Example usage for java.io OutputStream flush

List of usage examples for java.io OutputStream flush

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Introduction

In this page you can find the example usage for java.io OutputStream 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:Main.java

public static void copy(InputStream in, OutputStream out) throws IOException {
    if (!(in instanceof BufferedInputStream)) {
        in = new BufferedInputStream(in);
    }/*from w w  w.  java2s . c  o m*/
    if (!(out instanceof BufferedOutputStream)) {
        out = new BufferedOutputStream(out);
    }
    int len = 0;
    byte[] buffer = new byte[1024];
    while ((len = in.read(buffer)) != -1) {
        out.write(buffer, 0, len);
    }
    out.flush();
}

From source file:com.fizzed.blaze.util.Streamables.java

static private void copy(InputStream input, OutputStream output, int bufferSize) throws IOException {
    int read;/*from w  w  w  .  j  a va  2  s.  com*/
    byte[] buffer = new byte[bufferSize];
    while ((read = input.read(buffer)) > -1) {
        output.write(buffer, 0, read);
    }
    output.flush();
}

From source file:com.photon.phresco.util.FileUtil.java

public static File writeFileFromInputStream(InputStream inputStream, String tempZip) throws PhrescoException {
    File tempZipFile = new File(tempZip);
    try {//from   ww  w. ja  v  a2  s  . c om
        if (!tempZipFile.exists()) {
            tempZipFile.createNewFile();
        }
        OutputStream out = new FileOutputStream(new File(tempZip));
        int read = 0;
        byte[] bytes = new byte[BUFFER_SIZE];
        while ((read = inputStream.read(bytes)) != -1) {
            out.write(bytes, 0, read);
        }
        inputStream.close();
        out.flush();
        out.close();
    } catch (Exception e) {
        throw new PhrescoException(e);
    }

    return tempZipFile;
}

From source file:Main.java

public static void copyFile(File from, File to) {
    if (null == from || !from.exists()) {
        return;// w w  w .  j av  a  2s.co  m
    }
    if (null == to) {
        return;
    }

    InputStream is = null;
    OutputStream os = null;
    try {
        is = new FileInputStream(from);
        if (!to.exists()) {
            to.createNewFile();
        }
        os = new FileOutputStream(to);

        byte[] buffer = new byte[1024];
        int len = 0;
        while (-1 != (len = is.read(buffer))) {
            os.write(buffer, 0, len);
        }
        os.flush();
    } catch (Exception e) {
    } finally {
        closeIO(is, os);
    }

}

From source file:com.hunantv.fw.utils.StreamUtils.java

/**
 * Copy the contents of the given InputStream to the given OutputStream.
 * Leaves both streams open when done./*from  www  .j  a v  a 2  s  .  c  o  m*/
 * @param in the InputStream to copy from
 * @param out the OutputStream to copy to
 * @return the number of bytes copied
 * @throws IOException in case of I/O errors
 */
public static int copy(InputStream in, OutputStream out) throws IOException {
    int byteCount = 0;
    byte[] buffer = new byte[BUFFER_SIZE];
    int bytesRead = -1;
    while ((bytesRead = in.read(buffer)) != -1) {
        out.write(buffer, 0, bytesRead);
        byteCount += bytesRead;
    }
    out.flush();
    return byteCount;
}

From source file:com.buglabs.dragonfly.util.WSHelper.java

/**
 * @param url/*from w w w. j a va  2s .  c o  m*/
 * @param inputStream
 * @return
 * @throws IOException
 */
protected static String post(URL url, InputStream inputStream) throws IOException {
    URLConnection connection = url.openConnection();
    connection.setDoInput(true);
    connection.setDoOutput(true);

    OutputStream stream = connection.getOutputStream();
    writeTo(stream, inputStream);
    stream.flush();
    stream.close();

    InputStream is = connection.getInputStream();
    BufferedReader rd = new BufferedReader(new InputStreamReader(is));
    String line, resp = new String("");
    while ((line = rd.readLine()) != null) {
        resp = resp + line + "\n";
    }
    rd.close();
    is.close();

