Example usage for java.io File list

Introduction

In this page you can find the example usage for java.io File list.

Prototype

public String[] list() 

Source Link

Document

Returns an array of strings naming the files and directories in the directory denoted by this abstract pathname.

Usage

From source file:com.aaasec.sigserv.csspserver.utility.SpServerLogic.java

public static String getDocList() {
    File docDir = new File(SpModel.getDocDir());
    String[] fileList = docDir.list();
    List<String> docName = new ArrayList<String>();
    try {// www .  j a va 2 s  .  c  om
        for (String name : fileList) {
            if (name.toLowerCase().endsWith(".xml") || name.toLowerCase().endsWith(".pdf")) {
                docName.add(name);
            }
        }
    } catch (Exception ex) {
    }
    return gson.toJson(docName);
}

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From source file:de.tudarmstadt.ukp.dkpro.tc.core.util.SaveModelUtils.java

private static void copyToTargetLocation(File source, File destination) throws IOException {

    if (source.isDirectory()) {
        if (!destination.exists()) {
            destination.mkdir();//from  w  w w  . jav a2 s  .co  m
        }

        for (String file : source.list()) {
            File src = new File(source, file);
            File dest = new File(destination, file);
            copyToTargetLocation(src, dest);
        }

    } else {
        copySingleFile(source, destination);
    }
}

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From source file:com.lovejoy777sarootool.rootool.preview.IconPreview.java

private static void loadFromRes(final File file, final ImageView icon) {
    Drawable mimeIcon = null;// w  ww . j ava2s.c o  m

    if (file != null && file.isDirectory()) {
        String[] files = file.list();
        if (file.canRead() && files != null && files.length > 0)
            mimeIcon = mResources.getDrawable(R.drawable.type_folder);
        else
            mimeIcon = mResources.getDrawable(R.drawable.type_folder_empty);
    } else if (file != null && file.isFile()) {
        final String fileExt = FilenameUtils.getExtension(file.getName());
        mimeIcon = mMimeTypeIconCache.get(fileExt);

        if (mimeIcon == null) {
            final int mimeIconId = MimeTypes.getIconForExt(fileExt);
            if (mimeIconId != 0) {
                mimeIcon = mResources.getDrawable(mimeIconId);
                mMimeTypeIconCache.put(fileExt, mimeIcon);
            }
        }
    }

    if (mimeIcon != null) {
        icon.setImageDrawable(mimeIcon);
    } else {
        // default icon
        icon.setImageResource(R.drawable.type_unknown);
    }
}

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From source file:com.wordnik.swagger.codegen.util.FileUtil.java

public static void copyDirectory(File srcPath, File dstPath) {
    if (srcPath.isDirectory()) {
        if (!dstPath.exists()) {
            dstPath.mkdir();//from w ww.j av  a  2 s . c om
        }

        String files[] = srcPath.list();
        for (int i = 0; i < files.length; i++) {
            copyDirectory(new File(srcPath, files[i]), new File(dstPath, files[i]));
        }
    } else {
        if (!srcPath.exists()) {
            throw new CodeGenerationException("Source folder does not exist");
        } else {
            try {
                InputStream in = new FileInputStream(srcPath);
                OutputStream out = new FileOutputStream(dstPath);

                // Transfer bytes from in to out
                byte[] buf = new byte[1024];
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
                in.close();
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
                throw new CodeGenerationException("Copy directory operation failed");
            }
        }
    }
}

---

From source file:Main.java

/**
 * Gets the directory files list.//from w  ww  . ja  v a  2 s  .c om
 * 
 * @param directory
 *            the directory
 * @return the directory files list
 */
public static HashMap<String, File> getDirectoryFilesList(File directory) {

    final HashMap<String, File> directoryList = new HashMap<String, File>();

    if (directory == null) {
        return directoryList;
    }
    if (!directory.exists()) {
        return directoryList;
    }
    if (directory.isDirectory()) {
        final String[] list = directory.list();
        // Some JVMs return null for File.list() when the
        // directory is empty.
        if (list != null) {
            for (final String element : list) {
                final File entry = new File(directory, element);
                if (!entry.isDirectory()) {
                    String name = entry.getName();
                    if (name.length() > 0 && name.contains(".")) {
                        name = (String) name.subSequence(0, name.lastIndexOf('.'));
                        directoryList.put(name, entry);
                    }
                }
            }
        }
    }
    return directoryList;
}

---

From source file:org.callimachusproject.test.TemporaryServerFactory.java

private static File findCallimachusWebappCar() {
    File dist = new File("dist");
    if (dist.list() != null) {
        for (String file : dist.list()) {
            if (file.startsWith("callimachus-webapp") && file.endsWith(".car"))
                return new File(dist, file);
        }//from ww w  .j  a v a2s. c  o  m
    }
    File car = SystemProperties.getWebappCarFile();
    if (car != null && car.exists())
        return car;
    throw new AssertionError("Could not find callimachus-webapp.car in " + dist.getAbsolutePath());
}

---

From source file:ai.susi.json.JsonRepository.java

private static SortedSet<File> getDumps(final File path, final String prefix, final String suffix, int count) {
    String[] list = path.list();
    TreeSet<File> dumps = new TreeSet<File>(); // sort the names with a tree set
    for (String s : list) {
        if ((prefix == null || s.startsWith(prefix)) && (suffix == null || s.endsWith(suffix)))
            dumps.add(new File(path, s));
    }//from   ww  w.j a  v a 2  s. c  o  m
    return tailSet(dumps, count);
}

