java.nio.file.Files.find()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.find()方法的一些代码示例，展示了Files.find()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.find()方法的具体详情如下：
包路径：java.nio.file.Files
类名称：Files
方法名：find

Files.find介绍

暂无

代码示例

代码示例来源：origin: apache/nifi

protected Stream<Path> getPathStream(final Path basePath, final int maxDepth, final BiPredicate<Path, BasicFileAttributes> matcher) throws IOException {
  return Files.find(basePath, maxDepth, matcher, FileVisitOption.FOLLOW_LINKS);
}

代码示例来源：origin: Vedenin/useful-java-links

Stream<Path> streamFromFind = Files.find(Paths.get(""), 10, (p,a) -> true);
System.out.println("streamFromFind = " + streamFromFind.collect(Collectors.toList())); // print list of files

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

@Test
public void testToEndOnDeletedQueueFiles() throws IOException {
  if (OS.isWindows()) {
    System.err.println("#460 Cannot test delete after close on windows");
    return;
  }
  File dir = getTmpDir();
  try (ChronicleQueue q = builder(dir, wireType).build()) {
    ExcerptAppender append = q.acquireAppender();
    append.writeDocument(w -> w.write(() -> "test").text("before text"));
    ExcerptTailer tailer = q.createTailer();
    // move to the end even though it doesn't exist yet.
    tailer.toEnd();
    append.writeDocument(w -> w.write(() -> "test").text("text"));
    assertTrue(tailer.readDocument(w -> w.read(() -> "test").text("text", Assert::assertEquals)));
    Files.find(dir.toPath(), 1, (p, basicFileAttributes) -> p.toString().endsWith("cq4"), FileVisitOption.FOLLOW_LINKS)
        .forEach(path -> assertTrue(path.toFile().delete()));
    ChronicleQueue q2 = builder(dir, wireType).build();
    tailer = q2.createTailer();
    tailer.toEnd();
    assertEquals(TailerState.UNINITIALISED, tailer.state());
    append = q2.acquireAppender();
    append.writeDocument(w -> w.write(() -> "test").text("before text"));
    assertTrue(tailer.readDocument(w -> w.read(() -> "test").text("before text", Assert::assertEquals)));
  }
}

代码示例来源：origin: google/bundletool

/** Tries to locate adb utility under "platform-tools". */
 public Optional<Path> locateAdb(Path sdkDir) {
  Path platformToolsDir = sdkDir.resolve("platform-tools");
  if (!Files.isDirectory(platformToolsDir)) {
   return Optional.empty();
  }

  // Expecting to find one entry.
  try (Stream<Path> pathStream =
    Files.find(
      platformToolsDir,
      /* maxDepth= */ 1,
      (path, attributes) -> adbPathMatcher.matches(path) && Files.isExecutable(path))) {
   return pathStream.findFirst();
  } catch (IOException e) {
   throw CommandExecutionException.builder()
     .withCause(e)
     .withMessage("Error while trying to locate adb in SDK dir '%s'.", sdkDir)
     .build();
  }
 }
}

代码示例来源：origin: google/bundletool

try (Stream<Path> aapt2Binaries = Files.find(outputDir, /* maxDepth= */ 3, AAPT2_MATCHER)) {
 aapt2 = aapt2Binaries.collect(onlyElement());
  Files.find(Paths.get(osDirUrl.toURI()), /* maxDepth= */ 3, AAPT2_MATCHER)) {
 Optional<Path> aapt2Path = aapt2Binaries.findFirst();
 if (!aapt2Path.isPresent()) {

代码示例来源：origin: aws/aws-sdk-java-v2

private Stream<Path> findModelRoots() throws MojoExecutionException {
  try {
    return Files.find(codeGenResources.toPath(), 10, this::isModelFile)
          .map(Path::getParent)
          .sorted(this::modelSharersLast);
  } catch (IOException e) {
    throw new MojoExecutionException("Failed to find '" + MODEL_FILE + "' files in " + codeGenResources, e);
  }
}

代码示例来源：origin: io.thorntail/tools

private static synchronized void find(File moduleDir, DependencyManager dependencyManager) throws IOException {
  Files.find(moduleDir.toPath(), 20,
      (p, __) -> p.getFileName().toString().equals("module.xml"))
      .forEach(dependencyManager::addAdditionalModule);
}

