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:Main.java

/**
 * Reads a file that is embedded in our application and writes it to the device storage
 * @param context/*from ww w.j  a v  a2 s . c  om*/
 * @param file
 * @param assetFileDescriptor
 */
private static void saveFileToDevice(Context context, File file, AssetFileDescriptor assetFileDescriptor) {
    // The output stream is used to write the new file to the device storage
    FileOutputStream outputStream = null;
    // The input stream is used for reading the file that is embedded in our application
    FileInputStream inputStream = null;
    try {
        byte[] buffer = new byte[1024];
        // Create the input stream
        inputStream = (assetFileDescriptor != null) ? assetFileDescriptor.createInputStream() : null;
        // Create the output stream
        outputStream = new FileOutputStream(file, false);
        // Read the file into buffer
        int i = (inputStream != null) ? inputStream.read(buffer) : 0;
        // Continue writing and reading the file until we reach the end
        while (i != -1) {
            outputStream.write(buffer, 0, i);
            i = (inputStream != null) ? inputStream.read(buffer) : 0;
        }

        outputStream.flush();
    } catch (IOException io) {
        // Display a message to the user
        Toast toast = Toast.makeText(context, "Could not save the file", Toast.LENGTH_SHORT);
        toast.show();
    } finally {
        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException ex) {
                // We should really never get this far, but we might consider adding a
                // warning/log entry here...
            }
        }
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException ex) {
                // We should really never get this far, but we might consider adding a
                // warning/log entry here...
            }
        }
    }
}

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From source file:com.kactech.otj.Utils.java

public static void writeDirs(File file, byte[] content) throws IOException {
    file.getParentFile().mkdirs();/*from w  ww.j  a va  2s . com*/
    if (!file.getParentFile().exists())
        throw new IllegalStateException("parent directory not exist");
    FileOutputStream fos = new FileOutputStream(file);
    fos.write(content);
    fos.flush();
    fos.close();
}

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From source file:com.baobao121.baby.common.SimpleUploaderServlet.java

public static void changeDimension(InputStream bis, FileOutputStream desc, int w, int h) throws IOException {
    Image src = javax.imageio.ImageIO.read(bis); // Image
    int width = src.getWidth(null); // ?
    int height = src.getHeight(null); // ?
    if (width <= w && height <= h) {
        BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        tag.getGraphics().drawImage(src, 0, 0, width, height, null); // ??
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(desc);
        encoder.encode(tag);/*  w  ww .  j a v  a 2s .c  om*/
        desc.flush();
        desc.close();
        bis.close();
    } else {
        if (width != height) {
            if (w * height < h * width) {
                h = (int) (height * w / width);
            } else {
                w = (int) (width * h / height);
            }
        }
        BufferedImage tag = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        tag.getGraphics().drawImage(src, 0, 0, w, h, null); // ??
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(desc);
        encoder.encode(tag);
        desc.flush();
        desc.close();
        bis.close();
    } // JPEG?
}

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From source file:eu.planets_project.tb.impl.data.util.DataHandlerImpl.java

/**
 * @param inputStream// ww w .j ava2 s. c om
 * @param tmpFile
 * @throws IOException 
 */
public static void storeStreamInFile(InputStream in, File f) throws IOException {
    f.createNewFile();
    FileOutputStream fos = new FileOutputStream(f);
    byte[] b = new byte[1024];
    int read_size;
    while ((read_size = in.read(b)) != -1) {
        fos.write(b, 0, read_size);
        fos.flush();
    }
    fos.close();
}

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From source file:com.ibuildapp.romanblack.CataloguePlugin.utils.Utils.java

/**
 * download file url and save it//from w  ww . j a  v a2s.c  o  m
 *
 * @param url
 */
public static String downloadFile(String url) {
    int BYTE_ARRAY_SIZE = 1024;
    int CONNECTION_TIMEOUT = 30000;
    int READ_TIMEOUT = 30000;

