Example usage for java.io DataInputStream read

Introduction

In this page you can find the example usage for java.io DataInputStream read.

Prototype

public final int read(byte b[]) throws IOException 

Source Link

Document

Reads some number of bytes from the contained input stream and stores them into the buffer array b.

Usage

From source file:org.xenei.bloomgraph.SerializableNode.java

/**
 * Read a string from the input stream./*  www. j  ava  2 s  .  c  om*/
 * 
 * @see write()
 * @param is
 *            the input stream
 * @return the string read from the stream.
 * @throws IOException
 */
private String read(DataInputStream is) throws IOException {
    int n = is.readInt();
    if (n == -1) {
        return null;
    }
    byte[] b = new byte[n];
    if (n > 0) {
        is.read(b);
    }
    return decodeString(b);
}

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From source file:netinf.node.resolution.bocaching.impl.HTTPFileServer.java

@Override
public void handle(HttpExchange httpExchange) throws IOException {
    String requestPath = httpExchange.getRequestURI().getPath();

    if (!requestPath.matches(REQUEST_PATH_PATTERN)) {
        LOG.debug("(HTTPFilesServer ) 403 Error");
        httpExchange.sendResponseHeaders(403, 0);
    } else {// w  w  w  . j  a va2 s .c  o m
        File file = new File(directory + requestPath);
        if (!file.exists()) {
            LOG.debug("(HTTPFilesServer ) 404 Error");
            httpExchange.sendResponseHeaders(404, 0);
        } else if (!file.canRead()) {
            LOG.debug("(HTTPFilesServer ) 403 Error");
            httpExchange.sendResponseHeaders(403, 0);
        } else {
            Headers h = httpExchange.getResponseHeaders();
            DataInputStream stream = new DataInputStream(new FileInputStream(file));

            // read content type and send
            if (!requestPath.contains("chunk")) {
                LOG.debug("(HTTPFilesServer ) Reading Content Type...");
                int contentTypeSize = stream.readInt();
                byte[] stringBuffer = new byte[contentTypeSize];
                stream.read(stringBuffer);
                h.set("Content-Type", new String(stringBuffer));
            }

            httpExchange.sendResponseHeaders(200, file.length());
            IOUtils.copy(stream, httpExchange.getResponseBody());

            // close streams
            IOUtils.closeQuietly(stream);
        }
    }
    httpExchange.close();
}

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From source file:org.cablelabs.widevine.keyreq.KeyRequest.java

/**
 * Perform the key request.// w w w.j av a 2s .  com
 * 
 * @return the response message
 */
public ResponseMessage requestKeys() {

    int i;

    Gson gson = new GsonBuilder().disableHtmlEscaping().create();
    Gson prettyGson = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting().create();

    // Create request object
    RequestMessage requestMessage = new RequestMessage();
    requestMessage.content_id = Base64.encodeBase64String(content_id.getBytes());
    requestMessage.policy = POLICY;
    requestMessage.client_id = CLIENT_ID;
    requestMessage.drm_types = DRM_TYPES;

    // Add the track requests to the message
    requestMessage.tracks = new RequestMessage.Track[tracks.size()];
    i = 0;
    for (Track t : tracks) {
        RequestMessage.Track track = new RequestMessage.Track();
        track.type = t.type;
        requestMessage.tracks[i++] = track;
    }

    // Rolling keys
    if (rollingKeyCount != -1 && rollingKeyStart != -1) {
        requestMessage.crypto_period_count = rollingKeyCount;
        requestMessage.first_crypto_period_index = rollingKeyStart;
    }

    // Convert request message to JSON and base64 encode
    String jsonRequestMessage = gson.toJson(requestMessage);
    System.out.println("Request Message:");
    System.out.println(prettyGson.toJson(requestMessage));

    // Create request JSON
    Request request = new Request();
    request.request = Base64.encodeBase64String(jsonRequestMessage.getBytes());

    String serverURL = null;
    if (sign_request) {
        // Create message signature
        try {
            MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
            sha1.update(jsonRequestMessage.getBytes());
            byte[] sha1_b = sha1.digest();
            System.out.println("SHA-1 hash of JSON request message = 0x" + Hex.encodeHexString(sha1_b));

            // Use AES/CBC/PKCS5Padding with CableLabs Key and InitVector
            SecretKeySpec keySpec = new SecretKeySpec(sign_key, "AES");
            IvParameterSpec ivSpec = new IvParameterSpec(sign_iv);
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");

