/// <summary>
/// Opens a Storage using the specified opener.
/// </summary>
/// <param name="name">The name of the substorage.</param>
/// <param name="mode">The Storagemode to open the substorage.</param>
/// <param name="writable">Whether to open the storage as writable. If
/// the parent storage is readonly, the substorage cannot be opened
/// as writable (InvalidoperationException will be thrown).</param>
/// <param name="opener">The IStorageOpener to use to open the storage.</param>
/// <param name="created">Out parameter indicated whether the storage was created (or opened)</param>
/// <returns>The Storage.</returns>
internal static IStorage OpenStorage(string name, StorageMode mode, bool writable, IStorageOpener opener)
{
IStorage storage = null;
try
{
switch (mode)
{
case (StorageMode.Create):
opener.CreateStorage(name, out storage);
break;
case (StorageMode.Open):
if (!opener.OpenStorage(name, writable, out storage))
{
throw new COMException("StorageName does not exist", STG_E.FILENOTFOUND);
}
break;
case (StorageMode.OpenOrCreate):
if (!opener.OpenStorage(name, writable, out storage))
{
opener.CreateStorage(name, out storage);
}
break;
}
}
catch (COMException e)
{
ThrowStorageException(e);
}
return(storage);
}
/// <summary>
/// Opens a Storage using the specified opener.
/// </summary>
/// <param name="name">The name of the substorage.</param>
/// <param name="mode">The Storagemode to open the substorage.</param>
/// <param name="writable">Whether to open the storage as writable. If
/// the parent storage is readonly, the substorage cannot be opened
/// as writable (InvalidoperationException will be thrown).</param>
/// <param name="opener">The IStorageOpener to use to open the storage.</param>
/// <param name="created">Out parameter indicated whether the storage was created (or opened)</param>
/// <returns>The Storage.</returns>
internal static IStorage OpenStorage(string name, StorageMode mode, bool writable, IStorageOpener opener)
{
IStorage storage = null;
try
{
switch (mode)
{
case (StorageMode.Create):
opener.CreateStorage(name, out storage);
break;
case (StorageMode.Open):
if (!opener.OpenStorage(name, writable, out storage))
{
throw new COMException("StorageName does not exist", STG_E.FILENOTFOUND);
}
break;
case (StorageMode.OpenOrCreate):
if (!opener.OpenStorage(name, writable, out storage))
{
opener.CreateStorage(name, out storage);
}
break;
}
}
catch (COMException e)
{
ThrowStorageException(e);
}
return storage;
}
