Example usage for java.io DataInputStream readFully

Introduction

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

Prototype

public final void readFully(byte b[]) throws IOException 

Source Link

Document

See the general contract of the readFully method of DataInput .

Usage

From source file:com.wso2telco.util.FileUtil.java

/**
 * Read fully into var.//from  ww  w. j  a  v a2  s  .  c om
 *
 * @param fullpath the fullpath
 * @return the string
 */
public static String ReadFullyIntoVar(String fullpath) {

    String result = "";

    try {
        FileInputStream file = new FileInputStream(fullpath);
        DataInputStream in = new DataInputStream(file);
        byte[] b = new byte[in.available()];
        in.readFully(b);
        in.close();
        result = new String(b, 0, b.length, "Cp850");
    } catch (Exception e) {
        log.error("Read fully into var Error" + e);
    }
    return result;
}

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From source file:org.fdroid.enigtext.mms.MmsCommunication.java

protected static byte[] parseResponse(HttpEntity entity) throws IOException {
    if (entity == null || entity.getContentLength() == 0)
        return null;

    if (entity.getContentLength() < 0)
        throw new IOException("Unknown content length!");

    byte[] responseBytes = new byte[(int) entity.getContentLength()];
    DataInputStream dataInputStream = new DataInputStream(entity.getContent());
    dataInputStream.readFully(responseBytes);
    dataInputStream.close();//w ww.  j a  v  a 2  s .  c  o m

    entity.consumeContent();
    return responseBytes;
}

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From source file:br.com.manish.ahy.kernel.util.FileUtil.java

public static byte[] readFileAsBytes(String path) {

    byte[] fileArray = null;

    try {//from   w w w.j a  v  a 2s  .  c o m
        File file = new File(path);
        if (file.length() > Integer.MAX_VALUE) {
            throw new OopsException("Oversized file :-( can't read it, sorry: " + path);
        }

        fileArray = new byte[(int) file.length()];
        DataInputStream dis;
        dis = new DataInputStream(new FileInputStream(file));
        dis.readFully(fileArray);
        dis.close();

    } catch (Exception e) {
        throw new OopsException(e, "Problems when reading: [" + path + "].");
    }

    return fileArray;
}

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From source file:it.cnr.icar.eric.common.security.X509Parser.java

/**
 * Parses a X509Certificate from a DER formatted input stream. Uses the 
 * BouncyCastle provider if available./*w w  w . j  a  va  2s  .com*/
 *
 * @param inStream The DER InputStream with the certificate.
 * @return X509Certificate parsed from stream.
 * @throws JAXRException in case of IOException or CertificateException
 *  while parsing the stream.
 */
public static X509Certificate parseX509Certificate(InputStream inStream) throws JAXRException {
    try {
        //possible options
        // - der x509 generated by keytool -export
        // - der x509 generated by openssh x509 (might require BC provider)

        // Get the CertificateFactory to parse the stream
        // if BouncyCastle provider available, use it
        CertificateFactory cf;
        try {
            Class<?> clazz = Class.forName("org.bouncycastle.jce.provider.BouncyCastleProvider");
            Constructor<?> constructor = clazz.getConstructor(new Class[] {});
            Provider bcProvider = (Provider) constructor.newInstance(new Object[] {});
            Security.addProvider(bcProvider);
            cf = CertificateFactory.getInstance("X.509", "BC");
        } catch (Exception e) {
            // log error if bc present but failed to instanciate/add provider
            if (!(e instanceof ClassNotFoundException)) {
                log.error(CommonResourceBundle.getInstance()
                        .getString("message.FailedToInstantiateBouncyCastleProvider"));
            }
            // fall back to default provider
            cf = CertificateFactory.getInstance("X.509");
        }

        // Read the stream to a local variable
        DataInputStream dis = new DataInputStream(inStream);
        byte[] bytes = new byte[dis.available()];
        dis.readFully(bytes);
        ByteArrayInputStream certStream = new ByteArrayInputStream(bytes);

        // Parse the cert stream
        int i = 0;
        Collection<? extends Certificate> c = cf.generateCertificates(certStream);
        X509Certificate[] certs = new X509Certificate[c.toArray().length];
        for (Iterator<? extends Certificate> it = c.iterator(); it.hasNext();) {
            certs[i++] = (X509Certificate) it.next();
        }

        // Some logging..
        if (log.isDebugEnabled()) {
            if (c.size() == 1) {
                log.debug("One certificate, no chain.");
            } else {
                log.debug("Certificate chain length: " + c.size());
            }
            log.debug("Subject DN: " + certs[0].getSubjectDN().getName());
            log.debug("Issuer DN: " + certs[0].getIssuerDN().getName());
        }

        // Do we need to return the chain?
        // do we need to verify if cert is self signed / valid?
        return certs[0];
    } catch (CertificateException e) {
        String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed",
                new Object[] { e.getClass().getName(), e.getMessage() });
        throw new JAXRException(msg, e);
    } catch (IOException e) {
        String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed",
                new Object[] { e.getClass().getName(), e.getMessage() });
        throw new JAXRException(msg, e);
    } finally {
        try {
            inStream.close();
        } catch (IOException e) {
            inStream = null;
        }
    }
}

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From source file:com.hernandez.rey.crypto.TripleDES.java

/**
 * Read a TripleDES secret key from the specified file
 * /*w w  w.j ava 2s .  c  o  m*/
 * @param keyFile key file to read
 * @return secret key appropriate for encryption/decryption with 3DES
 * @throws IOException
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeyException
 * @throws InvalidKeySpecException
 */
public static SecretKey readKey(final File keyFile)
        throws IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidKeySpecException {
    // Read the raw bytes from the keyfile
    final DataInputStream in = new DataInputStream(new FileInputStream(keyFile));
    final byte[] rawkey = new byte[(int) keyFile.length()];
    in.readFully(rawkey);
    in.close();

