/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.test.fs;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.GZIPInputStream;
import org.jnode.emu.plugin.model.DummyConfigurationElement;
import org.jnode.emu.plugin.model.DummyExtension;
import org.jnode.emu.plugin.model.DummyExtensionPoint;
import org.jnode.emu.plugin.model.DummyPluginDescriptor;
import org.jnode.fs.service.FileSystemService;
import org.jnode.fs.service.def.FileSystemPlugin;
import org.jnode.util.FileUtils;
import org.junit.Assert;
import static org.junit.Assert.assertTrue;
/**
* File system test utilities.
*/
public class FileSystemTestUtils {
/**
* Gets a file system test file.
*
* @param testFile the test file to get. E.g. "ntfs/test.ntfs".
* @return the file.
* @throws IOException if an error occurs.
*/
public static File getTestFile(String testFile) throws IOException {
File file = new File("fs/src/test/org/jnode/", testFile);
// Look for the gzip file.
File gzipFile = new File(file.getParent(), file.getName() + ".gz");
if (gzipFile.exists()) {
explodeGzip(gzipFile, file);
return file;
}
Assert.fail("Expected a gzipped file: " + gzipFile.getAbsolutePath());
return null;
}
/**
* Explodes a GZIP file to a file.
*
* @param gzipFile the source GZIP file.
* @param outputFile the destination file.
* @throws java.io.IOException if there was an error exploding the GZIP file.
*/
private static synchronized void explodeGzip(File gzipFile, File outputFile) throws IOException {
File tempFile = new File(outputFile.getParentFile(), outputFile.getName() + ".tmp");
if (!outputFile.exists() || gzipFile.lastModified() > outputFile.lastModified()) {
if (outputFile.exists()) {
// Force deletion if it's out of date or the renameTo further down will fail.
Assert.assertTrue(outputFile.delete());
}
InputStream in = new GZIPInputStream(new FileInputStream(gzipFile));
try {
OutputStream out = new FileOutputStream(tempFile);
try {
FileUtils.copy(in, out, new byte[0x10000], false);
} finally {
out.close();
}
} finally {
in.close();
}
assertTrue(
String.format("Temp data file couldn't be renamed.\nOld name: %s\nNew name: %s", tempFile, outputFile),
tempFile.renameTo(outputFile));
}
}
/**
* Creates a file system service for testing.
*
* @param fileSystemTypeClassName the class name of the file system type.
* @return the file system service.
*/
public static FileSystemService createFSService(String fileSystemTypeClassName) {
DummyPluginDescriptor desc = new DummyPluginDescriptor(true);
DummyExtensionPoint ep = new DummyExtensionPoint("types", "org.jnode.fs.types", "types");
desc.addExtensionPoint(ep);
DummyExtension extension = new DummyExtension();
DummyConfigurationElement element = new DummyConfigurationElement();
element.addAttribute("class", fileSystemTypeClassName);
extension.addElement(element);
ep.addExtension(extension);
return new FileSystemPlugin(desc);
}
}