/// <summary>
/// Moves the file.
/// </summary>
public void MoveFile([NotNull] string sourceFileName, [NotNull] string destFileName, [CanBeNull] IFileSystem destinationSystem = null)
{
Validate.ArgumentNotNull(sourceFileName, "sourceFileName");
Validate.ArgumentNotNull(destFileName, "destFileName");
if (destinationSystem == null || destinationSystem == this)
{
File.Move(sourceFileName, destFileName);
}
else
{
var operations = new VirtualFileOperations(this, destinationSystem);
operations.MoveFile(sourceFileName, destFileName);
}
}
/// <summary>
/// Moves or renames the file.
/// </summary>
/// <param name="sourceFileName">Name of the source file.</param>
/// <param name="destFileName">New name and path of moved file.</param>
/// <param name="destinationSystem">The destination system. Optional.</param>
/// <exception cref="FileNotFoundException">Cannot find source file to move.</exception>
/// <exception cref="DirectoryNotFoundException">Cannot find destination directory for move operation.</exception>
/// <exception cref="IOException">Destination file already exists.</exception>
public void MoveFile([NotNull] string sourceFileName, [NotNull] string destFileName, [CanBeNull] IFileSystem destinationSystem = null)
{
Validate.ArgumentNotNull(sourceFileName, "sourceFileName");
Validate.ArgumentNotNull(destFileName, "destFileName");
CheckDisposed();
// destination and source must be file names. directory names are not supported (same as native io).
bool sameSystem = destinationSystem == null || destinationSystem == this;
// move inside same volume
if (sameSystem && sourceFileName == destFileName)
{
return;
}
if (sameSystem)
{
var sourceVfn = new VirtualFileName(sourceFileName);
var destVfn = new VirtualFileName(destFileName);
NodeLocker srcResult;
NodeLocker destResult;
if (string.Equals(sourceVfn.Path, destVfn.Path, StringComparison.InvariantCultureIgnoreCase))
{
// same folder, rename file.
srcResult = destResult = FindNode(sourceVfn, true, true);
}
else if (sourceVfn.AllSegments.Count() > destVfn.AllSegments.Count())
{
// lock longer path first
srcResult = FindNode(sourceVfn, true, true);
destResult = FindNode(destVfn, true, true);
}
else
{
destResult = FindNode(destVfn, true, true);
srcResult = FindNode(sourceVfn, true, true);
}
using (srcResult)
{
var sourceDir = srcResult.Directory;
if (sourceDir == null)
{
throw new FileNotFoundException("Cannot find source file to move.", sourceFileName);
}
using (destResult)
{
var destDir = destResult.Directory;
if (destDir == null)
{
throw new DirectoryNotFoundException("Cannot find destination directory for move operation.");
}
if (destDir.FindChildEntry(destVfn.Name) != null)
{
throw new IOException("Destination file already exists.");
}
var sourceFile = sourceDir.FindChildEntry(sourceVfn.Name);
if (sourceFile == null || sourceFile is DirectoryNode)
{
throw new FileNotFoundException("Cannot find source file to move.", sourceFileName);
}
using (NodeLocker.Lock(sourceFile, true))
{
sourceDir.FindAndRemoveChildEntry(sourceVfn.Name, false);
destDir.AddChildEntry(destVfn.Name, false, sourceFile.Address);
}
}
}
}
else
{
var operations = new VirtualFileOperations(this, destinationSystem);
operations.MoveFile(sourceFileName, destFileName);
}
}
