github.com/m3db/m3@v1.5.0/src/dbnode/topology/testutil/shard.go (about)

     1  // Copyright (c) 2018 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 testutil
    22  
    23  import (
    24  	"github.com/m3db/m3/src/cluster/shard"
    25  )
    26  
    27  // Uint32Range returns a slice of all values between [from, to].
    28  func Uint32Range(from, to uint32) []uint32 {
    29  	var ids []uint32
    30  	for i := from; i <= to; i++ {
    31  		ids = append(ids, i)
    32  	}
    33  	return ids
    34  }
    35  
    36  // Shards returns a slice of shards with provided ids and state `s`.
    37  func Shards(ids []uint32, s shard.State) []shard.Shard {
    38  	var shards []shard.Shard
    39  	for _, id := range ids {
    40  		shards = append(shards, shard.NewShard(id).SetState(s))
    41  	}
    42  	return shards
    43  }
    44  
    45  // ShardsRange returns a slice of shards for all ids between [from, to],
    46  // with shard state `s`.
    47  func ShardsRange(from, to uint32, s shard.State) []shard.Shard {
    48  	return Shards(Uint32Range(from, to), s)
    49  }