dubbo.apache.org/dubbo-go/v3@v3.1.1/xds/balancer/clusterimpl/config.go (about)

     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   * contributor license agreements.  See the NOTICE file distributed with
     4   * this work for additional information regarding copyright ownership.
     5   * The ASF licenses this file to You under the Apache License, Version 2.0
     6   * (the "License"); you may not use this file except in compliance with
     7   * the License.  You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  /*
    19   *
    20   * Copyright 2020 gRPC authors.
    21   *
    22   */
    23  
    24  package clusterimpl
    25  
    26  import (
    27  	"encoding/json"
    28  )
    29  
    30  import (
    31  	"google.golang.org/grpc/serviceconfig"
    32  )
    33  
    34  import (
    35  	internalserviceconfig "dubbo.apache.org/dubbo-go/v3/xds/utils/serviceconfig"
    36  )
    37  
    38  // DropConfig contains the category, and drop ratio.
    39  type DropConfig struct {
    40  	Category           string
    41  	RequestsPerMillion uint32
    42  }
    43  
    44  // LBConfig is the balancer config for cluster_impl balancer.
    45  type LBConfig struct {
    46  	serviceconfig.LoadBalancingConfig `json:"-"`
    47  
    48  	Cluster                 string                                `json:"cluster,omitempty"`
    49  	EDSServiceName          string                                `json:"edsServiceName,omitempty"`
    50  	LoadReportingServerName *string                               `json:"lrsLoadReportingServerName,omitempty"`
    51  	MaxConcurrentRequests   *uint32                               `json:"maxConcurrentRequests,omitempty"`
    52  	DropCategories          []DropConfig                          `json:"dropCategories,omitempty"`
    53  	ChildPolicy             *internalserviceconfig.BalancerConfig `json:"childPolicy,omitempty"`
    54  }
    55  
    56  func parseConfig(c json.RawMessage) (*LBConfig, error) {
    57  	var cfg LBConfig
    58  	if err := json.Unmarshal(c, &cfg); err != nil {
    59  		return nil, err
    60  	}
    61  	return &cfg, nil
    62  }
    63  
    64  func equalDropCategories(a, b []DropConfig) bool {
    65  	if len(a) != len(b) {
    66  		return false
    67  	}
    68  	for i := range a {
    69  		if a[i] != b[i] {
    70  			return false
    71  		}
    72  	}
    73  	return true
    74  }