本文整理了Java中org.scijava.util.FileUtils类的一些代码示例，展示了FileUtils类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。FileUtils类的具体详情如下：
包路径：org.scijava.util.FileUtils
类名称：FileUtils

FileUtils介绍

[英]Useful methods for working with file paths.
[中]使用文件路径的有用方法。

代码示例

代码示例来源：origin: org.scijava/scijava-common

/**
 * Recursively lists the contents of the referenced directory. Directories are
 * excluded from the result. Supported protocols include {@code file} and
 * {@code jar}.
 * 
 * @param directory The directory whose contents should be listed.
 * @return A collection of {@link URL}s representing the directory's contents.
 * @see #listContents(URL, boolean, boolean)
 */
public static Collection<URL> listContents(final URL directory) {
  return listContents(directory, true, true);
}

代码示例来源：origin: org.scijava/scijava-common

/**
 * Converts the given {@link URL} to its corresponding {@link File}.
 * <p>
 * This method is similar to calling {@code new File(url.toURI())} except that
 * it also handles "jar:file:" URLs, returning the path to the JAR file.
 * </p>
 * 
 * @param url The URL to convert.
 * @return A file path suitable for use with e.g. {@link FileInputStream}
 * @throws IllegalArgumentException if the URL does not correspond to a file.
 */
public static File urlToFile(final URL url) {
  return url == null ? null : urlToFile(url.toString());
}

代码示例来源：origin: org.scijava/minimaven

private final void deleteVersions(final File directory, final String filename,
  final File excluding)
{
  final File[] versioned = FileUtils.getAllVersions(directory, filename);
  if (versioned == null) return;
  for (final File file : versioned) {
    if (file.equals(excluding)) continue;
    if (!file.getName().equals(filename)) {
      env.err.println("Warning: deleting '" + file + "'");
    }
    if (!file.delete()) {
      env.err.println("Warning: could not delete '" + file + "'");
    }
  }
}

代码示例来源：origin: org.scijava/scijava-common

/** Helper method of {@link #findResources(String, Iterable)}. */
private static void getResources(final Pattern pattern,
  final Map<String, URL> result, final URL base)
{
  final String prefix = urlPath(base);
  if (prefix == null) return; // unsupported base URL
  for (final URL url : FileUtils.listContents(base)) {
    final String s = urlPath(url);
    if (s == null || !s.startsWith(prefix)) continue;
    if (pattern == null || pattern.matcher(s).matches()) {
      // this resource matches the pattern
      final String key = urlPath(s.substring(prefix.length()));
      if (key != null) result.put(key, url);
    }
  }
}

代码示例来源：origin: org.scijava/scijava-common

@Override
public String getVersion() {
  final File file = new File(path);
  if (!file.exists()) return null; // no version for non-existent script
  try {
    return DigestUtils.bestHex(FileUtils.readFile(file));
  }
  catch (final IOException exc) {
    log.error(exc);
  }
  final Date lastModified = FileUtils.getModifiedTime(file);
  final String datestamp =
    new SimpleDateFormat("yyyy-MM-dd-HH:mm:ss").format(lastModified);
  return datestamp;
}

代码示例来源：origin: net.imagej/imagej-legacy

for (final URL url : FileUtils.listContents(pomBase, true, true)) {
      if (url.toExternalForm().endsWith("/pom.xml")) {
        return new POM(url);
final File file = FileUtils.urlToFile(location);
final File baseDir = AppUtils.getBaseDirectory(file, null);
final File pomFile = new File(baseDir, "pom.xml");

代码示例来源：origin: sc.fiji/fiji-compat

/**
 * Returns the file extension of a given file
 * 
 * @param path the path to the file
 * @return the file extension
 * @deprecated see {@link FileUtils#getExtension(String)}
 */
public static String getFileExtension(String path) {
  return FileUtils.getExtension(path);
}

代码示例来源：origin: scijava/scijava-common

@Test
public void testUnpackedClass() throws IOException {
  final File tmpDir = createTemporaryDirectory("class-utils-test-");
  final String path = getClass().getName().replace('.', '/') + ".class";
  final File classFile = new File(tmpDir, path);
  assertTrue(classFile.getParentFile().exists() ||
    classFile.getParentFile().mkdirs());
  copy(getClass().getResource("/" + path).openStream(),
    new FileOutputStream(classFile), true);
  final ClassLoader classLoader =
    new URLClassLoader(new URL[] { tmpDir.toURI().toURL() }, null);
  final URL location = ClassUtils.getLocation(getClass().getName(),
    classLoader);
  assertEquals(tmpDir, FileUtils.urlToFile(location));
  FileUtils.deleteRecursively(tmpDir);
}

代码示例来源：origin: org.scijava/scijava-common

@Override
public String loadChecksum(final Location source) throws IOException {
  final File cachedChecksum = cachedChecksum(source);
  if (!cachedChecksum.exists()) return null;
  return DigestUtils.string(FileUtils.readFile(cachedChecksum));
}

代码示例来源：origin: scijava/scijava-common

FileUtils.writeFile(inFile, data);
final byte[] cachedData = FileUtils.readFile(cachedFile.getFile());
assertArrayEquals(data, cachedData);
FileUtils.deleteRecursively(cacheDir);

