Example usage for java.io DataOutputStream write

Introduction

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

Prototype

public synchronized void write(int b) throws IOException 

Source Link

Document

Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.

Usage

From source file:org.akita.io.HttpInvoker.java

/**
 * post with files using URLConnection Impl
 * @param actionUrl URL to post//from ww  w .ja va  2  s .c om
 * @param params params to post
 * @param files files to post, support multi-files
 * @return response in String format
 * @throws IOException
 */
public static String postWithFilesUsingURLConnection(String actionUrl, ArrayList<NameValuePair> params,
        Map<String, File> files) throws AkInvokeException {
    try {
        Log.v(TAG, "post:" + actionUrl);
        if (params != null) {
            Log.v(TAG, "params:=====================");
            for (NameValuePair nvp : params) {
                Log.v(TAG, nvp.getName() + "=" + nvp.getValue());
            }
            Log.v(TAG, "params end:=====================");
        }

        String BOUNDARY = java.util.UUID.randomUUID().toString();
        String PREFIX = "--", LINEND = "\r\n";
        String MULTIPART_FROM_DATA = "multipart/form-data";
        String CHARSET = "UTF-8";

        URL uri = new URL(actionUrl);
        HttpURLConnection conn = (HttpURLConnection) uri.openConnection();

        conn.setReadTimeout(60 * 1000);
        conn.setDoInput(true); // permit input
        conn.setDoOutput(true); // permit output
        conn.setUseCaches(false);
        conn.setRequestMethod("POST"); // Post Method
        conn.setRequestProperty("connection", "keep-alive");
        conn.setRequestProperty("Charsert", "UTF-8");
        conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);

        // firstly string params to add
        StringBuilder sb = new StringBuilder();
        for (NameValuePair nameValuePair : params) {
            sb.append(PREFIX);
            sb.append(BOUNDARY);
            sb.append(LINEND);
            sb.append("Content-Disposition: form-data; name=\"" + nameValuePair.getName() + "\"" + LINEND);
            sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND);
            sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
            sb.append(LINEND);
            sb.append(nameValuePair.getValue());
            sb.append(LINEND);
        }

        DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
        outStream.write(sb.toString().getBytes());
        // send files secondly
        if (files != null) {
            int num = 0;
            for (Map.Entry<String, File> file : files.entrySet()) {
                num++;
                if (file.getKey() == null || file.getValue() == null)
                    continue;
                else {
                    if (!file.getValue().exists()) {
                        throw new AkInvokeException(AkInvokeException.CODE_FILE_NOT_FOUND,
                                "The file to upload is not found.");
                    }
                }
                StringBuilder sb1 = new StringBuilder();
                sb1.append(PREFIX);
                sb1.append(BOUNDARY);
                sb1.append(LINEND);
                sb1.append("Content-Disposition: form-data; name=\"" + file.getKey() + "\"; filename=\""
                        + file.getKey() + "\"" + LINEND);
                sb1.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINEND);
                sb1.append(LINEND);
                outStream.write(sb1.toString().getBytes());

                InputStream is = new FileInputStream(file.getValue());
                byte[] buffer = new byte[1024];
                int len = 0;
                while ((len = is.read(buffer)) != -1) {
                    outStream.write(buffer, 0, len);
                }

                is.close();
                outStream.write(LINEND.getBytes());
            }
        }

        // request end flag
        byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
        outStream.write(end_data);
        outStream.flush();
        // get response code
        int res = conn.getResponseCode();
        InputStream in = conn.getInputStream();
        StringBuilder sb2 = new StringBuilder();
        if (res == 200) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(in, "utf-8"), 8192);
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb2.append(line + "\n");
            }
            reader.close();
        }
        outStream.close();
        conn.disconnect();
        Log.v(TAG, "response:" + sb2.toString());
        return sb2.toString();
    } catch (IOException ioe) {
        throw new AkInvokeException(AkInvokeException.CODE_IO_EXCEPTION, "IO Exception", ioe);
    }
}

---

From source file:com.bcmcgroup.flare.client.ClientUtil.java

/**
 * Sends an HTTPS POST request and returns the response
 *
 * @param conn    the HTTPS connection object
 * @param payload the payload for the POST request
 * @return the response from the remote server
 *
 *//*from   w  w  w .jav  a2s .c  o m*/
public static int sendPost(HttpsURLConnection conn, String payload) {
    OutputStream outputStream = null;
    DataOutputStream wr = null;
    InputStream is = null;
    int response = 0;
    logger.debug("Attempting HTTPS POST...");
    try {
        outputStream = conn.getOutputStream();
        wr = new DataOutputStream(outputStream);
        wr.write(payload.getBytes("UTF-8"));
        wr.flush();
        is = conn.getInputStream();
        response = conn.getResponseCode();
    } catch (IOException e) {
        logger.debug("IOException when attempting to send a post message. ");
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close an input stream. ");
            }
        }
        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close an output stream. ");
            }
        }
        if (wr != null) {
            try {
                wr.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close a data output stream. ");
            }
        }
    }
    logger.debug("HTTPS POST Response: " + response);
    return response;
}

