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https://github.com/cgrates/cgrates.git
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110 lines
4.1 KiB
Go
110 lines
4.1 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package engine
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import (
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"fmt"
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"strings"
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"time"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/utils"
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"github.com/cgrates/rpcclient"
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)
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// NewRPCPool returns a new pool of connection with the given configuration
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func NewRPCPool(dispatchStrategy string, keyPath, certPath, caPath string, connAttempts, reconnects int,
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connectTimeout, replyTimeout time.Duration, rpcConnCfgs []*config.RemoteHost,
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internalConnChan chan rpcclient.ClientConnector, lazyConnect bool) (*rpcclient.RPCPool, error) {
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var rpcClient *rpcclient.RPCClient
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var err error
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rpcPool := rpcclient.NewRPCPool(dispatchStrategy, replyTimeout)
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atLestOneConnected := false // If one connected we don't longer return errors
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for _, rpcConnCfg := range rpcConnCfgs {
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if rpcConnCfg.Address == utils.MetaInternal {
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rpcClient, err = rpcclient.NewRPCClient("", "", rpcConnCfg.TLS, keyPath, certPath, caPath, connAttempts,
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reconnects, connectTimeout, replyTimeout, rpcclient.InternalRPC, internalConnChan, lazyConnect)
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} else if utils.SliceHasMember([]string{utils.EmptyString, utils.MetaGOB, utils.MetaJSON}, rpcConnCfg.Transport) {
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codec := rpcclient.GOBrpc
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if rpcConnCfg.Transport != "" {
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codec = rpcConnCfg.Transport
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}
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rpcClient, err = rpcclient.NewRPCClient(utils.TCP, rpcConnCfg.Address, rpcConnCfg.TLS, keyPath, certPath, caPath,
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connAttempts, reconnects, connectTimeout, replyTimeout, codec, nil, lazyConnect)
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} else {
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return nil, fmt.Errorf("Unsupported transport: <%s>", rpcConnCfg.Transport)
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}
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if err == nil {
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atLestOneConnected = true
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}
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rpcPool.AddClient(rpcClient)
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}
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if atLestOneConnected {
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err = nil
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}
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return rpcPool, err
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}
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// IntRPC is the global variable that is used to comunicate with all the subsystems internally
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var IntRPC *RPCClientSet
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// NewRPCClientSet initilalizates the map of connections
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func NewRPCClientSet() (s *RPCClientSet) {
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return &RPCClientSet{set: make(map[string]*rpcclient.RPCClient)}
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}
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// RPCClientSet is a RPC ClientConnector for the internal subsystems
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type RPCClientSet struct {
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set map[string]*rpcclient.RPCClient
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}
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// AddInternalRPCClient creates and adds to the set a new rpc client using the provided configuration
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func (s *RPCClientSet) AddInternalRPCClient(name string, connChan chan rpcclient.ClientConnector) {
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rpc, err := rpcclient.NewRPCClient(utils.EmptyString, utils.EmptyString, false,
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utils.EmptyString, utils.EmptyString, utils.EmptyString,
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config.CgrConfig().GeneralCfg().ConnectAttempts, config.CgrConfig().GeneralCfg().Reconnects,
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config.CgrConfig().GeneralCfg().ConnectTimeout, config.CgrConfig().GeneralCfg().ReplyTimeout,
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rpcclient.InternalRPC, connChan, true)
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if err != nil {
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utils.Logger.Err(fmt.Sprintf("<%s> Error adding %s to the set: %s", utils.InternalRPCSet, name, err.Error()))
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return
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}
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s.set[name] = rpc
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}
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// GetInternalChanel is used when RPCClientSet is passed as internal connection for RPCPool
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func (s *RPCClientSet) GetInternalChanel() chan rpcclient.ClientConnector {
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connChan := make(chan rpcclient.ClientConnector, 1)
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connChan <- s
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return connChan
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}
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// Call the implementation of the rpcclient.ClientConnector interface
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func (s *RPCClientSet) Call(method string, args interface{}, reply interface{}) error {
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methodSplit := strings.Split(method, ".")
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if len(methodSplit) != 2 {
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return rpcclient.ErrUnsupporteServiceMethod
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}
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conn, has := s.set[methodSplit[0]]
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if !has {
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return rpcclient.ErrUnsupporteServiceMethod
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}
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return conn.Call(method, args, reply)
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}
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