    return resp;
}

From source file:com.iyonger.apm.web.util.FileDownloadUtils.java

/**
 * Download the given file to the given {@link HttpServletResponse}.
 *
 * @param response {@link HttpServletResponse}
 * @param file     file path//from w w w .j a v a2  s.c o  m
 * @return true if succeeded
 */
public static boolean downloadFile(HttpServletResponse response, File file) {
    if (file == null || !file.exists()) {
        return false;
    }
    boolean result = true;
    response.reset();
    response.addHeader("Content-Disposition", "attachment;filename=" + file.getName());
    response.setContentType("application/octet-stream");
    response.addHeader("Content-Length", "" + file.length());
    InputStream fis = null;
    byte[] buffer = new byte[FILE_DOWNLOAD_BUFFER_SIZE];
    OutputStream toClient = null;
    try {
        fis = new BufferedInputStream(new FileInputStream(file));
        toClient = new BufferedOutputStream(response.getOutputStream());
        int readLength;
        while (((readLength = fis.read(buffer)) != -1)) {
            toClient.write(buffer, 0, readLength);
        }
        toClient.flush();
    } catch (FileNotFoundException e) {
        LOGGER.error("file not found:" + file.getAbsolutePath(), e);
        result = false;
    } catch (IOException e) {
        LOGGER.error("read file error:" + file.getAbsolutePath(), e);
        result = false;
    } finally {
        IOUtils.closeQuietly(fis);
        IOUtils.closeQuietly(toClient);
    }
    return result;
}

From source file:Main.java

public static boolean copyFile(File src, File dst) {
    InputStream is = null;/*from  w w  w .  j  a  v a  2  s  .  c  o m*/
    OutputStream os = null;
    byte[] buffer = new byte[1024];

    try {
        is = new FileInputStream(src);
        os = new FileOutputStream(dst);

        while (true) {
            int len = is.read(buffer);
            if (len <= 0) {
                break;
            }

            os.write(buffer, 0, len);
        }

        os.flush();
        return true;

    } catch (IOException e) {
        e.printStackTrace();
        return false;
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                // ignore
            }
        }
        if (os != null) {
            try {
                os.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }

}

From source file:com.mtt.myapp.common.util.FileDownloadUtil.java

/**
 * Provide file download from the given file path.
 * @param response {@link javax.servlet.http.HttpServletResponse}
 * @param desFile file path/* w  w w.  j av  a 2s .  co  m*/
 * @return true if succeeded
 */
public static boolean downloadFile(HttpServletResponse response, File desFile) {
    if (desFile == null || !desFile.exists()) {
        return false;
    }
    boolean result = true;
    response.reset();
    response.addHeader("Content-Disposition", "attachment;filename=" + desFile.getName());
    response.setContentType("application/octet-stream");
    response.addHeader("Content-Length", "" + desFile.length());
    InputStream fis = null;
    byte[] buffer = new byte[FILE_DOWNLOAD_BUFFER_SIZE];
    OutputStream toClient = null;
    try {
        fis = new BufferedInputStream(new FileInputStream(desFile));
        toClient = new BufferedOutputStream(response.getOutputStream());
        int readLength;
        while (((readLength = fis.read(buffer)) != -1)) {
            toClient.write(buffer, 0, readLength);
        }
        toClient.flush();
    } catch (FileNotFoundException e) {
        LOGGER.error("file not found:" + desFile.getAbsolutePath(), e);
        result = false;
    } catch (IOException e) {
        LOGGER.error("read file error:" + desFile.getAbsolutePath(), e);
        result = false;
    } finally {
        IOUtils.closeQuietly(fis);
        IOUtils.closeQuietly(toClient);
    }
    return result;
}

From source file:com.textocat.textokit.commons.io.ProcessIOUtils.java

/**
 * @param proc process which input stream will receive bytes from the
 *             argument input stream// w ww. j  a  va  2  s . c o  m
 * @param in   input stream. Note that it is closed at the end.
 */
public static void feedProcessInput(Process proc, final InputStream in, final boolean closeStdIn)
        throws IOException {
    final OutputStream procStdIn = proc.getOutputStream();
    final List<Exception> exceptions = Lists.newLinkedList();
    Thread writerThread = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                IOUtils.copy(in, procStdIn);
                if (closeStdIn) {
                    procStdIn.flush();
                    closeQuietly(procStdIn);
                }
            } catch (Exception e) {
                exceptions.add(e);
            } finally {
                closeQuietly(in);
            }
        }
    });
    writerThread.start();
    try {
        writerThread.join();
    } catch (InterruptedException e) {
        // do nothing, just set flag
        Thread.currentThread().interrupt();
    }
    if (!exceptions.isEmpty()) {
        Exception ex = exceptions.get(0);
        throw ex instanceof IOException ? (IOException) ex
                : new IOException("Unexpected exception in writing thread", ex);
    }
}