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Add msgpack handler for smarter JSON encoding
The msgpack handler correctly retains information about whether the number is a float or an integer, unlike JSON. While the format is not human-readable, it makes a good interchange format for applications that don't necessarily care about a human readable output. This uses `github.com/tinylib/msgp` to precompile the marshaling for `models.Row`. Since we only use this library to marshal the one type, this is a much more efficient method of encoding than using reflection.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,271 @@ | ||
| package models | ||
|
|
||
| // NOTE: THIS FILE WAS PRODUCED BY THE | ||
| // MSGP CODE GENERATION TOOL (github.com/tinylib/msgp) | ||
| // DO NOT EDIT | ||
|
|
||
| import "github.com/tinylib/msgp/msgp" | ||
|
|
||
| // DecodeMsg implements msgp.Decodable | ||
| func (z *Row) DecodeMsg(dc *msgp.Reader) (err error) { | ||
| var field []byte | ||
| _ = field | ||
| var zwht uint32 | ||
| zwht, err = dc.ReadMapHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zwht > 0 { | ||
| zwht-- | ||
| field, err = dc.ReadMapKeyPtr() | ||
| if err != nil { | ||
| return | ||
| } | ||
| switch msgp.UnsafeString(field) { | ||
| case "name": | ||
| z.Name, err = dc.ReadString() | ||
| if err != nil { | ||
| return | ||
| } | ||
| case "tags": | ||
| var zhct uint32 | ||
| zhct, err = dc.ReadMapHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| if z.Tags == nil && zhct > 0 { | ||
| z.Tags = make(map[string]string, zhct) | ||
| } else if len(z.Tags) > 0 { | ||
| for key, _ := range z.Tags { | ||
| delete(z.Tags, key) | ||
| } | ||
| } | ||
| for zhct > 0 { | ||
| zhct-- | ||
| var zxvk string | ||
| var zbzg string | ||
| zxvk, err = dc.ReadString() | ||
| if err != nil { | ||
| return | ||
| } | ||
| zbzg, err = dc.ReadString() | ||
| if err != nil { | ||
| return | ||
| } | ||
| z.Tags[zxvk] = zbzg | ||
| } | ||
| case "columns": | ||
| var zcua uint32 | ||
| zcua, err = dc.ReadArrayHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| if cap(z.Columns) >= int(zcua) { | ||
| z.Columns = (z.Columns)[:zcua] | ||
| } else { | ||
| z.Columns = make([]string, zcua) | ||
| } | ||
| for zbai := range z.Columns { | ||
| z.Columns[zbai], err = dc.ReadString() | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| case "values": | ||
| var zxhx uint32 | ||
| zxhx, err = dc.ReadArrayHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| if cap(z.Values) >= int(zxhx) { | ||
| z.Values = (z.Values)[:zxhx] | ||
| } else { | ||
| z.Values = make([][]interface{}, zxhx) | ||
| } | ||
| for zcmr := range z.Values { | ||
| var zlqf uint32 | ||
| zlqf, err = dc.ReadArrayHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| if cap(z.Values[zcmr]) >= int(zlqf) { | ||
| z.Values[zcmr] = (z.Values[zcmr])[:zlqf] | ||
| } else { | ||
| z.Values[zcmr] = make([]interface{}, zlqf) | ||
| } | ||
| for zajw := range z.Values[zcmr] { | ||
| z.Values[zcmr][zajw], err = dc.ReadIntf() | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| default: | ||
| err = dc.Skip() | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // EncodeMsg implements msgp.Encodable | ||
| func (z *Row) EncodeMsg(en *msgp.Writer) (err error) { | ||
| // map header, size 4 | ||
| // write "name" | ||
| err = en.Append(0x84, 0xa4, 0x6e, 0x61, 0x6d, 0x65) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = en.WriteString(z.Name) | ||
| if err != nil { | ||
| return | ||
| } | ||
| // write "tags" | ||
| err = en.Append(0xa4, 0x74, 0x61, 0x67, 0x73) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = en.WriteMapHeader(uint32(len(z.Tags))) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zxvk, zbzg := range z.Tags { | ||
| err = en.WriteString(zxvk) | ||
| if err != nil { | ||
| return | ||
| } | ||
| err = en.WriteString(zbzg) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| // write "columns" | ||
| err = en.Append(0xa7, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x73) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = en.WriteArrayHeader(uint32(len(z.Columns))) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zbai := range z.Columns { | ||
| err = en.WriteString(z.Columns[zbai]) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| // write "values" | ||
| err = en.Append(0xa6, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x73) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = en.WriteArrayHeader(uint32(len(z.Values))) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zcmr := range z.Values { | ||
| err = en.WriteArrayHeader(uint32(len(z.Values[zcmr]))) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zajw := range z.Values[zcmr] { | ||
| err = en.WriteIntf(z.Values[zcmr][zajw]) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message | ||
| func (z *Row) Msgsize() (s int) { | ||
| s = 1 + 5 + msgp.StringPrefixSize + len(z.Name) + 5 + msgp.MapHeaderSize | ||
| if z.Tags != nil { | ||
| for zxvk, zbzg := range z.Tags { | ||
| _ = zbzg | ||
| s += msgp.StringPrefixSize + len(zxvk) + msgp.StringPrefixSize + len(zbzg) | ||
| } | ||
| } | ||
| s += 8 + msgp.ArrayHeaderSize | ||
| for zbai := range z.Columns { | ||
| s += msgp.StringPrefixSize + len(z.Columns[zbai]) | ||
| } | ||
| s += 7 + msgp.ArrayHeaderSize | ||
| for zcmr := range z.Values { | ||
| s += msgp.ArrayHeaderSize | ||
| for zajw := range z.Values[zcmr] { | ||
| s += msgp.GuessSize(z.Values[zcmr][zajw]) | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // DecodeMsg implements msgp.Decodable | ||
| func (z *Rows) DecodeMsg(dc *msgp.Reader) (err error) { | ||
| var zjfb uint32 | ||
| zjfb, err = dc.ReadArrayHeader() | ||
| if err != nil { | ||
| return | ||
| } | ||
| if cap((*z)) >= int(zjfb) { | ||
| (*z) = (*z)[:zjfb] | ||
| } else { | ||
| (*z) = make(Rows, zjfb) | ||
| } | ||
| for zpks := range *z { | ||
| if dc.IsNil() { | ||
| err = dc.ReadNil() | ||
| if err != nil { | ||
| return | ||
| } | ||
| (*z)[zpks] = nil | ||
| } else { | ||
| if (*z)[zpks] == nil { | ||
| (*z)[zpks] = new(Row) | ||
| } | ||
| err = (*z)[zpks].DecodeMsg(dc) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // EncodeMsg implements msgp.Encodable | ||
| func (z Rows) EncodeMsg(en *msgp.Writer) (err error) { | ||
| err = en.WriteArrayHeader(uint32(len(z))) | ||
| if err != nil { | ||
| return | ||
| } | ||
| for zcxo := range z { | ||
| if z[zcxo] == nil { | ||
| err = en.WriteNil() | ||
| if err != nil { | ||
| return | ||
| } | ||
| } else { | ||
| err = z[zcxo].EncodeMsg(en) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message | ||
| func (z Rows) Msgsize() (s int) { | ||
| s = msgp.ArrayHeaderSize | ||
| for zcxo := range z { | ||
| if z[zcxo] == nil { | ||
| s += msgp.NilSize | ||
| } else { | ||
| s += z[zcxo].Msgsize() | ||
| } | ||
| } | ||
| return | ||
| } |
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