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85 lines
2.1 KiB
85 lines
2.1 KiB
/*
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* Copyright 2020-2021 the original author(https://github.com/wj596)
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*
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* <p>
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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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* </p>
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*/
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package luaengine
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import (
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"github.com/siddontang/go-mysql/canal"
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"github.com/yuin/gopher-lua"
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"go-mysql-transfer/global"
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"go-mysql-transfer/model"
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)
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func mqModule(L *lua.LState) int {
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t := L.NewTable()
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L.SetFuncs(t, _mqModuleApi)
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L.Push(t)
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return 1
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}
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var _mqModuleApi = map[string]lua.LGFunction{
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"rawRow": rawRow,
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"rawOldRow": rawOldRow,
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"rawAction": rawAction,
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"SEND": msgSend,
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}
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func msgSend(L *lua.LState) int {
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topic := L.CheckAny(1)
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msg := L.CheckAny(2)
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ret := L.GetGlobal(_globalRET)
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L.SetTable(ret, msg, topic)
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return 0
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}
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func DoMQOps(input map[string]interface{}, previous map[string]interface{}, action string, rule *global.Rule) ([]*model.MQRespond, error) {
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L := _pool.Get()
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defer _pool.Put(L)
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row := L.NewTable()
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paddingTable(L, row, input)
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ret := L.NewTable()
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L.SetGlobal(_globalRET, ret)
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L.SetGlobal(_globalROW, row)
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L.SetGlobal(_globalACT, lua.LString(action))
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if action == canal.UpdateAction {
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oldRow := L.NewTable()
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paddingTable(L, oldRow, previous)
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L.SetGlobal(_globalOLDROW, oldRow)
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}
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funcFromProto := L.NewFunctionFromProto(rule.LuaProto)
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L.Push(funcFromProto)
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err := L.PCall(0, lua.MultRet, nil)
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if err != nil {
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return nil, err
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}
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list := make([]*model.MQRespond, 0, ret.Len())
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ret.ForEach(func(k lua.LValue, v lua.LValue) {
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resp := new(model.MQRespond)
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resp.ByteArray = lvToByteArray(k)
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resp.Topic = lvToString(v)
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list = append(list, resp)
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})
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return list, nil
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}
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