private static MappedFileAttribute GetMappedFileAttribute(this MappedFiles value)
{
FieldInfo fieldInfo = value.GetType().GetField(value.ToString());
MappedFileAttribute[] attributes =
fieldInfo.GetCustomAttributes(typeof(MappedFileAttribute), false) as MappedFileAttribute[];
return((attributes.Length != 0) ? attributes[0] : null);
}
/// <summary>
/// Creates the new map file.
/// </summary>
private void CreateNewMapFile()
{
lock (_mapLock)
{
var count = (MappedFiles.Count() + 1);
var hash = (Name + "-" + count).GetHashCode();
MappedFiles.Add(hash,
MappedFile.CreateNewMap(hash + ".bin", Location, MaxDocumentSize,
MaxDocumentCountPerFile));
}
}
/// <summary>
/// Stores the specified key.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="document">The document.</param>
/// <exception cref="System.Exception">Document with this key already exists.</exception>
public void Add(string key, string document)
{
//get a map with a free space
var keyHash = key.GetHashCode();
var freeMap = MappedFiles.FirstOrDefault(mf => mf.Value.BlocksFree > 0);
if (freeMap.Value == null)
{
CreateNewMapFile();
freeMap = MappedFiles.FirstOrDefault(mf => mf.Value.BlocksFree > 0);
}
var index = freeMap.Value.Write(document);
if (index < 0)
{
Add(key, document);
return;
}
KeyTree.Insert(keyHash, new DataPointer {
FileId = freeMap.Key, Pointer = index, Size = document.Length
});
}
public static string GetFileNameWithoutExtension(this MappedFiles value)
{
return(Path.ChangeExtension(value.GetFileName(), null));
}
public static string GetFileName(this MappedFiles value)
{
return(mappings[value].Filename);
}
