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FileUtils.java
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FileUtils.java
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/*
* Copyright 2009-2017. DigitalGlobe, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and limitations under the License.
*/
package org.mrgeo.utils;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
public class FileUtils
{
private static final Logger log = LoggerFactory.getLogger(FileUtils.class);
public static File createUniqueTmpDir() throws IOException
{
File tmpUserDir = createTmpUserDir();
String baseName = "" + System.currentTimeMillis();
File tempDir = new File(tmpUserDir, baseName);
return createDisposibleDirectory(tempDir);
}
public static File createTmpUserDir() throws IOException
{
File baseDir = new File(System.getProperty("java.io.tmpdir"));
String username = "mrgeo-" + System.getProperty("user.name");
File tempDir = new File(baseDir, username);
return createDisposibleDirectory(tempDir);
}
public static File createDisposibleDirectory(File dir) throws IOException
{
if (!dir.exists())
{
if (!dir.mkdir())
{
throw new IOException("Error creating directory");
}
dir.deleteOnExit();
}
return dir;
}
public static File createDir(File dir) throws IOException
{
if (!dir.getParentFile().exists())
{
createDir(dir.getParentFile());
}
if (!dir.exists())
{
if (!dir.mkdir())
{
throw new IOException("Error creating directory");
}
}
return dir;
}
public static void deleteDir(File dir) throws IOException
{
deleteDir(dir, false);
}
public static void deleteDir(File dir, Boolean recursive) throws IOException
{
if (dir.exists() && dir.isDirectory())
{
if (recursive)
{
File[] files = dir.listFiles();
if (files != null)
{
for (File c : files)
{
if (c.isDirectory())
{
deleteDir(c, true);
}
else if (!c.delete())
{
throw new IOException("Error deleting file");
}
}
}
}
if (!dir.delete())
{
throw new IOException("Error deleting directory");
}
}
}
@SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "File used to create URI")
public static String resolveURI(String path)
{
try
{
URI uri = new URI(path);
if (uri.getScheme() == null)
{
String fragment = uri.getFragment();
URI part = new File(uri.getPath()).toURI();
uri = new URI(part.getScheme(), part.getPath(), fragment);
}
return uri.toString();
}
catch (URISyntaxException e)
{
log.error("Execption thrown {}", e);
}
return path;
}
@SuppressWarnings("squid:S1166") // Exception caught and handled
@SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "File used to create URI")
public static String resolveURL(String path)
{
try
{
URI uri = new URI(path);
if (uri.getScheme() == null)
{
String fragment = uri.getFragment();
URI part = new File(uri.getPath()).toURI();
uri = new URI(part.getScheme(), part.getPath(), fragment);
}
return uri.toURL().toString();
}
catch (URISyntaxException | MalformedURLException ignored)
{
}
return path;
}
}