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config.go
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/
config.go
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// Copyright 2020 Douyu
//
// 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 grpc
import (
"time"
"github.com/douyu/jupiter/pkg/conf"
"github.com/douyu/jupiter/pkg/core/constant"
"github.com/douyu/jupiter/pkg/core/ecode"
"github.com/douyu/jupiter/pkg/core/singleton"
"github.com/douyu/jupiter/pkg/xlog"
"github.com/spf13/cast"
"google.golang.org/grpc"
"google.golang.org/grpc/balancer/roundrobin"
"google.golang.org/grpc/keepalive"
)
// Config ...
type Config struct {
Name string // config's name
BalancerName string
Addr string
DialTimeout time.Duration
ReadTimeout time.Duration
KeepAlive *keepalive.ClientParameters
RegistryConfig string
logger *xlog.Logger
dialOptions []grpc.DialOption
SlowThreshold time.Duration
Debug bool
DisableSentinelInterceptor bool
DisableTraceInterceptor bool
DisableAidInterceptor bool
DisableTimeoutInterceptor bool
DisableMetricInterceptor bool
DisableAccessInterceptor bool
AccessInterceptorLevel string
}
// DefaultConfig ...
func DefaultConfig() *Config {
return &Config{
BalancerName: roundrobin.Name, // round robin by default
DialTimeout: cast.ToDuration("3s"),
ReadTimeout: cast.ToDuration("1s"),
SlowThreshold: cast.ToDuration("600ms"),
AccessInterceptorLevel: "info",
KeepAlive: &keepalive.ClientParameters{
Time: 5 * time.Minute,
Timeout: 20 * time.Second,
PermitWithoutStream: true,
},
RegistryConfig: constant.ConfigKey("registry.default"),
}
}
// StdConfig ...
func StdConfig(name string) *Config {
return RawConfig(constant.ConfigKey("grpc." + name))
}
// RawConfig ...
func RawConfig(key string) *Config {
var config = DefaultConfig()
config.Name = key
if err := conf.UnmarshalKey(key, &config); err != nil {
config.logger.Panic("client grpc parse config panic", xlog.FieldErrKind(ecode.ErrKindUnmarshalConfigErr), xlog.FieldErr(err), xlog.FieldKey(key), xlog.FieldValueAny(config))
}
return config
}
// WithLogger ...
func (config *Config) WithLogger(logger *xlog.Logger) *Config {
config.logger = logger
return config
}
// WithDialOption ...
func (config *Config) WithDialOption(opts ...grpc.DialOption) *Config {
if config.dialOptions == nil {
config.dialOptions = make([]grpc.DialOption, 0)
}
config.dialOptions = append(config.dialOptions, opts...)
return config
}
// Build ...
func (config *Config) Build() *grpc.ClientConn {
config.logger = xlog.Jupiter().Named(ecode.ModClientGrpc)
if config.Debug {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(debugUnaryClientInterceptor(config.Addr)),
)
}
if !config.DisableAidInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(aidUnaryClientInterceptor()),
)
}
if !config.DisableTimeoutInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(timeoutUnaryClientInterceptor(config.logger, config.ReadTimeout, config.SlowThreshold)),
)
}
if !config.DisableTraceInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(TraceUnaryClientInterceptor()),
)
}
if !config.DisableAccessInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(loggerUnaryClientInterceptor(config.logger, config.Name, config.AccessInterceptorLevel)),
)
}
if !config.DisableMetricInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(metricUnaryClientInterceptor(config.Name)),
)
}
if !config.DisableSentinelInterceptor {
config.dialOptions = append(config.dialOptions,
grpc.WithChainUnaryInterceptor(sentinelUnaryClientInterceptor(config.Addr)),
)
}
return newGRPCClient(config)
}
// Singleton returns a singleton client conn.
func (config *Config) Singleton() (*grpc.ClientConn, error) {
if val, ok := singleton.Load(constant.ModuleClientGrpc, config.Name); ok && val != nil {
return val.(*grpc.ClientConn), nil
}
cc := config.Build()
singleton.Store(constant.ModuleClientGrpc, config.Name, cc)
return cc, nil
}
// MustSingleton panics when error found.
func (config *Config) MustSingleton() *grpc.ClientConn {
cc, err := config.Singleton()
if err != nil {
config.logger.Panic("client grpc build client conn panic")
}
return cc
}