    // Convert the raw bytes to a secret key like this
    final DESedeKeySpec keyspec = new DESedeKeySpec(rawkey);
    final SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
    final SecretKey key = keyfactory.generateSecret(keyspec);
    return key;
}

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From source file:rlVizLib.messaging.BinaryPayload.java

public static String readRawString(DataInputStream DIS) {
    try {//from   w w  w . j av a2  s .c  o m
        int numBytes = DIS.readInt();
        if (numBytes == 0) {
            return "";
        }
        byte[] theBytes = new byte[numBytes];
        DIS.readFully(theBytes);
        return new String(theBytes);
    } catch (IOException ex) {
        Logger.getLogger(BinaryPayload.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

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From source file:com.android.internal.location.GpsXtraDownloader.java

protected static byte[] doDownload(String url, boolean isProxySet, String proxyHost, int proxyPort) {
    AndroidHttpClient client = null;//from w w w . j  a v a  2 s.co m
    try {
        client = AndroidHttpClient.newInstance("Android");
        HttpUriRequest req = new HttpGet(url);

        if (isProxySet) {
            HttpHost proxy = new HttpHost(proxyHost, proxyPort);
            ConnRouteParams.setDefaultProxy(req.getParams(), proxy);
        }

        req.addHeader("Accept", "*/*, application/vnd.wap.mms-message, application/vnd.wap.sic");

        req.addHeader("x-wap-profile",
                "http://www.openmobilealliance.org/tech/profiles/UAPROF/ccppschema-20021212#");

        HttpResponse response = client.execute(req);
        StatusLine status = response.getStatusLine();
        if (status.getStatusCode() != 200) { // HTTP 200 is success.
            Log.d(TAG, "HTTP error: " + status.getReasonPhrase());
            return null;
        }

        HttpEntity entity = response.getEntity();
        byte[] body = null;
        if (entity != null) {
            try {
                if (entity.getContentLength() > 0) {
                    body = new byte[(int) entity.getContentLength()];
                    DataInputStream dis = new DataInputStream(entity.getContent());
                    try {
                        dis.readFully(body);
                    } finally {
                        try {
                            dis.close();
                        } catch (IOException e) {
                            Log.e(TAG, "Unexpected IOException.", e);
                        }
                    }
                }
            } finally {
                if (entity != null) {
                    entity.consumeContent();
                }
            }
        }
        return body;
    } catch (Exception e) {
        Log.d(TAG, "error " + e);
    } finally {
        if (client != null) {
            client.close();
        }
    }
    return null;
}

---

From source file:com.android.server.location.GpsXtraDownloader.java

protected static byte[] doDownload(String url, boolean isProxySet, String proxyHost, int proxyPort) {
    if (DEBUG)/*ww  w  .  j a v a2 s .  c  o  m*/
        Log.d(TAG, "Downloading XTRA data from " + url);

    AndroidHttpClient client = null;
    try {
        client = AndroidHttpClient.newInstance("Android");
        HttpUriRequest req = new HttpGet(url);

        if (isProxySet) {
            HttpHost proxy = new HttpHost(proxyHost, proxyPort);
            ConnRouteParams.setDefaultProxy(req.getParams(), proxy);
        }

        req.addHeader("Accept", "*/*, application/vnd.wap.mms-message, application/vnd.wap.sic");

        req.addHeader("x-wap-profile",
                "http://www.openmobilealliance.org/tech/profiles/UAPROF/ccppschema-20021212#");

        HttpResponse response = client.execute(req);
        StatusLine status = response.getStatusLine();
        if (status.getStatusCode() != 200) { // HTTP 200 is success.
            if (DEBUG)
                Log.d(TAG, "HTTP error: " + status.getReasonPhrase());
            return null;
        }

        HttpEntity entity = response.getEntity();
        byte[] body = null;
        if (entity != null) {
            try {
                if (entity.getContentLength() > 0) {
                    body = new byte[(int) entity.getContentLength()];
                    DataInputStream dis = new DataInputStream(entity.getContent());
                    try {
                        dis.readFully(body);
                    } finally {
                        try {
                            dis.close();
                        } catch (IOException e) {
                            Log.e(TAG, "Unexpected IOException.", e);
                        }
                    }
                }
            } finally {
                if (entity != null) {
                    entity.consumeContent();
                }
            }
        }
        return body;
    } catch (Exception e) {
        if (DEBUG)
            Log.d(TAG, "error " + e);
    } finally {
        if (client != null) {
            client.close();
        }
    }
    return null;
}

---

From source file:org.mrgeo.utils.StringUtils.java

public static String read(DataInputStream stream) throws IOException {
    int len = stream.readInt();
    if (len == -1) {
        return null;
    } else {/*from   w  ww . j a  v a2 s  . com*/
        byte[] data = new byte[len];
        stream.readFully(data);

        return new String(data, "UTF-8");
    }
}

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From source file:org.apache.xmlgraphics.image.codec.png.PNGChunk.java

/**
 * Reads the next chunk from the input stream.
 * @param distream the input stream/*from   w  w  w  . java2 s .c o m*/
 * @return the chunk
 */
public static PNGChunk readChunk(DataInputStream distream) {
    try {
        int length = distream.readInt();
        int type = distream.readInt();
        byte[] data = new byte[length];
        distream.readFully(data);
        int crc = distream.readInt();

        return new PNGChunk(length, type, data, crc);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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