Example usage for java.io File list

List of usage examples for java.io File list

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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:FileHelper.java

public static void synchronize(File source, File destination, boolean smart, long chunkSize)
        throws IOException {
    if (chunkSize <= 0) {
        System.out.println("Chunk size must be positive: using default value.");
        chunkSize = DEFAULT_COPY_BUFFER_SIZE;
    }/*from www  .  j av  a  2s.c  o  m*/
    if (source.isDirectory()) {
        if (!destination.exists()) {
            if (!destination.mkdirs()) {
                throw new IOException("Could not create path " + destination);
            }
        } else if (!destination.isDirectory()) {
            throw new IOException("Source and Destination not of the same type:" + source.getCanonicalPath()
                    + " , " + destination.getCanonicalPath());
        }
        String[] sources = source.list();
        Set<String> srcNames = new HashSet<String>(Arrays.asList(sources));
        String[] dests = destination.list();

        //delete files not present in source
        for (String fileName : dests) {
            if (!srcNames.contains(fileName)) {
                delete(new File(destination, fileName));
            }
        }
        //copy each file from source
        for (String fileName : sources) {
            File srcFile = new File(source, fileName);
            File destFile = new File(destination, fileName);
            synchronize(srcFile, destFile, smart, chunkSize);
        }
    } else {
        if (destination.exists() && destination.isDirectory()) {
            delete(destination);
        }
        if (destination.exists()) {
            long sts = source.lastModified() / FAT_PRECISION;
            long dts = destination.lastModified() / FAT_PRECISION;
            //do not copy if smart and same timestamp and same length
            if (!smart || sts == 0 || sts != dts || source.length() != destination.length()) {
                copyFile(source, destination, chunkSize);
            }
        } else {
            copyFile(source, destination, chunkSize);
        }
    }
}

From source file:com.depas.utils.FileUtils.java

/**
 * Deletes all files in the directory but not the directory itself
 * @param dirNameIn//from   www .j av  a  2 s.  c  o  m
 * @param filePrefixIn Null to delete all files or the prefix of the files to delete
 * @return True if all files were deleted
 */
public static boolean deleteFilesFromDirectory(final String dirNameIn, final String filePrefixIn) {

    boolean fileNotDeleted = false;
    String filePrefix = filePrefixIn;
    if (filePrefix != null) {
        filePrefix = filePrefix.toUpperCase();
    }
    File dir = new File(dirNameIn);

    if (dir.isDirectory() == false) {
        throw new IllegalArgumentException("Specified path [" + dirNameIn + "] is not a directory");
    }

    if (dir.exists()) {
        String[] children = dir.list();
        if (children != null) {
            for (int i = 0; i < children.length; i++) {
                String fileName = children[i];
                if (filePrefix == null || fileName.toUpperCase().startsWith(filePrefix)) {
                    File f = new File(dir, children[i]);
                    if (f.isFile()) {
                        if (f.delete() == false) {
                            fileNotDeleted = true;
                        }
                    }
                }
            }
        }
    }
    return (fileNotDeleted == false);

}

From source file:edu.stanford.epadd.launcher.Splash.java

public static boolean deleteDir(File f) {
    if (f.isDirectory()) {
        String[] children = f.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(f, children[i]));
            if (!success) {
                System.out.println("warning: failed to delete file " + f);
                return false;
            }/*from w w  w .  j av a2s . co  m*/
        }
    }

    // The directory is now empty so delete it
    return f.delete();
}

From source file:com.google.acre.script.JSFile.java

public static Scriptable jsStaticFunction_files(Context cx, Scriptable thisObj, Object[] args,
        Function funObj) {/*from w  w w  . j  a  va  2 s .  c  o m*/
    String[] files;
    Scriptable scope = ScriptableObject.getTopLevelScope(funObj);

    class ArgLadenFilenameFilter implements FilenameFilter {
        private Object _matcher;
        private Scriptable _scope;
        private Scriptable _this;
        private Context _cx;

        public ArgLadenFilenameFilter(Context cx, Scriptable scope, Scriptable thisObj, Object matcher) {
            _cx = cx;
            _scope = scope;
            _this = thisObj;
            _matcher = matcher;
        }

        public boolean accept(File dir, String fn) {
            if (_matcher instanceof Function) {
                Object[] fnargs = new Object[] { fn };
                return (Boolean) ((Function) _matcher).call(_cx, _scope, _this, fnargs);
            } else if (_matcher instanceof String) {
                return fn.matches((String) _matcher);
            } else {
                return false;
            }
        }
    }

    // This is our own copy of the CostCollector.
    CostCollector __costCollector = CostCollector.getInstance();
    __costCollector.collect("aidc");
    final long start_time = System.currentTimeMillis();

    if (args.length == 1) {
        File dir = new File((String) args[0]);
        files = dir.list();
    } else if (args.length == 2) {
        File dir = new File((String) args[0]);
        FilenameFilter fnfilter = new ArgLadenFilenameFilter(cx, scope, thisObj, args[1]);
        files = dir.list(fnfilter);
    } else {
        return null;
    }
    __costCollector.collect("aidw", System.currentTimeMillis() - start_time);

    if (files == null) {
        return null;
    } else {
        ArrayList<Object> files_list = new ArrayList<Object>();
        for (String f : files) {
            files_list.add(f);
        }

