restructured eth rpc API

rpc/api/utils.go

@@ -0,0 +1,36 @@
+package api
+
+import (
+	"strings"
+
+	"fmt"
+
+	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/rpc/codec"
+	"github.com/ethereum/go-ethereum/xeth"
+)
+
+const (
+	EthApiName = "eth"
+)
+
+// Parse a comma separated API string to individual api's
+func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.Ethereum) ([]EthereumApi, error) {
+	if len(strings.TrimSpace(apistr)) == 0 {
+		return nil, fmt.Errorf("Empty apistr provided")
+	}
+
+	names := strings.Split(apistr, ",")
+	apis := make([]EthereumApi, len(names))
+
+	for i, name := range names {
+		switch strings.ToLower(strings.TrimSpace(name)) {
+		case EthApiName:
+			apis[i] = NewEthApi(xeth, codec)
+		default:
+			return nil, fmt.Errorf("Unknown API '%s'", name)
+		}
+	}
+
+	return apis, nil
+}