---

From source file:com.bcmcgroup.flare.client.ClientUtil.java

/**
 * Sends an HTTPS POST request and returns the response in String format
 *
 * @param conn    the HTTPS connection object
 * @param payload the payload for the POST request
 * @return the response from the remote server in String format
 *
 *//* w  ww.j a  va2  s  .  co  m*/
public static String sendPostGetStringResponse(HttpsURLConnection conn, String payload) {
    OutputStream outputStream = null;
    DataOutputStream wr = null;
    InputStream is = null;
    String response = "";
    logger.debug("Attempting HTTPS POST");
    try {
        outputStream = conn.getOutputStream();
        wr = new DataOutputStream(outputStream);
        wr.write(payload.getBytes("UTF-8"));
        wr.flush();
        is = conn.getInputStream();
        response = IOUtils.toString(is, "UTF-8");
    } catch (IOException e) {
        logger.debug("IOException when attempting to send a post message. ");
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close an input stream. ");
            }
        }
        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close an output stream. ");
            }
        }
        if (wr != null) {
            try {
                wr.close();
            } catch (IOException e) {
                logger.debug("IOException when attempting to close a data output stream. ");
            }
        }
    }
    return response;
}

---

From source file:org.apache.hive.hcatalog.streaming.mutate.client.AcidTableSerializer.java

/** Returns a base 64 encoded representation of the supplied {@link AcidTable}. */
public static String encode(AcidTable table) throws IOException {
    DataOutputStream data = null;
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    try {// w w w .j a va  2 s. c om
        data = new DataOutputStream(bytes);
        data.writeUTF(table.getDatabaseName());
        data.writeUTF(table.getTableName());
        data.writeBoolean(table.createPartitions());
        if (table.getTransactionId() <= 0) {
            LOG.warn("Transaction ID <= 0. The recipient is probably expecting a transaction ID.");
        }
        data.writeLong(table.getTransactionId());
        data.writeByte(table.getTableType().getId());

        Table metaTable = table.getTable();
        if (metaTable != null) {
            byte[] thrift = new TSerializer(new TCompactProtocol.Factory()).serialize(metaTable);
            data.writeInt(thrift.length);
            data.write(thrift);
        } else {
            LOG.warn("Meta store table is null. The recipient is probably expecting an instance.");
            data.writeInt(0);
        }
    } catch (TException e) {
        throw new IOException("Error serializing meta store table.", e);
    } finally {
        data.close();
    }

    return PROLOG_V1 + new String(Base64.encodeBase64(bytes.toByteArray()), Charset.forName("UTF-8"));
}

---

From source file:com.hippo.httpclient.JsonPoster.java

@Override
public void onOutput(HttpURLConnection conn) throws Exception {
    super.onOutput(conn);

    DataOutputStream out = new DataOutputStream(conn.getOutputStream());
    out.write(mJSON.toString().getBytes("utf-8"));
    out.flush();//from   ww w. ja  v  a 2s. c  om
    out.close();
}

---

From source file:CounterApp.java

public int getCount() throws Exception {
    java.net.URL url = new java.net.URL(servletURL);
    java.net.URLConnection con = url.openConnection();
    if (sessionCookie != null) {
        con.setRequestProperty("cookie", sessionCookie);
    }/*from w ww  .j a va  2s  .c  o m*/
    con.setUseCaches(false);
    con.setDoOutput(true);
    con.setDoInput(true);
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(byteOut);
    out.flush();
    byte buf[] = byteOut.toByteArray();
    con.setRequestProperty("Content-type", "application/octet-stream");
    con.setRequestProperty("Content-length", "" + buf.length);
    DataOutputStream dataOut = new DataOutputStream(con.getOutputStream());
    dataOut.write(buf);
    dataOut.flush();
    dataOut.close();
    DataInputStream in = new DataInputStream(con.getInputStream());
    int count = in.readInt();
    in.close();
    if (sessionCookie == null) {
        String cookie = con.getHeaderField("set-cookie");
        if (cookie != null) {
            sessionCookie = parseCookie(cookie);
            System.out.println("Setting session ID=" + sessionCookie);
        }
    }

