go.temporal.io/server@v1.23.0/common/cluster/fx.go (about)

     1  // The MIT License
     2  //
     3  // Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
     4  //
     5  // Copyright (c) 2020 Uber Technologies, Inc.
     6  //
     7  // Permission is hereby granted, free of charge, to any person obtaining a copy
     8  // of this software and associated documentation files (the "Software"), to deal
     9  // in the Software without restriction, including without limitation the rights
    10  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    11  // copies of the Software, and to permit persons to whom the Software is
    12  // furnished to do so, subject to the following conditions:
    13  //
    14  // The above copyright notice and this permission notice shall be included in
    15  // all copies or substantial portions of the Software.
    16  //
    17  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    18  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    19  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    20  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    21  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    22  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    23  // THE SOFTWARE.
    24  
    25  package cluster
    26  
    27  import (
    28  	"context"
    29  
    30  	"go.uber.org/fx"
    31  
    32  	"go.temporal.io/server/common"
    33  )
    34  
    35  var MetadataLifetimeHooksModule = fx.Options(
    36  	fx.Provide(NewMetadataFromConfig),
    37  	fx.Invoke(MetadataLifetimeHooks),
    38  	fx.Provide(fx.Annotate(
    39  		func(p Metadata) common.Pingable { return p },
    40  		fx.ResultTags(`group:"deadlockDetectorRoots"`),
    41  	)),
    42  )
    43  
    44  func MetadataLifetimeHooks(
    45  	lc fx.Lifecycle,
    46  	clusterMetadata Metadata,
    47  ) {
    48  	lc.Append(
    49  		fx.Hook{
    50  			OnStart: func(context.Context) error {
    51  				clusterMetadata.Start()
    52  				return nil
    53  			},
    54  			OnStop: func(context.Context) error {
    55  				clusterMetadata.Stop()
    56  				return nil
    57  			},
    58  		},
    59  	)
    60  }