Files
cgrates/engine/libengine.go

67 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 engine
import (
"errors"
"fmt"
"time"
"github.com/cgrates/cgrates/config"
"github.com/cgrates/cgrates/utils"
"github.com/cgrates/rpcclient"
)
func NewRPCPool(dispatchStrategy, key_path, cert_path string, connAttempts, reconnects int,
connectTimeout, replyTimeout time.Duration, rpcConnCfgs []*config.HaPoolConfig,
internalConnChan chan rpcclient.RpcClientConnection, ttl time.Duration) (*rpcclient.RpcClientPool, error) {
var rpcClient *rpcclient.RpcClient
var err error
rpcPool := rpcclient.NewRpcClientPool(dispatchStrategy, replyTimeout)
atLestOneConnected := false // If one connected we don't longer return errors
for _, rpcConnCfg := range rpcConnCfgs {
if rpcConnCfg.Address == utils.MetaInternal {
var internalConn rpcclient.RpcClientConnection
select {
case internalConn = <-internalConnChan:
internalConnChan <- internalConn
case <-time.After(ttl):
return nil, errors.New("TTL triggered")
}
rpcClient, err = rpcclient.NewRpcClient("", "", key_path, cert_path, connAttempts, reconnects, connectTimeout, replyTimeout, rpcclient.INTERNAL_RPC, internalConn, false)
} else if utils.IsSliceMember([]string{utils.MetaJSONrpc, utils.MetaGOBrpc, ""}, rpcConnCfg.Transport) {
codec := utils.GOB
if rpcConnCfg.Transport != "" {
codec = rpcConnCfg.Transport[1:] // Transport contains always * before codec understood by rpcclient
}
rpcClient, err = rpcclient.NewRpcClient("tcp", rpcConnCfg.Address, key_path, cert_path, connAttempts, reconnects, connectTimeout, replyTimeout, codec, nil, false)
} else {
return nil, fmt.Errorf("Unsupported transport: <%s>", rpcConnCfg.Transport)
}
if err == nil {
atLestOneConnected = true
}
rpcPool.AddClient(rpcClient)
}
if atLestOneConnected {
err = nil
}
return rpcPool, err
}