Example usage for java.io ByteArrayOutputStream write

Introduction

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

Prototype

public synchronized void write(byte b[], int off, int len) 

Source Link

Document

Writes len bytes from the specified byte array starting at offset off to this ByteArrayOutputStream .

Usage

From source file:Main.java

public static byte[] compress(byte[] data, int level) throws IOException {
    if (data == null || data.length == 0) {
        return data;
    }/*w w  w  .jav a 2 s.  c  om*/
    ByteArrayOutputStream bout = new ByteArrayOutputStream(data.length);
    Deflater deflater = new Deflater();
    deflater.setLevel(level);
    deflater.setInput(data);
    deflater.finish();
    byte[] buf = new byte[BUFFER_SIZE];
    while (!deflater.finished()) {
        int count = deflater.deflate(buf);
        bout.write(buf, 0, count);
    }
    deflater.end();
    bout.close();
    return bout.toByteArray();
}

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From source file:Main.java

public static String decompress(String hexString) throws UnsupportedEncodingException {
    final byte[] byteArray = new byte[hexString.length() / 2];
    int k = 0;/*from  w  w  w.  j  av  a 2 s  .  c o  m*/
    for (int i = 0; i < byteArray.length; i++) {
        byte high = (byte) (Character.digit(hexString.charAt(k), 16) & 0xff);
        byte low = (byte) (Character.digit(hexString.charAt(k + 1), 16) & 0xff);
        byteArray[i] = (byte) (high << 4 | low);
        k += 2;
    }

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteArrayInputStream in = new ByteArrayInputStream(byteArray);

    try {
        GZIPInputStream gunzip = new GZIPInputStream(in);
        byte[] buffer = new byte[256];
        int n;
        while ((n = gunzip.read(buffer)) >= 0) {
            out.write(buffer, 0, n);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

    return out.toString();
}

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From source file:com.iaraby.utility.HttpUtility.java

/**
 * Read the Http response bytes and return the String value
 * String value could be row data or josn or xml data 
 * /*from   w ww . j  a v a  2s.  c  o  m*/
 * @param HttpResponse
 * @return String value 
 * @throws IllegalStateException
 * @throws IOException
 */
public static String readHttpResponse(HttpResponse response) throws IllegalStateException, IOException {
    HttpEntity entity = response.getEntity();
    InputStream inputStream = entity.getContent();

    ByteArrayOutputStream content = new ByteArrayOutputStream();

    int readBytes = 0;
    byte[] sBuffer = new byte[512];
    while ((readBytes = inputStream.read(sBuffer)) != -1) {
        content.write(sBuffer, 0, readBytes);
    }

    inputStream.close();

    return (new String(content.toByteArray()));

}

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From source file:com.enonic.esl.io.FileUtil.java

/**
 * Get bytes from an input stream./*  w  w w  .  j  a va 2  s .  co m*/
 *
 * @param inputStream the input stream
 * @param sizeHint    a hint of the stream's size
 * @return a byte array containing the stream's contents
 * @throws IOException
 */
public static byte[] getBytesFromStream(InputStream inputStream, int sizeHint) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream(sizeHint);
    int numRead = 0;
    byte[] buffer = new byte[16 * 1024];
    while ((numRead = inputStream.read(buffer)) >= 0) {
        baos.write(buffer, 0, numRead);
    }
    return baos.toByteArray();
}

---

From source file:Main.java

public static byte[] decompress(byte[] bytes) throws IOException {

    GZIPInputStream gzip = null;//from w  ww.j  a va  2s  .c  o  m
    ByteArrayOutputStream baos = null;
    try {
        baos = new ByteArrayOutputStream();

        gzip = new GZIPInputStream(new ByteArrayInputStream(bytes));

        int len = 0;
        byte data[] = new byte[BUFFER_SIZE];

        while ((len = gzip.read(data, 0, BUFFER_SIZE)) != -1) {
            baos.write(data, 0, len);
        }

        gzip.close();
        baos.flush();

        return baos.toByteArray();

    } finally {
        if (gzip != null) {
            gzip.close();
        }
        if (baos != null) {
            baos.close();
        }
    }
}

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From source file:Main.java

public static byte[] readFile(File file) throws IOException {
    if (!file.exists()) {
        throw new IOException("not crete file=" + file.getAbsolutePath());
    }/*w w  w.  j a v  a  2  s .c o m*/
    FileInputStream fileInputStream = null;
    ByteArrayOutputStream byteArrayOutputStream = null;
    try {
        fileInputStream = new FileInputStream(file);
        byteArrayOutputStream = new ByteArrayOutputStream(64);
        int length = 0;
        byte[] buffer = new byte[1024];
        while ((length = fileInputStream.read(buffer)) != -1) {
            byteArrayOutputStream.write(buffer, 0, length);
        }
        return byteArrayOutputStream.toByteArray();
    } finally {
        if (fileInputStream != null) {
            fileInputStream.close();
        }
        if (byteArrayOutputStream != null) {
            byteArrayOutputStream.close();
        }
    }
}

