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:de.ingrid.iplug.csw.dsc.tools.FileUtils.java

/**
 * This function will copy files or directories from one location to another.
 * note that the source and the destination must be mutually exclusive. This 
 * function can not be used to copy a directory to a sub directory of itself.
 * The function will also have problems if the destination files already exist.
 * @param src -- A File object that represents the source for the copy
 * @param dest -- A File object that represnts the destination for the copy.
 * @throws IOException if unable to copy.
 * /*from  w  w  w .j a  va  2  s  .  co m*/
 * Source: http://www.dreamincode.net/code/snippet1443.htm
 */
public static void copyRecursive(File src, File dest) throws IOException {
    //Check to ensure that the source is valid...
    if (!src.exists()) {
        throw new IOException("copyFiles: Can not find source: " + src.getAbsolutePath() + ".");
    } else if (!src.canRead()) { //check to ensure we have rights to the source...
        throw new IOException("copyFiles: No right to source: " + src.getAbsolutePath() + ".");
    }
    //is this a directory copy?
    if (src.isDirectory()) {
        if (!dest.exists()) { //does the destination already exist?
            //if not we need to make it exist if possible (note this is mkdirs not mkdir)
            if (!dest.mkdirs()) {
                throw new IOException("copyFiles: Could not create direcotry: " + dest.getAbsolutePath() + ".");
            }
        }
        //get a listing of files...
        String list[] = src.list();
        //copy all the files in the list.
        for (int i = 0; i < list.length; i++) {
            File dest1 = new File(dest, list[i]);
            File src1 = new File(src, list[i]);
            copyRecursive(src1, dest1);
        }
    } else {
        //This was not a directory, so lets just copy the file
        FileInputStream fin = null;
        FileOutputStream fout = null;
        byte[] buffer = new byte[4096]; //Buffer 4K at a time (you can change this).
        int bytesRead;
        try {
            //open the files for input and output
            fin = new FileInputStream(src);
            fout = new FileOutputStream(dest);
            //while bytesRead indicates a successful read, lets write...
            while ((bytesRead = fin.read(buffer)) >= 0) {
                fout.write(buffer, 0, bytesRead);
            }
            fin.close();
            fout.close();
            fin = null;
            fout = null;
        } catch (IOException e) { //Error copying file... 
            IOException wrapper = new IOException("copyFiles: Unable to copy file: " + src.getAbsolutePath()
                    + "to" + dest.getAbsolutePath() + ".");
            wrapper.initCause(e);
            wrapper.setStackTrace(e.getStackTrace());
            throw wrapper;
        } finally { //Ensure that the files are closed (if they were open).
            if (fin != null) {
                fin.close();
            }
            if (fout != null) {
                fin.close();
            }
        }
    }
}

From source file:de.u808.simpleinquest.util.DirectoryTraverser.java

private void processRootDirectory(File dir) {
    String[] files = dir.list();
    if (files != null) {
        for (String fileName : files) {
            File file = new File(dir, fileName);
            this.processFile(file);
        }/*from   w ww .  j  a  v  a2  s .  c om*/
    } else {
        String rootDDir = (dir == null ? "Null" : dir.getAbsolutePath());
        log.info("No files fount to process in directory: " + rootDDir);
    }
}

From source file:com.pari.nm.utils.backup.BackupRestore.java

public static boolean deleteDirContents(File dir) {
    if (dir.isDirectory()) {
        String[] children = dir.list();

        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDirContents(new File(dir, children[i]));

            if (!success) {
                return false;
            }//from w  w w .  j av a  2s  .co m
        }
    }

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

From source file:camelinaction.SpringFileRollbackTest.java

@Test
public void testOk() throws Exception {
    template.sendBodyAndHeader("direct:confirm", "bumper", "to", "someone@somewhere.org");

    File file = new File("target/mail/backup/");
    String[] files = file.list();
    assertEquals("There should be one file", 1, files.length);
}

From source file:FileTable2.java

public void setFileStats(File dir) {
    String files[] = dir.list();
    data = new Object[files.length][titles.length];

    for (int i = 0; i < files.length; i++) {
        File tmp = new File(files[i]);
        data[i][0] = new Boolean(tmp.isDirectory());
        data[i][1] = tmp.getName();/*w ww  .  j a va 2s .  com*/
        data[i][2] = new Boolean(tmp.canRead());
        data[i][3] = new Boolean(tmp.canWrite());
        data[i][4] = new Long(tmp.length());
        data[i][5] = new Date(tmp.lastModified());
    }

    // Just in case anyone's listening...
    fireTableDataChanged();
}

From source file:cognition.pipeline.commandline.CommandRunFromFileSystem.java

@Override
public void process(CommandLine cmd) {
    folderAbsolutePath = cmd.getOptionValue("folder");
    File folder = new File(folderAbsolutePath);
    String[] files = folder.list();
    List<String> fileList = new ArrayList<>();
    fileList.addAll(Arrays.asList(files));

    fileList.parallelStream().forEach(file -> {
        String absoluteFilePath = folderAbsolutePath + file;
        logger.info("Processing " + absoluteFilePath);
        dncPipelineService.processFile(absoluteFilePath);
    });//from ww  w . j  a  v a 2 s.  co m

    logger.info("Finished all files in directory " + folderAbsolutePath);
}

From source file:camelinaction.SpringFileRollbackTest.java

@Test
public void testRollback() throws Exception {
    try {/*from ww  w  . j  av  a2  s.c  o  m*/
        template.sendBodyAndHeader("direct:confirm", "bumper", "to", "FATAL");
        fail("Should have thrown an exception");
    } catch (CamelExecutionException e) {
        assertIsInstanceOf(IllegalArgumentException.class, e.getCause());
        assertEquals("Simulated fatal error", e.getCause().getMessage());
    }

    // give time for onCompletion to execute
    // as its being executed asynchronously in another thread
    Thread.sleep(1000);

    File file = new File("target/mail/backup/");
    String[] files = file.list();
    assertEquals("There should be no files", 0, files.length);
}

From source file:CreatingTreeModel.java

public Object getChild(Object parent, int index) {
    File directory = (File) parent;
    String[] directoryMembers = directory.list();
    return (new File(directory, directoryMembers[index]));
}

From source file:org.broadleafcommerce.admin.util.controllers.RemoveFileController.java

private boolean deleteDir(File dir) {
    if (dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;
            }/*from   w  ww  .j a v  a  2 s .co m*/
        }
    }

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

From source file:FileTreeFrame.java

public Object getChild(Object parent, int index) {
    File directory = (File) parent;
    String[] children = directory.list();
    return new TreeFile(directory, children[index]);
}