path: root/rpc/api/net.go

package api

import (
    "github.com/ethereum/go-ethereum/eth"
    "github.com/ethereum/go-ethereum/rpc/codec"
    "github.com/ethereum/go-ethereum/rpc/shared"
    "github.com/ethereum/go-ethereum/xeth"
)

var (
    // mapping between methods and handlers
    netMapping = map[string]nethandler{
        "net_id":        (*net).NetworkVersion,
        "net_peerCount": (*net).PeerCount,
        "net_listening": (*net).IsListening,
        "net_peers":     (*net).Peers,
    }
)

// net callback handler
type nethandler func(*net, *shared.Request) (interface{}, error)

// net api provider
type net struct {
    xeth     *xeth.XEth
    ethereum *eth.Ethereum
    methods  map[string]nethandler
    codec    codec.ApiCoder
}

// create a new net api instance
func NewNetApi(xeth *xeth.XEth, eth *eth.Ethereum, coder codec.Codec) *net {
    return &net{
        xeth:     xeth,
        ethereum: eth,
        methods:  netMapping,
        codec:    coder.New(nil),
    }
}

// collection with supported methods
func (self *net) Methods() []string {
    methods := make([]string, len(self.methods))
    i := 0
    for k := range self.methods {
        methods[i] = k
        i++
    }
    return methods
}

// Execute given request
func (self *net) Execute(req *shared.Request) (interface{}, error) {
    if callback, ok := self.methods[req.Method]; ok {
        return callback(self, req)
    }

    return nil, shared.NewNotImplementedError(req.Method)
}

func (self *net) Name() string {
    return NetApiName
}

// Network version
func (self *net) NetworkVersion(req *shared.Request) (interface{}, error) {
    return self.xeth.NetworkVersion(), nil
}

// Number of connected peers
func (self *net) PeerCount(req *shared.Request) (interface{}, error) {
    return self.xeth.PeerCount(), nil
}

func (self *net) IsListening(req *shared.Request) (interface{}, error) {
    return self.xeth.IsListening(), nil
}

func (self *net) Peers(req *shared.Request) (interface{}, error) {
    return self.ethereum.PeersInfo(), nil
}