github.com/m3db/m3@v1.5.0/src/aggregator/tools/deploy/planner_options.go (about)

     1  // Copyright (c) 2017 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package deploy
    22  
    23  import (
    24  	"github.com/m3db/m3/src/cluster/services"
    25  	xsync "github.com/m3db/m3/src/x/sync"
    26  )
    27  
    28  const (
    29  	defaultPlannerWorkerPoolSize = 16
    30  	defaultElectionKeyFmt        = "/shardset/%s/lock"
    31  	defaultMaxStepSize           = 0
    32  )
    33  
    34  // PlannerOptions provide a set of options for the deployment planner.
    35  type PlannerOptions interface {
    36  	// SetLeaderService sets the leader service.
    37  	SetLeaderService(value services.LeaderService) PlannerOptions
    38  
    39  	// LeaderService returns the leader service.
    40  	LeaderService() services.LeaderService
    41  
    42  	// SetWorkerPool sets the worker pool.
    43  	SetWorkerPool(value xsync.WorkerPool) PlannerOptions
    44  
    45  	// WorkerPool returns the worker pool.
    46  	WorkerPool() xsync.WorkerPool
    47  
    48  	// SetElectionKeyFmt sets the election key format.
    49  	SetElectionKeyFmt(value string) PlannerOptions
    50  
    51  	// ElectionKeyFmt returns the election key format.
    52  	ElectionKeyFmt() string
    53  
    54  	// SetMaxStepSize sets the maximum step size (i.e., number of instances per step).
    55  	SetMaxStepSize(value int) PlannerOptions
    56  
    57  	// MaxStepSize returns the maximum step size (i.e., number of instances per step).
    58  	MaxStepSize() int
    59  }
    60  
    61  type plannerOptions struct {
    62  	leaderService  services.LeaderService
    63  	workerPool     xsync.WorkerPool
    64  	electionKeyFmt string
    65  	maxStepSize    int
    66  }
    67  
    68  // NewPlannerOptions create a new set of options for the deployment planner.
    69  func NewPlannerOptions() PlannerOptions {
    70  	workers := xsync.NewWorkerPool(defaultPlannerWorkerPoolSize)
    71  	workers.Init()
    72  	return &plannerOptions{
    73  		workerPool:     workers,
    74  		electionKeyFmt: defaultElectionKeyFmt,
    75  		maxStepSize:    defaultMaxStepSize,
    76  	}
    77  }
    78  
    79  func (o *plannerOptions) SetLeaderService(value services.LeaderService) PlannerOptions {
    80  	opts := *o
    81  	opts.leaderService = value
    82  	return &opts
    83  }
    84  
    85  func (o *plannerOptions) LeaderService() services.LeaderService {
    86  	return o.leaderService
    87  }
    88  
    89  func (o *plannerOptions) SetWorkerPool(value xsync.WorkerPool) PlannerOptions {
    90  	opts := *o
    91  	opts.workerPool = value
    92  	return &opts
    93  }
    94  
    95  func (o *plannerOptions) WorkerPool() xsync.WorkerPool {
    96  	return o.workerPool
    97  }
    98  
    99  func (o *plannerOptions) SetElectionKeyFmt(value string) PlannerOptions {
   100  	opts := *o
   101  	opts.electionKeyFmt = value
   102  	return &opts
   103  }
   104  
   105  func (o *plannerOptions) ElectionKeyFmt() string {
   106  	return o.electionKeyFmt
   107  }
   108  
   109  func (o *plannerOptions) SetMaxStepSize(value int) PlannerOptions {
   110  	opts := *o
   111  	opts.maxStepSize = value
   112  	return &opts
   113  }
   114  
   115  func (o *plannerOptions) MaxStepSize() int {
   116  	return o.maxStepSize
   117  }