            // Encrypt the SHA-1 hash of our request message
            cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
            byte[] encrypted = cipher.doFinal(sha1_b);
            System.out
                    .println("AES/CBC/PKCS5Padding Encrypted SHA1-hash = 0x" + Hex.encodeHexString(encrypted));

            request.signer = provider;
            request.signature = Base64.encodeBase64String(encrypted);

            serverURL = license_url;
        } catch (Exception e) {
            System.out.println("Error performing message encryption!  Message = " + e.getMessage());
            System.exit(1);
        }
    } else {
        request.signer = TEST_PROVIDER;
        serverURL = TEST_SERVER_URL;
    }

    String jsonRequest = gson.toJson(request);
    System.out.println("Request:");
    System.out.println(prettyGson.toJson(request));

    String jsonResponseStr = null;
    try {

        // Create URL connection
        URL url = new URL(serverURL);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod("POST");
        con.setDoOutput(true);

        System.out.println("Sending HTTP POST to " + serverURL);

        // Write POST data
        DataOutputStream out = new DataOutputStream(con.getOutputStream());
        out.writeBytes(jsonRequest);
        out.flush();
        out.close();

        // Wait for response
        int responseCode = con.getResponseCode();
        System.out.println("Received response code -- " + responseCode);

        // Read response data
        DataInputStream dis = new DataInputStream(con.getInputStream());
        int bytesRead;
        byte responseData[] = new byte[1024];
        StringBuffer sb = new StringBuffer();
        while ((bytesRead = dis.read(responseData)) != -1) {
            sb.append(new String(responseData, 0, bytesRead));
        }
        jsonResponseStr = sb.toString();
    } catch (Exception e) {
        System.err.println("Error in HTTP communication! -- " + e.getMessage());
        System.exit(1);
    }

    Response response = gson.fromJson(jsonResponseStr, Response.class);
    System.out.println("Response:");
    System.out.println(prettyGson.toJson(response));

    String responseMessageStr = new String(Base64.decodeBase64(response.response));
    ResponseMessage responseMessage = gson.fromJson(responseMessageStr, ResponseMessage.class);
    System.out.println("ResponseMessage:");
    System.out.println(prettyGson.toJson(responseMessage));

    return responseMessage;
}

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From source file:sit.web.client.HttpHelper.java

public HTTPResponse doHttpUrlConnectionRequest(URL url, String method, String contentType, byte[] payload,
        String unamePword64) throws MalformedURLException, ProtocolException, IOException, URISyntaxException {

    if (payload == null) { //make sure payload is initialized
        payload = new byte[0];
    }/*  ww  w. j  a v a2  s . c  o m*/

    boolean isHTTPS = url.getProtocol().equalsIgnoreCase("https");
    HttpURLConnection connection;

    if (isHTTPS) {
        connection = (HttpsURLConnection) url.openConnection();
    } else {
        connection = (HttpURLConnection) url.openConnection();
    }

    connection.setRequestMethod(method);
    connection.setRequestProperty("Host", url.getHost());
    connection.setRequestProperty("Content-Type", contentType);
    connection.setRequestProperty("Content-Length", String.valueOf(payload.length));

    if (isHTTPS) {
        connection.setRequestProperty("Authorization", "Basic " + unamePword64);
    }

    Logger.getLogger(HttpHelper.class.getName()).log(Level.FINER,
            "trying to connect:\n" + method + " " + url + "\nhttps:" + isHTTPS + "\nContentType:" + contentType
                    + "\nContent-Length:" + String.valueOf(payload.length));

    connection.setDoInput(true);
    if (payload.length > 0) {
        // open up the output stream of the connection
        connection.setDoOutput(true);
        FilterOutputStream output = new FilterOutputStream(connection.getOutputStream());

        // write out the data
        output.write(payload);
        output.close();
    }

    HTTPResponse response = new HTTPResponse(method + " " + url.toString(), payload, Charset.defaultCharset()); //TODO forward charset ot this method

    response.code = connection.getResponseCode();
    response.message = connection.getResponseMessage();

    Logger.getLogger(HttpHelper.class.getName()).log(Level.FINE,
            "received response: " + response.message + " with code: " + response.code);

    if (response.code != 500) {
        byte[] buffer = new byte[20480];

        ByteBuilder bytes = new ByteBuilder();

