Example usage for java.io FileOutputStream flush

Introduction

In this page you can find the example usage for java.io FileOutputStream flush.

Prototype

public void flush() throws IOException 

Source Link

Document

Flushes this output stream and forces any buffered output bytes to be written out.

Usage

From source file:ec.edu.chyc.manejopersonal.managebean.util.BeansUtils.java

/***
 * Dado el archivo de fileUpload de primefaces (en el evento fileUpload), sube el archivo a un destino
 * @param origen Variable tipo UploadedFile obtenida del evento fileUpload del componente de primefaces, ah se obtendr el archivo
 * @param destino Archivo donde se guardar el archivo
 * @throws IOException Excepcin ocurrida al crear, leer o escribir el archivo
 *//*from  w w w .j ava2s.c  o m*/
public static void subirArchivoPrimefaces(UploadedFile origen, File destino) throws IOException {
    destino.createNewFile();

    FileOutputStream fileOutputStream = null;
    InputStream inputStream = null;
    try {
        fileOutputStream = new FileOutputStream(destino);
        byte[] buffer = new byte[ServerUtils.BUFFER_SIZE];
        int bulk;
        inputStream = origen.getInputstream();
        while (true) {
            bulk = inputStream.read(buffer);
            if (bulk < 0) {
                break;
            }
            fileOutputStream.write(buffer, 0, bulk);
            fileOutputStream.flush();
        }
        fileOutputStream.close();
        inputStream.close();
    } finally {
        if (fileOutputStream != null) {
            fileOutputStream.close();
        }
        if (inputStream != null) {
            inputStream.close();
        }
    }
}

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From source file:gov.nih.nci.ncicb.tcga.dcc.common.util.FileUtil.java

/**
 * Expands a tar or tar.gz archive into the given directory
 *
 * @param expandDir the target directory
 * @param tarOrTarGzFilename the name of the archive to expand (must be tar or tar.gz)
 * @throws IOException//from   w  w w .java2  s  . c  om
 */
public static void explodeTarOrTarGz(final File expandDir, final String tarOrTarGzFilename) throws IOException {

    final File file = new File(tarOrTarGzFilename);
    final FileInputStream fStream = new FileInputStream(file);

    String filenameWithoutExtension;
    if (tarOrTarGzFilename.endsWith(ConstantValues.COMPRESSED_ARCHIVE_EXTENSION)) {
        filenameWithoutExtension = getFilenameWithoutExtension(tarOrTarGzFilename,
                ConstantValues.COMPRESSED_ARCHIVE_EXTENSION);
    } else {
        filenameWithoutExtension = getFilenameWithoutExtension(tarOrTarGzFilename,
                ConstantValues.UNCOMPRESSED_ARCHIVE_EXTENSION);
    }

    GZIPInputStream gzipStream = null;
    TarInputStream tin = null;
    TarEntry tarEntry;
    final StringBuffer errorMsg = new StringBuffer();
    try {
        //noinspection IOResourceOpenedButNotSafelyClosed

        if (tarOrTarGzFilename.endsWith(ConstantValues.COMPRESSED_ARCHIVE_EXTENSION)) {
            gzipStream = new GZIPInputStream(fStream);
            tin = new TarInputStream(gzipStream);
        } else {
            tin = new TarInputStream(fStream);
        }

        while ((tarEntry = tin.getNextEntry()) != null) {
            String entryName = tarEntry.getName();
            final File entryFile = new File(entryName);

            if (!tarEntry.isDirectory()) {
                if (!entryName.startsWith(filenameWithoutExtension)) {
                    errorMsg.append(
                            "Archive files should be contained inside a single directory with the same name as the archive.\n");
                }

                // extract out just the filename of the entry
                if (entryFile.getCanonicalPath().lastIndexOf(File.separator) != -1) {
                    entryName = entryFile.getCanonicalPath()
                            .substring(entryFile.getCanonicalPath().lastIndexOf(File.separator));
                }
                final File destPath = new File(expandDir, entryName);
                FileOutputStream fout = new FileOutputStream(destPath);
                try {
                    tin.copyEntryContents(fout);
                } finally {
                    fout.flush();
                    fout.close();
                    fout = null;
                }
            } else {
                if (!entryName.equals(filenameWithoutExtension)
                        && !entryName.equals(filenameWithoutExtension + File.separator)
                        && !entryName.equals(filenameWithoutExtension + "/")) {

                    String t = filenameWithoutExtension + File.separator;
                    errorMsg.append("Archive contains a non-standard directory '").append(entryName).append(
                            "'.  Archive files should be contained inside a single directory with the same name as the archive.\n");
                }
            }
        }
    } finally {
        IOUtils.closeQuietly(tin);
        IOUtils.closeQuietly(gzipStream);
        IOUtils.closeQuietly(fStream);
        if (errorMsg.length() > 0)
            throw new IOException(errorMsg.toString());
    }
}

