Represents seconds of UTC time since Unix epoch |
| 28 | // 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to |
| 29 | // 9999-12-31T23:59:59Z inclusive. |
| 30 | Seconds int64 `json:"seconds" protobuf:"varint,1,opt,name=seconds"` |
| 31 | // Non-negative fractions of a second at nanosecond resolution. Negative |
| 32 | // second values with fractions must still have non-negative nanos values |
| 33 | // that count forward in time. Must be from 0 to 999,999,999 |
| 34 | // inclusive. This field may be limited in precision depending on context. |
| 35 | Nanos int32 `json:"nanos" protobuf:"varint,2,opt,name=nanos"` |
| 36 | } |
| 37 | |
| 38 | // Timestamp returns the Time as a new Timestamp value. |
| 39 | func (m *Time) ProtoTime() *Timestamp { |
| 40 | if m == nil { |
| 41 | return &Timestamp{} |
| 42 | } |
| 43 | return &Timestamp{ |
| 44 | Seconds: m.Time.Unix(), |
| 45 | // leaving this here for the record. our JSON only handled seconds, so this results in writes by |
| 46 | // protobuf clients storing values that aren't read by json clients, which results in unexpected |
| 47 | // field mutation, which fails various validation and equality code. |
| 48 | // Nanos: int32(m.Time.Nanosecond()), |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | // Size implements the protobuf marshalling interface. |
| 53 | func (m *Time) Size() (n int) { |
| 54 | if m == nil || m.Time.IsZero() { |
| 55 | return 0 |
| 56 | } |
| 57 | return m.ProtoTime().Size() |
| 58 | } |
| 59 | |
| 60 | // Reset implements the protobuf marshalling interface. |
| 61 | func (m *Time) Unmarshal(data []byte) error { |
| 62 | if len(data) == 0 { |
| 63 | m.Time = time.Time{} |
| 64 | return nil |
| 65 | } |
| 66 | p := Timestamp{} |
| 67 | if err := p.Unmarshal(data); err != nil { |
| 68 | return err |
| 69 | } |
| 70 | // leaving this here for the record. our JSON only handled seconds, so this results in writes by |
| 71 | // protobuf clients storing values that aren't read by json clients, which results in unexpected |
| 72 | // field mutation, which fails various validation and equality code. |
| 73 | // m.Time = time.Unix(p.Seconds, int64(p.Nanos)).Local() |
| 74 | m.Time = time.Unix(p.Seconds, int64(0)).Local() |
| 75 | return nil |
| 76 | } |
| 77 | |
| 78 | // Marshal implements the protobuf marshaling interface. |
| 79 | func (m *Time) Marshal() (data []byte, err error) { |
| 80 | if m == nil || m.Time.IsZero() { |
| 81 | return nil, nil |
| 82 | } |
| 83 | return m.ProtoTime().Marshal() |
| 84 | } |
| 85 | |
| 86 | // MarshalTo implements the protobuf marshaling interface. |
| 87 | func (m *Time) MarshalTo(data []byte) (int, error) { |
| 88 | if m == nil || m.Time.IsZero() { |
| 89 | return 0, nil |
| 90 | } |
| 91 | return m.ProtoTime().MarshalTo(data) |
| 92 | } |
| 93 | |
| 94 | // MarshalToSizedBuffer implements the protobuf reverse marshaling interface. |
| 95 | func (m *Time) MarshalToSizedBuffer(data []byte) (int, error) { |
| 96 | if m == nil || m.Time.IsZero() { |
| 97 | return 0, nil |
| 98 | } |
| 99 | return m.ProtoTime().MarshalToSizedBuffer(data) |
| 100 | } |