public ICompressedItemBuilder Create(CompressedKey key)
{
// TODO: break down into buckets to avoid files-per-folder limits
string physicalPath = Path.Combine(_storagePath, Guid.NewGuid().ToString("n"));
return(new ItemBuilder(key, physicalPath));
}
public ICompressedItemHandle Open(CompressedKey key)
{
lock (_itemsLock)
{
ItemHandle handle;
if (_items.TryGetValue(key, out handle))
{
return(handle.Clone());
}
return(null);
}
}
private void AddHandleInDictionary(CompressedKey key, ItemHandle handle)
{
lock (_itemsLock)
{
ItemHandle addingHandle = handle.Clone();
ItemHandle existingHandle;
if (_items.TryGetValue(key, out existingHandle))
{
existingHandle.Dispose();
}
_items[key] = addingHandle;
}
}
public ICompressedItemHandle Commit(ICompressedItemBuilder builder)
{
var itemBuilder = (ItemBuilder)builder;
CompressedKey key = itemBuilder.Key;
var item = new Item
{
PhysicalPath = itemBuilder.PhysicalPath,
CompressedLength = itemBuilder.Stream.Length
};
itemBuilder.Stream.Close();
var handle = new ItemHandle(item);
AddHandleInDictionary(key, handle);
return(handle);
}
public ItemBuilder(CompressedKey key, string physicalPath)
{
Key = key;
PhysicalPath = physicalPath;
Stream = new FileStream(PhysicalPath, FileMode.Create, FileAccess.Write, FileShare.None);
}