Example usage for java.io File createNewFile

List of usage examples for java.io File createNewFile

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Introduction

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

Prototype

public boolean createNewFile() throws IOException

Source Link

Document

Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist.

Usage

From source file:Main.java

private static boolean checkFsWritable(String dir) {

    if (dir == null)
        return false;

    File directory = new File(dir);

    if (!directory.isDirectory()) {
        if (!directory.mkdirs()) {
            return false;
        }//from w w w.j ava 2  s  . c om
    }

    File f = new File(directory, ".keysharetestgzc");
    try {
        if (f.exists()) {
            f.delete();
        }
        if (!f.createNewFile()) {
            return false;
        }
        f.delete();
        return true;

    } catch (Exception e) {
    }
    return false;

}

From source file:Main.java

public static File getFilePath(String filePath, String fileName) {
    File file = null;
    makeRootDirectory(filePath);/*from   w w w.  j  a  v a 2  s  . c o m*/
    try {
        file = new File(filePath + fileName);
        if (!file.exists()) {
            file.createNewFile();
        }

    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return file;
}

From source file:com.pnf.jebauto.AutoUtil.java

/**
 * Create an Apache properties object out of a JEB2 configuration file.
 * /*from w  w w  .  j  a  va  2  s .co m*/
 * @param path path to a JEB2 configuration file, such as jeb-client.cfg or jeb-engines.cfg
 * @return
 */
public static PropertiesConfiguration createPropertiesConfiguration(String path) {
    File configfile = new File(path);

    if (!configfile.isFile()) {
        try {
            configfile.createNewFile();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    Parameters params = new Parameters();
    FileBasedConfigurationBuilder<PropertiesConfiguration> builder = new FileBasedConfigurationBuilder<>(
            PropertiesConfiguration.class).configure(params.properties().setFileName(path));
    builder.setAutoSave(true);

    try {
        return builder.getConfiguration();
    } catch (ConfigurationException e) {
        throw new RuntimeException(e);
    }
}

From source file:extractjavadoc.TraversalFiles.java

public static void fileList(File inputFile, int node, ArrayList<String> path, String folderPath,
        boolean ifGeneral, Map<String, Boolean> libraryTypeCondition) {
    node++;//from  w  w  w  .j  a v  a2  s.c  o m
    File[] files = inputFile.listFiles();
    if (!inputFile.exists()) {
        System.out.println("File doesn't exist!");
    } else if (inputFile.isDirectory()) {
        path.add(inputFile.getName());

        for (File f : files) {
            for (int i = 0; i < node - 1; i++) {
                System.out.print(" ");
            }
            System.out.print("|-" + f.getPath());

            String ext = FilenameUtils.getExtension(f.getName());
            if (ext.equals("html")) {
                try {
                    System.out.println(" => extracted");

                    //Get extracted file location and add it to output file name,
                    //in order to avoid files in different folder 
                    //have the same name.
                    String fileLocation = "";
                    for (String tmpPath : path) {
                        fileLocation += "-" + tmpPath;
                    }

                    String usefulJavadocFilePath = folderPath + "/" + "javadoc-" + f.getName() + fileLocation
                            + ".txt";
                    //                        String usefulJavadocFilePath = folderPath + "/" + "javadoc-" + f.getName() + ".txt";

                    //create output file for usefuljavadoc
                    File usefulJavadocFile = new File(usefulJavadocFilePath);
                    if (usefulJavadocFile.createNewFile()) {
                        System.out.println("Create successful: " + usefulJavadocFile.getName());
                    }

                    //extract useful javadoc
                    ExtractHTMLContent extractJavadoc = new ExtractHTMLContent(f, usefulJavadocFile, ifGeneral,
                            libraryTypeCondition);
                    extractJavadoc.extractHTMLContent();
                } catch (IOException ex) {
                    Logger.getLogger(TraversalFiles.class.getName()).log(Level.SEVERE, null, ex);
                }
            } else {
                //                   System.out.println(" isn't a java file or html file.");
                System.out.println(" isn't a html file.");
            }
            fileList(f, node, path, folderPath, ifGeneral, libraryTypeCondition);
        }
        path.remove(node - 1);
    }
}

