Files
cgrates/utils/birpcint_client.go
2023-06-05 10:55:32 +02:00

74 lines
2.5 KiB
Go

/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
package utils
import (
"net"
"github.com/cenkalti/rpc2"
rpc2_jsonrpc "github.com/cenkalti/rpc2/jsonrpc"
"github.com/cgrates/birpc"
"github.com/cgrates/birpc/context"
)
// NewBiJSONrpcClient will create a bidirectional JSON client connection
func NewBiJSONrpcClient(addr string, handlers map[string]any) (*rpc2.Client, error) {
conn, err := net.Dial(TCP, addr)
if err != nil {
return nil, err
}
clnt := rpc2.NewClientWithCodec(rpc2_jsonrpc.NewJSONCodec(conn))
for method, handlerFunc := range handlers {
clnt.Handle(method, handlerFunc)
}
go clnt.Run()
return clnt, nil
}
// Interface which the server needs to work as BiRPCServer
type BiRPCServer interface {
Call(*context.Context, string, any, any) error // So we can use it also as birpc.ClientConnector
CallBiRPC(birpc.ClientConnector, string, any, any) error
}
type BiRPCClient interface {
Call(*context.Context, string, any, any) error // So we can use it also as birpc.ClientConnector
ID() string
}
func NewBiRPCInternalClient(serverConn BiRPCServer) *BiRPCInternalClient {
return &BiRPCInternalClient{serverConn: serverConn}
}
// Need separate client from the original RpcClientConnection since diretly passing the server is not enough without passing the client's reference
type BiRPCInternalClient struct {
serverConn BiRPCServer
clntConn birpc.ClientConnector // conn to reach client and do calls over it
}
// Used in case when clientConn is not available at init time (eg: SMGAsterisk who needs the biRPCConn at initialization)
func (clnt *BiRPCInternalClient) SetClientConn(clntConn birpc.ClientConnector) {
clnt.clntConn = clntConn
}
// Part of birpc.ClientConnector interface
func (clnt *BiRPCInternalClient) Call(ctx *context.Context, serviceMethod string, args any, reply any) error {
return clnt.serverConn.CallBiRPC(clnt.clntConn, serviceMethod, args, reply)
}