Files
cgrates/engine/connmanager.go
2019-12-03 07:18:08 -05:00

79 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 (
"github.com/cgrates/cgrates/config"
"github.com/cgrates/cgrates/utils"
"github.com/cgrates/rpcclient"
)
// NewConnManager returns the Connection Manager
func NewConnManager(cfg *config.CGRConfig, rpcInternal map[string]chan rpcclient.RpcClientConnection) (cM *ConnManager) {
return &ConnManager{cfg: cfg, rpcInternal: rpcInternal}
}
type ConnManager struct {
cfg *config.CGRConfig
rpcInternal map[string]chan rpcclient.RpcClientConnection
}
func (cM *ConnManager) getConn(connID string) (connPool *rpcclient.RpcClientPool, err error) {
//try to get the connection from cache
if x, ok := Cache.Get(utils.CacheRPCConnections, connID); ok {
if x == nil {
return nil, utils.ErrNotFound
}
return x.(*rpcclient.RpcClientPool), nil
}
// in case we don't found in cache create the connection and add this in cache
var intChan chan rpcclient.RpcClientConnection
var connCfg *config.RPCConn
if internalChan, has := cM.rpcInternal[connID]; has {
connCfg = cM.cfg.RPCConns()[utils.MetaInternal]
intChan = internalChan
} else {
connCfg = cM.cfg.RPCConns()[connID]
}
connPool, err = NewRPCPool(connCfg.Strategy,
cM.cfg.TlsCfg().ClientKey,
cM.cfg.TlsCfg().ClientCerificate, cM.cfg.TlsCfg().CaCertificate,
cM.cfg.GeneralCfg().ConnectAttempts, cM.cfg.GeneralCfg().Reconnects,
cM.cfg.GeneralCfg().ConnectTimeout, cM.cfg.GeneralCfg().ReplyTimeout,
connCfg.Conns, intChan, false)
if err != nil {
return
}
Cache.Set(utils.CacheRPCConnections, connID, connPool, nil,
true, utils.NonTransactional)
return
}
func (cM *ConnManager) Call(connIDs []string, method string, arg, reply interface{}) (err error) {
for _, connID := range connIDs {
conn, err := cM.getConn(connID)
if err == nil {
if err := conn.Call(method, arg, reply); err != nil {
return err
}
}
}
return nil
}