github.com/matrixorigin/matrixone@v1.2.0/pkg/logservice/option.go (about)

     1  // Copyright 2021 - 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package logservice
    16  
    17  import (
    18  	"context"
    19  	pb "github.com/matrixorigin/matrixone/pkg/pb/logservice"
    20  	"github.com/matrixorigin/matrixone/pkg/util"
    21  
    22  	"github.com/matrixorigin/matrixone/pkg/common/morpc"
    23  	"github.com/matrixorigin/matrixone/pkg/common/runtime"
    24  	"github.com/matrixorigin/matrixone/pkg/taskservice"
    25  )
    26  
    27  // Option is utility that sets callback for Service.
    28  type Option func(*Service)
    29  
    30  // WithBackendFilter sets filter via which could select remote backend.
    31  func WithBackendFilter(filter func(morpc.Message, string) bool) Option {
    32  	return func(s *Service) {
    33  		s.options.backendFilter = filter
    34  	}
    35  }
    36  
    37  // WithRuntime sets runtime
    38  func WithRuntime(runtime runtime.Runtime) Option {
    39  	return func(s *Service) {
    40  		s.runtime = runtime
    41  	}
    42  }
    43  
    44  // WithTaskStorageFactory set up the special task storage factory
    45  func WithTaskStorageFactory(factory taskservice.TaskStorageFactory) Option {
    46  	return func(s *Service) {
    47  		s.task.storageFactory = factory
    48  	}
    49  }
    50  
    51  // WithConfigData saves the data from the config file
    52  func WithConfigData(data map[string]*pb.ConfigItem) Option {
    53  	return func(s *Service) {
    54  		if s.config == nil {
    55  			s.config = util.NewConfigData(data)
    56  		} else {
    57  			util.MergeConfig(s.config, data)
    58  		}
    59  	}
    60  }
    61  
    62  type ContextKey string
    63  
    64  const (
    65  	BackendOption ContextKey = "morpc.BackendOption"
    66  	ClientOption  ContextKey = "morpc.ClientOption"
    67  )
    68  
    69  func GetBackendOptions(ctx context.Context) []morpc.BackendOption {
    70  	if v := ctx.Value(BackendOption); v != nil {
    71  		return v.([]morpc.BackendOption)
    72  	}
    73  	return nil
    74  }
    75  
    76  func GetClientOptions(ctx context.Context) []morpc.ClientOption {
    77  	if v := ctx.Value(ClientOption); v != nil {
    78  		return v.([]morpc.ClientOption)
    79  	}
    80  	return nil
    81  }
    82  
    83  func SetBackendOptions(ctx context.Context, opts ...morpc.BackendOption) context.Context {
    84  	return context.WithValue(ctx, BackendOption, opts)
    85  }
    86  
    87  func SetClientOptions(ctx context.Context, opts ...morpc.ClientOption) context.Context {
    88  	return context.WithValue(ctx, ClientOption, opts)
    89  }