/*
* TemporaryURLContent.java 9 juil 2007
*
* Sweet Home 3D, Copyright (c) 2007 Emmanuel PUYBARET / eTeks <info@eteks.com>
*
* 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
*/
package com.eteks.sweethome3d.tools;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import com.eteks.sweethome3d.model.Content;
/**
* URL content for files, images...
* @author Emmanuel Puybaret
*/
public class TemporaryURLContent extends URLContent {
private static final long serialVersionUID = 1L;
public TemporaryURLContent(URL temporaryUrl) {
super(temporaryUrl);
}
/**
* Returns a {@link URLContent URL content} object that references a temporary copy of
* a given <code>content</code>.
*/
public static TemporaryURLContent copyToTemporaryURLContent(Content content) throws IOException {
String extension = ".tmp";
if (content instanceof URLContent) {
String file = ((URLContent)content).getURL().getFile();
int lastIndex = file.lastIndexOf('.');
if (lastIndex > 0) {
extension = file.substring(lastIndex);
}
}
File tempFile = OperatingSystem.createTemporaryFile("temp", extension);
InputStream tempIn = null;
OutputStream tempOut = null;
try {
tempIn = content.openStream();
tempOut = new FileOutputStream(tempFile);
byte [] buffer = new byte [8192];
int size;
while ((size = tempIn.read(buffer)) != -1) {
tempOut.write(buffer, 0, size);
}
} finally {
if (tempIn != null) {
tempIn.close();
}
if (tempOut != null) {
tempOut.close();
}
}
return new TemporaryURLContent(tempFile.toURI().toURL());
}
}