---

From source file:Main.java

/**
 * Indexes the given file using the given writer, or if a directory is given,
 * recurses over files and directories found under the given directory.
 * //  www  . j a  va  2s . c  o  m
 * NOTE: This method indexes one document per input file.  This is slow.  For good
 * throughput, put multiple documents into your input file(s).  An example of this is
 * in the benchmark module, which can create "line doc" files, one document per line,
 * using the
 * <a href="../../../../../contrib-benchmark/org/apache/lucene/benchmark/byTask/tasks/WriteLineDocTask.html"
 * >WriteLineDocTask</a>.
 *  
 * @param writer Writer to the index where the given file/dir info will be stored
 * @param file The file to index, or the directory to recurse into to find files to index
 * @throws IOException If there is a low-level I/O error
 */
static void indexDocs(IndexWriter writer, File file) throws IOException {
    // do not try to index files that cannot be read
    if (file.canRead()) {
        if (file.isDirectory()) {
            String[] files = file.list();
            // an IO error could occur
            if (files != null) {
                for (int i = 0; i < files.length; i++) {
                    indexDocs(writer, new File(file, files[i]));
                }
            }
        } else {

            FileInputStream fis;
            try {
                fis = new FileInputStream(file);
            } catch (FileNotFoundException fnfe) {
                // at least on windows, some temporary files raise this exception with an "access denied" message
                // checking if the file can be read doesn't help
                return;
            }

            try {

                // make a new, empty document
                Document doc = new Document();

                // Add the path of the file as a field named "path".  Use a
                // field that is indexed (i.e. searchable), but don't tokenize 
                // the field into separate words and don't index term frequency
                // or positional information:
                Field pathField = new StringField("path", file.getPath(), Field.Store.YES);
                doc.add(pathField);

                // Add the last modified date of the file a field named "modified".
                // Use a LongField that is indexed (i.e. efficiently filterable with
                // NumericRangeFilter).  This indexes to milli-second resolution, which
                // is often too fine.  You could instead create a number based on
                // year/month/day/hour/minutes/seconds, down the resolution you require.
                // For example the long value 2011021714 would mean
                // February 17, 2011, 2-3 PM.
                doc.add(new LongField("modified", file.lastModified(), Field.Store.NO));

                // Add the contents of the file to a field named "contents".  Specify a Reader,
                // so that the text of the file is tokenized and indexed, but not stored.
                // Note that FileReader expects the file to be in UTF-8 encoding.
                // If that's not the case searching for special characters will fail.
                doc.add(new TextField("contents",
                        new BufferedReader(new InputStreamReader(fis, StandardCharsets.UTF_8))));

                if (writer.getConfig().getOpenMode() == OpenMode.CREATE) {
                    // New index, so we just add the document (no old document can be there):
                    System.out.println("adding " + file);
                    writer.addDocument(doc);
                } else {
                    // Existing index (an old copy of this document may have been indexed) so 
                    // we use updateDocument instead to replace the old one matching the exact 
                    // path, if present:
                    System.out.println("updating " + file);
                    writer.updateDocument(new Term("path", file.getPath()), doc);
                }

            } finally {
                fis.close();
            }
        }
    }
}

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From source file:com.alibaba.jstorm.utils.JStormServerUtils.java

public static void createPid(String dir) throws Exception {
    File file = new File(dir);

    if (file.exists() == false) {
        file.mkdirs();/*from  w w w  . j  a  va2 s  .  co m*/
    } else if (file.isDirectory() == false) {
        throw new RuntimeException("pid dir:" + dir + " isn't directory");
    }

    String[] existPids = file.list();

    // touch pid before
    String pid = JStormUtils.process_pid();
    String pidPath = dir + File.separator + pid;
    PathUtils.touch(pidPath);
    LOG.info("Successfully touch pid  " + pidPath);

    for (String existPid : existPids) {
        try {
            JStormUtils.kill(Integer.valueOf(existPid));
            PathUtils.rmpath(dir + File.separator + existPid);
        } catch (Exception e) {
            LOG.warn(e.getMessage(), e);
        }
    }

}

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From source file:cn.fql.utility.FileUtility.java

/**
 * Copy source folder's content to a new folder, if there are existed duplicated files and overwrite
 * flag is true, it might overwrite it/*w  ww . j a  v  a2 s.c  o  m*/
 *
 * @param sourceFolder   source folder path
 * @param newFolder      new folder path
 * @param forceOverwrite determine whether it is required to overwrite for duplicated files
 */
public static void copyFolder(String sourceFolder, String newFolder, boolean forceOverwrite) {
    String oldPath = StringUtils.replace(sourceFolder, "/", File.separator);
    String newPath = StringUtils.replace(newFolder, "/", File.separator);
    if (!oldPath.endsWith(File.separator)) {
        oldPath = oldPath + File.separator;
    }
    if (!newPath.endsWith(File.separator)) {
        newPath = newPath + File.separator;
    }
    new File(newPath).mkdirs();
    File sourceDir = new File(oldPath);
    String[] files = sourceDir.list();
    File oldFile;
    File newFile;
    for (int i = 0; i < files.length; i++) {
        oldFile = new File(oldPath + files[i]);
        newFile = new File(newPath + files[i]);
        if (oldFile.isFile() && (!forceOverwrite || (!newFile.exists() || oldFile.length() != newFile.length()
                || oldFile.lastModified() > newFile.lastModified()))) {
            copyFile(oldFile.getPath(), newFile.getPath());
        }
        if (oldFile.isDirectory()) {
            copyFolder(oldPath + files[i], newPath + files[i], forceOverwrite);
        }
    }
}

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