Example usage for java.io FileOutputStream write

Introduction

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

Prototype

public void write(byte b[], int off, int len) throws IOException 

Source Link

Document

Writes len bytes from the specified byte array starting at offset off to this file output stream.

Usage

From source file:eu.stratosphere.yarn.Utils.java

public static void copyJarContents(String prefix, String pathToJar) throws IOException {
    LOG.info("Copying jar (location: " + pathToJar + ") to prefix " + prefix);

    JarFile jar = null;/*w w w  .java 2  s. c o  m*/
    jar = new JarFile(pathToJar);
    Enumeration<JarEntry> enumr = jar.entries();
    byte[] bytes = new byte[1024];
    while (enumr.hasMoreElements()) {
        JarEntry entry = enumr.nextElement();
        if (entry.getName().startsWith(prefix)) {
            if (entry.isDirectory()) {
                File cr = new File(entry.getName());
                cr.mkdirs();
                continue;
            }
            InputStream inStream = jar.getInputStream(entry);
            File outFile = new File(entry.getName());
            if (outFile.exists()) {
                throw new RuntimeException("File unexpectedly exists");
            }
            FileOutputStream outputStream = new FileOutputStream(outFile);
            int read = 0;
            while ((read = inStream.read(bytes)) != -1) {
                outputStream.write(bytes, 0, read);
            }
            inStream.close();
            outputStream.close();
        }
    }
    jar.close();
}

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From source file:net.sf.jasperreports.samples.wizards.SampleNewWizard.java

public static void unpackArchive(File theFile, File targetDir, IProgressMonitor monitor, Set<String> cpaths,
        Set<String> lpaths) {
    byte[] buffer = new byte[1024];
    ZipInputStream zis = null;//w  w w. j a v  a  2s .c om
    try {
        zis = new ZipInputStream(new FileInputStream(theFile));

        ZipEntry ze = zis.getNextEntry();
        while (ze != null) {
            File file = new File(targetDir, File.separator + ze.getName());

            new File(file.getParent()).mkdirs();
            String fname = file.getName();
            if (ze.isDirectory()) {
                if (fname.equals("src"))
                    cpaths.add(ze.getName());
            } else {
                FileOutputStream fos = new FileOutputStream(file);
                int len;
                while ((len = zis.read(buffer)) > 0)
                    fos.write(buffer, 0, len);

                fos.close();
            }
            if (file.getParentFile().getName().equals("lib")
                    && (fname.endsWith(".jar") || fname.endsWith(".zip")))
                lpaths.add(ze.getName());
            if (monitor.isCanceled()) {
                zis.close();
                return;
            }
            ze = zis.getNextEntry();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            zis.closeEntry();
            zis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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From source file:localization.split.java

public static Vector<String> readzipfile(String filepath) {
    Vector<String> v = new Vector<String>();
    byte[] buffer = new byte[1024];
    String outputFolder = filepath.substring(0, filepath.lastIndexOf("."));
    System.out.println(outputFolder);
    try {/* ww w .  j  a  v a  2 s . c o  m*/
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }
        ZipInputStream zis = new ZipInputStream(new FileInputStream(filepath));
        ZipEntry ze = zis.getNextEntry();
        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(outputFolder + "\\" + fileName);
            v.addElement(newFile.getAbsolutePath());
            FileOutputStream fos = new FileOutputStream(newFile);
            int len;
            while ((len = zis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }
            fos.close();
            ze = zis.getNextEntry();
        }
        zis.closeEntry();
        zis.close();
    } catch (Exception e) {

    }
    return v;
}

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From source file:eu.optimis.ics.core.util.PropertiesReader.java

/**
 * Creates a default properties file if it doesn't exist
 * @param fileObject    properties file//  w  w w.j a  va 2s.com
 * @throws Exception  Unexcepted error occurs
 */
private static void createDefaultConfigFile(File fileObject) throws Exception {

    log.info("ics.core.util.PropertiesReader.createDefaultConfigFile(): File " + fileObject.getAbsolutePath()
            + " doesn't exist. Creating one with default values...");

    // Create parent directories.
    log.info("ics.core.util.PropertiesReader.createDefaultConfigFile(): Creating parent directories.");
    new File(fileObject.getParent()).mkdirs();

    // Create an empty file to copy the contents of the default file.
    log.info("ics.core.util.PropertiesReader.createDefaultConfigFile(): Creating empty file.");
    new File(fileObject.getAbsolutePath()).createNewFile();

    // Copy file.
    log.info("ics.core.util.PropertiesReader.createDefaultConfigFile(): Copying file " + fileObject.getName());
    InputStream streamIn = PropertiesReader.class.getResourceAsStream("/" + fileObject.getName());
    FileOutputStream streamOut = new FileOutputStream(fileObject.getAbsolutePath());
    byte[] buf = new byte[8192];
    while (true) {
        int length = streamIn.read(buf);
        if (length < 0) {
            break;
        }
        streamOut.write(buf, 0, length);
    }

    // Close streams after copying.
    try {
        streamIn.close();
    } catch (IOException ignore) {
        log.error("ics.core.util.PropertiesReader.createDefaultConfigFile(): Couldn't close input stream");
    }

    try {
        streamOut.close();
    } catch (IOException ignore) {
        log.error(
                "ics.core.util.PropertiesReader.createDefaultConfigFile(): Couldn't close file output stream");
    }
}

