java.nio.file.Files.walk()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中java.nio.file.Files.walk()方法的一些代码示例,展示了Files.walk()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。Files.walk()方法的具体详情如下:
包路径:java.nio.file.Files
类名称:Files
方法名:walk

Files.walk介绍

暂无

代码示例

代码示例来源:origin: siacs/Conversations

@SuppressWarnings("StreamResourceLeak")
private final Stream<Path> cacheContent() {
  try {
    return Files.walk(cacheDirectory).filter(Files::isRegularFile);
  } catch (final IOException e) {
    throw new UncheckedIOException(e);
  }
}

代码示例来源:origin: linlinjava/litemall

@Override
public Stream<Path> loadAll() {
  try {
    return Files.walk(rootLocation, 1)
        .filter(path -> !path.equals(rootLocation))
        .map(path -> rootLocation.relativize(path));
  } catch (IOException e) {
    throw new RuntimeException("Failed to read stored files", e);
  }
}

代码示例来源:origin: GoogleContainerTools/jib

/**
  * Walks {@link #rootDir}.
  *
  * @return the walked files.
  * @throws IOException if walking the files fails.
  */
 public ImmutableList<Path> walk() throws IOException {
  try (Stream<Path> fileStream = Files.walk(rootDir)) {
   return fileStream.filter(pathFilter).sorted().collect(ImmutableList.toImmutableList());
  }
 }
}

代码示例来源:origin: pmd/pmd

private List<Path> listMdFiles(Path pagesDirectory) {
  try {
    return Files.walk(pagesDirectory)
       .filter(Files::isRegularFile)
       .filter(path -> path.toString().endsWith(".md"))
       .collect(Collectors.toList());
  } catch (IOException ex) {
    throw new RuntimeException("error listing files in " + pagesDirectory, ex);
  }
}

代码示例来源:origin: jooby-project/jooby

@Override
public Iterable<Path> children(final Path handle) throws IOException {
 try (Stream<Path> walk = Files.walk(handle)) {
  return walk
    .skip(1)
    .filter(filter)
    .collect(Collectors.toList());
 }
}

代码示例来源:origin: apache/flink

public void copyOptJarsToLib(String jarNamePrefix) throws FileNotFoundException, IOException {
  final Optional<Path> reporterJarOptional;
  try (Stream<Path> logFiles = Files.walk(opt)) {
    reporterJarOptional = logFiles
      .filter(path -> path.getFileName().toString().startsWith(jarNamePrefix))
      .findFirst();
  }
  if (reporterJarOptional.isPresent()) {
    final Path optReporterJar = reporterJarOptional.get();
    final Path libReporterJar = lib.resolve(optReporterJar.getFileName());
    Files.copy(optReporterJar, libReporterJar);
    filesToDelete.add(new AutoClosablePath(libReporterJar));
  } else {
    throw new FileNotFoundException("No jar could be found matching the pattern " + jarNamePrefix + ".");
  }
}

代码示例来源:origin: apache/incubator-pinot

@Override
public String[] listFiles(URI fileUri, boolean recursive)
  throws IOException {
 File file = new File(decodeURI(fileUri.getRawPath()));
 if (!recursive) {
  return Arrays.stream(file.list()).map(s -> new File(file, s)).map(File::getAbsolutePath).toArray(String[]::new);
 } else {
  return Files.walk(Paths.get(fileUri)).
    filter(s -> !s.equals(file.toPath())).map(Path::toString).toArray(String[]::new);
 }
}

代码示例来源:origin: ata4/disunity

@Override
protected void runFile(Path file) {
  if (Files.isDirectory(file) && recursive) {
    try {
      Files.walk(file, maxDepth, FOLLOW_LINKS)
        .filter(this::fileFilter)
        .forEach(this::runFileRecursive);
    } catch (IOException ex) {
      L.log(Level.WARNING, "Can't walk directory " + file, ex);
    }
  } else {
    runFileRecursive(file);
  }
}

代码示例来源:origin: uber/okbuck

static void deleteDirectory(File path) {
  try (Stream<Path> walk = Files.walk(path.toPath(), FileVisitOption.FOLLOW_LINKS)) {
   walk.sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
  } catch (IOException ignored) {
  }
 }
}

代码示例来源:origin: spotbugs/spotbugs

public JrtfsCodeBaseIterator() {
  try {
    iterator = Files.walk(root).filter(p -> isClassFile(p)).iterator();
  } catch (IOException e) {
    e.printStackTrace();
  }
}

