Example usage for java.io File delete

Introduction

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

Prototype

public boolean delete()

Source Link

Document

Deletes the file or directory denoted by this abstract pathname.

Usage

From source file:brut.util.OS.java

public static void rmfile(String file) throws BrutException {
    File del = new File(file);
    del.delete();
}

From source file:Main.java

public static void deleteDirectory(File f) {
    if (f.isDirectory()) {
        for (File c : f.listFiles())
            deleteDirectory(c);/*from w w  w.ja va 2s.  c  om*/
    }

    f.delete();
}

From source file:com.theminequest.MineQuest.Quest.QuestWorldManip.java

public static World copyWorld(World w) throws IOException {
    String newname;/*  w ww. ja  v  a2  s . com*/
    File newdirectory;
    do {
        newname = "mqinstance_" + randGen.nextLong();
        newdirectory = new File(newname);
    } while (newdirectory.exists());
    FileUtils.copyDirectory(w.getWorldFolder(), newdirectory);

    File uid = new File(newdirectory + File.separator + "uid.dat");
    if (uid.exists())
        uid.delete();

    WorldCreator tmp = new WorldCreator(newname);
    tmp.copy(w);
    return Bukkit.createWorld(tmp);
}

From source file:edu.brandeis.wisedb.scheduler.experiments.SkewDistributionExperiment.java

public static void calculateBurn(int samples) throws Exception {
    TightenableSLA sla = PercentSLA.nintyTenSLA();
    //TightenableSLA sla = new SimpleLatencyModelSLA(9 * 60 * 1000, 1);
    //TightenableSLA sla = PerQuerySLA.getLatencyTimesN(2.0);
    //TightenableSLA sla = new AverageLatencyModelSLA(7 * 60 * 1000, 1);
    QueryTimePredictor qtp = new QueryTimePredictor();

    File f = new File("distSkew.csv");
    if (f.exists())
        f.delete();

    try (Trainer t = new Trainer("distSkew.csv", sla)) {
        t.train(2000, 12);//from w  ww.ja  va  2  s . c o  m
    }

    DTSearcher dt = new DTSearcher("distSkew.csv", qtp, sla);
    AStarGraphSearch astar = new AStarGraphSearch(new UnassignedQueryTimeHeuristic(qtp), sla, qtp);
    //FirstFitDecreasingGraphSearch astar = new FirstFitDecreasingGraphSearch(sla, qtp);

    ChiSquareTest cst = new ChiSquareTest();
    ChiSquaredDistribution cqd = new ChiSquaredDistribution(qtp.QUERY_TYPES.length - 1);
    double[] expceted = Arrays.stream(qtp.QUERY_TYPES).mapToDouble(i -> 20.0 / (qtp.QUERY_TYPES.length))
            .toArray();

    System.out.println("Chi\tDT\tOpt");

    for (int i = 0; i < samples; i++) {
        Set<ModelQuery> smp = ModelWorkloadGenerator.randomQueries(20);

        // reject samples that don't have at least one of each query type
        long repr = smp.stream().mapToInt(q -> q.getType()).distinct().count();
        if (repr != qtp.QUERY_TYPES.length) {
            i--;
            continue;
        }

        Map<Integer, List<ModelQuery>> groups = smp.stream().collect(Collectors.groupingBy(q -> q.getType()));

        long obs[] = Arrays.stream(qtp.QUERY_TYPES).mapToLong(v -> groups.get(v).size()).toArray();

        double chi = cst.chiSquare(expceted, obs);
        chi = cqd.cumulativeProbability(chi);

        Cost dtCost = dt.getCostForQueries(smp, sla);
        Cost optCost = astar.getCostForQueries(smp, sla);

        System.out.println(chi + "\t" + dtCost.getTotalCost() + "\t" + optCost.getTotalCost());
    }

}

From source file:Main.java

public static boolean deleteFileOrDir(File path) {
    if (path == null || !path.exists()) {
        return true;
    }//from   w  ww .  ja  va2  s  . com
    if (path.isFile()) {
        return path.delete();
    }
    File[] files = path.listFiles();
    if (files != null) {
        for (File file : files) {
            deleteFileOrDir(file);
        }
    }
    return path.delete();
}

From source file:Main.java

public static boolean deleteDirectory(String fileName) {
    boolean status;
    SecurityManager checker = new SecurityManager();

    if (!fileName.equals("")) {

        File path = Environment.getExternalStorageDirectory();
        File newPath = new File(path.toString() + fileName);
        checker.checkDelete(newPath.toString());
        if (newPath.isDirectory()) {
            String[] listfile = newPath.list();
            // delete all files within the specified directory and then
            // delete the directory
            try {
                for (int i = 0; i < listfile.length; i++) {
                    File deletedFile = new File(newPath.toString() + "/" + listfile[i].toString());
                    deletedFile.delete();
                }//from   www.j a  v a2s  . co  m
                newPath.delete();
                Log.i("DirectoryManager deleteDirectory", fileName);
                status = true;
            } catch (Exception e) {
                e.printStackTrace();
                status = false;
            }

        } else
            status = false;
    } else
        status = false;
    return status;
}

From source file:Main.java

public static boolean deleteSpicificFile(String filePath) {
    if (!isEmpty(filePath) && isSDCardAvailable()) {
        try {//from www . j  av a  2s .c o m
            File file = new File(filePath);
            if (file.exists() && file.isFile()) {
                return file.delete();
            }
        } catch (Exception e) {

            if (e != null && isNotEmpty(e.getMessage())) {
                Log.e("@@@", e.getMessage());
            }
        }
    }
    return false;
}

From source file:Main.java

public static boolean deleteFile(String path) {
    try {/*from   w  w  w  .  j  a va2s .  co  m*/
        File fileToDelete = new File(path);
        if (fileToDelete.exists()) {
            fileToDelete.delete();
        }
    } catch (Exception e) {
        return false;
    }

    return true;
}

From source file:Main.java

static File rename(File file, String newName) {
    File newFile = new File(file.getParent(), newName);
    if (!newFile.equals(file)) {
        if (newFile.exists()) {
            if (newFile.delete()) {
                Log.d("FileUtil", "Delete old " + newName + " file");
            }//w  ww  .  j ava 2  s .  c  om
        }
        if (file.renameTo(newFile)) {
            Log.d("FileUtil", "Rename file to " + newName);
        }
    }
    return newFile;
}

From source file:Main.java

public static boolean deleteDirectory(String fileName) {
    boolean status;
    SecurityManager checker = new SecurityManager();

    if (!fileName.equals("")) {

        File path = Environment.getExternalStorageDirectory();
        File newPath = new File(path.toString() + fileName);
        checker.checkDelete(newPath.toString());
        if (newPath.isDirectory()) {
            String[] listfile = newPath.list();
            // delete all files within the specified directory and then
            // delete the directory
            try {
                for (int i = 0; i < listfile.length; i++) {
                    File deletedFile = new File(newPath.toString() + "/" + listfile[i].toString());
                    deletedFile.delete();
                }//  ww  w  .  j a  va 2s .c  o  m
                newPath.delete();
                Log.d(TAG, "DirectoryManager deleteDirectory" + fileName);
                status = true;
            } catch (Exception e) {
                e.printStackTrace();
                status = false;
            }

        } else
            status = false;
    } else
        status = false;
    return status;
}