/*
* Created on 29-Oct-2004
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program 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 2
* of the License, or (at your option) any later version.
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.core3.util;
import java.io.File;
import java.io.IOException;
/**
* @author parg
*
*/
public class
AETemporaryFileHandler
{
private static final boolean PORTABLE = System.getProperty( "azureus.portable.root", "" ).length() > 0;
private static final String PREFIX = "AZU";
private static final String SUFFIX = ".tmp";
private static boolean started_up;
private static File tmp_dir;
public static synchronized void
startup()
{
if ( started_up ){
return;
}
started_up = true;
try{
tmp_dir = FileUtil.getUserFile( "tmp" );
if ( tmp_dir.exists()){
File[] files = tmp_dir.listFiles();
if ( files != null ){
for (int i=0;i<files.length;i++){
File file = files[i];
if ( file.getName().startsWith(PREFIX) && file.getName().endsWith(SUFFIX)){
if ( file.isDirectory()){
FileUtil.recursiveDelete( file );
}else{
file.delete();
}
}
}
}
}else{
tmp_dir.mkdir();
}
}catch( Throwable e ){
try{
tmp_dir = File.createTempFile(PREFIX,SUFFIX).getParentFile();
}catch( Throwable f ){
tmp_dir = new File("");
}
// with webui we don't have the file stuff so this fails with class not found
if ( !(e instanceof NoClassDefFoundError )){
Debug.printStackTrace( e );
}
}
}
public static File
getTempDirectory()
{
startup();
return( tmp_dir );
}
public static boolean
isTempFile(
File file )
{
if ( !file.exists()){
return( false );
}
try{
String s1 = file.getParentFile().getCanonicalPath();
String s2 = tmp_dir.getCanonicalPath();
if ( !s1.equals(s2)){
return( false );
}
String name = file.getName();
if ( !name.startsWith( PREFIX )){
return( false );
}
if ( !name.endsWith( SUFFIX )){
return( false );
}
return( true );
}catch( Throwable e ){
Debug.out( e );
return( false );
}
}
public static File
createTempFile()
throws IOException
{
startup();
return( File.createTempFile( PREFIX, SUFFIX, tmp_dir ));
}
public static File
createTempFileInDir(
File parent_dir )
throws IOException
{
startup();
return( File.createTempFile( PREFIX, SUFFIX, parent_dir ));
}
public static File
createSemiTempFile()
throws IOException
{
if ( PORTABLE ){
try{
File stmp_dir = FileUtil.getUserFile( "tmp2" );
if ( !stmp_dir.exists()){
stmp_dir.mkdirs();
}
if ( stmp_dir.canWrite()){
return( File.createTempFile( PREFIX, null, stmp_dir ));
}
}catch( Throwable e ){
Debug.out( e );
}
}
return( File.createTempFile( PREFIX, null ));
}
public static File
createTempDir()
throws IOException
{
startup();
for (int i=0;i<16;i++){
File f = File.createTempFile( PREFIX, SUFFIX, tmp_dir );
f.delete();
if ( f.mkdirs()){
return( f );
}
}
throw( new IOException( "Failed to create temporary directory in " + tmp_dir ));
}
}