代码示例来源:origin: checkstyle/checkstyle

private static void walk(Path path, Consumer<Path> action) throws IOException {
  try (Stream<Path> walk = Files.walk(path)) {
    walk.forEach(action);
  }
}

代码示例来源:origin: jooby-project/jooby

public boolean exists(final Predicate<Path> filter) {
 try (Stream<Path> walk = Try.apply(() -> Files.walk(root)).orElse(Stream.empty())) {
  return walk
    .skip(1)
    .anyMatch(filter);
 }
}

代码示例来源:origin: apache/flink

private static List<Path> listRecursively(final Path dir) {
    try {
      if (!Files.exists(dir)) {
        return Collections.emptyList();
      } else {
        try (Stream<Path> files = Files.walk(dir, FileVisitOption.FOLLOW_LINKS)) {
          return files.filter(Files::isRegularFile).collect(Collectors.toList());
        }
      }
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
}

代码示例来源:origin: apache/groovy

public ScriptCompilationExecuter(File[] sourceDirectories, final List<URL> classpath) throws IOException {
  this.classpath = classpath.toArray(new URL[classpath.size()]);
  Set<File> sources = new HashSet<>();
  for (File sourceDirectory : sourceDirectories) {
    Files.walk(sourceDirectory.toPath())
        .filter(path -> {
          File file = path.toFile();
          return file.isFile()
              && file.getName().endsWith(".groovy");
        })
        .forEach(path -> sources.add(path.toFile()));
  }
  this.sources = sources.toArray(new File[sources.size()]);
  System.out.println("sources = " + sources.size());
}

代码示例来源:origin: OpenHFT/Chronicle-Queue

public void before() throws Exception {
  Path rootPath = Paths.get(basePath);
  Files.walk(rootPath, FileVisitOption.FOLLOW_LINKS)
      .sorted(Comparator.reverseOrder())
      .map(Path::toFile)
      .peek(System.out::println)
      .forEach(File::delete);
}

代码示例来源:origin: confluentinc/ksql

private static List<Class<?>> findClasses(final Path directory, final String packageName) {
 if (!directory.toFile().exists()) {
  return Collections.emptyList();
 }
 try (final Stream<Path> paths = Files.walk(directory)) {
  return paths
    .filter(Files::isRegularFile)
    .filter(CLASS_MATCHER::matches)
    .map(path -> parseClass(packageName, path))
    .collect(Collectors.toList());
 } catch (final Exception e) {
  throw new AssertionError("Failed to load classes in directory: " + directory, e);
 }
}

代码示例来源:origin: oblac/jodd

@BeforeAll
public static void beforeAll() throws Exception {
  if (BASE_DIR.exists()) {
    // clean up all subdirs & files
    Files.walk(BASE_DIR.toPath(),FileVisitOption.FOLLOW_LINKS)
        .sorted(Comparator.reverseOrder())
        .map(Path::toFile)
        .peek(System.out::println)
        .forEach(File::delete);
  }
  // created directory is needed for tests
  BASE_DIR.mkdirs();
}

代码示例来源:origin: oblac/jodd

@BeforeAll
static void beforeAll() throws Exception {
  if (BASE_DIR.exists()) {
    // clean up all subdirs & files
    Files.walk(BASE_DIR.toPath(), FileVisitOption.FOLLOW_LINKS)
        .sorted(Comparator.reverseOrder())
        .map(Path::toFile)
        .peek(System.out::println)
        .forEach(File::delete);
  }
  // created directory is needed for tests
  BASE_DIR.mkdirs();
}

代码示例来源:origin: oblac/jodd

@BeforeAll
public static void beforeAll() throws Exception {
  if (BASE_DIR.exists()) {
    // clean up all subdirs & files
    Files.walk(BASE_DIR.toPath(), FileVisitOption.FOLLOW_LINKS)
        .sorted(Comparator.reverseOrder())
        .map(Path::toFile)
        .peek(System.out::println)
        .forEach(File::delete);
  }
  // created directory is needed for tests
  BASE_DIR.mkdirs();
}

代码示例来源:origin: neo4j/neo4j

private Map<Path, Description> describeRecursively( Path directory ) throws IOException
{
  return Files.walk( directory )
      .map( path -> pair( directory.relativize( path ), describe( path ) ) )
      .collect( HashMap::new,
          ( pathDescriptionHashMap, pathDescriptionPair ) ->
              pathDescriptionHashMap.put( pathDescriptionPair.first(), pathDescriptionPair.other() ),
          HashMap::putAll );
}

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