Example usage for java.io FileOutputStream getChannel

Introduction

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

Prototype

public FileChannel getChannel() 

Source Link

Document

Returns the unique java.nio.channels.FileChannel FileChannel object associated with this file output stream.

Usage

From source file:com.recomdata.transmart.data.export.util.FileWriterUtil.java

public void writeFile(String url, File outputURLFile) {

    try {//w  w  w .  ja v a  2  s  .  c o  m
        URL celFileURL = new URL(url);
        ReadableByteChannel rbc = Channels.newChannel(celFileURL.openStream());
        FileOutputStream fos = new FileOutputStream(outputURLFile);
        fos.getChannel().transferFrom(rbc, 0, 1 << 24);
    } catch (MalformedURLException e) {
        log.info("Bad URL: " + url);
    } catch (IOException e) {
        log.info("IO Error:" + e.getMessage());
    }
}

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From source file:org.loadosophia.client.LoadosophiaAPIClient.java

protected String[] multipartPost(LinkedList<Part> parts, String URL, int expectedSC) throws IOException {
    log.debug("Request POST: " + URL);
    parts.add(new StringPart("token", token));

    PostMethod postRequest = new PostMethod(URL);
    MultipartRequestEntity multipartRequest = new MultipartRequestEntity(parts.toArray(new Part[parts.size()]),
            postRequest.getParams());//  www  .ja  va  2s.c o  m
    postRequest.setRequestEntity(multipartRequest);
    int result = httpClient.executeMethod(postRequest);
    if (result != expectedSC) {
        String fname = File.createTempFile("error_", ".html").getAbsolutePath();
        notifier.notifyAbout("Saving server error response to: " + fname);
        FileOutputStream fos = new FileOutputStream(fname);
        FileChannel resultFile = fos.getChannel();
        resultFile.write(ByteBuffer.wrap(postRequest.getResponseBody()));
        resultFile.close();
        throw new HttpException("Request returned not " + expectedSC + " status code: " + result);
    }
    byte[] bytes = postRequest.getResponseBody();
    if (bytes == null) {
        bytes = new byte[0];
    }
    String response = new String(bytes);
    return response.trim().split(";");
}

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From source file:Main.java

public Main(String localPath, String remoteURL) {
    FileOutputStream fos;
    ReadableByteChannel rbc;//from   ww w.  j  a  v a  2 s. c o  m
    URL url;
    try {
        url = new URL(remoteURL);
        rbc = new CallbackByteChannel(Channels.newChannel(url.openStream()), contentLength(url), this);
        fos = new FileOutputStream(localPath);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:wicket.protocol.http.FilePageStore.java

/**
 * @see wicket.protocol.http.SecondLevelCacheSessionStore.IPageStore#storePage(java.lang.String,
 *      wicket.Page)//from w ww .ja  v  a 2s.c o  m
 */
public void storePage(String sessionId, Page page) {
    File sessionDir = new File(workDir, sessionId);
    sessionDir.mkdirs();
    File pageFile = getPageFile(page.getNumericId(), page.getCurrentVersionNumber(), sessionDir);
    // TODO check can this be called everytime at this place? Putting should
    // be called after the rendering so it should be ok.
    page.internalDetach();
    byte[] bytes = Objects.objectToByteArray(page);
    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(pageFile);
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        fos.getChannel().write(bb);
    } catch (Exception e) {
        log.debug("Error saving page " + page.getId() + " with version " + page.getCurrentVersionNumber()
                + " for the sessionid " + sessionId + " from disc", e);
    } finally {
        try {
            if (fos != null) {
                fos.close();
            }
        } catch (IOException ex) {
            // ignore
        }
    }

}

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From source file:org.apache.solr.core.CoreContainer.java

