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.testmax.util.FileUtility.java

public static void copyFolder(File src, File dest) throws IOException {

    if (src.isDirectory()) {

        //if directory not exists, create it
        if (!dest.exists()) {
            dest.mkdir();/*from   ww  w .ja v a  2  s  .c o  m*/
            System.out.println("Directory copied from " + src + "  to " + dest);
        }

        //list all the directory contents
        String files[] = src.list();

        for (String file : files) {
            //construct the src and dest file structure
            File srcFile = new File(src, file);
            File destFile = new File(dest, file);
            //recursive copy
            copyFolder(srcFile, destFile);
        }

    } else {
        //if file, then copy it
        //Use bytes stream to support all file types
        InputStream in = new FileInputStream(src);
        OutputStream out = new FileOutputStream(dest);

        byte[] buffer = new byte[1024];

        int length;
        //copy the file content in bytes 
        while ((length = in.read(buffer)) > 0) {
            out.write(buffer, 0, length);
        }

        in.close();
        out.close();
        System.out.println("File copied from " + src + " to " + dest);
    }
}

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From source file:autohit.common.Utils.java

/**
 *  Wipe a directory and everything in it
 * @param dest path to the directory//from  ww w  . ja v  a 2  s  .  co  m
 * @return string containing errors or messages
 */
public static String wipeDir(String dest) {

    String[] directory;
    File fsource = new File(dest);
    StringBuffer messages = new StringBuffer();
    String newdest;
    File newf;

    try {

        // get the source directory list
        directory = fsource.list();

        // rove the directory list
        for (int i = 0; i < directory.length; i++) {
            try {
                newdest = dest + '/' + directory[i];
                newf = new File(newdest);
                if (newf.isDirectory()) {
                    messages.append("Wipe directory=" + newdest + Constants.CRUDE_SEPERATOR);
                    messages.append(Utils.wipeDir(newdest));
                } else {
                    newf.delete();
                }
            } catch (Exception e) {
                messages.append("Error on wipe=" + dest + Constants.CRUDE_SEPERATOR);
            }
        }
        fsource.delete();
        messages.append("Done wipe of directory= " + dest + Constants.CRUDE_SEPERATOR);

    } catch (Exception e) {
        messages.append(
                "Serious error on wipe of= " + dest + " error=" + e.getMessage() + Constants.CRUDE_SEPERATOR);
    }
    return messages.toString();
}

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From source file:es.eucm.eadandroid.homeapp.repository.resourceHandler.RepoResourceHandler.java

/**
 * Deletes the specified directory// www .j ava 2 s .c o  m
 */
public static boolean removeDirectory(File directory) {

    if (directory == null)
        return false;
    if (!directory.exists())
        return true;
    if (!directory.isDirectory())
        return false;

    String[] list = directory.list();

    if (list != null) {
        for (int i = 0; i < list.length; i++) {
            File entry = new File(directory, list[i]);

            if (entry.isDirectory()) {
                if (!removeDirectory(entry))
                    return false;
            } else {
                if (!entry.delete())
                    return false;
            }
        }
    }

    return directory.delete();
}

---

From source file:com.clutch.ClutchSync.java

private static boolean copyDir(File src, File dest) throws IOException {
    if (!src.exists()) {
        Log.e(TAG, "Copy source does not exist: " + src);
        return false;
    }//  www. j a v  a  2  s.  c o  m
    String[] files = src.list();
    if (files == null) {
        if (!dest.getParentFile().exists()) {
            dest.getParentFile().mkdirs();
        }
        if (!dest.exists()) {
            dest.createNewFile();
        }
        InputStream in = new FileInputStream(src);
        OutputStream out = new FileOutputStream(dest);
        byte[] buffer = new byte[1024];
        int read;
        while ((read = in.read(buffer)) != -1) {
            out.write(buffer, 0, read);
        }
        in.close();
        out.close();
        return true;
    }

    for (String file : files) {
        if (!copyDir(new File(src, file), new File(dest, file))) {
            return false;
        }
    }

    return true;
}

---

From source file:com.diffplug.gradle.FileMisc.java

/** Deletes all empty folders (recursively). */
public static void deleteEmptyFolders(File d) throws IOException {
    retry(d, root -> {/*  w  w  w  .j  a  v a  2 s.co m*/
        // define the directory hierarchy
        TreeDef<File> dirTree = file -> Arrays.stream(file.listFiles()).filter(File::isDirectory)
                .collect(Collectors.toList());
        // find all the empty directories
        List<File> emptyDirs = TreeStream.depthFirst(dirTree, root).filter(dir -> dir.list().length == 0)
                .collect(Collectors.toList());
        for (File emptyDir : emptyDirs) {
            File toDelete = emptyDir;
            while (!toDelete.equals(root)) {
                Preconditions.checkArgument(toDelete.delete(), "Failed to delete %s", toDelete);
                toDelete = toDelete.getParentFile();
                if (toDelete.list().length > 0) {
                    break;
                }
            }
        }
        return null;
    });
}

