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maneshborase
System.IO.IOException: The file exists
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Hi,

I am facing one critical problem.
My software is running fine. I am getting correct output.
But now it is not able to process the Dicom files. When I am running the application, it processes upto 539MB size of files (running fine till 539MB size files). After that it is giving me the following exception when processing the next dicom files.

--------------------------------------------------------------
Exception:

Error: File Reading: System.IO.IOException: The file exists.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.IO.Path.GetTempFileName()
at DvtkHighLevelInterface.Dicom.Other.Values.Set(Byte[] value)
at DvtkHighLevelInterface.Dicom.Other.AttributeSet.Set[T](TagSequence tagSequence, VR vR, T genericsParameter)
at DvtkHighLevelInterface.Dicom.Files.FileMetaInformation.Set(String tagSequence, VR vR, Byte[] value)
at DvtkHighLevelInterface.Dicom.Files.FileMetaInformation..ctor()
at _3disytems.DicomAnonymiserLibrary.DicomImageProcessor.ModifyDicomFile(String filePath) in E:\Projects\Working\Dicom Project\DicomEditorLibrary\DicomImageProcessor.cs:line 200
at _3disytems.DicomAnonymiserLibrary.DicomImageProcessor.DirSearch(String sDir) in E:\Projects\Working\Dicom Project\DicomEditorLibrary\DicomImageProcessor.cs:line 172 at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.IO.Path.GetTempFileName()
at DvtkHighLevelInterface.Dicom.Other.Values.Set(Byte[] value)
at DvtkHighLevelInterface.Dicom.Other.AttributeSet.Set[T](TagSequence tagSequence, VR vR, T genericsParameter)
at DvtkHighLevelInterface.Dicom.Files.FileMetaInformation.Set(String tagSequence, VR vR, Byte[] value)
at DvtkHighLevelInterface.Dicom.Files.FileMetaInformation..ctor()
at _3disytems.DicomAnonymiserLibrary.DicomImageProcessor.ModifyDicomFile(String filePath) in E:\Projects\Working\Dicom Project\DicomEditorLibrary\DicomImageProcessor.cs:line 200
at _3disytems.DicomAnonymiserLibrary.DicomImageProcessor.DirSearch(String sDir) in E:\Projects\Working\Dicom Project\DicomEditorLibrary\DicomImageProcessor.cs:line 172
--------------------------------------------------------------

This is not happening only this system, on another system also this problem occurring, where it is not able to processes single file.


Please can anyone tell me why this is happening?

Thanks,
Manesh

Posted on: 2010/2/4 15:58
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maneshborase
Re: System.IO.IOException: The file exists
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I am giving you the source code of the .cs file where error is occurring.


public void DirSearch(string sDir)         {             Logger.Log(@"C:Dicom Files", "Processing directories :" + sDir);              try             {                 if (flag)                 {                     flag = false;                     foreach (string file in Directory.GetFiles(sDir))                     {                         Logger.Log(@"C:Dicom Files", "Processing file :" + file);                         ModifyDicomFile(file);                     }                 }                  Logger.Log(@"C:Dicom Files", "Getting directories from:" + sDir);                 string[] str = Directory.GetDirectories(sDir);                 foreach (string dir in str)                 {                     Logger.Log(@"C:Dicom Files", "Getting files from:" + dir);                     foreach (string file in Directory.GetFiles(dir))                     {                         Logger.Log(@"C:Dicom Files", "Processing file :" + file);                         ModifyDicomFile(file);                     }                      DirSearch(dir);                      Logger.Log(@"C:Dicom Files", "Deleting directory :" + dir);                     if (IsDeletionOn && Directory.GetFileSystemEntries(dir).Length == 0)                         Directory.Delete(dir);                 }                             }             catch (ArgumentNullException ex)             {                 Logger.Log(DicomImageProcessor.dirSettings.LogDirectory, "Error: path is null : " + ex.ToString() + "                    " + ex.StackTrace);             }             catch (Exception ex)             {

