github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/x/convert/unit.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 convert
    22  
    23  import xtime "github.com/m3db/m3/src/x/time"
    24  
    25  // UnitForM3DB converts a time unit into one that is suitable for m3db.
    26  // The is done in an explicit way for better performance and the logic is
    27  // ensured though unit test.
    28  func UnitForM3DB(unit xtime.Unit) xtime.Unit {
    29  	switch unit {
    30  	case xtime.Second, xtime.Minute, xtime.Hour, xtime.Day, xtime.Year:
    31  		return xtime.Second
    32  	case xtime.Nanosecond, xtime.Millisecond, xtime.Microsecond:
    33  		return unit
    34  	default:
    35  		return xtime.Nanosecond
    36  	}
    37  }