package bluej.groupwork;

import bluej.groupwork.TeamStatusInfo.Status;




| Class to filter TeamStatusInfo objects to calculate those classes that will
| be changed when we next update.
|
| @author Davin McCall
|
public class UpdateFilter
{       



| Filter to identify which files in a repository will be altered at
| the next update.
|
public boolean accept(TeamStatusInfo statusInfo)
   {
      boolean isDir = statusInfo.getFile().isDirectory();
      Status stat = statusInfo.getStatus();
      Status remoteStat = statusInfo.getRemoteStatus();
        
      if (stat == Status.NEEDS_CHECKOUT || remoteStat == Status.NEEDS_CHECKOUT) {            
         return true;         
         }
      if (stat == Status.NEEDS_MERGE || remoteStat == Status.NEEDS_MERGE) {            
         return ! isDir;         
         }
      if (stat == Status.NEEDS_UPDATE || remoteStat == Status.NEEDS_UPDATE) {            
         return ! isDir;         
         }
      if (stat == Status.REMOVED || remoteStat == Status.REMOVED) {            
         return true;         
         }
      if (stat == Status.CONFLICT_LDRM || remoteStat == Status.CONFLICT_LDRM) {            
         
         return true;         
         }
      if (stat == Status.CONFLICT_LMRD || remoteStat == Status.CONFLICT_LMRD) {            
         
         return true;         
         }
        
      if (remoteStat == Status.NEEDS_UPDATE) { 
         return true;         
         }
    
       
      return false;     
      }
    
   
   


| For the given remote status, check whether an update will affect the file.
|
public boolean acceptDist(Status remoteStatus)
   {
      switch (remoteStatus)
       {            
         case CONFLICT_ADD:
           
         case CONFLICT_LDRM:
           
         case CONFLICT_LMRD:
           
         case NEEDS_CHECKOUT:
           
         case NEEDS_UPDATE:
           
         case NEEDS_MERGE:
           
         case REMOVED:
               
         return true;
           
         default:
               
         return false;         
         }     
      }
    
   
   


| For layout files, checks whether the file should be updated unconditionally.
|
public boolean updateAlways(TeamStatusInfo statusInfo)
   {
      Status remoteStatus = statusInfo.getRemoteStatus();
      if (statusInfo.getStatus() == Status.NEEDS_CHECKOUT || remoteStatus == Status.NEEDS_CHECKOUT) {            
         return true;         
         }
      if (statusInfo.getStatus() == Status.REMOVED || remoteStatus == Status.REMOVED) {            
         return true;         
         }
      if (statusInfo.getStatus() == Status.CONFLICT_LMRD || remoteStatus == Status.CONFLICT_LMRD) {            
         return true;         
         }
       
      return false;     
      } 
   }