//Exception is catching here of that error
                 Logger.Log(DicomImageProcessor.dirSettings.LogDirectory, "Error: File Reading: " + ex.ToString() + "                    " + ex.StackTrace);             }         }          

string targetPath;         
string processedPath;          

public void ModifyDicomFile(string filePath)       {             Logger.Log(@"C:Dicom Files", "I am processing of :" + filePath);              if (dataSet1 == null)                 dataSet1 = new DvtkHighLevelInterface.Dicom.Other.DataSet();              Logger.Log(@"C:Dicom Files", "Initializing dataset");              

// Error is throwing here every time

if (fileMetaInfo1 == null)                 fileMetaInfo1 = new FileMetaInformation();              Logger.Log(@"C:Dicom Files", "Initializing FMI");              if (dcmFile1 == null)                 dcmFile1 = new DicomFile();             theMDT.DCMFile = filePath;              Logger.Log(@"C:Dicom Files", "Initializing Dicom File 1");              try             {                 dcmFile1.Read(filePath, theMDT);                 Logger.Log(@"C:Dicom Files", "Dicom file " + filePath + " is reading");                  processedPath = DicomImageProcessor.dirSettings.ProcessedDirectory + filePath.Substring(DicomImageProcessor.dirSettings.SourceDirectory.Length);                 dcmFile1.Write(processedPath);                 Logger.Log(@"C:Dicom Files", "Dicom file " + processedPath + " is writing in processed");                  fileMetaInfo1 = dcmFile1.FileMetaInformation;                 dataSet1 = dcmFile1.DataSet;                  if (DicomImageProcessor.attrInfo.PatientName == null || DicomImageProcessor.attrInfo.PatientName == "" || DicomImageProcessor.attrInfo.PatientID == null || DicomImageProcessor.attrInfo.PatientID == "" || DicomImageProcessor.attrInfo.PatientDOB == null || DicomImageProcessor.attrInfo.PatientDOB == "")                     Logger.Log(DicomImageProcessor.dirSettings.LogDirectory, "some information of Patient is missing in App.config");                                  if (dcmFile2 == null)                     dcmFile2 = new DicomFile();                 Logger.Log(@"C:Dicom Files", "Initializing Dicom File 2");                  dcmFile2.FileMetaInformation = fileMetaInfo1;                 dcmFile2.DataSet = dataSet1;                  dcmFile2.DataSet.Set("0x00100010", VR.PN, DicomImageProcessor.attrInfo.PatientName);                 dcmFile2.DataSet.Set("0x00100020", VR.LO, DicomImageProcessor.attrInfo.PatientID);                 dcmFile2.DataSet.Set("0x00100030", VR.DA, DicomImageProcessor.attrInfo.PatientDOB);                                  Logger.Log(@"C:Dicom Files", "Dicom file " + filePath + " is modifying");                  if (!filePath.Contains(".dcm"))                 {                     targetPath = DicomImageProcessor.dirSettings.TargetDirectory + filePath.Substring(DicomImageProcessor.dirSettings.SourceDirectory.Length) + ".dcm";                 }                 else                 {                     targetPath = DicomImageProcessor.dirSettings.TargetDirectory + filePath.Substring(DicomImageProcessor.dirSettings.SourceDirectory.Length);                 }                   Logger.Log(@"C:Dicom Files", "Dicom file " + targetPath + " is writing in processed");                 dcmFile2.Write(targetPath);                 try                 {                     Logger.Log(@"C:Dicom Files", "Dicom file " + filePath + " is deleting from source");                      if (IsDeletionOn)                         File.Delete(filePath);                 }                 catch (Exception e)                 {                     Logger.Log(dirSettings.LogDirectory, String.Format("Error in file dicom file deletion {0}.n Exception: {1}", filePath, e.ToString()));                 }             }             catch (Exception e)             {                 Logger.Log(dirSettings.LogDirectory, String.Format("Error in modifying dicom file {0}.n Exception: {1}", filePath, e.ToString()));                             }             catch             {                 Logger.Log(dirSettings.LogDirectory, String.Format("Error in modifying dicom file {0}.", filePath));                             }              dataSet1 = null;             dcmFile1 = null;             dcmFile2 = null;             fileMetaInfo1 = null;              Logger.Log(@"C:Dicom Files", "I have completed processing of :");          }           public class MainDicomThread : DicomThread     {         string dcmFilePath = String.Empty;         DicomFile dcmFile1 = null;          public string DCMFile         {             set { dcmFilePath = value; }         }          protected override void Execute()         {             try             {                 if (dcmFile1 == null)                     dcmFile1 = new DicomFile();                 dcmFile1.Read(dcmFilePath, this);             }             catch (Exception e)             {                 throw e;             }             catch             {                 throw;             }         }     }


