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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package graphical;
import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
/**
* Helper for directory access
*
* @author lla@openoffice.org
*/
public class DirectoryHelper
{
ArrayList<String> m_aFileList = new ArrayList<String>();
boolean m_bRecursiveIsAllowed = true;
void setRecursiveIsAllowed(boolean _bValue)
{
m_bRecursiveIsAllowed = _bValue;
}
/**
* Traverse over a given directory, and filter with a given FileFilter
* object and gives back the deep directory as a Object[] list, which
* contain a String object for every directory entry.
*
* <B>Example</B>
* List directory /bin, filter out all files which ends with '.prn'
*
* FileFilter aFileFilter = new FileFilter()
* {
* public boolean accept( File pathname )
* {
* if (pathname.getName().endsWith(".prn"))
* {
* return false;
* }
* return true;
* }
* };
*
* Object[] aList = DirectoryHelper.traverse("/bin", aFileFilter);
* for (int i=0;i<aList.length;i++)
* {
* String aEntry = (String)aList[i];
* System.out.println(aEntry);
* }
*
* @param _sDirectory
* @param _aFileFilter
* @param _bRecursiveIsAllowed
* @return list of directories
*/
public static Object[] traverse( String _sDirectory, FileFilter _aFileFilter, boolean _bRecursiveIsAllowed )
{
DirectoryHelper a = new DirectoryHelper();
a.setRecursiveIsAllowed(_bRecursiveIsAllowed);
a.traverse_impl(_sDirectory, _aFileFilter);
return a.m_aFileList.toArray();
}
public static Object[] traverse( String _sDirectory, boolean _bRecursiveIsAllowed )
{
DirectoryHelper a = new DirectoryHelper();
a.setRecursiveIsAllowed(_bRecursiveIsAllowed);
a.traverse_impl(_sDirectory, null);
return a.m_aFileList.toArray();
}
void traverse_impl( String afileDirectory, FileFilter _aFileFilter )
{
File fileDirectory = new File(afileDirectory);
// Testing, if the file is a directory, and if so, it throws an exception
if ( !fileDirectory.isDirectory() )
{
throw new IllegalArgumentException( "not a directory: " + fileDirectory.getName() );
}
// Getting all files and directories in the current directory
File[] aDirEntries;
if (_aFileFilter != null)
{
aDirEntries = fileDirectory.listFiles(_aFileFilter);
}
else
{
aDirEntries = fileDirectory.listFiles();
}
// Iterating for each file and directory
for ( int i = 0; i < aDirEntries.length; ++i )
{
if ( aDirEntries[ i ].isDirectory() )
{
if (m_bRecursiveIsAllowed == true)
{
// Recursive call for the new directory
traverse_impl( aDirEntries[ i ].getAbsolutePath(), _aFileFilter );
}
}
else
{
// adding file to List
try
{
// Composing the URL by replacing all backslashs
// String stringUrl = "file:///" + aFileEntries[ i ].getAbsolutePath().replace( '\\', '/' );
String aStr = aDirEntries[ i ].getAbsolutePath();
m_aFileList.add(aStr);
}
catch( Exception exception )
{
exception.printStackTrace();
break;
}
}
}
}
// tests
// public static void main(String[] args)
// {
// String sDirectory = "/misc/convwatch/gfxcmp/data/doc-pool/demo";
// Object[] aDirectoryList = DirectoryHelper.traverse( sDirectory, false );
//
// for (int i=0;i<aDirectoryList.length;i++)
// {
// String sEntry = (String)aDirectoryList[i];
// System.out.println(sEntry);
// }
// }
}
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