代码示例来源：origin: scijava/scijava-common

@Test
public void testGetAllVersions() throws IOException {
  final String withClassifier = "miglayout-3.7.3.1-swing.jar";
  final String withoutClassifier = "miglayout-3.7.3.1.jar";
  final File tmp = createTemporaryDirectory("delete-other-");
  try {
    writeEmptyFile(new File(tmp, withClassifier));
    writeEmptyFile(new File(tmp, withoutClassifier));
    assertArrayEquals(new File[] { new File(tmp, withClassifier) },
      FileUtils.getAllVersions(tmp, withClassifier));
    assertArrayEquals(new File[] { new File(tmp, withoutClassifier) },
      FileUtils.getAllVersions(tmp, withoutClassifier));
  }
  finally {
    FileUtils.deleteRecursively(tmp);
  }
}

代码示例来源：origin: org.scijava/scijava-common

final String protocol = directory.getProtocol();
if (protocol.equals("file")) {
  final File dir = urlToFile(directory);
  final File[] list = dir.listFiles();
  if (list != null) {
          appendContents(result, file.toURI().toURL(), recurse, filesOnly);

代码示例来源：origin: scijava/scijava-common

@Test
public void testDownload() throws IOException, InterruptedException,
  ExecutionException
{
  final byte[] data = randomBytes(0xbabebabe);
  final String prefix = getClass().getName();
  final File inFile = File.createTempFile(prefix, "testDownloadIn");
  final File outFile = File.createTempFile(prefix, "testDownloadOut");
  try {
    FileUtils.writeFile(inFile, data);
    final Location src = new FileLocation(inFile);
    final Location dest = new FileLocation(outFile);
    final Download download = downloadService.download(src, dest);
    download.task().waitFor();
    final byte[] result = FileUtils.readFile(outFile);
    assertArrayEquals(data, result);
  }
  finally {
    inFile.delete();
    outFile.delete();
  }
}

代码示例来源：origin: org.scijava/scijava-common

/**
 * Creates a temporary directory.
 * <p>
 * Since there is no atomic operation to do that, we create a temporary file,
 * delete it and create a directory in its place. To avoid race conditions, we
 * use the optimistic approach: if the directory cannot be created, we try to
 * obtain a new temporary file rather than erroring out.
 * </p>
 * <p>
 * It is the caller's responsibility to make sure that the directory is
 * deleted; see {@link #deleteRecursively(File)}.
 * </p>
 * 
 * @param prefix The prefix string to be used in generating the file's name;
 *          see {@link File#createTempFile(String, String, File)}
 * @return An abstract pathname denoting a newly-created empty directory
 * @throws IOException
 */
public static File createTemporaryDirectory(final String prefix)
  throws IOException
{
  return createTemporaryDirectory(prefix, null, null);
}

代码示例来源：origin: org.scijava/scripting-java

/**
   * Cleans up the project, if it was only temporary.
   */
  private void cleanup() {
    if (err != null) err.close();
    if (err != null) err.close();
    if (temporaryDirectory != null &&
      !FileUtils.deleteRecursively(temporaryDirectory))
    {
      temporaryDirectory.deleteOnExit();
    }
  }
}

代码示例来源：origin: scijava/scijava-common

/** Tests {@link ScriptInfo#getVersion()}. */
@Test
public void testVersion() throws IOException {
  final String script = "" + //
    "% @LogService log\n" + //
    "% @OUTPUT int output";
  // write script to a temporary directory on disk
  final File tmpDir = TestUtils.createTemporaryDirectory("script-info-test-");
  final String path = "hello.bsizes";
  final File scriptFile = new File(tmpDir, path);
  FileUtils.writeFile(scriptFile, DigestUtils.bytes(script));
  // verify that the version is correct
  final ScriptInfo info = new ScriptInfo(context, scriptFile);
  final String version = info.getVersion();
  final String sha1 = "28f4a2880d604774ac5d604d35f431047a087c9e";
  assertTrue(version.matches("^" + sha1 + "$"));
  // clean up the temporary directory
  FileUtils.deleteRecursively(tmpDir);
}

代码示例来源：origin: org.scijava/scijava-common

/** Scans classpath resources for scripts (e.g., inside JAR files). */
private int scanResources(final List<ScriptInfo> scripts, final Set<URL> urls) {
  if (pathPrefix == null) return 0;
  // NB: We leave the baseDirectory argument null, because scripts on disk
  // will be picked up in the subsequent logic, which handles multiple
  // script directories rather than being limited to a single one.
  final Map<String, URL> scriptMap = //
    FileUtils.findResources(null, pathPrefix, null);
  return createInfos(scripts, urls, scriptMap, null);
}

代码示例来源：origin: org.scijava/scijava-common

/**
 * Gets the absolute path to the given file, with the directory separator
 * standardized to forward slash, like most platforms use.
 * 
 * @param file The file whose path will be obtained and standardized.
 * @return The file's standardized absolute path.
 */
public static String getPath(final File file) {
  final String path = file.getAbsolutePath();
  final String slash = System.getProperty("file.separator");
  return getPath(path, slash);
}

代码示例来源：origin: org.scijava/scijava-common

/** Shortens the given path to ensure it conforms to a maximum length. */
private String shortPath(final String path) {
  // TODO - shorten path name as needed
  return FileUtils.limitPath(path, MAX_DISPLAY_LENGTH);
}

代码示例来源：origin: org.scijava/scijava-search

for (final URL url : FileUtils.listContents(pomBase, true, true)) {
      if (url.toExternalForm().endsWith("/pom.xml")) {
        return new POM(url);
final File file = FileUtils.urlToFile(location);
final File baseDir = AppUtils.getBaseDirectory(file, null);
final File pomFile = new File(baseDir, "pom.xml");