github.com/m3db/m3@v1.5.0/src/dbnode/persist/fs/reader_open_options_matcher.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 fs
    22  
    23  import (
    24  	"fmt"
    25  
    26  	"github.com/m3db/m3/src/dbnode/persist"
    27  )
    28  
    29  // ReaderOpenOptionsMatcher is a matcher for the DataReaderOpenOptions struct
    30  type ReaderOpenOptionsMatcher struct {
    31  	ID               FileSetFileIdentifier
    32  	FileSetType      persist.FileSetType
    33  	StreamingEnabled bool
    34  }
    35  
    36  // Matches determine whether m matches a DataWriterOpenOptions
    37  func (m ReaderOpenOptionsMatcher) Matches(x interface{}) bool {
    38  	readerOpenOptions, ok := x.(DataReaderOpenOptions)
    39  	if !ok {
    40  		return false
    41  	}
    42  
    43  	if !m.ID.Namespace.Equal(readerOpenOptions.Identifier.Namespace) {
    44  		return false
    45  	}
    46  	if m.ID.Shard != readerOpenOptions.Identifier.Shard {
    47  		return false
    48  	}
    49  	if !m.ID.BlockStart.Equal(readerOpenOptions.Identifier.BlockStart) {
    50  		return false
    51  	}
    52  	if m.ID.VolumeIndex != readerOpenOptions.Identifier.VolumeIndex {
    53  		return false
    54  	}
    55  	if m.FileSetType != readerOpenOptions.FileSetType {
    56  		return false
    57  	}
    58  	if m.StreamingEnabled != readerOpenOptions.StreamingEnabled {
    59  		return false
    60  	}
    61  
    62  	return true
    63  }
    64  
    65  func (m ReaderOpenOptionsMatcher) String() string {
    66  	return fmt.Sprintf(
    67  		"namespace: %s, shard: %d, blockstart: %d, volumeIndex: %d, filesetType: %s, streamingEnabled: %t", // nolint: lll
    68  		m.ID.Namespace.String(), m.ID.Shard, m.ID.BlockStart.Seconds(), m.ID.VolumeIndex,
    69  		m.FileSetType, m.StreamingEnabled,
    70  	)
    71  }