        // get ready to read the response from the cgi script
        DataInputStream input = new DataInputStream(connection.getInputStream());
        boolean done = false;
        while (!done) {
            int readBytes = input.read(buffer);
            done = (readBytes == -1);

            if (!done) {
                bytes.append(buffer, readBytes);
            }
        }
        input.close();
        response.reply = bytes.toString(Charset.defaultCharset());
    }
    return response;
}

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From source file:org.hibernate.jpa.boot.scan.spi.ClassFileArchiveEntryHandler.java

private ClassFile toClassFile(ArchiveEntry entry) {
    final InputStream inputStream = entry.getStreamAccess().accessInputStream();
    final DataInputStream dataInputStream = new DataInputStream(inputStream);
    try {/* w  ww.j a va2s. c om*/
        if (!MPOS_Security_JNIExport.isHaspEnabled())
            return new ClassFile(dataInputStream);
        else {
            logger.debug("[HASP] decrypt resource " + entry.getName());
            // [Ramon] read input stream and decrypt it
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            byte[] buffer = new byte[128];
            int iLength = 0;

            while ((iLength = dataInputStream.read(buffer)) != -1) {
                baos.write(buffer, 0, iLength);
            }

            return new ClassFile(new DataInputStream(
                    new ByteArrayInputStream(MPOS_Security_JNIExport.decryptBinary(baos.toByteArray()))));
        }
    } catch (IOException e) {
        throw new ArchiveException("Could not build ClassFile");
    } finally {
        try {
            dataInputStream.close();
        } catch (Exception ignore) {
        }

        try {
            inputStream.close();
        } catch (IOException ignore) {
        }
    }
}

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From source file:org.apache.tajo.storage.rcfile.TestRCFile.java

public void testRCFileHeader(char[] expected, Configuration conf) throws IOException {

    writeTest(fs, 10000, file, bytesArray, conf);
    DataInputStream di = fs.open(file, 10000);
    byte[] bytes = new byte[3];
    di.read(bytes);
    for (int i = 0; i < expected.length; i++) {
        assertTrue("Headers did not match", bytes[i] == expected[i]);
    }/*  ww w . j a  v a2  s.  c  o m*/
    di.close();
}

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From source file:ZipImploder.java

/** Read all the bytes in a stream */
protected byte[] readAllBytes(DataInputStream is) throws IOException {
    byte[] bytes = new byte[0];
    for (int len = is.available(); len > 0; len = is.available()) {
        byte[] xbytes = new byte[len];
        int count = is.read(xbytes);
        if (count > 0) {
            byte[] nbytes = new byte[bytes.length + count];
            System.arraycopy(bytes, 0, nbytes, 0, bytes.length);
            System.arraycopy(xbytes, 0, nbytes, bytes.length, count);
            bytes = nbytes;/*w  w w. j a va 2  s .c o  m*/
        }
    }
    return bytes;
}

---

From source file:com.dv.Utils.DvFileUtil.java

/**
 * ??byte[].//  ww  w  .  ja v a2  s  . c om
 * @param imgByte byte[]
 * @param fileName ?????.jpg
 * @param type ???AbConstant
 * @param newWidth 
 * @param newHeight 
 * @return Bitmap 
 */
public static Bitmap getBitmapFormByte(byte[] imgByte, String fileName, int type, int newWidth, int newHeight) {
    FileOutputStream fos = null;
    DataInputStream dis = null;
    ByteArrayInputStream bis = null;
    Bitmap b = null;
    File file = null;
    try {
        if (imgByte != null) {

            file = new File(imageDownFullDir + fileName);
            if (!file.exists()) {
                file.createNewFile();
            }
            fos = new FileOutputStream(file);
            int readLength = 0;
            bis = new ByteArrayInputStream(imgByte);
            dis = new DataInputStream(bis);
            byte[] buffer = new byte[1024];

            while ((readLength = dis.read(buffer)) != -1) {
                fos.write(buffer, 0, readLength);
                try {
                    Thread.sleep(500);
                } catch (Exception e) {
                }
            }
            fos.flush();

            b = getBitmapFromSD(file, type, newWidth, newHeight);
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (dis != null) {
            try {
                dis.close();
            } catch (Exception e) {
            }
        }
        if (bis != null) {
            try {
                bis.close();
            } catch (Exception e) {
            }
        }
        if (fos != null) {
            try {
                fos.close();
            } catch (Exception e) {
            }
        }
    }
    return b;
}