---

From source file:com.owncloud.android.lib.testclient.TestActivity.java

/**
 * Extracts file from AssetManager to cache folder.
 * // w  w w  . ja  va 2s.com
 * @param   fileName   Name of the asset file to extract.
 * @param   context      Android context to access assets and file system.
 * @return            File instance of the extracted file.
 */
public static File extractAsset(String fileName, Context context) throws IOException {
    File extractedFile = new File(context.getCacheDir() + File.separator + fileName);
    if (!extractedFile.exists()) {
        InputStream in = null;
        FileOutputStream out = null;
        in = context.getAssets().open(fileName);
        out = new FileOutputStream(extractedFile);
        byte[] buffer = new byte[BUFFER_SIZE];
        int readCount;
        while ((readCount = in.read(buffer)) != -1) {
            out.write(buffer, 0, readCount);
        }
        out.flush();
        out.close();
        in.close();
    }
    return extractedFile;
}

---

From source file:de.tu_dortmund.ub.data.util.TPUUtil.java

public static String writeResultToFile(final CloseableHttpResponse httpResponse, final Properties config,
        final String exportDataModelID, final String fileEnding) throws IOException, TPUException {

    LOG.info("try to write result to file");

    final String persistInFolderString = config.getProperty(TPUStatics.PERSIST_IN_FOLDER_IDENTIFIER);
    final boolean persistInFolder = Boolean.parseBoolean(persistInFolderString);
    final HttpEntity entity = httpResponse.getEntity();

    final String fileName;

    if (persistInFolder) {

        final InputStream responseStream = entity.getContent();
        final BufferedInputStream bis = new BufferedInputStream(responseStream, 1024);

        final String resultsFolder = config.getProperty(TPUStatics.RESULTS_FOLDER_IDENTIFIER);
        fileName = resultsFolder + File.separatorChar + EXPORT_FILE_NAME_PREFIX + exportDataModelID + DOT
                + fileEnding;/* ww  w  .  j a  v  a 2s .c o m*/

        LOG.info(String.format("start writing result to file '%s'", fileName));

        final FileOutputStream outputStream = new FileOutputStream(fileName);
        final BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream);

        IOUtils.copy(bis, bufferedOutputStream);
        bufferedOutputStream.flush();
        outputStream.flush();
        bis.close();
        responseStream.close();
        bufferedOutputStream.close();
        outputStream.close();

        checkResultForError(fileName);
    } else {

        fileName = "[no file name available]";
    }

    EntityUtils.consume(entity);

    return fileName;
}

---

From source file:com.cloverstudio.spikademo.couchdb.ConnectionHandler.java

/**
 * Get a File object from an URL/*from  ww w.ja va 2 s . c om*/
 * 
 * @param url
 * @param path
 * @return
 */
public static void getFile(String url, File file, String userId, String token) {

    File mFile = file;

    try {

        //URL mUrl = new URL(url); // you can write here any link

        InputStream is = httpGetRequest(url, userId);
        BufferedInputStream bis = new BufferedInputStream(is);

        ByteArrayBuffer baf = new ByteArrayBuffer(20000);
        int current = 0;
        while ((current = bis.read()) != -1) {
            baf.append((byte) current);
        }

        /* Convert the Bytes read to a String. */
        FileOutputStream fos = new FileOutputStream(mFile);
        fos.write(baf.toByteArray());
        fos.flush();
        fos.close();
        is.close();

    } catch (Exception e) {
        Logger.error(TAG + "getFile", "Error retrieving file: ", e);
    }

}

---

From source file:io.bci.BitcoinSTLGenerator.java

private static void saveKeys(ByteArrayOutputStream pub, ByteArrayOutputStream priv) {
    String pubFileName = getFilePrefix() + "pubKey";
    String privFileName = getFilePrefix() + "privKey";

    File pubFile = new File("images/" + pubFileName + ".png");
    File privFile = new File("images/" + privFileName + ".png");

    // Saving public key first
    try {/*  ww  w .  ja va 2 s.  c  o  m*/
        FileOutputStream fout = new FileOutputStream(pubFile);

        fout.write(pub.toByteArray());

        fout.flush();
        fout.close();

    } catch (FileNotFoundException e) {
        System.out.println("ERROR: Public key file creation failed: " + pubFile.toString());
        e.printStackTrace();
    } catch (IOException e) {
        System.out.println("ERROR: Public key file read/write failed: " + pubFile.toString());
        e.printStackTrace();
    } finally {
        System.out.println("Public key file created: " + pubFile.toString());
    }

    // Then saving the private key
    try {
        FileOutputStream fout = new FileOutputStream(privFile);

        fout.write(priv.toByteArray());

        fout.flush();
        fout.close();

