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First attempt to cleanup worker code. (cadence-workflow#982)
- Moved replayer, register and encoding to their own files. - Moved some util functions to common. - No functional change. - Fix licence scanner
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| // Copyright (c) 2017-2020 Uber Technologies Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| package internal | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "reflect" | ||
|
|
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| "github.com/apache/thrift/lib/go/thrift" | ||
| "go.uber.org/cadence/internal/common" | ||
| ) | ||
|
|
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| // encoding is capable of encoding and decoding objects | ||
| type encoding interface { | ||
| Marshal([]interface{}) ([]byte, error) | ||
| Unmarshal([]byte, []interface{}) error | ||
| } | ||
|
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| // jsonEncoding encapsulates json encoding and decoding | ||
| type jsonEncoding struct { | ||
| } | ||
|
|
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| // Marshal encodes an array of object into bytes | ||
| func (g jsonEncoding) Marshal(objs []interface{}) ([]byte, error) { | ||
| var buf bytes.Buffer | ||
| enc := json.NewEncoder(&buf) | ||
| for i, obj := range objs { | ||
| if err := enc.Encode(obj); err != nil { | ||
| if err == io.EOF { | ||
| return nil, fmt.Errorf("missing argument at index %d of type %T", i, obj) | ||
| } | ||
| return nil, fmt.Errorf( | ||
| "unable to encode argument: %d, %v, with json error: %v", i, reflect.TypeOf(obj), err) | ||
| } | ||
| } | ||
| return buf.Bytes(), nil | ||
| } | ||
|
|
||
| // Unmarshal decodes a byte array into the passed in objects | ||
| func (g jsonEncoding) Unmarshal(data []byte, objs []interface{}) error { | ||
| dec := json.NewDecoder(bytes.NewBuffer(data)) | ||
| for i, obj := range objs { | ||
| if err := dec.Decode(obj); err != nil { | ||
| return fmt.Errorf( | ||
| "unable to decode argument: %d, %v, with json error: %v", i, reflect.TypeOf(obj), err) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // thriftEncoding encapsulates thrift serializer/de-serializer. | ||
| type thriftEncoding struct{} | ||
|
|
||
| // Marshal encodes an array of thrift into bytes | ||
| func (g thriftEncoding) Marshal(objs []interface{}) ([]byte, error) { | ||
| var tlist []thrift.TStruct | ||
| for i := 0; i < len(objs); i++ { | ||
| if !common.IsThriftType(objs[i]) { | ||
| return nil, fmt.Errorf("pointer to thrift.TStruct type is required for %v argument", i+1) | ||
| } | ||
| t := reflect.ValueOf(objs[i]).Interface().(thrift.TStruct) | ||
| tlist = append(tlist, t) | ||
| } | ||
| return common.TListSerialize(tlist) | ||
| } | ||
|
|
||
| // Unmarshal decodes an array of thrift into bytes | ||
| func (g thriftEncoding) Unmarshal(data []byte, objs []interface{}) error { | ||
| var tlist []thrift.TStruct | ||
| for i := 0; i < len(objs); i++ { | ||
| rVal := reflect.ValueOf(objs[i]) | ||
| if rVal.Kind() != reflect.Ptr || !common.IsThriftType(reflect.Indirect(rVal).Interface()) { | ||
| return fmt.Errorf("pointer to pointer thrift.TStruct type is required for %v argument", i+1) | ||
| } | ||
| t := reflect.New(rVal.Elem().Type().Elem()).Interface().(thrift.TStruct) | ||
| tlist = append(tlist, t) | ||
| } | ||
|
|
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| if err := common.TListDeserialize(tlist, data); err != nil { | ||
| return err | ||
| } | ||
|
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| for i := 0; i < len(tlist); i++ { | ||
| reflect.ValueOf(objs[i]).Elem().Set(reflect.ValueOf(tlist[i])) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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