Example usage for java.io File isDirectory

Introduction

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

Prototype

public boolean isDirectory()

Source Link

Document

Tests whether the file denoted by this abstract pathname is a directory.

Usage

From source file:Main.java

/**
 * Tests if the directory contains the essential root file for a Daisy book
 * //from   ww w.j  a  v a  2s .  c  o  m
 * Currently it's limited to checking for Daisy 2.02 books.
 * @param folder for the directory to check
 * @return true if the directory is deemed to contain a Daisy Book, else
 * false.
 */
public static boolean folderContainsDaisy2_02Book(File folder) {
    if (!folder.isDirectory()) {
        return false;
    }

    if (new File(folder, "ncc.html").exists()) {
        return true;
    }

    // Minor hack to cope with the potential of ALL CAPS filename, as per
    // http://www.daisy.org/z3986/specifications/daisy_202.html#ncc
    if (new File(folder, "NCC.HTML").exists()) {
        return true;
    }

    return false;
}

From source file:Main.java

/**
 * @param prodFile/*from   w  w w .  j  ava  2  s. co  m*/
 * @return true if a module is inserted and recognized by BMI, false otherwise.
 */
private static boolean validBMIDeviceRoot(File prodFile) {
    if (!prodFile.exists() || !prodFile.isDirectory()) {
        return false;
    }

    return prodFile.listFiles().length > 0;
}

From source file:Main.java

/**
 * Deletes the contents of {@code dir}. Throws an IOException if any file
 * could not be deleted, or if {@code dir} is not a readable directory.
 *///ww  w .j  av  a2s.c  o  m
public static void deleteContents(File dir) throws IOException {
    File[] files = dir.listFiles();
    if (files == null) {
        throw new IOException("not a readable directory: " + dir);
    }
    for (File file : files) {
        if (file.isDirectory()) {
            deleteContents(file);
        }
        if (!file.delete()) {
            throw new IOException("failed to delete file: " + file);
        }
    }
}

From source file:Main.java

public static void deleteDir(File f) {
    if (f.exists() && f.isDirectory()) {
        for (File file : f.listFiles()) {
            if (file.isDirectory())
                deleteDir(file);/*ww w.  java  2 s . c o m*/
            file.delete();
        }
        f.delete();
    }
}

From source file:Main.java

/**
 * deletes all Files and Subfolders in a directory
 * @param dir target directory/*from  ww w .j a  va2 s  .co m*/
 * @return
 */
public static boolean deleteDir(File dir) {
    if (dir.isDirectory()) {
        String[] entries = dir.list();
        for (int x = 0; x < entries.length; x++) {
            File aktFile = new File(dir.getPath(), entries[x]);
            deleteDir(aktFile);
        }
        if (dir.delete()) {
            return true;
        } else {
            return false;
        }
    } else {
        if (dir.delete()) {
            return true;
        } else {
            return false;
        }
    }
}

From source file:Main.java

/**
 * Delete every item below the File location
 *
 * @param file Location//from  ww  w  .  j  a va 2s. co m
 */
public static boolean recursiveDelete(File file) {
    if (file.isDirectory()) {
        String[] children = file.list();
        if (children == null)
            return false;
        for (String child : children) {
            recursiveDelete(new File(file, child));
        }
    }

    return file.delete();
}

From source file:Main.java

/**
 * //from w  ww .j  av  a  2s.  c  o  m
 * Example usage:
 * <pre>
 * SwingUtil.createFileFilter("JEQL script (*.jql)", "jql")
 * </pre>
 * @param description
 * @param extension
 * @return the file filter
 */
public static FileFilter createFileFilter(final String description, String extension) {
    final String dotExt = extension.startsWith(".") ? extension : "." + extension;
    FileFilter ff = new FileFilter() {
        public String getDescription() {
            return description;
        }

        public boolean accept(File f) {
            return f.isDirectory() || f.toString().toLowerCase().endsWith(dotExt);
        }
    };
    return ff;
}

From source file:Main.java

/**
 * Deletes a given folder directory in the form of a {@link File}
 * /*from   w w w . j  a  va 2 s  .  c  o  m*/
 * @param folder The folder to delete.
 * 
 * @return True if the folder was deleted, false otherwise.
 */
public static boolean deleteFolder(File folder) {
    if (folder.isDirectory()) {
        String[] children = folder.list();
        if (children != null) {
            for (String child : children) {
                boolean success = deleteFolder(new File(folder, child));
                if (!success)
                    return false;
            }
        }
    }

    return folder.delete();
}

From source file:Main.java

public static File[] listFiles(File f) {
    File[] list;/*from w ww .j av a 2s.com*/
    if (f.isDirectory()) {
        list = f.listFiles(filter);
        if (list != null) {
            Arrays.sort(list, comparator);
        }
    } else {
        list = new File[] {};
    }
    return list;
}

From source file:Main.java

public static void deleteFile(File dir) {
    if (dir != null && dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            deleteFile(new File(dir, children[i]));
        }/*from www .ja  va2  s .co  m*/
    }
    dir.delete();
}