    return count;
}

---

From source file:dualcontrol.CryptoClientDemo.java

private void call(Properties properties, MockableConsole console, String hostAddress, int port, byte[] data)
        throws Exception {
    Socket socket = SSLContexts.create(false, "cryptoclient.ssl", properties, console).getSocketFactory()
            .createSocket(hostAddress, port);
    DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
    dos.writeShort(data.length);//from   w ww  . j a va  2 s .  c  om
    dos.write(data);
    dos.flush();
    DataInputStream dis = new DataInputStream(socket.getInputStream());
    byte[] ivBytes = new byte[dis.readShort()];
    dis.readFully(ivBytes);
    byte[] bytes = new byte[dis.readShort()];
    dis.readFully(bytes);
    if (new String(data).contains("DECRYPT")) {
        System.err.printf("INFO CryptoClientDemo decrypted %s\n", new String(bytes));
    } else {
        System.out.printf("%s:%s\n", Base64.encodeBase64String(ivBytes), Base64.encodeBase64String(bytes));
    }
    socket.close();
}

---

From source file:org.apache.hadoop.tools.distcp2.mapred.TestCopyMapper.java

private static void touchFile(String path) throws Exception {
    FileSystem fs;// ww w .  jav  a 2s  .  c  om
    DataOutputStream outputStream = null;
    try {
        fs = cluster.getFileSystem();
        final Path qualifiedPath = new Path(path).makeQualified(fs.getUri(), fs.getWorkingDirectory());
        final long blockSize = fs.getDefaultBlockSize() * 2;
        outputStream = fs.create(qualifiedPath, true, 0, (short) (fs.getDefaultReplication() * 2), blockSize);
        outputStream.write(new byte[FILE_SIZE]);
        pathList.add(qualifiedPath);
        ++nFiles;

        FileStatus fileStatus = fs.getFileStatus(qualifiedPath);
        System.out.println(fileStatus.getBlockSize());
        System.out.println(fileStatus.getReplication());
    } finally {
        IOUtils.cleanup(null, outputStream);
    }
}

---

From source file:org.apache.hadoop.tools.mapred.filechunk.TestCopyChunkMapper.java

private static void touchFile(String path, boolean createMultipleBlocks, ChecksumOpt checksumOpt)
        throws Exception {
    FileSystem fs;/*from   w w w . ja  v a  2  s .co m*/
    DataOutputStream outputStream = null;
    try {
        fs = cluster.getFileSystem();
        final Path qualifiedPath = new Path(path).makeQualified(fs.getUri(), fs.getWorkingDirectory());
        final long blockSize = createMultipleBlocks ? NON_DEFAULT_BLOCK_SIZE
                : fs.getDefaultBlockSize(qualifiedPath) * 2;
        FsPermission permission = FsPermission.getFileDefault().applyUMask(FsPermission.getUMask(fs.getConf()));
        outputStream = fs.create(qualifiedPath, permission, EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE),
                0, (short) (fs.getDefaultReplication(qualifiedPath) * 2), blockSize, null, checksumOpt);
        byte[] bytes = new byte[DEFAULT_FILE_SIZE];
        outputStream.write(bytes);
        long fileSize = DEFAULT_FILE_SIZE;
        if (createMultipleBlocks) {
            while (fileSize < 2 * blockSize) {
                outputStream.write(bytes);
                outputStream.flush();
                fileSize += DEFAULT_FILE_SIZE;
            }
        }
        pathList.add(qualifiedPath);
        ++nFiles;

        FileStatus fileStatus = fs.getFileStatus(qualifiedPath);
        System.out.println(fileStatus.getBlockSize());
        System.out.println(fileStatus.getReplication());
    } finally {
        IOUtils.cleanup(null, outputStream);
    }
}

---

From source file:ai.eve.volley.request.JsonRequest.java

@Override
public void getBody(HttpURLConnection connection) {
    try {/* ww  w. j  a  va 2 s. co m*/
        if (mRequestBody != null) {
            connection.setDoOutput(true);
            connection.addRequestProperty(HTTP.CONTENT_TYPE, getBodyContentType());
            DataOutputStream out = new DataOutputStream(connection.getOutputStream());
            out.write(mRequestBody.getBytes(PROTOCOL_CHARSET));
            out.close();
        }
    } catch (UnsupportedEncodingException uee) {
        NetroidLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", mRequestBody,
                PROTOCOL_CHARSET);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

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