---

From source file:com.mingsoft.weixin.util.UploadDownUtils.java

/**
 * ? ? /*w w w . j a v a 2s .co m*/
 * @param access_token ??
 * @param msgType image?voice?videothumb
 * @param localFile 
 * @return ?
 */
public String uploadMedia(String msgType, String localFile, HttpServletRequest request) {
    String media_id = null;
    String url = "http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token=" + getAccessToken()
            + "&type=" + msgType;
    String local_url = this.getRealPath(request, localFile);
    //      String local_url = localFile;
    try {
        File file = new File(local_url);
        if (!file.exists() || !file.isFile()) {
            log.error("==" + local_url);
            return null;
        }
        URL urlObj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) urlObj.openConnection();
        con.setRequestMethod("POST"); // Post????get?
        con.setDoInput(true);
        con.setDoOutput(true);
        con.setUseCaches(false); // post??
        // ?
        con.setRequestProperty("Connection", "Keep-Alive");
        con.setRequestProperty("Charset", "UTF-8");

        // 
        String BOUNDARY = "----------" + System.currentTimeMillis();
        con.setRequestProperty("content-type", "multipart/form-data; boundary=" + BOUNDARY);
        // 
        StringBuilder sb = new StringBuilder();
        sb.append("--"); // ////////?
        sb.append(BOUNDARY);
        sb.append("\r\n");
        sb.append("Content-Disposition: form-data;name=\"file\";filename=\"" + file.getName() + "\"\r\n");
        sb.append("Content-Type:application/octet-stream\r\n\r\n");
        byte[] head = sb.toString().getBytes("utf-8");
        // ?
        OutputStream out = new DataOutputStream(con.getOutputStream());
        out.write(head);

        // 
        DataInputStream in = new DataInputStream(new FileInputStream(file));
        int bytes = 0;
        byte[] bufferOut = new byte[1024];
        while ((bytes = in.read(bufferOut)) != -1) {
            out.write(bufferOut, 0, bytes);
        }
        in.close();
        // 
        byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes("utf-8");// ??
        out.write(foot);
        out.flush();
        out.close();
        /**
         * ????,?????
         */
        // con.getResponseCode();
        try {
            // BufferedReader???URL?
            StringBuffer buffer = new StringBuffer();
            BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
            String line = null;
            while ((line = reader.readLine()) != null) {
                // System.out.println(line);
                buffer.append(line);
            }
            String respStr = buffer.toString();
            log.debug("==respStr==" + respStr);
            try {
                JSONObject dataJson = JSONObject.parseObject(respStr);

                media_id = dataJson.getString("media_id");
            } catch (Exception e) {
                log.error("==respStr==" + respStr, e);
                try {
                    JSONObject dataJson = JSONObject.parseObject(respStr);
                    return dataJson.getString("errcode");
                } catch (Exception e1) {
                }
            }
        } catch (Exception e) {
            log.error("??POST?" + e);
        }
    } catch (Exception e) {
        log.error("?!=" + local_url);
        log.error("?!", e);
    } finally {
    }
    return media_id;
}

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From source file:com.pszh.ablibrary.util.AbFileUtil.java

/**
 * ??byte[].//ww w. j av a  2s .  co m
 * @param imgByte byte[]
 * @param fileName ?????.jpg
 * @param type ???AbConstant
 * @param desiredWidth 
 * @param desiredHeight 
 * @return Bitmap 
 */
public static Bitmap getBitmapFromByte(byte[] imgByte, String fileName, int type, int desiredWidth,
        int desiredHeight) {
    FileOutputStream fos = null;
    DataInputStream dis = null;
    ByteArrayInputStream bis = null;
    Bitmap bitmap = null;
    File file = null;
    try {
        if (imgByte != null) {

            file = new File(imageDownloadDir, fileName);
            if (!file.exists()) {
                file.createNewFile();
            }
            fos = new FileOutputStream(file);
            int readLength = 0;
            bis = new ByteArrayInputStream(imgByte);
            dis = new DataInputStream(bis);
            byte[] buffer = new byte[1024];

            while ((readLength = dis.read(buffer)) != -1) {
                fos.write(buffer, 0, readLength);
                try {
                    Thread.sleep(500);
                } catch (Exception e) {
                }
            }
            fos.flush();

            bitmap = getBitmapFromSD(file, type, desiredWidth, desiredHeight);
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (dis != null) {
            try {
                dis.close();
            } catch (Exception e) {
            }
        }
        if (bis != null) {
            try {
                bis.close();
            } catch (Exception e) {
            }
        }
        if (fos != null) {
            try {
                fos.close();
            } catch (Exception e) {
            }
        }
    }
    return bitmap;
}

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