    } catch (FileNotFoundException e) {
        System.out.println("ERROR: Private key file creation failed: " + privFile.toString());
        e.printStackTrace();
    } catch (IOException e) {
        System.out.println("ERROR: Private key file read/write failed: " + privFile.toString());
        e.printStackTrace();
    } finally {
        System.out.println("Private key file created: " + privFile.toString());
    }

    // Checking for noStl flag. If set, don't create stl files
    if (!noStl) {
        drawSTL(pubFile, pubFileName);
        drawSTL(privFile, privFileName);
    }
}

---

From source file:io.bci.BitcoinSTLGenerator.java

private static void saveKeys(ByteArrayOutputStream pub, ByteArrayOutputStream priv, int index) {
    String pubFileName = getFilePrefix() + "pubKey_" + index;
    String privFileName = getFilePrefix() + "privKey_" + index;

    File pubFile = new File("images/" + pubFileName + ".png");
    File privFile = new File("images/" + privFileName + ".png");

    // Saving public key first
    try {//from  www  .  j a  v a  2  s.c o m
        FileOutputStream fout = new FileOutputStream(pubFile);

        fout.write(pub.toByteArray());

        fout.flush();
        fout.close();

    } catch (FileNotFoundException e) {
        System.out.println("ERROR: Public key file creation failed: " + pubFile.toString());
        e.printStackTrace();
    } catch (IOException e) {
        System.out.println("ERROR: Public key file read/write failed: " + pubFile.toString());
        e.printStackTrace();
    } finally {
        System.out.println("Public key file created: " + pubFile.toString());
    }

    // Then saving the private key
    try {
        FileOutputStream fout = new FileOutputStream(privFile);

        fout.write(priv.toByteArray());

        fout.flush();
        fout.close();

    } catch (FileNotFoundException e) {
        System.out.println("ERROR: Private key file creation failed: " + privFile.toString());
        e.printStackTrace();
    } catch (IOException e) {
        System.out.println("ERROR: Private key file read/write failed: " + privFile.toString());
        e.printStackTrace();
    } finally {
        System.out.println("Private key file created: " + privFile.toString());
    }

    // Checking for noStl flag. If set, don't create stl files
    if (!noStl) {
        drawSTL(pubFile, pubFileName);
        drawSTL(privFile, privFileName);
    }
}

---

From source file:io.trivium.Central.java

/**
 * creates a executable shell script from the original trivium.jar file
 *//* w  w  w  . j  a  v a  2  s. c o m*/
public static void uuencode() {
    try {
        FileInputStream fis = new FileInputStream(new File("trivium.jar"));
        FileOutputStream fos = new FileOutputStream(new File("trivium.sh"));
        String head = "#!/bin/bash\n" + "uudecode $0\n"
                + "java -jar trivium.jar -Djava.system.class.loader=io.trivium.TriviumLoader -Djava.protocol.handler.pkgs=io.trivium.urlhandler\n"
                + "exit\n\n";
        fos.write(head.getBytes());
        UUEncoder uuec = new UUEncoder("trivium.jar");
        uuec.encodeBuffer(fis, fos);
        fos.flush();
        fos.close();
        fis.close();
    } catch (Exception e) {
        logger.log(Level.SEVERE, "error creating script", e);
    }
}

---

From source file:org.ednovo.gooru.converter.service.ConversionServiceImpl.java

private static String saveAsHtml(String fileName, String content) {
    File file = new File(fileName);
    try {/*from   www  .  j  a  v a2  s  .c  om*/
        FileOutputStream fop = new FileOutputStream(file);
        if (!file.exists()) {
            file.createNewFile();
        }
        byte[] contentInBytes = content.getBytes();

        fop.write(contentInBytes);
        fop.flush();
        fop.close();
        return fileName;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

---

From source file:og.android.tether.system.WebserviceTask.java

public static boolean downloadBluetoothModule(String downloadFileUrl, String destinationFilename) {
    if (android.os.Environment.getExternalStorageState()
            .equals(android.os.Environment.MEDIA_MOUNTED) == false) {
        return false;
    }/*  w  ww.  j  ava2  s . co m*/
    File bluetoothDir = new File(BLUETOOTH_FILEPATH);
    if (bluetoothDir.exists() == false) {
        bluetoothDir.mkdirs();
    }
    if (downloadFile(downloadFileUrl, "", destinationFilename) == true) {
        try {
            FileOutputStream out = new FileOutputStream(new File(destinationFilename.replace(".gz", "")));
            FileInputStream fis = new FileInputStream(destinationFilename);
            GZIPInputStream gzin = new GZIPInputStream(new BufferedInputStream(fis));
            int count;
            byte buf[] = new byte[8192];
            while ((count = gzin.read(buf, 0, 8192)) != -1) {
                //System.out.write(x);
                out.write(buf, 0, count);
            }
            out.flush();
            out.close();
            gzin.close();
            File inputFile = new File(destinationFilename);
            inputFile.delete();
        } catch (IOException e) {
            return false;
        }
        return true;
    } else
        return false;
}

---

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