public VolumeFile OpenOrCreateFile(VolumePath path, bool ksmDefault = false)
{
VolumeFile file = Open(path, ksmDefault) as VolumeFile;
if (file == null)
{
file = CreateFile(path);
}
return(file);
}
public bool IsRoomFor(string name, FileContent fileContent)
{
VolumeFile existingFile = Open(name);
int usedByThisFile = 0;
if (existingFile != null)
{
usedByThisFile = existingFile.ReadAll().Size;
}
return(INFINITE_CAPACITY == FreeSpace || FreeSpace + usedByThisFile >= fileContent.Size);
}
public override bool RenameFile(string name, string newName)
{
VolumeFile file = Open(name);
if (file != null)
{
// Add the original file content under the new name
files.Add(newName, files[file.Name]);
// Then remove the old file content under the old name
files.Remove(file.Name);
return(true);
}
return(false);
}
public bool IsRoomFor(VolumePath path, FileContent fileContent)
{
VolumeItem existing = Open(path);
if (existing is VolumeDirectory)
{
throw new KOSPersistenceException("'" + path + "' is a directory");
}
VolumeFile existingFile = existing as VolumeFile;
int usedByThisFile = 0;
if (existingFile != null)
{
usedByThisFile = existingFile.ReadAll().Size;
}
return(INFINITE_CAPACITY == FreeSpace || FreeSpace + usedByThisFile >= fileContent.Size);
}
public VolumeFile SaveFile(VolumeFile volumeFile)
{
return(SaveFile(volumeFile.Path, volumeFile.ReadAll()));
}
//public abstract bool AppendToFile(string name, string textToAppend);
//public abstract bool AppendToFile(string name, byte[] bytesToAppend);
public VolumeFile Save(VolumeFile volumeFile)
{
return(Save(volumeFile.Name, volumeFile.ReadAll()));
}
private int FileInfoComparer(VolumeFile a, VolumeFile b)
{
return(string.CompareOrdinal(a.Name, b.Name));
}
protected bool CopyFileToDirectory(VolumeFile volumeFile, VolumeDirectory volumeDirectory,
bool verifyFreeSpace)
{
return(volumeDirectory.Volume.SaveFile(volumeDirectory.Path.Combine(volumeFile.Name), volumeFile.ReadAll(),
verifyFreeSpace) != null);
}
protected bool CopyFile(VolumeFile volumeFile, GlobalPath destinationPath, Volume targetVolume,
bool verifyFreeSpace)
{
return(targetVolume.SaveFile(destinationPath, volumeFile.ReadAll(), verifyFreeSpace) != null);
}
