package bluej.groupwork;

import java.io.File;
import java.io.IOException;
import java.util.*;

import javafx.stage.Window;

import threadchecker.OnThread;
import threadchecker.Tag;
import bluej.utility.DialogManager;
import bluej.utility.FileUtility;




| Utilities for teamwork functionality.
|
public class TeamUtils
{       



| Handle a server response in an appropriate fashion, i.e. if the response
| indicates an error, then display an error dialog.
|
| Call on the AWT event handling thread.
|
@OnThread(Tag.FXPlatform)
   
   public static void handleServerResponseFX(TeamworkCommandResult result, final Window window)
   {
      if (result != null)
       {
         if (result.wasAuthFailure())
           {
            DialogManager.showErrorFX(window, "team-authentication-problem");             
            }

         else if (result.isError() && ! result.wasAborted())
           {
            DialogManager.showErrorTextFX(window, result.getErrorMessage());             
            }         
         }     
      }

   
   


| From a set of File objects, remove those files which should be treated as
| binary files (and put them in a new set).
|
public static Set extractBinaryFilesFromSet(Set<File> files)
   {        
      Set<File> binFiles = new HashSet<File>();
      Iterator<File> i = files.iterator();
      while (i.hasNext()){
         File f = i.next();
         if (f.isDirectory()) {                
            continue;             
            }
         String fname = f.getName();
         if (! fname.endsWith(".txt") && ! fname.endsWith(".java")) {
            binFiles.add(f);
            i.remove();             
            }         
         }
       
      return binFiles;     
      }

   
   


| Backup a set of files, returning a map from the original file name to
| the backup name. The backup files are created in the system's temp
| folder/directory.
|
public static Map backupFiles(Set<File> files) throws IOException
   {        
      Map<File,File> rmap = new HashMap<File,File>();
       
      for (Iterator<File> i = files.iterator(); i.hasNext(); ) {
         File tempFile = File.createTempFile("bluejvcs", null);
         File srcFile = i.next();
         FileUtility.copyFile(srcFile, tempFile);
         rmap.put(srcFile, tempFile);         
         }
       
      return rmap;     
      }
    
   
   


| Copy a set of files, then delete the source files. This is used to
| restore a backup created by the backupFiles() method. The source
| files (i.e. the backup files) are deleted afterwards.
|
public static void restoreBackups(Map<File,File> rmap) throws IOException
   {
      Iterator<Map.Entry<File,File>> i = rmap.entrySet().iterator();
      while (i.hasNext()){
         Map.Entry<File,File> entry = i.next();
         File orig = entry.getKey();
         File backup = entry.getValue();
         FileUtility.copyFile(backup, orig);
         backup.delete();         
         }     
      } 
   }