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From source file:c3.ops.priam.utils.SystemUtils.java

public static String getDataFromUrl(String url) {
    try {/*from w  w  w  .  ja v  a 2s . c o  m*/
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setConnectTimeout(1000);
        conn.setReadTimeout(1000);
        conn.setRequestMethod("GET");
        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Unable to get data for URL " + url);
        }
        byte[] b = new byte[2048];
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataInputStream d = new DataInputStream((FilterInputStream) conn.getContent());
        int c = 0;
        while ((c = d.read(b, 0, b.length)) != -1)
            bos.write(b, 0, c);
        String return_ = new String(bos.toByteArray(), Charsets.UTF_8);
        logger.info("Calling URL API: {} returns: {}", url, return_);
        conn.disconnect();
        return return_;
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }

}

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From source file:Main.java

private static String consume(URLConnection connection) throws IOException {
    String encoding = getEncoding(connection);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    InputStream in = connection.getInputStream();
    try {/*from  w w  w . j av  a 2s.  co m*/
        in = connection.getInputStream();
        byte[] buffer = new byte[1024];
        int bytesRead;
        while ((bytesRead = in.read(buffer)) > 0) {
            out.write(buffer, 0, bytesRead);
        }
    } finally {
        try {
            in.close();
        } catch (IOException ioe) {
            // continue
        }
    }
    try {
        return new String(out.toByteArray(), encoding);
    } catch (UnsupportedEncodingException uee) {
        try {
            return new String(out.toByteArray(), "UTF-8");
        } catch (UnsupportedEncodingException uee2) {
            // can't happen
            throw new IllegalStateException(uee2);
        }
    }
}

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From source file:com.easycode.common.HttpUtil.java

public static byte[] httpPost(String url, List<FormItem> blist) throws Exception {
    byte[] ret = null;
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(url);
    MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, null,
            Charset.forName("UTF-8"));
    if (blist != null) {
        for (FormItem f : blist) {
            reqEntity.addPart(f.getName(), f.getCtx());
        }/*from   w  w w .  ja v a 2  s  .  c  o  m*/
    }
    httppost.setEntity(reqEntity);
    HttpResponse response = httpclient.execute(httppost);

    HttpEntity resEntity = response.getEntity();

    if (resEntity != null) {
        InputStream tis = resEntity.getContent();

        java.io.ByteArrayOutputStream out = new java.io.ByteArrayOutputStream();
        byte[] bytes = new byte[1024];
        int len = 0;
        while ((len = tis.read(bytes)) > 0) {
            out.write(bytes, 0, len);
        }
        ret = out.toByteArray();
    }
    EntityUtils.consume(resEntity);
    try {
        httpclient.getConnectionManager().shutdown();
    } catch (Exception ignore) {
    }
    return ret;
}

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From source file:de.l3s.boilerpipe.sax.HTMLFetcher.java

public static HTMLDocument fetchHelper(final URL url) throws IOException {
    final URLConnection conn = url.openConnection();
    //conn.setRequestProperty("User-Agent",
    //"Mozilla/5.0 (Linux; Android 4.0.4; Galaxy Nexus Build/IMM76B) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.133 Mobile Safari/535.19");
    conn.setRequestProperty("User-Agent",
            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.104 Safari/537.36");
    //conn.setRequestProperty("Cookie","wapparam=web2wap; vt=4");
    final String ct = conn.getContentType();

    if (ct == null || !(ct.equals("text/html") || ct.startsWith("text/html;"))) {
        //throw new IOException("Unsupported content type: "+ct+ url);
        System.err.println("WARN: unsupported Content-type: " + ct + url);
    }//from  www. jav a  2  s.  co m

    Charset cs = Charset.forName("UTF8");
    if (ct != null) {
        Matcher m = PAT_CHARSET_REX.matcher(ct);
        if (m.find()) {
            final String charset = m.group(1);
            try {
                cs = Charset.forName(charset);
            } catch (UnsupportedCharsetException e) {
                // keep default
            }
        }
    }

    InputStream in = conn.getInputStream();

    final String encoding = conn.getContentEncoding();
    if (encoding != null) {
        if ("gzip".equalsIgnoreCase(encoding)) {
            in = new GZIPInputStream(in);
        } else {
            System.err.println("WARN: unsupported Content-Encoding: " + encoding);
        }
    }

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buf = new byte[4096];
    int r;
    while ((r = in.read(buf)) != -1) {
        bos.write(buf, 0, r);
    }
    in.close();

    final byte[] data = bos.toByteArray();

    return new HTMLDocument(data, cs);
}

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