41 lines
2.1 KiB
C#
41 lines
2.1 KiB
C#
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using FileSearch.Logic.Model.Engine;
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namespace FileSearch.Logic.Model.CriterionSchemas
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{
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internal class SizeCriterion : CriterionBase, ICriterion
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{
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private readonly long? _minLengthInBytes;
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private readonly long? _maxLengthInBytes;
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public SizeCriterion(long? minLengthInBytes, long? maxLengthInBytes)
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{
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if (minLengthInBytes != null && minLengthInBytes < 0)
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throw new ArgumentOutOfRangeException("minLengthInBytes", "Указанная минимальная длина не может быть меньше 0 байт.");
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if (maxLengthInBytes != null && maxLengthInBytes < 0)
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throw new ArgumentOutOfRangeException("maxLengthInBytes", "Указанная максимальная длина не может быть меньше 0 байт.");
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if (minLengthInBytes == null && maxLengthInBytes == null)
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throw new ArgumentException("Невозможно установить как минимальное, так и максимальное значения равными нулю.");
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if (minLengthInBytes != null && maxLengthInBytes != null && minLengthInBytes > maxLengthInBytes)
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throw new ArgumentException("Максимальное значение должно быть больше или равно минимальному.");
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_minLengthInBytes = minLengthInBytes;
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_maxLengthInBytes = maxLengthInBytes;
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}
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public string Name { get { return "File sizes"; } }
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public CriterionWeight Weight { get { return CriterionWeight.Medium; } }
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public bool DirectorySupport { get { return false; } }
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public bool FileSupport { get { return true; } }
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public bool IsMatch(FileSystemInfo fileSystemInfo, ICriterionContext context)
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{
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var file = (FileInfo)fileSystemInfo;
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return (_minLengthInBytes == null || file.Length >= _minLengthInBytes.Value)
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&& (_maxLengthInBytes == null || file.Length <= _maxLengthInBytes.Value);
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}
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}
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}
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