代码示例来源：origin: org.eclipse.che.core/che-core-api-installer

private List<Path> findInstallersDescriptors(Path dir) {
 try {
  return Files.find(dir, 1, (path, basicFileAttributes) -> path.toString().endsWith(".json"))
    .collect(Collectors.toList());
 } catch (IOException e) {
  throw new IllegalStateException(e);
 }
}

代码示例来源：origin: OpenNMS/opennms

private List<File> getRulesFiles() throws IOException {
  final Path droolsRulesRoot = rulesFolder.toPath();
  if (!droolsRulesRoot.toFile().isDirectory()) {
    throw new IllegalStateException("Expected to find Drools rules for alarmd in '" + droolsRulesRoot
        + "' but the path is not a directory! Aborting.");
  }
  return Files.find(droolsRulesRoot, 3, (path, attrs) -> attrs.isRegularFile()
      && path.toString().endsWith(".drl"))
      .map(Path::toFile)
      .sorted(Comparator.naturalOrder())
      .collect(Collectors.toList());
}

代码示例来源：origin: org.opennms/opennms-alarmd

private List<File> getRulesFiles() throws IOException {
  final Path droolsRulesRoot = rulesFolder.toPath();
  if (!droolsRulesRoot.toFile().isDirectory()) {
    throw new IllegalStateException("Expected to find Drools rules for alarmd in '" + droolsRulesRoot
        + "' but the path is not a directory! Aborting.");
  }
  return Files.find(droolsRulesRoot, 3, (path, attrs) -> attrs.isRegularFile()
      && path.toString().endsWith(".drl"))
      .map(Path::toFile)
      .sorted(Comparator.naturalOrder())
      .collect(Collectors.toList());
}

代码示例来源：origin: org.onehippo.cms7/hippo-repository-engine

/**
   * Collect all the files in a directory and its subdirectories
   *
   * @param dir directory
   */
  private List<String> getFilesInDirectory(final Path dir) throws IOException {
    final List<String> paths = new ArrayList<>();
    final BiPredicate<Path, BasicFileAttributes> matcher =
        (filePath, fileAttr) -> fileAttr.isRegularFile();
    Files.find(dir, Integer.MAX_VALUE, matcher).forEachOrdered(p -> paths.add(p.toString()));
    return paths;
  }
}

代码示例来源：origin: kousen/java_8_recipes

public static void main(String[] args) {
    try (Stream<Path> paths = Files.find(Paths.get("src/main/java"), Integer.MAX_VALUE,
        (path, attributes) -> !attributes.isDirectory() && path.toString().contains("fileio"))) {
      paths.forEach(System.out::println);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}

代码示例来源：origin: com.yahoo.vespa/filedistribution

public static File compress(File directory, File outputFile) throws IOException {
  return compress(directory, Files.find(Paths.get(directory.getAbsolutePath()),
      recurseDepth,
      (p, basicFileAttributes) -> basicFileAttributes.isRegularFile())
      .map(Path::toFile).collect(Collectors.toList()), outputFile);
}

代码示例来源：origin: com.yahoo.vespa/filedistribution

public static byte[] compress(File directory) throws IOException {
  return compress(directory, Files.find(Paths.get(directory.getAbsolutePath()),
                     recurseDepth,
                     (p, basicFileAttributes) -> basicFileAttributes.isRegularFile())
      .map(Path::toFile).collect(Collectors.toList()));
}

代码示例来源：origin: com.github.robozonky/robozonky-common

public static Optional<File> findFolder(final String folderName) {
  final Path root = new File(System.getProperty("user.dir")).toPath();
  return Try.withResources(() -> Files.find(root, 1, (path, attr) -> attr.isDirectory()))
      .of(s -> s.map(Path::toFile)
          .filter(f -> Objects.equals(f.getName(), folderName))
          .findFirst())
      .getOrElseGet(ex -> {
        FileUtil.LOGGER.warn("Exception while walking file tree.", ex);
        return Optional.empty();
      });
}

