//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.start;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.FileTime;
import java.util.Locale;
public class FS
{
public static boolean canReadDirectory(Path path)
{
return Files.exists(path) && Files.isDirectory(path) && Files.isReadable(path);
}
public static boolean canReadFile(Path path)
{
return Files.exists(path) && Files.isRegularFile(path) && Files.isReadable(path);
}
public static boolean canWrite(Path path)
{
return Files.isWritable(path);
}
public static void close(Closeable c)
{
if (c == null)
{
return;
}
try
{
c.close();
}
catch (IOException ignore)
{
/* ignore */
}
}
public static boolean createNewFile(Path path) throws IOException
{
Path ret = Files.createFile(path);
return Files.exists(ret);
}
public static void ensureDirectoryExists(Path dir) throws IOException
{
if (exists(dir))
{
// exists already, nothing to do
return;
}
Files.createDirectories(dir);
}
public static void ensureDirectoryWritable(Path dir) throws IOException
{
if (!Files.exists(dir))
{
throw new IOException("Path does not exist: " + dir.toAbsolutePath());
}
if (!Files.isDirectory(dir))
{
throw new IOException("Directory does not exist: " + dir.toAbsolutePath());
}
if (!Files.isWritable(dir))
{
throw new IOException("Unable to write to directory: " + dir.toAbsolutePath());
}
}
public static boolean exists(Path path)
{
return Files.exists(path);
}
public static boolean isValidDirectory(Path path)
{
if (!Files.exists(path))
{
// doesn't exist, not a valid directory
return false;
}
if (!Files.isDirectory(path))
{
// not a directory (as expected)
StartLog.warn("Not a directory: " + path);
return false;
}
return true;
}
public static boolean isXml(String filename)
{
return filename.toLowerCase(Locale.ENGLISH).endsWith(".xml");
}
public static String toRelativePath(File baseDir, File path)
{
return baseDir.toURI().relativize(path.toURI()).toASCIIString();
}
public static boolean isPropertyFile(String filename)
{
return filename.toLowerCase(Locale.ENGLISH).endsWith(".properties");
}
public static String separators(String path)
{
StringBuilder ret = new StringBuilder();
for (char c : path.toCharArray())
{
if ((c == '/') || (c == '\\'))
{
ret.append(File.separatorChar);
}
else
{
ret.append(c);
}
}
return ret.toString();
}
public static Path toPath(String path)
{
return FileSystems.getDefault().getPath(FS.separators(path));
}
public static void touch(Path path) throws IOException
{
FileTime now = FileTime.fromMillis(System.currentTimeMillis());
Files.setLastModifiedTime(path,now);
}
public static Path toRealPath(Path path) throws IOException
{
return path.toRealPath();
}
}