github.com/hxx258456/ccgo@v0.0.5-0.20230213014102-48b35f46f66f/grpc/xds/internal/balancer/clusterimpl/config.go (about)

     1  /*
     2   *
     3   * Copyright 2020 gRPC authors.
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License");
     6   * you may not use this file except in compliance with the License.
     7   * 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  package clusterimpl
    20  
    21  import (
    22  	"encoding/json"
    23  
    24  	internalserviceconfig "github.com/hxx258456/ccgo/grpc/internal/serviceconfig"
    25  	"github.com/hxx258456/ccgo/grpc/serviceconfig"
    26  )
    27  
    28  // DropConfig contains the category, and drop ratio.
    29  type DropConfig struct {
    30  	Category           string
    31  	RequestsPerMillion uint32
    32  }
    33  
    34  // LBConfig is the balancer config for cluster_impl balancer.
    35  type LBConfig struct {
    36  	serviceconfig.LoadBalancingConfig `json:"-"`
    37  
    38  	Cluster                 string                                `json:"cluster,omitempty"`
    39  	EDSServiceName          string                                `json:"edsServiceName,omitempty"`
    40  	LoadReportingServerName *string                               `json:"lrsLoadReportingServerName,omitempty"`
    41  	MaxConcurrentRequests   *uint32                               `json:"maxConcurrentRequests,omitempty"`
    42  	DropCategories          []DropConfig                          `json:"dropCategories,omitempty"`
    43  	ChildPolicy             *internalserviceconfig.BalancerConfig `json:"childPolicy,omitempty"`
    44  }
    45  
    46  func parseConfig(c json.RawMessage) (*LBConfig, error) {
    47  	var cfg LBConfig
    48  	if err := json.Unmarshal(c, &cfg); err != nil {
    49  		return nil, err
    50  	}
    51  	return &cfg, nil
    52  }
    53  
    54  func equalDropCategories(a, b []DropConfig) bool {
    55  	if len(a) != len(b) {
    56  		return false
    57  	}
    58  	for i := range a {
    59  		if a[i] != b[i] {
    60  			return false
    61  		}
    62  	}
    63  	return true
    64  }