---

From source file:de.fraunhofer.iosb.ivct.IVCTcommander.java

protected static Map<String, List<String>> readTestSuiteFiles(final String testsuite) {
    Map<String, List<String>> xyz = new HashMap<String, List<String>>();
    File mine;
    int i;//  www .  j av a2 s .  c  o  m
    String path = configParameters.pathTestsuite + "\\" + testsuite;
    String files[];
    mine = new File(path);
    files = mine.list();
    if (files == null) {
        return null;
    }
    for (i = 0; i < files.length; i++) {
        String p = new String(path + "\\" + files[i]);
        mine = new File(p);
        if (mine.isFile()) {
            List<String> ls;
            ls = readFile(p);
            xyz.put(files[i], ls);
        }
    }
    return xyz;
}

---

From source file:com.norconex.commons.lang.io.FileUtil.java

/**
 * Visits all files (and only files) under a directory, including 
 * sub-directories.//  ww w. ja va  2s  .co m
 * @param dir the directory
 * @param visitor the visitor
 */
public static void visitAllFiles(File dir, IFileVisitor visitor) {
    if (!dir.exists()) {
        return;
    } else if (dir.isDirectory()) {
        String[] children = dir.list();
        if (children != null) {
            for (int i = 0; i < children.length; i++) {
                visitAllFiles(new File(dir, children[i]), visitor);
            }
        }
    } else {
        visitor.visit(dir);
    }
}

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From source file:autohit.common.Utils.java

/**
 *  Copy entire directories.  I can't believe I have to write this.
 * @param source source is the source directory, without a training slash
 * @param dest destination is the destination directory, without a training slash
 * @param wipe destructive copy.  If true, it will destroy destination directories before
 * copying the files.  The files themselves are always overwritten.
 * @return string containing errors or messages
 *///from   w w w  .java  2s  . c o  m
public static String copyDir(String source, String dest, boolean wipe) {

    String[] directory;
    String destinationfile = "";
    String sourcefile;
    File fsource = new File(source);
    File fdest = new File(dest);
    int size;
    StringBuffer messages = new StringBuffer();

    try {

        // get the source directory list
        directory = fsource.list();

        // create the destination directory.  If it already exists, wipe it.
        if (fdest.exists()) {
            if (wipe == true) {
                messages.append(Utils.wipeDir(dest));
                fdest.mkdirs();
                messages.append("Make directory=" + dest + Constants.CRUDE_SEPERATOR);
            }
        } else {
            fdest.mkdirs();
            messages.append("Make directory=" + dest + Constants.CRUDE_SEPERATOR);
        }

        // rove the directory list
        for (int i = 0; i < directory.length; i++) {
            try {
                destinationfile = dest + '/' + directory[i];
                sourcefile = source + '/' + directory[i];
                fsource = new File(sourcefile);
                if (fsource.isDirectory()) {
                    messages.append("Is directory=" + sourcefile + Constants.CRUDE_SEPERATOR);
                    messages.append(Utils.copyDir(sourcefile, destinationfile, wipe));
                } else {
                    messages.append(Utils.copy(sourcefile, destinationfile));
                }
            } catch (Exception e) {
                messages.append("Error on=" + destinationfile + Constants.CRUDE_SEPERATOR);
            }
        }
        messages.append("Done with directory= " + source + Constants.CRUDE_SEPERATOR);

    } catch (Exception e) {
        messages.append("Serious error on=" + dest + " error=" + e.getMessage() + Constants.CRUDE_SEPERATOR);
    }
    return messages.toString();
}

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From source file:org.openmrs.module.webservices.docs.ResourceDocCreator.java

/**
 * Fills a map of resource names and their documentation objects with resource operations.
 * /*from   w w w. ja v  a 2 s.c  o  m*/
 * @param resouceDocMap a map of each resource name and its corresponding documentation object.
 */
private static void fillOperations(Map<String, ResourceDoc> resouceDocMap) throws IOException {

    File directory = new File(
            new File("").getAbsolutePath() + "/src/main/java/org/openmrs/module/webservices/rest/web/resource");

    //Look for all resource files in the resource folder.
    String[] files = directory.list();
    if (files == null)
        return;

    for (int i = 0; i < files.length; i++) {
        String file = files[i];

        //We are only interested in ......Resource.java files
        if (file.endsWith("Resource.java")) {

            //Resource name is class name without the .java extension
            String name = file.subSequence(0, file.length() - "Resource.java".length()).toString();
            ResourceDoc resourceDoc = resouceDocMap.get(name);

            //Get the complete path and name of the java source file.
            String fullPathName = directory.getAbsolutePath() + File.separator + file;

            String source = OpenmrsUtil.getFileAsString(new File(fullPathName));

            //Parse the file's JavaDoc annotations to get the supported web service operations.
            resourceDoc.setOperations(JavadocParser.parse(source));
        }
    }
}

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From source file:io.joynr.util.JoynrUtil.java

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

    if (sourceLocation.isDirectory()) {
        if (!targetLocation.exists()) {
            if (targetLocation.mkdir() == false) {
                logger.debug("Creating target directory " + targetLocation + " failed.");
            }//from ww w .  j  a v  a2 s.c  om
        }

        String[] children = sourceLocation.list();
        if (children == null) {
            return;
        }

        for (int i = 0; i < children.length; i++) {
            copyDirectory(new File(sourceLocation, children[i]), new File(targetLocation, children[i]));
        }
    } else {
        FileInputStream in = null;
        FileOutputStream out = null;
        try {
            in = new FileInputStream(sourceLocation);
            out = new FileOutputStream(targetLocation);
            copyStream(in, out);
        } finally {
            if (in != null) {
                in.close();
            }
            if (out != null) {
                out.close();
            }
        }
    }
}

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