Example usage for java.io ByteArrayInputStream ByteArrayInputStream

Introduction

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

Prototype

public ByteArrayInputStream(byte buf[])

Source Link

Document

Creates a ByteArrayInputStream so that it uses buf as its buffer array.

Usage

From source file:Main.java

public static byte[] encrypt(byte[] byteArray, PrivateKey privateKey) {
    Cipher cipher = null;//  w  ww.j  a va2  s .  com

    try {
        cipher = Cipher.getInstance("RSA/ECB/NoPadding");
        /*
           (define cipher (javax.crypto.Cipher.getInstance "RSA/ECB/NoPadding"))
         */
    } catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    try {
        cipher.init(Cipher.ENCRYPT_MODE, privateKey);
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    }

    ByteArrayInputStream input = new ByteArrayInputStream(byteArray);
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    try {

        while (input.available() != 0) {
            byte[] t0 = new byte[100];
            input.read(t0);
            output.write(cipher.doFinal(t0));
        }
    } catch (IllegalBlockSizeException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (BadPaddingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return output.toByteArray();
}

From source file:Main.java

/**
 * Uncompresses a GZIP file./*  ww  w . ja v a 2 s . c o m*/
 * 
 * @param bytes
 *            The compressed bytes.
 * @return The uncompressed bytes.
 * @throws IOException
 *             if an I/O error occurs.
 */
public static byte[] gunzip(byte[] bytes) throws IOException {
    /* create the streams */
    InputStream is = new GZIPInputStream(new ByteArrayInputStream(bytes));
    try {
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        try {
            /* copy data between the streams */
            byte[] buf = new byte[4096];
            int len = 0;
            while ((len = is.read(buf, 0, buf.length)) != -1) {
                os.write(buf, 0, len);
            }
        } finally {
            os.close();
        }

        /* return the uncompressed bytes */
        return os.toByteArray();
    } finally {
        is.close();
    }
}

From source file:jfix.zk.Medias.java

public static InputStream asStream(Media media) {
    return new BufferedInputStream(
            media.inMemory() ? new ByteArrayInputStream(media.getByteData()) : media.getStreamData());
}

From source file:com.ning.arecibo.util.timeline.times.TimesAndSamplesCoder.java

public static int getSizeOfTimeBytes(final byte[] timesAndSamples) {
    final DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(timesAndSamples));
    try {//  w  w w.j av  a  2  s.  co m
        return inputStream.readInt();
    } catch (IOException e) {
        throw new IllegalStateException(String.format(
                "Exception reading timeByteCount in TimelineChunkMapper.map() for timesAndSamples %s",
                Hex.encodeHex(timesAndSamples)), e);
    }
}

From source file:de.tntinteractive.portalsammler.engine.MapReaderTest.java

private static MapReader createReader(final String input) throws Exception {
    return MapReader.createFrom(new ByteArrayInputStream(input.getBytes("UTF-8")));
}

From source file:Main.java

/**
 * Degzips <strong>all</strong> of the datain the specified {@link ByteBuffer}.
 *
 * @param compressed The compressed buffer.
 * @return The decompressed array./*from w w w .  ja  va2  s  . com*/
 * @throws IOException If there is an error decompressing the buffer.
 */
public static byte[] degzip(ByteBuffer compressed) throws IOException {
    try (InputStream is = new GZIPInputStream(new ByteArrayInputStream(compressed.array()));
            ByteArrayOutputStream out = new ByteArrayOutputStream()) {
        byte[] buffer = new byte[1024];

        while (true) {
            int read = is.read(buffer, 0, buffer.length);
            if (read == -1) {
                break;
            }

            out.write(buffer, 0, read);
        }

        return out.toByteArray();
    }
}

From source file:Main.java

public static byte[] decompress(byte[] compressed) throws IOException {
    if (compressed == null || compressed.length == 0) {
        return compressed;
    }//from ww  w .  j av  a 2  s . c  o m
    ByteArrayInputStream sourceStream = new ByteArrayInputStream(compressed);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(compressed.length * 2);
    try (GZIPInputStream compressor = new GZIPInputStream(sourceStream)) {
        ByteStreams.copy(compressor, outputStream);
        compressor.close();
    }
    try {
        return outputStream.toByteArray();
    } finally {
        sourceStream.close();
        outputStream.close();
    }
}

From source file:com.honnix.yaacs.util.StreamUtil.java

public static InputStream byteArray2InputStream(byte[] byteArray) {
    return new ByteArrayInputStream(byteArray);
}

From source file:Main.java

public static String setValueXPath(String srcXmlString, String xPath, String newVal) {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(false); // never forget this!
    int i, j;//from   w w  w . j ava  2s .c  o m
    Document doc = null;
    DocumentBuilder builder = null;
    try {
        builder = domFactory.newDocumentBuilder();
        doc = builder.parse(new ByteArrayInputStream(srcXmlString.getBytes()));
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile(xPath);

        Object result = expr.evaluate(doc, XPathConstants.NODESET);

        NodeList xPathNodes = (NodeList) result;
        logger.debug("xpath result count: " + xPathNodes.getLength());
        logger.debug(xPathNodes.item(0).getNodeName() + " = " + xPathNodes.item(0).getTextContent());

        // get list of all nodes in doc
        NodeList nodes = doc.getElementsByTagName("*");
        // iterate through all the nodes
        for (i = 0; i < xPathNodes.getLength(); i++) {
            // for each node in xpath result - traverse through all nodes in
            // doc to find match
            for (j = 0; j < nodes.getLength(); j++) {
                if (nodes.item(j).isSameNode(xPathNodes.item(i))) {
                    logger.debug("Old value " + i + ": " + xPathNodes.item(i).getNodeName() + " = "
                            + xPathNodes.item(i).getTextContent());
                    nodes.item(j).setTextContent(newVal);
                    logger.debug("New value " + i + ": " + xPathNodes.item(i).getNodeName() + " = "
                            + xPathNodes.item(i).getTextContent());
                    break;
                }
            }
        }
    } catch (Exception ex) {
        logger.error(ex.getMessage());
        // ex.printStackTrace();
    }
    return getW3CXmlFromDoc(doc);
}

From source file:Main.java

public static byte[] compress(byte[] source) throws IOException {
    if (source == null || source.length == 0) {
        return source;
    }//from w ww .  j a v  a  2  s .c o  m
    ByteArrayInputStream sourceStream = new ByteArrayInputStream(source);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(source.length / 2);
    try (OutputStream compressor = new GZIPOutputStream(outputStream)) {
        ByteStreams.copy(sourceStream, compressor);
        compressor.close();
    }
    try {
        return outputStream.toByteArray();
    } finally {
        sourceStream.close();
        outputStream.close();
    }
}