protected virtual void OnEvent(SyncEventItem e)
{
if (Event != null)
{
Event(this, e);
}
}
/// <summary>
/// Compare Physical Files with Virtual Files
/// </summary>
/// <param name="pPhysicalRootFolder"></param>
internal void Compare(PhysicalRootFolder pPhysicalRootFolder)
{
//Note : TempPhysicalFile.PhysicalFileFileHash may be empty if the file was locked
OnLog("Detect Changes since last Run");
#region Folders
#region Matching Folders
OnLog("Detecting matching folders start based on path");
//Looking for matching folders (based on path)
foreach (VirtualElement VE in this.FlatElementsGetAllFolders())
{
PhysicalFolder TempPhysicalFolder = pPhysicalRootFolder._Folders.FirstOrDefault(x => x.RelativeFolderPath.Equals(VE.PathRelative, StringComparison.OrdinalIgnoreCase) && !x.bIdentified);
if (TempPhysicalFolder != null)
{
//The local folder path is still existing
TempPhysicalFolder.bIdentified = true;
VE.bIdentified = true;
}
}
OnLog("Detecting matching folders end");
#endregion
#region Deleted Folders
OnLog("Detecting deleted folders start");
//Detect deleted folders ( by default, they are sorted from deepest to nearest)
foreach (VirtualElement VE in this.FlatElementsGetAllFolders())
{
if (!VE.bIdentified)
{
var SEI = new SyncEventItem(SyncEventEnum.LocalDelete, VE.ElementId, true, true);
OnEvent(SEI);
OnLog(String.Format("Local folder is present in the Local DB but missing physically : {0}. LocalDelete Event : {1}", VE.PathRelative, SEI.SyncEventId));
}
}
OnLog("Detecting deleted folders end");
#endregion
#region Detect new folders
OnLog("Detecting created folders start");
//Sort folders from nearest to deepest (we create nearest folder first)
pPhysicalRootFolder._Folders.Sort((x, y) => x._FullFolderPath.Count(z => z == Path.DirectorySeparatorChar).CompareTo(y._FullFolderPath.Count(z => z == Path.DirectorySeparatorChar)));
for (int i = 0; i < pPhysicalRootFolder._Folders.Count; i++)
{
if (!pPhysicalRootFolder._Folders[i].bIdentified)
{
pPhysicalRootFolder._Folders[i].bIdentified = true;
OnEvent(new SyncEventItem(SyncEventEnum.LocalCreate, pPhysicalRootFolder._Folders[i]._FullFolderPath, true, true));
OnLog(String.Format("Local folder created {0}", pPhysicalRootFolder._Folders[i].RelativeFolderPath));
}
}
OnLog("Detecting created folders end");
#endregion
#endregion
#region Files
OnLog("Detecting matching files start based on path");
//Looking for matching files (physical vs virtual)
foreach (VirtualElement VE in this.FlatElementsGetAllFiles())
{
VirtualFile VF = (VirtualFile)VE;
//Identify files based on their path
PhysicalFile TempPhysicalFile = pPhysicalRootFolder._Files.FirstOrDefault(x => x.FileRelativePath.Equals(VF.PathRelative, StringComparison.OrdinalIgnoreCase) && !x.bIdentified);
if (TempPhysicalFile != null)
{
if (VF.FileHash.Equals(TempPhysicalFile.FileHash, StringComparison.OrdinalIgnoreCase))
{
VF.bIdentified = true;
TempPhysicalFile.bIdentified = true;
}
else
{
//Physical file has changed or is locked
//Update Virtual file => the sync process will process it as it has changed
VF.bIdentified = true;
TempPhysicalFile.bIdentified = true;
var SEI = new SyncEventItem(SyncEventEnum.LocalUpdate, VF.ElementId, false, true);
OnEvent(SEI);
OnLog(String.Format("Local file {0} has been updated -> Event {1}", TempPhysicalFile._FileFullPath, SEI.SyncEventId));
