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rpc_timeout.go
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rpc_timeout.go
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// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"github.com/cloudwego/kitex/client"
"github.com/cloudwego/kitex/pkg/klog"
"github.com/cloudwego/kitex/pkg/rpcinfo"
"github.com/cloudwego/kitex/pkg/rpctimeout"
"github.com/kitex-contrib/config-nacos/nacos"
"github.com/kitex-contrib/config-nacos/utils"
"github.com/nacos-group/nacos-sdk-go/vo"
)
// WithRPCTimeout sets the RPC timeout policy from nacos configuration center.
func WithRPCTimeout(dest, src string, nacosClient nacos.Client, opts utils.Options) []client.Option {
param, err := nacosClient.ClientConfigParam(&nacos.ConfigParamConfig{
Category: rpcTimeoutConfigName,
ServerServiceName: dest,
ClientServiceName: src,
})
if err != nil {
panic(err)
}
for _, f := range opts.NacosCustomFunctions {
f(¶m)
}
uniqueID := nacos.GetUniqueID()
return []client.Option{
client.WithTimeoutProvider(initRPCTimeoutContainer(param, dest, nacosClient, uniqueID)),
client.WithCloseCallbacks(func() error {
// cancel the configuration listener when client is closed.
return nacosClient.DeregisterConfig(param, uniqueID)
}),
}
}
func initRPCTimeoutContainer(param vo.ConfigParam, dest string,
nacosClient nacos.Client, uniqueID int64,
) rpcinfo.TimeoutProvider {
rpcTimeoutContainer := rpctimeout.NewContainer()
onChangeCallback := func(data string, parser nacos.ConfigParser) {
configs := map[string]*rpctimeout.RPCTimeout{}
err := parser.Decode(param.Type, data, &configs)
if err != nil {
klog.Warnf("[nacos] %s client nacos rpc timeout: unmarshal data %s failed: %s, skip...", dest, data, err)
return
}
rpcTimeoutContainer.NotifyPolicyChange(configs)
}
nacosClient.RegisterConfigCallback(param, onChangeCallback, uniqueID)
return rpcTimeoutContainer
}