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

/**
 * Descomprime uma string utilizando o GZIP
 * /*www  . j  av  a  2 s. co m*/
 * @param str
 * @param encoding
 * @return
 */
public static String gzipDecompress(byte[] bytes, String encoding) {
    String decompressedString = "";

    try {
        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
        GZIPInputStream gzip = new GZIPInputStream(bais);
        Reader reader = new InputStreamReader(gzip, encoding);
        StringBuffer sbuf = new StringBuffer();
        char[] buffer = new char[32 * 1024];
        int nread;
        while ((nread = reader.read(buffer)) >= 0) {
            sbuf.append(buffer, 0, nread);
        }
        decompressedString = sbuf.toString();
        reader.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return decompressedString;
}

From source file:Main.java

public static Node stringToNode(String string) {
    try {//from   w  w w. jav  a2s  .  c  om
        DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        return db.parse(new ByteArrayInputStream(string.getBytes())).getFirstChild();
    } catch (SAXException ex) {
        throw new RuntimeException(ex);
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    } catch (ParserConfigurationException ex) {
        throw new RuntimeException(ex);
    }
}

From source file:Main.java

public static byte[] unzip(byte[] output) {
    if (output == null || output.length == 0) {
        return output;
    }//from   w ww  .  ja va  2 s .co m
    try {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ByteArrayInputStream in = new ByteArrayInputStream(output);
        GZIPInputStream gunzip = new GZIPInputStream(in);
        byte[] buffer = new byte[BUFFER_SIZE];
        int ret;
        while ((ret = gunzip.read(buffer)) >= 0) {
            out.write(buffer, 0, ret);
        }
        gunzip.close();
        return out.toByteArray();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

public static Bitmap byteToBitmap(byte[] imgByte) {
    InputStream input = null;//from  ww w . j av  a2  s  .com
    Bitmap bitmap = null;
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inSampleSize = 1;
    input = new ByteArrayInputStream(imgByte);
    SoftReference softRef = new SoftReference(BitmapFactory.decodeStream(input, null, options));
    bitmap = (Bitmap) softRef.get();
    if (imgByte != null) {
        imgByte = null;
    }

    try {
        if (input != null) {
            input.close();
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return bitmap;
}

From source file:Main.java

/**
 * Convert bytes array to object./*from w w  w .  j  a  v  a  2 s.co  m*/
 *
 * @param bytes object bytes
 * @param <T> object class
 * @return object
 */
public static <T> T fromBytes(byte[] bytes) {
    Object result = null;
    ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
    ObjectInput in = null;
    try {
        in = new ObjectInputStream(bis);
        result = in.readObject();
    } catch (IOException | ClassNotFoundException e) {
        throw new RuntimeException(e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (Exception e) {
            }
        }
        if (bis != null) {
            try {
                bis.close();
            } catch (Exception e) {
            }
        }
    }
    return (T) result;
}

From source file:Main.java

/**
 * Bitmap into compressed PNG as InputStream object
 *
 * @param image the Bitmap//from  w w  w. j a va2s .  c  om
 * @return compressed PNG as InputStream object
 */
public static ByteArrayInputStream bitmapToPngInputStream(final Bitmap image) {
    return new ByteArrayInputStream(bitmapToPng(image));
}

From source file:Main.java

public static String[] xpathOnString(String q, String stringdoc) {
    try {//from   ww w .j  a  va 2  s  .c o m
        DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
        // domFactory.setNamespaceAware(true);
        DocumentBuilder builder = domFactory.newDocumentBuilder();
        Document doc = builder.parse(new ByteArrayInputStream(stringdoc.getBytes()));

        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile(q);

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

        String res[] = new String[nodes.getLength()];
        for (int i = 0; i < nodes.getLength(); i++) {
            // System.out.println(nodes.item(i).toString());
            res[i] = nodes.item(i).getNodeValue();
        }
        return res;
    } catch (Exception e) {
        System.out.println("XPathUtils.xpathOnString:caught:" + e);
        return null;
    }
}

From source file:Main.java

static public byte[] gunzip(byte src[], byte default_value[]) {
    try {/*from  w  ww.j  a  v a2  s .c  o  m*/
        if (src == null)
            return default_value;

        ByteArrayOutputStream out = new ByteArrayOutputStream();

        GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(src));

        IOUtils.copy(in, out);

        in.close();
        out.close();

        return out.toByteArray();
    } catch (Exception e) {
        return default_value;
    }
}

From source file:Main.java

public static Object parseXmlStringToBeanByJAXB(String xml, Class clase) throws Exception {

    JAXBContext context = JAXBContext.newInstance(clase);
    Unmarshaller unmarshaller = context.createUnmarshaller();
    InputStream is = null;//from  w  w  w. j a va 2s.  c  o  m
    try {
        is = new ByteArrayInputStream(xml.getBytes("UTF-8"));
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    if (is == null) {
        return null;
    }

    JAXBElement elm = unmarshaller.unmarshal(new StreamSource(is), clase);

    return elm.getValue();

}

From source file:Main.java

public static Document getDocument(String xml) {
    if (xml == null || xml.indexOf("<?xml") < 0)
        return null;
    try {/* w  w  w  .j  a  v a  2s .  c o m*/
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document doc = db.parse(new ByteArrayInputStream(xml.getBytes()));
        return doc;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}