/** Copies a src file to a dest file:
 *  used to circumvent the platform discrepancies regarding renaming files.
 *//*from   w  w w .j  a  v  a 2s  .c om*/
public static void fileCopy(File src, File dest) throws IOException {
    IOException xforward = null;
    FileInputStream fis = null;
    FileOutputStream fos = null;
    FileChannel fcin = null;
    FileChannel fcout = null;
    try {
        fis = new FileInputStream(src);
        fos = new FileOutputStream(dest);
        fcin = fis.getChannel();
        fcout = fos.getChannel();
        // do the file copy 32Mb at a time
        final int MB32 = 32 * 1024 * 1024;
        long size = fcin.size();
        long position = 0;
        while (position < size) {
            position += fcin.transferTo(position, MB32, fcout);
        }
    } catch (IOException xio) {
        xforward = xio;
    } finally {
        if (fis != null)
            try {
                fis.close();
                fis = null;
            } catch (IOException xio) {
            }
        if (fos != null)
            try {
                fos.close();
                fos = null;
            } catch (IOException xio) {
            }
        if (fcin != null && fcin.isOpen())
            try {
                fcin.close();
                fcin = null;
            } catch (IOException xio) {
            }
        if (fcout != null && fcout.isOpen())
            try {
                fcout.close();
                fcout = null;
            } catch (IOException xio) {
            }
    }
    if (xforward != null) {
        throw xforward;
    }
}

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From source file:org.apache.gobblin.example.githubjsontoparquet.EmbeddedGithubJsonToParquet.java

private void downloadFile(String fileUrl, Path destination) {
    if (destination.toFile().exists()) {
        Log.info(String.format("Skipping download for %s at %s because destination already exists", fileUrl,
                destination.toString()));
        return;/*from w  ww.j a  v a 2  s  .co m*/
    }

    try {
        URL archiveUrl = new URL(fileUrl);
        ReadableByteChannel rbc = Channels.newChannel(archiveUrl.openStream());
        FileOutputStream fos = new FileOutputStream(String.valueOf(destination));
        Log.info(String.format("Downloading %s at %s", fileUrl, destination.toString()));
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
        Log.info(String.format("Download complete for %s at %s", fileUrl, destination.toString()));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:org.red5.server.net.proxy.DebugProxyHandler.java

/** {@inheritDoc} */
@Override/*www  .  j a v  a2s  . c  o m*/
public void sessionCreated(IoSession session) throws Exception {

    boolean isClient = session.getRemoteAddress().equals(forward);
    //session.getConfig();

    if (log.isDebugEnabled()) {
        log.debug("Is downstream: " + isClient);

        session.setAttribute(ProtocolState.SESSION_KEY, new RTMP(isClient));

        session.getFilterChain().addFirst("protocol", new ProtocolCodecFilter(codecFactory));
    }

    session.getFilterChain().addFirst("proxy", new ProxyFilter(isClient ? "client" : "server"));

    if (true) {

        String fileName = System.currentTimeMillis() + '_' + forward.getHostName() + '_' + forward.getPort()
                + '_' + (isClient ? "DOWNSTREAM" : "UPSTREAM");

        File headersFile = loader.getResource(dumpTo + fileName + ".cap").getFile();
        headersFile.createNewFile();

        File rawFile = loader.getResource(dumpTo + fileName + ".raw").getFile();
        rawFile.createNewFile();

        FileOutputStream headersFos = new FileOutputStream(headersFile);
        WritableByteChannel headers = headersFos.getChannel();

        FileOutputStream rawFos = new FileOutputStream(rawFile);
        WritableByteChannel raw = rawFos.getChannel();

        ByteBuffer header = ByteBuffer.allocate(1);
        header.put((byte) (isClient ? 0x00 : 0x01));
        header.flip();
        headers.write(header.buf());

        session.getFilterChain().addFirst("dump", new NetworkDumpFilter(headers, raw));
    }

    //session.getFilterChain().addLast(
    //        "logger", new LoggingFilter() );

    if (!isClient) {
        log.debug("Connecting..");
        SocketConnector connector = new SocketConnector();
        ConnectFuture future = connector.connect(forward, this);
        future.join(); // wait for connect, or timeout
        if (future.isConnected()) {
            if (log.isDebugEnabled()) {
                log.debug("Connected: " + forward);
            }
            IoSession client = future.getSession();
            client.setAttribute(ProxyFilter.FORWARD_KEY, session);
            session.setAttribute(ProxyFilter.FORWARD_KEY, client);
        }
    }
    super.sessionCreated(session);
}

