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rpc_timeout.go
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/
rpc_timeout.go
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// Copyright 2023 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 (
"context"
"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-zookeeper/utils"
"github.com/kitex-contrib/config-zookeeper/zookeeper"
)
// WithRPCTimeout sets the RPC timeout policy from zookeeper configuration center.
func WithRPCTimeout(dest, src string, zookeeperClient zookeeper.Client, opts utils.Options) []client.Option {
param, err := zookeeperClient.ClientConfigParam(&zookeeper.ConfigParamConfig{
Category: rpcTimeoutConfigName,
ServerServiceName: dest,
ClientServiceName: src,
})
if err != nil {
panic(err)
}
for _, f := range opts.ZookeeperCustomFunctions {
f(¶m)
}
uid := zookeeper.GetUniqueID()
path := param.Prefix + "/" + param.Path
return []client.Option{
client.WithTimeoutProvider(initRPCTimeoutContainer(path, uid, dest, zookeeperClient)),
client.WithCloseCallbacks(func() error {
// cancel the configuration listener when client is closed.
zookeeperClient.DeregisterConfig(path, uid)
return nil
}),
}
}
func initRPCTimeoutContainer(path string, uniqueID int64, dest string, zookeeperClient zookeeper.Client) rpcinfo.TimeoutProvider {
rpcTimeoutContainer := rpctimeout.NewContainer()
onChangeCallback := func(restoreDefault bool, data string, parser zookeeper.ConfigParser) {
configs := map[string]*rpctimeout.RPCTimeout{}
if !restoreDefault {
err := parser.Decode(data, &configs)
if err != nil {
klog.Warnf("[zookeeper] %s client zookeeper rpc timeout: unmarshal data %s failed: %s, skip...", path, data, err)
return
}
}
rpcTimeoutContainer.NotifyPolicyChange(configs)
}
zookeeperClient.RegisterConfigCallback(context.Background(), path, uniqueID, onChangeCallback)
return rpcTimeoutContainer
}