---

From source file:Main.java

public static boolean copyFile(File from, File to, byte[] buf) {
    if (buf == null)
        buf = new byte[BUFFER_SIZE];

    ///*from  w ww . j av a 2s .c om*/
    // System.out.println("Copy file ("+from+","+to+")");
    FileInputStream from_s = null;
    FileOutputStream to_s = null;

    try {
        from_s = new FileInputStream(from);
        to_s = new FileOutputStream(to);

        for (int bytesRead = from_s.read(buf); bytesRead != -1; bytesRead = from_s.read(buf))
            to_s.write(buf, 0, bytesRead);

        from_s.close();
        from_s = null;

        to_s.getFD().sync(); // RESOLVE: sync or no sync?
        to_s.close();
        to_s = null;
    } catch (IOException ioe) {
        return false;
    } finally {
        if (from_s != null) {
            try {
                from_s.close();
            } catch (IOException ioe) {
            }
        }
        if (to_s != null) {
            try {
                to_s.close();
            } catch (IOException ioe) {
            }
        }
    }

    return true;
}

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From source file:at.uni_salzburg.cs.ckgroup.pilot.sensor.OpenStreetMapTileCache.java

public static void downloadFile(String url, File file) throws IOException {

    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet(url);
    HttpResponse response;/*from w ww  .j a va 2 s  .co m*/

    response = httpclient.execute(httpget);
    FileOutputStream outStream = new FileOutputStream(file);

    HttpEntity entity = response.getEntity();
    if (entity != null) {
        InputStream inStream = entity.getContent();
        int l;
        byte[] tmp = new byte[8096];
        while ((l = inStream.read(tmp)) != -1) {
            outStream.write(tmp, 0, l);
        }
    }
}

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From source file:com.example.prathik1.drfarm.OCRRestAPI.java

private static void DownloadConvertedFile(String outputFileUrl) throws IOException {
        URL downloadUrl = new URL(outputFileUrl);
        HttpURLConnection downloadConnection = (HttpURLConnection) downloadUrl.openConnection();

        if (downloadConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {

            InputStream inputStream = downloadConnection.getInputStream();

            // opens an output stream to save into file
            FileOutputStream outputStream = new FileOutputStream("C:\\converted_file.doc");

            int bytesRead = -1;
            byte[] buffer = new byte[4096];
            while ((bytesRead = inputStream.read(buffer)) != -1) {
                outputStream.write(buffer, 0, bytesRead);
            }// w w  w  . j a v a  2s  .c o  m

            outputStream.close();
            inputStream.close();
        }

        downloadConnection.disconnect();
    }

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From source file:de.flapdoodle.embed.process.io.file.Files.java

public static void write(InputStream in, File output) throws IOException {
    FileOutputStream out = new FileOutputStream(output);

    try {/*from   ww  w .ja va  2 s .  c o m*/
        byte[] buf = new byte[BYTE_BUFFER_LENGTH];
        int read;
        while ((read = in.read(buf, 0, buf.length)) != -1) {
            out.write(buf, 0, read);
        }
    } finally {
        out.close();
    }
}

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From source file:com.amazonaws.utilities.Util.java

/**
 * Copies the data from the passed in Uri, to a new file for use with the
 * Transfer Service/*from   ww w .j av  a 2s.c  o m*/
 * 
 * @param context
 * @param uri
 * @return
 * @throws IOException
 */
public static File copyContentUriToFile(Context context, Uri uri) throws IOException {
    InputStream is = context.getContentResolver().openInputStream(uri);
    File copiedData = new File(context.getDir("SampleImagesDir", Context.MODE_PRIVATE),
            UUID.randomUUID().toString());
    copiedData.createNewFile();

    FileOutputStream fos = new FileOutputStream(copiedData);
    byte[] buf = new byte[2046];
    int read = -1;
    while ((read = is.read(buf)) != -1) {
        fos.write(buf, 0, read);
    }

    fos.flush();
    fos.close();

    return copiedData;
}

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From source file:fr.ece.epp.tools.Utils.java

public static void copy(File resFile, File objFolderFile) throws IOException {
    if (!resFile.exists()) {
        return;/*from   ww w .  j av  a  2  s  . c  o m*/
    }
    if (!objFolderFile.exists()) {
        objFolderFile.mkdirs();
    }
    if (resFile.isFile()) {
        File objFile = new File(objFolderFile.getPath() + File.separator + resFile.getName());
        InputStream ins = new FileInputStream(resFile);
        FileOutputStream outs = new FileOutputStream(objFile);
        byte[] buffer = new byte[1024 * 512];
        int length;
        while ((length = ins.read(buffer)) != -1) {
            outs.write(buffer, 0, length);
        }
        ins.close();
        outs.flush();
        outs.close();
    } else {
        String objFolder = objFolderFile.getPath() + File.separator + resFile.getName();
        File _objFolderFile = new File(objFolder);
        _objFolderFile.mkdirs();
        for (File sf : resFile.listFiles()) {
            copy(sf, new File(objFolder));
        }
    }
}

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