forked from cerc-io/plugeth
71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package api
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import (
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/logger/glog"
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"github.com/ethereum/go-ethereum/rpc/shared"
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)
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const (
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MergedApiVersion = "1.0"
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)
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// combines multiple API's
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type MergedApi struct {
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apis map[string]string
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methods map[string]EthereumApi
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}
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// create new merged api instance
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func newMergedApi(apis ...EthereumApi) *MergedApi {
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mergedApi := new(MergedApi)
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mergedApi.apis = make(map[string]string, len(apis))
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mergedApi.methods = make(map[string]EthereumApi)
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for _, api := range apis {
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mergedApi.apis[api.Name()] = api.ApiVersion()
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for _, method := range api.Methods() {
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mergedApi.methods[method] = api
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}
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}
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return mergedApi
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}
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// Supported RPC methods
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func (self *MergedApi) Methods() []string {
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all := make([]string, len(self.methods))
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for method, _ := range self.methods {
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all = append(all, method)
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}
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return all
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}
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// Call the correct API's Execute method for the given request
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func (self *MergedApi) Execute(req *shared.Request) (interface{}, error) {
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glog.V(logger.Detail).Infof("rpc method: %s", req.Method)
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if res, _ := self.handle(req); res != nil {
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return res, nil
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}
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if api, found := self.methods[req.Method]; found {
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return api.Execute(req)
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}
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return nil, shared.NewNotImplementedError(req.Method)
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}
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func (self *MergedApi) Name() string {
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return MergedApiName
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}
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func (self *MergedApi) ApiVersion() string {
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return MergedApiVersion
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}
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func (self *MergedApi) handle(req *shared.Request) (interface{}, error) {
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if req.Method == "modules" { // provided API's
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return self.apis, nil
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}
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return nil, nil
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}
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