        Scriptable res = cx.newArray(scope, files_list.toArray());
        return res;
    }
}

From source file:moskitt4me.repositoryClient.core.util.RepositoryClientUtil.java

public static void copyDirectory(File sourceLocation, File targetLocation) throws Exception {

    if (sourceLocation.isDirectory()) {
        if (!targetLocation.exists()) {
            targetLocation.mkdirs();/*from ww w  .j a va2 s .c  om*/
            String[] children = sourceLocation.list();
            for (int i = 0; i < children.length; i++) {
                File source = new File(sourceLocation, children[i]);
                File target = new File(targetLocation, children[i]);
                copyDirectory(source, target);
            }
        }
    } else {
        InputStream in = new FileInputStream(sourceLocation);
        OutputStream out = new FileOutputStream(targetLocation);

        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.close();
    }
}

From source file:com.polyvi.xface.util.XFileUtils.java

/**
 * ?/*from   w  w  w  .j ava  2  s . c  om*/
 *
 * @param src
 *            ??
 * @param des
 *            ?
 * @throws IOException
 */
public static void copy(File srcLocation, File desLocation) throws IOException {
    if (srcLocation.isDirectory()) {
        if (!desLocation.exists() && !desLocation.mkdirs()) {
            throw new IOException("can't create dir " + desLocation.getAbsolutePath());
        }
        String[] children = srcLocation.list();
        for (int i = 0; i < children.length; i++) {
            copy(new File(srcLocation, children[i]), new File(desLocation, children[i]));
        }
    } else {
        File direcory = desLocation.getParentFile();
        if (direcory != null && !direcory.exists() && !direcory.mkdirs()) {
            throw new IOException("can't create dir " + direcory.getAbsolutePath());
        }

        InputStream in = new FileInputStream(srcLocation);
        OutputStream out = new FileOutputStream(desLocation);
        byte[] buf = new byte[XConstant.BUFFER_LEN];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.close();
    }
}

From source file:com.farmerbb.secondscreen.util.U.java

private static String[] getListOfProfiles(File file) {
    return file.list();
}

From source file:gate.util.Files.java

/**
 * This method takes a regular expression and a directory name and returns
 * the set of Files that match the pattern under that directory.
 *
 * @param regex regular expression path that begins with <code>pathFile</code>
 * @param pathFile directory path where to search for files
 * @return set of file paths under <code>pathFile</code> that matches
 *  <code>regex</code>/*  www. j a va 2  s  . co m*/
 */
public static Set<String> Find(String regex, String pathFile) {
    Set<String> regexfinal = new HashSet<String>();
    String[] tab;
    File file = null;

    //open a file
    try {
        file = new File(pathFile);
    } catch (NullPointerException npe) {
        npe.printStackTrace(Err.getPrintWriter());
    }

    Pattern pattern = Pattern.compile("^" + regex);

    if (file.isDirectory()) {
        tab = file.list();
        for (int i = 0; i <= tab.length - 1; i++) {
            String finalPath = pathFile + "/" + tab[i];
            Matcher matcher = pattern.matcher(finalPath);
            if (matcher.matches()) {
                regexfinal.add(finalPath);
            }
        }
    } else {
        if (file.isFile()) {
            Matcher matcher = pattern.matcher(pathFile);
            if (matcher.matches()) {
                regexfinal.add(pathFile);
            }
        }
    }

    return regexfinal;
}

From source file:co.mcme.animations.animations.commands.AnimationFactory.java

public static void delete(File file) throws IOException {

    if (file.isDirectory()) {
        //directory is empty, then delete it
        if (file.list().length == 0) {
            file.delete();//from   w  ww  . j a va  2  s.c o m
            System.out.println("Directory is deleted : " + file.getAbsolutePath());
        } else {
            //list all the directory contents
            String files[] = file.list();
            for (String temp : files) {
                //construct the file structure
                File fileDelete = new File(file, temp);
                //recursive delete
                delete(fileDelete);
            }

            //check the directory again, if empty then delete it
            if (file.list().length == 0) {
                file.delete();
                System.out.println("Directory is deleted : " + file.getAbsolutePath());
            }
        }
    } else {
        //if file, then delete it
        file.delete();
        System.out.println("File is deleted : " + file.getAbsolutePath());
    }
}

From source file:com.evolveum.midpoint.test.ldap.OpenDJController.java

/**
 * Delete a directory and its contents.//  w ww  .  j  a  v a 2 s.  c o  m
 * 
 * @param dir
 *            The name of the directory to delete.
 * @throws IOException
 *             If the directory could not be deleted.
 */
public static void deleteDirectory(File dir) throws IOException {
    if (dir.isDirectory()) {
        // Recursively delete sub-directories and files.
        for (String child : dir.list()) {
            deleteDirectory(new File(dir, child));
        }
    }

    dir.delete();
}