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From source file:com.mgmtp.perfload.perfalyzer.util.BinnedFilesMerger.java

public void mergeFiles() throws IOException {
    if (!inputDir.isDirectory()) {
        throw new IllegalArgumentException("The input File must be a directory");
    }// w  w  w .  ja v  a2 s  .  c om

    StrTokenizer tokenizer = StrTokenizer.getCSVInstance();
    tokenizer.setDelimiterChar(DELIMITER);
    Map<String, FileChannel> destChannels = newHashMap();
    List<OutputStream> outputStreams = newArrayList();
    File[] filesInInputDirectory = inputDir.listFiles();

    try {
        for (File file : filesInInputDirectory) {
            FileInputStream fis = null;
            try {
                fis = new FileInputStream(file);
                for (Scanner scanner = new Scanner(fis.getChannel(), Charsets.UTF_8.name()); scanner
                        .hasNext();) {
                    String line = scanner.nextLine();
                    tokenizer.reset(line);

                    List<String> tokenList = tokenizer.getTokenList();
                    String key = tokenList.get(sortCriteriaColumn);
                    FileChannel destChannel = destChannels.get(key);
                    if (destChannel == null) {
                        FileOutputStream fos = new FileOutputStream(
                                new File(outputDir, FILE_TYPE + "_" + key + ".out"));
                        outputStreams.add(fos);
                        destChannel = fos.getChannel();
                        destChannels.put(key, destChannel);

                        //Write the Header...... Has to be improved
                        IoUtilities.writeLineToChannel(destChannel, getHeader(), Charsets.UTF_8);
                    }

                    StrBuilder outputLine = new StrBuilder();
                    for (String s : tokenList) {
                        StrBuilderUtils.appendEscapedAndQuoted(outputLine, DELIMITER, s);
                    }
                    IoUtilities.writeLineToChannel(destChannel, outputLine.toString(), Charsets.UTF_8);
                }
            } finally {
                closeQuietly(fis);
            }
        }
    } finally {
        outputStreams.forEach(IOUtils::closeQuietly);
    }

}

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From source file:org.apache.hama.bsp.message.io.WriteSpilledDataProcessor.java

private void initializeFileChannel() {
    FileOutputStream stream;
    try {/*ww  w .  j  a  va 2  s .  c  o m*/
        stream = new FileOutputStream(new File(fileName), true);
    } catch (FileNotFoundException e) {
        LOG.error("Error opening file to write spilled data.", e);
        throw new RuntimeException(e);
    }
    fileChannel = stream.getChannel();
}

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From source file:siddur.solidtrust.fault.FaultController.java

@RequestMapping(value = "/upload", method = RequestMethod.POST)
public String handleFormUpload(@RequestParam("file") MultipartFile file, @RequestParam("version") int v,
        Model model, HttpSession session) throws Exception {

    IFaultPersister persister = getPersister(v);

    //upload//from   w w  w . j  a  v  a2 s.  c  o  m
    log4j.info("Start uploading file: " + file.getName() + " with size: " + file.getSize());
    File temp = File.createTempFile("data", ".csv");
    log4j.info("Will save to " + temp.getAbsolutePath());

    InputStream in = null;
    FileOutputStream fout = null;

    try {
        fout = new FileOutputStream(temp);
        FileChannel fcout = fout.getChannel();

        in = file.getInputStream();
        ReadableByteChannel cin = Channels.newChannel(in);

        ByteBuffer buf = ByteBuffer.allocate(1024 * 8);
        while (true) {
            buf.clear();

            int r = cin.read(buf);

            if (r == -1) {
                break;
            }

            buf.flip();
            fcout.write(buf);
        }
    } finally {
        if (in != null) {
            in.close();
        }
        if (fout != null) {
            fout.close();
        }
    }
    log4j.info("Uploading complete");

    //fields
    BufferedReader br = null;
    int[] orders;
    try {
        in = new FileInputStream(temp);
        br = new BufferedReader(new InputStreamReader(in));

        //first line for fields
        String firstLine = br.readLine();
        orders = persister.validateTitle(firstLine);

        //persist
        persister.parseAndSave(br, orders, persister);
    } finally {
        if (br != null) {
            br.close();
        }
    }

    return "redirect:upload.html";
}

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