Thanks,
Manesh

Posted on: 2010/2/4 16:30
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maneshborase
Re: System.IO.IOException: The file exists
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Sorry, the source is not looking good.
I am attaching one file
Please check that for code snippet.

Thanks,
manesh

Posted on: 2010/2/4 16:34
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maneshborase
Re: System.IO.IOException: The file exists
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check attachment for code snippet of problem

Posted on: 2010/2/4 16:37
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maneshborase
Re: System.IO.IOException: The file exists
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not able to attach the file.

Posted on: 2010/2/4 16:38
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maneshborase
Re: System.IO.IOException: The file exists
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Hi friends,

Nobody reply me for my problem. OK no problem.

Now I got why & where actually the problem occurring.

When I am processing the dicom files (huge no. of files eg. 9GB)
It is creating .tmp files in C:\Document and Setting\\Local Settings\Temp.

In this temp folder only 65735 no. of temp (.tmp) files can be created.

That is why the problem is coming. So If I delete these temp files then I am able to process my all dicom files.

----------------------------------------------------------------
Quote:
New Problem:


But Now the problem is that why these temp files are generated when processing the dicom files.

because, I am doing following thing to prevent from creating *.pix & *.idx in System Temp directory.


DicomThread.Options.DataDirectory = "C:DTemp"; DicomThread.Options.ResultsDirectory = "C:DTemp";


And now *.pix & *.idx files are created in "C:\DTemp" directory, so I can delete all *.pix & *.idx files after processing.

So If *.pix & *.idx files are created in C:\DTemp directory,
Why .tmp files are created in System Temp directory

Please help me out of these problem.


Thanks,
Manesh

Posted on: 2010/2/5 12:04
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Floris
Re: System.IO.IOException: The file exists
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Sorry for the late reaction. I will have someone from the developers look into this.

Posted on: 2010/3/31 10:03
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marcokemper
Re: System.IO.IOException: The file exists
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Hi Manesh,

the reason for this to occur is the following.
The High Level Interface layer, you are using, uses a lot of functionality from the lower DVTkData layer, both part of the DVTk library.

In the DVTkData layer, when setting the content of an attribute with VR OB, OW or OF, this is always done by supplying a file containing the bytes to use for the value of such an attribute.

What no happens is the following:
- You construct an instance of the class FileMetaInformation.
- This implicitly sets the attribute "File Meta Information Version" which has VR OB.
- This implicitly creates a temp file that will not be removed in this scenario.

Can you submit a ticket for this (using a lot of copy-and-paste from this forum)? You will then be able to follow the progress.

Regards,
Marco

Posted on: 2010/4/1 10:42
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noldor
Re: System.IO.IOException: The file exists
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Additional information;
If there is not enough space on the disk drive, library also goes into FileNotFound exception.

Posted on: 2010/12/10 7:52
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silkduvets
Re: System.IO.IOException: The file exists
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"check attachment for code snippet of problem"

This is right.

Posted on: 2011/2/22 2:44
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