代码示例来源：origin: RoboZonky/robozonky

public static Optional<File> findFolder(final String folderName) {
  final Path root = new File(System.getProperty("user.dir")).toPath();
  return Try.withResources(() -> Files.find(root, 1, (path, attr) -> attr.isDirectory()))
      .of(s -> s.map(Path::toFile)
          .filter(f -> Objects.equals(f.getName(), folderName))
          .findFirst())
      .getOrElseGet(ex -> {
        LOGGER.warn("Exception while walking file tree.", ex);
        return Optional.empty();
      });
}

代码示例来源：origin: de.unijena.bioinf.ms/gibbs_sampling

public static Map<String, List<FragmentsCandidate>> parseMFCandidatesEval(Path treeDir, Path mgfFile, int maxCandidates, int workercount, boolean ignoreSilicon) throws IOException {
    System.out.println(treeDir.toString());
    Path[] trees = Files.find(treeDir, 2, (path, basicFileAttributes) -> path.toString().endsWith(".json")).toArray(s -> new Path[s]);
    System.out.println("number "+trees.length);

    final MsExperimentParser parser = new MsExperimentParser();
    List<Ms2Experiment> allExperiments = parser.getParser(mgfFile.toFile()).parseFromFile(mgfFile.toFile());

    Ms2Dataset dataset = new MutableMs2Dataset(allExperiments, "default", Double.NaN, (new Sirius("default")).getMs2Analyzer().getDefaultProfile());
    Ms2DatasetPreprocessor preprocessor = new Ms2DatasetPreprocessor(true);
    dataset = preprocessor.preprocess(dataset);
//        return parseMFCandidates(trees, allExperiments, maxCandidates, workercount, ignoreSilicon);
    return parseMFCandidatesEval(trees, dataset.getExperiments(), maxCandidates, workercount, ignoreSilicon);
  }

代码示例来源：origin: de.unijena.bioinf.ms/gibbs_sampling

public static Map<String, List<FragmentsCandidate>> parseMFCandidates(Path treeDir, Path mgfFile, int maxCandidates, int workercount, boolean ignoreSilicon) throws IOException {
    System.out.println(treeDir.toString());
    Path[] trees = Files.find(treeDir, 2, (path, basicFileAttributes) -> path.toString().endsWith(".json")).toArray(s -> new Path[s]);

    final MsExperimentParser parser = new MsExperimentParser();
    List<Ms2Experiment> allExperiments = parser.getParser(mgfFile.toFile()).parseFromFile(mgfFile.toFile());

    Ms2Dataset dataset = new MutableMs2Dataset(allExperiments, "default", Double.NaN, (new Sirius("default")).getMs2Analyzer().getDefaultProfile());
    Ms2DatasetPreprocessor preprocessor = new Ms2DatasetPreprocessor(true);
    dataset = preprocessor.preprocess(dataset);
//        return parseMFCandidates(trees, allExperiments, maxCandidates, workercount, ignoreSilicon);
    return parseMFCandidates(trees, dataset.getExperiments(), maxCandidates, workercount, ignoreSilicon);
  }

代码示例来源：origin: apache/archiva

protected List<ArtifactMetadata> getArtifactMetadataFromDir( String repoId, String projectName, Path repoDir, Path vDir ) throws IOException
  {
    Maven2RepositoryPathTranslator translator = new Maven2RepositoryPathTranslator( new ArrayList<>(  ) );
    return Files.find(vDir, 1,
          (path, basicFileAttributes) -> basicFileAttributes.isRegularFile() && path.getFileName().toString().startsWith(projectName))
      .map( path ->
                translator.getArtifactForPath( repoId, repoDir.relativize( path ).toString() )
      ).collect( Collectors.toList());
  }
}

代码示例来源：origin: EvoSuite/evosuite

private void verifyLogFilesExist(Path targetProject, String className) throws Exception{
  Path dir = getESFolder(targetProject);
  Path tmp = Files.find(dir,1, (p,a) -> p.getFileName().toString().startsWith("tmp_")).findFirst().get();
  Path logs = tmp.resolve("logs").resolve(className);
  assertTrue(Files.exists(logs.resolve("std_err_CLIENT.log")));
  assertTrue(Files.exists(logs.resolve("std_err_MASTER.log")));
  assertTrue(Files.exists(logs.resolve("std_out_CLIENT.log")));
  assertTrue(Files.exists(logs.resolve("std_out_MASTER.log")));
}

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