    // downloading cover image and saving it into file
    try {
        URL imageUrl = new URL(URLDecoder.decode(url));
        URLConnection conn = imageUrl.openConnection();
        conn.setConnectTimeout(CONNECTION_TIMEOUT);
        conn.setReadTimeout(READ_TIMEOUT);
        BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());

        File resFile = new File(
                Statics.moduleCachePath + File.separator + com.appbuilder.sdk.android.Utils.md5(url));
        if (!resFile.exists()) {
            resFile.createNewFile();
        }

        FileOutputStream fos = new FileOutputStream(resFile);
        int current = 0;
        byte[] buf = new byte[BYTE_ARRAY_SIZE];
        Arrays.fill(buf, (byte) 0);
        while ((current = bis.read(buf, 0, BYTE_ARRAY_SIZE)) != -1) {
            fos.write(buf, 0, current);
            Arrays.fill(buf, (byte) 0);
        }

        bis.close();
        fos.flush();
        fos.close();
        Log.d("", "");
        return resFile.getAbsolutePath();
    } catch (SocketTimeoutException e) {
        return null;
    } catch (IllegalArgumentException e) {
        return null;
    } catch (Exception e) {
        return null;
    }
}

---

From source file:eu.geopaparazzi.library.network.NetworkUtilities.java

/**
 * Sends an HTTP GET request to a url/*from  w w  w.  j a v  a  2  s  .co  m*/
 *
 * @param urlStr - The URL of the server. (Example: " http://www.yahoo.com/search")
 * @param file the output file. If it is a folder, it tries to get the file name from the header.
 * @param requestParameters - all the request parameters (Example: "param1=val1&param2=val2"). 
 *           Note: This method will add the question mark (?) to the request - 
 *           DO NOT add it yourself
 * @param user
 * @param password
 * @return the file written. 
 * @throws Exception 
 */
public static File sendGetRequest4File(String urlStr, File file, String requestParameters, String user,
        String password) throws Exception {
    if (requestParameters != null && requestParameters.length() > 0) {
        urlStr += "?" + requestParameters;
    }
    HttpURLConnection conn = makeNewConnection(urlStr);
    conn.setRequestMethod("GET");
    // conn.setDoOutput(true);
    conn.setDoInput(true);
    // conn.setChunkedStreamingMode(0);
    conn.setUseCaches(false);

    if (user != null && password != null) {
        conn.setRequestProperty("Authorization", getB64Auth(user, password));
    }
    conn.connect();

    if (file.isDirectory()) {
        // try to get the header
        String headerField = conn.getHeaderField("Content-Disposition");
        String fileName = null;
        if (headerField != null) {
            String[] split = headerField.split(";");
            for (String string : split) {
                String pattern = "filename=";
                if (string.toLowerCase().startsWith(pattern)) {
                    fileName = string.replaceFirst(pattern, "");
                    break;
                }
            }
        }
        if (fileName == null) {
            // give a name
            fileName = "FILE_" + LibraryConstants.TIMESTAMPFORMATTER.format(new Date());
        }
        file = new File(file, fileName);
    }

    InputStream in = null;
    FileOutputStream out = null;
    try {
        in = conn.getInputStream();
        out = new FileOutputStream(file);

        byte[] buffer = new byte[(int) maxBufferSize];
        int bytesRead = in.read(buffer, 0, (int) maxBufferSize);
        while (bytesRead > 0) {
            out.write(buffer, 0, bytesRead);
            bytesRead = in.read(buffer, 0, (int) maxBufferSize);
        }
        out.flush();

    } finally {
        if (in != null)
            in.close();
        if (out != null)
            out.close();
    }
    return file;
}

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From source file:com.baidu.rigel.biplatform.tesseract.util.FileUtils.java

/**
 * content//  w  w  w.jav  a  2s .  c  o m
 * 
 * @param file
 *            ?
 * @param content
 *            
 * @param code
 *            ??
 */
public static boolean writeFile(File file, byte[] content) {
    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_BEGIN, "writeFile",
            "[file:" + file + "][content:" + content + "]"));
    boolean result = false;
    if (file == null || content == null || content.length == 0) {
        LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FILEPROCESS_ERROR,
                "Can not process empty file or content: " + "[file:" + file + "][content:" + content + "]"));
        return result;
    }