From source file:TestRdfToJsonConversion.java

private static FileInputStream makeFile(String fnameJson) throws IOException {
    File f = new File(fnameJson);
    f.getParentFile().mkdirs();/* ww w .  j a  v a  2 s .com*/
    f.createNewFile();
    return new FileInputStream(f);
}

From source file:Main.java

public static void saveWeiboBitmap(Bitmap bitmap, String filename) {
    String status = Environment.getExternalStorageState();
    if (bitmap == null || !status.equals(Environment.MEDIA_MOUNTED)) {
        return;//from   w  w  w  . jav  a  2 s  . c  o m
    }
    File f = new File(filename);
    FileOutputStream fOut = null;
    boolean error = false;
    try {
        f.createNewFile();
    } catch (IOException e1) {
        e1.printStackTrace();
        error = true;
    }

    try {
        fOut = new FileOutputStream(f);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        error = true;
    }

    try {
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
    } catch (Exception e) {
        e.printStackTrace();
        error = true;
    }

    try {
        fOut.flush();
    } catch (IOException e) {
        e.printStackTrace();
    }
    try {
        fOut.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:Main.java

public static boolean writeErrorLogToSDCard(String path, String errorLog) {
    if (!(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))) // check if SD card is mounted
        return false;

    File file;
    file = new File(path);
    if (!file.exists()) {
        try {//  w w w.j  a  v  a 2s .  c  o m
            file.getParentFile().mkdirs();
            file.createNewFile();
        } catch (IOException ioe) {
            ioe.printStackTrace();
            return false;
        }
    }

    try {
        BufferedWriter writer = new BufferedWriter(new FileWriter(file, true)); //true means append to file
        writer.append(errorLog);
        writer.newLine();
        writer.append("-------------------------------"); // seperator
        writer.newLine();
        writer.close();
    } catch (IOException ioe) {
        ioe.printStackTrace();
        return false;
    }
    return true;
}

From source file:Main.java

public static boolean saveFile(String filePath, InputStream inputStream) throws IOException {
    boolean result = false;
    if (filePath != null && inputStream != null) {
        Log.d(TAG, "filePath:" + filePath);
        File file = new File(filePath);
        if (file.exists()) {
            file.delete();/*from w ww  .  j ava2  s.co m*/
        }
        if (file.createNewFile()) {
            FileOutputStream fos = new FileOutputStream(file.getAbsolutePath());
            byte[] buf = new byte[1024];
            int size = 0;
            while ((size = inputStream.read(buf, 0, 1024)) != -1) {
                fos.write(buf, 0, size);
            }

            fos.flush();
            fos.close();
            inputStream.close();
            result = true;
        }
    }
    return result;
}

From source file:de.flapdoodle.embedmongo.Files.java

public static File createTempFile(String tempFileName) throws IOException {
    File tempDir = new File(System.getProperty("java.io.tmpdir"));
    File tempFile = new File(tempDir, tempFileName);
    if (!tempFile.createNewFile())
        throw new IOException("Could not create Tempfile: " + tempFile);
    return tempFile;
}

From source file:it.restrung.rest.utils.IOUtils.java

/**
 * Serializes ans saves a Serializable object to a file
 *
 * @param object the source object//from w  w  w  . j  a  v  a  2 s .co m
 * @param file   the target file
 */
static public void saveSerializableObjectToDisk(Object object, File file) {
    try {
        file.delete();
        file.createNewFile();
        FileOutputStream fos = new FileOutputStream(file);
        GZIPOutputStream gzos = new GZIPOutputStream(fos);
        ObjectOutputStream out = new ObjectOutputStream(gzos);
        out.writeObject(object);
        out.flush();
        out.close();
    } catch (FileNotFoundException e) {
        Log.d(IOUtils.class.getName(), "Error, file not found for save serializable object to disk");
        throw new RuntimeException(e);
    } catch (IOException e) {
        Log.d(IOUtils.class.getName(), "Error on save serializable object");
        throw new RuntimeException(e);
    }
}