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abi_mgr.go
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abi_mgr.go
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/*
* Copyright (C) 2018 The ZeepinChain Authors
* This file is part of The ZeepinChain library.
*
* The ZeepinChain is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ZeepinChain 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The ZeepinChain. If not, see <http://www.gnu.org/licenses/>.
*/
package abi
import (
"encoding/json"
"fmt"
"io/ioutil"
"strings"
"github.com/zeepin/ZeepinChain/common/log"
)
var DefAbiMgr = NewAbiMgr()
type AbiMgr struct {
Path string
nativeAbis map[string]*NativeContractAbi
}
func NewAbiMgr() *AbiMgr {
return &AbiMgr{
nativeAbis: make(map[string]*NativeContractAbi),
}
}
func (this *AbiMgr) GetNativeAbi(address string) *NativeContractAbi {
abi, ok := this.nativeAbis[address]
if ok {
return abi
}
return nil
}
func (this *AbiMgr) Init(path string) {
this.Path = path
this.loadNativeAbi()
}
func (this *AbiMgr) loadNativeAbi() {
nativeAbiFiles, err := ioutil.ReadDir(this.Path)
if err != nil {
log.Errorf("AbiMgr loadNativeAbi read dir:./native error:%s", err)
return
}
for _, nativeAbiFile := range nativeAbiFiles {
fileName := nativeAbiFile.Name()
if nativeAbiFile.IsDir() {
continue
}
if !strings.HasSuffix(fileName, ".json") {
continue
}
data, err := ioutil.ReadFile(fmt.Sprintf("%s/%s", this.Path, fileName))
if err != nil {
log.Errorf("AbiMgr loadNativeAbi name:%s error:%s", fileName, err)
continue
}
nativeAbi := &NativeContractAbi{}
err = json.Unmarshal(data, nativeAbi)
if err != nil {
log.Errorf("AbiMgr loadNativeAbi name:%s error:%s", fileName, err)
continue
}
this.nativeAbis[nativeAbi.Address] = nativeAbi
log.Infof("Native contract name:%s address:%s abi load success", fileName, nativeAbi.Address)
}
}