Android Open Source - FolderCompare Compare Filter

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
===========================================================================
/*w ww .  j  a v a  2s.co  m*/
FolderCompare Source Code
Copyright (C) 2012 Andrey Budnik. 

This file is part of the FolderCompare Source Code.  

FolderCompare Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

FolderCompare Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with FolderCompare Source Code.  If not, see <http://www.gnu.org/licenses/>.

===========================================================================
*/

package fc.comparator;

import java.util.ArrayList;
import java.util.Date;

import FileComparator.CompareInfo;

class CompareFilter
{
  private ArrayList< CompareInfo > compareInfoLeft, compareInfoRight;
  private CompareConfig cmpConfig;
  private FilterParams fltParams;
  
  
  CompareFilter( ArrayList< CompareInfo > compareInfoLeft, ArrayList< CompareInfo > compareInfoRight,
          CompareConfig cmpConfig, FilterParams fltParams )
  {
    this.compareInfoLeft = compareInfoLeft;
    this.compareInfoRight = compareInfoRight;
    this.cmpConfig = cmpConfig;
    this.fltParams = fltParams;
  }
  
  private void RemoveNotUniqueFiles( ArrayList< CompareInfo > list )
  {
    int size = list.size();
    for( int i = 0; i < size; i++ )
    {
      CompareInfo cmpInfo = list.get( i );
      if ( !cmpInfo.IsUnique() )
      {
        list.remove( i );
        i--;
        size--;
      }
    }
  }
  
  private void RemoveNotEqual( ArrayList< CompareInfo > list )
  {
    int size = list.size();
    for( int i = 0; i < size; i++ )
    {
      CompareInfo cmpInfo = list.get( i );
      if ( !cmpInfo.IsEqualToOpposite() )
      {
        list.remove( i );
        i--;
        size--;
      }
    }
  }
  
  private void RemoveNotCompared( ArrayList< CompareInfo > list )
  {
    int size = list.size();
    for( int i = 0; i < size; i++ )
    {
      CompareInfo cmpInfo = list.get( i );
      if ( !cmpInfo.IsCompared() )
      {
        list.remove( i );
        i--;
        size--;
      }
    }
  }
  
  private void RemoveHidden( ArrayList< CompareInfo > list )
  {
    int size = list.size();
    for( int i = 0; i < size; i++ )
    {
      CompareInfo cmpInfo = list.get( i );
      if ( cmpInfo.GetFile().isHidden() )
      {
        list.remove( i );
        i--;
        size--;
      }
    }
  }
  
  private boolean FilterTest( CompareInfo cmpInfo )
  {
    if ( !cmpInfo.GetFile().isDirectory() )
    {
      long size = cmpInfo.GetFile().length();
      
      long sizeFrom = fltParams.GetSizeFrom();
      if ( sizeFrom != -1 )
      {
        if ( size < sizeFrom )
          return true;
      }
      
      long sizeTo = fltParams.GetSizeTo();
      if ( sizeTo != -1 )
      {
        if ( size > sizeTo )
          return true;
      }
    }
    
    long time = cmpInfo.GetFile().lastModified();
    Date modified = new Date( time );
    
    if ( fltParams.GetTimeFrom() != -1 )
    {
      if ( modified.before( new Date(fltParams.GetTimeFrom()) ) )
        return true;
    }
    
    if ( fltParams.GetTimeTo() != -1 )
    {
      if ( modified.after( new Date(fltParams.GetTimeTo()) ) )
        return true;
    }
    
    for( String filter : fltParams.GetNames() )
    {
      String regex = filter.replace("?", ".?").replace("*", ".*?");
      if ( cmpInfo.GetFile().getName().matches( regex ) )
        return true;
    }
    
    return false;
  }
  
  private void Filter( ArrayList< CompareInfo > list )
  {
    int size = list.size();
    for( int i = 0; i < size; i++ )
    {
      CompareInfo cmpInfo = list.get( i );
      if ( FilterTest( cmpInfo ) )
      {
        list.remove( i );
        i--;
        size--;
      }
    }
  }
  
  public void RemoveHidenFiles()
  {
    if ( cmpConfig.GetShowFilesNotExistsOnly() )
    {
      RemoveNotUniqueFiles( compareInfoLeft );
      RemoveNotUniqueFiles( compareInfoRight );
    }
    
    if ( cmpConfig.GetShowOnlyEq() )
    {
      RemoveNotEqual( compareInfoLeft );
      RemoveNotEqual( compareInfoRight );
    }
    
    if ( cmpConfig.GetShowOnlyCompared() )
    {
      RemoveNotCompared( compareInfoLeft );
      RemoveNotCompared( compareInfoRight );
    }
    
    if ( !cmpConfig.GetShowHidden() )
    {
      RemoveHidden( compareInfoLeft );
      RemoveHidden( compareInfoRight );
    }
    
    if ( fltParams.IsUseFilter() )
    {
      Filter( compareInfoLeft );
      Filter( compareInfoRight );
    }
  }
}

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