    FileOutputStream fileOutputStream = null;
    try {

        fileOutputStream = new FileOutputStream(file);
        // 
        fileOutputStream.write(content);
        fileOutputStream.flush();
        result = true;
    } catch (IOException e) {
        LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FILEPROCESS_ERROR, "IOException"));
        LOGGER.error(e.getMessage(), e);
        return false;
    } finally {
        if (fileOutputStream != null) {
            try {
                fileOutputStream.close();
            } catch (IOException e) {
                LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FILEPROCESS_ERROR, "IOException"));
                LOGGER.error(e.getMessage(), e);

                return false;
            }
        }
    }

    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_END, "writeFile",
            "[file:" + file + "][content:" + content + "]"));
    return result;
}

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From source file:apim.restful.exportimport.utils.APIImportUtil.java

/**
 * This method uploads a given file to specified location
 *
 * @param uploadedInputStream input stream of the file
 * @param newFileName         name of the file to be created
 * @param storageLocation     destination of the new file
 *//*from  w ww  .j a  v a  2 s.  c om*/
public static void transferFile(InputStream uploadedInputStream, String newFileName, String storageLocation)
        throws APIManagementException {
    FileOutputStream outFileStream = null;
    try {
        outFileStream = new FileOutputStream(new File(storageLocation, newFileName));
        int read = 0;
        byte[] bytes = new byte[1024];
        while ((read = uploadedInputStream.read(bytes)) != -1) {
            outFileStream.write(bytes, 0, read);
        }
    } catch (IOException e) {
        log.error("Error in transferring files.");
        throw new APIManagementException("Error in transferring files.", e);
    } finally {
        try {
            if (outFileStream != null) {
                outFileStream.flush();
                outFileStream.close();
            }
        } catch (IOException e) {
            log.error("Error in closing output streams while transferring files.");
        }
    }
}

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From source file:com.ai.runner.center.pay.web.business.payment.util.third.unionpay.sdk.SDKUtil.java

/**
 * ?fileContent?  base64DEFLATE?<br>
 * ??<br>/*from  w  w  w.j  a v  a2s.  c  o m*/
 * @param resData<br>
 * @param encoding ?encoding<br>   
 */
public static void deCodeFileContent(Map<String, String> resData, String filePathRoot, String encoding) {
    // ?
    String fileContent = resData.get(SDKConstants.param_fileContent);
    if (null != fileContent && !"".equals(fileContent)) {
        try {
            byte[] fileArray = SecureUtil.inflater(SecureUtil.base64Decode(fileContent.getBytes(encoding)));
            String filePath = null;
            if (SDKUtil.isEmpty(resData.get("fileName"))) {
                filePath = filePathRoot + File.separator + resData.get("merId") + "_" + resData.get("batchNo")
                        + "_" + resData.get("txnTime") + ".txt";
            } else {
                filePath = filePathRoot + File.separator + resData.get("fileName");
            }
            File file = new File(filePath);
            if (file.exists()) {
                file.delete();
            }
            file.createNewFile();
            FileOutputStream out = new FileOutputStream(file);
            out.write(fileArray, 0, fileArray.length);
            out.flush();
            out.close();

        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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From source file:at.tugraz.sss.serv.SSFileU.java

public static void writeFileBytes(final FileOutputStream fileOut, final byte[] bytes, final Integer length)
        throws Exception {

    if (SSObjU.isNull(fileOut, bytes)) {
        throw new Exception("pars not okay");
    }/*from   www .j  a v a 2 s.  com*/

    try {

        fileOut.write(bytes, 0, length);
        fileOut.flush();

    } catch (Exception error) {
        throw error;
    } finally {

        if (fileOut != null) {
            fileOut.close();
        }
    }
}

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