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uniform_route.go
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uniform_route.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 v3router
import (
"dubbo.apache.org/dubbo-go/v3/common"
"dubbo.apache.org/dubbo-go/v3/config"
"dubbo.apache.org/dubbo-go/v3/config_center"
"dubbo.apache.org/dubbo-go/v3/protocol"
)
const (
name = "uniform-router"
)
// UniformRouter have
type UniformRouter struct {
uniformRules []*UniformRule
}
// NewUniformRouter construct an NewConnCheckRouter via url
func NewUniformRouter(dubboRoutes []*config.DubboRoute, destinationMap map[string]map[string]string) *UniformRouter {
uniformRules := make([]*UniformRule, 0)
for _, v := range dubboRoutes {
uniformRules = append(uniformRules, newUniformRule(v, destinationMap))
}
return &UniformRouter{
uniformRules: uniformRules,
}
}
// Route gets a list of routed invoker
func (r *UniformRouter) Route(invokers []protocol.Invoker, url *common.URL, invocation protocol.Invocation) []protocol.Invoker {
resultInvokers := make([]protocol.Invoker, 0)
for _, v := range r.uniformRules {
if resultInvokers = v.route(invokers, url, invocation); len(resultInvokers) == 0 {
continue
}
// once there is a uniformRule successfully get target invoker lists, return it
return resultInvokers
}
// return s empty invoker list
return resultInvokers
}
// Process there is no process needs for uniform Router, as it upper struct RouterChain has done it
func (r *UniformRouter) Process(event *config_center.ConfigChangeEvent) {
}
// Name get name of ConnCheckerRouter
func (r *UniformRouter) Name() string {
return name
}
// Priority get Router priority level
func (r *UniformRouter) Priority() int64 {
return 0
}
// URL Return URL in router
func (r *UniformRouter) URL() *common.URL {
return nil
}