Example usage for java.nio.file DirectoryStream spliterator

Introduction

In this page you can find the example usage for java.nio.file DirectoryStream spliterator.

Prototype

default Spliterator<T> spliterator() 

Source Link

Document

Creates a Spliterator over the elements described by this Iterable .

Usage

From source file:it.polimi.diceH2020.launcher.FileService.java

public Stream<Path> getBaseSolutionsPath() {
    String strDir = settings.getSolInstanceDir();
    Path dir = FileSystems.getDefault().getPath(strDir);
    if (Files.notExists(dir)) {
        Path currentRelativePath = Paths.get("");
        dir = FileSystems.getDefault()
                .getPath(currentRelativePath.toAbsolutePath().toString() + File.pathSeparator + strDir);
    }/*from  ww  w .ja v  a2 s  . co  m*/
    DirectoryStream<Path> stream;
    try {
        stream = Files.newDirectoryStream(dir, "*.{json}");
        return StreamSupport.stream(stream.spliterator(), false);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
    }
}

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From source file:org.apache.storm.daemon.logviewer.utils.LogCleaner.java

/**
 * Return the last modified time for all log files in a worker's log dir.
 * Using stream rather than File.listFiles is to avoid large mem usage
 * when a directory has too many files.//from  w w w  .j  a v a  2 s.  com
 */
private long lastModifiedTimeWorkerLogdir(File logDir) {
    long dirModified = logDir.lastModified();

    DirectoryStream<Path> dirStream = null;
    try {
        dirStream = directoryCleaner.getStreamForDirectory(logDir);
    } catch (IOException e) {
        return dirModified;
    }

    if (dirStream == null) {
        return dirModified;
    }

    try {
        return StreamSupport.stream(dirStream.spliterator(), false).reduce(dirModified, (maximum, path) -> {
            long curr = path.toFile().lastModified();
            return curr > maximum ? curr : maximum;
        }, BinaryOperator.maxBy(Long::compareTo));
    } catch (Exception ex) {
        LOG.error(ex.getMessage(), ex);
        return dirModified;
    } finally {
        if (DirectoryStream.class.isInstance(dirStream)) {
            IOUtils.closeQuietly(dirStream);
        }
    }
}

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