}
}
}
OnLog("Detecting matching files end");
//Note : Impossible to identify renamed + modified files (to do this, we would need to use AlternateDataStreams)
OnLog("Performing file comparison start");
//Looking for Virtual files not identified => there is no physical file where there was one => deleted, moved or renamed file
foreach (VirtualElement VE in this.FlatElementsGetAllFiles())
{
VirtualFile VF = (VirtualFile)VE;
if (!VF.bIdentified)
{
PhysicalFile TempPhysicalFile;
OnLog(String.Format("Local file is present in the Local DB but missing physically : {0}", VF.PathRelative));
//Look if the file hasn't been renamed in the same folder
TempPhysicalFile = pPhysicalRootFolder._Files.FirstOrDefault(x => x.FileRelativeDirectory.Equals(Tools.GetParentPath(VF.PathRelative), StringComparison.OrdinalIgnoreCase) && x.FileHash.Equals(VF.FileHash, StringComparison.OrdinalIgnoreCase) && !x.bIdentified);
if (TempPhysicalFile != null)
{
OnLog(String.Format("Local file has been renamed to {0}", TempPhysicalFile._FileFullPath));
OnEvent(new SyncEventItem(SyncEventEnum.LocalRename, VF.ElementId, TempPhysicalFile.FileRelativePath, VF.PathRelative, false, true));
VF.bIdentified = true;
TempPhysicalFile.bIdentified = true;
}
else
{
//Look if the file hasn't been moved to somewhere. File with same name and same hash not already identified
TempPhysicalFile = pPhysicalRootFolder._Files.FirstOrDefault(x => Path.GetFileName(x._FileFullPath).Equals(VF.CurrentName, StringComparison.OrdinalIgnoreCase) && x.FileHash.Equals(VF.FileHash, StringComparison.OrdinalIgnoreCase) && !x.bIdentified);
if (TempPhysicalFile != null)
{
OnLog(String.Format("Local file has been moved to {0}", TempPhysicalFile._FileFullPath));
OnEvent(new SyncEventItem(SyncEventEnum.LocalMove, VF.ElementId, TempPhysicalFile.FileRelativePath, VF.PathRelative, false, true));
VF.bIdentified = true;
TempPhysicalFile.bIdentified = true;
}
else
{
//Note : We don't limit the rename check on same folder only
//Look if the file hasn't been renamed based on the hash
TempPhysicalFile = pPhysicalRootFolder._Files.FirstOrDefault(x => { return(x.FileHash.Equals(VF.FileHash, StringComparison.OrdinalIgnoreCase) && !x.bIdentified); });
if (TempPhysicalFile != null)
{
OnLog(String.Format("Local file has been moved and renamed to {0}", TempPhysicalFile._FileFullPath));
OnEvent(new SyncEventItem(SyncEventEnum.LocalMoveAndRename, VF.ElementId, TempPhysicalFile.FileRelativePath, VF.PathRelative, false, true));
VF.bIdentified = true;
TempPhysicalFile.bIdentified = true;
}
else
{
OnLog(String.Format("Local file has been deleted", VF.PathRelative));
OnEvent(new SyncEventItem(SyncEventEnum.LocalDelete, VF.ElementId, false, true));
VF.bIdentified = true;
}
}
}
}
}
//Looking for Physical files not identified => this file was not in the virtual list
//=> New, moved or renamed file
for (int i = 0; i < pPhysicalRootFolder._Files.Count; i++)
{
if (!pPhysicalRootFolder._Files[i].bIdentified)
{
OnLog(String.Format("New local file {0}", pPhysicalRootFolder._Files[i].FileRelativePath));
OnEvent(new SyncEventItem(SyncEventEnum.LocalCreate, pPhysicalRootFolder._Files[i]._FileFullPath, false, true));
}
}
OnLog("Performing file comparison end");
#endregion
OnLog("Done");
}
