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[] readNetWorkInputStream(InputStream in) {
    ByteArrayOutputStream os = null;
    try {// w ww.  jav  a  2  s .  co m
        os = new ByteArrayOutputStream();

        int readCount = 0;
        int len = 1024;
        byte[] buffer = new byte[len];
        while ((readCount = in.read(buffer)) != -1) {
            os.write(buffer, 0, readCount);
        }

        in.close();
        in = null;

        return os.toByteArray();

    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (null != os) {
            try {
                os.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            os = null;
        }
    }
    return null;
}

From source file:com.jaspersoft.jasperserver.api.metadata.common.service.impl.hibernate.persistent.ContentRepoFileResource.java

public static byte[] readFully(InputStream input) throws IOException {
    byte[] buffer = new byte[8192];
    int bytesRead;
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    while ((bytesRead = input.read(buffer)) != -1) {
        output.write(buffer, 0, bytesRead);
    }//from  w ww  .  j  a va 2  s.com
    return output.toByteArray();
}

From source file:Main.java

static public byte[] getBytes(File file) throws IOException {
    InputStream ios = null;/*from   ww w  . j a  va2s.co  m*/
    ByteArrayOutputStream ous = null;
    try {
        byte[] buffer = new byte[4096];
        ous = new ByteArrayOutputStream();
        ios = new FileInputStream(file);
        int read = 0;
        while ((read = ios.read(buffer)) != -1) {
            ous.write(buffer, 0, read);
        }
    } finally {
        try {
            if (ous != null)
                ous.close();
        } catch (IOException e) {
        }

        try {
            if (ios != null)
                ios.close();
        } catch (IOException e) {
        }
    }

    return ous.toByteArray();
}

From source file:com.netflix.dyno.connectionpool.impl.utils.ZipUtils.java

/**
 * Determines if an InputStream is compressed. The java.util.zip GZip
 * implementation does not expose the GZip header so it is difficult to determine
 * if a string is compressed./*w  ww  .  j a v  a2s . c  o  m*/
 *
 * @param inputStream an array of bytes
 * @return true if the stream is compressed or false otherwise
 * @throws java.io.IOException if the byte array couldn't be read
 */
public static boolean isCompressed(InputStream inputStream) throws IOException {
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();

    byte[] data = new byte[2];

    int nRead = inputStream.read(data, 0, 2);
    buffer.write(data, 0, nRead);
    buffer.flush();

    return isCompressed(buffer.toByteArray());
}

From source file:com.ticket.validation.terminal.restful.JsonObjectConverter.java

public static String inputSteamToString(InputStream is, String charset) throws IOException {
    final int BUFFER_SIZE = 1024;

    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    byte[] data = new byte[BUFFER_SIZE];
    int count = -1;

    while ((count = is.read(data, 0, BUFFER_SIZE)) != -1)
        outStream.write(data, 0, count);

    data = null;//www .ja  v a 2s.  c  o m
    return new String(outStream.toByteArray(), charset);
}

From source file:com.useekm.types.AbstractGeo.java

public static byte[] gunzip(byte[] bytes) {
    try {//from ww  w.  j a v a  2 s.c  om
        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
        BufferedInputStream bufis = new BufferedInputStream(new GZIPInputStream(bis));
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        int len;
        while ((len = bufis.read(buf)) > 0)
            bos.write(buf, 0, len);
        byte[] result = bos.toByteArray();
        bufis.close();
        bos.close();
        return result;
    } catch (IOException e) {
        throw new IllegalStateException("Unexpected IOException on inmemory gunzip", e);
    }
}

From source file:fr.mael.microrss.util.Tools.java

/**
 * Reads an image from an url and converts it to byte array
 * @param url//w w w.  j a v  a2s  . co  m
 * @return a byte array representing the image
 */
public static byte[] getImage(String url) {
    try {
        URL imgUrl = new URL(url);
        InputStream inputStream = imgUrl.openStream();
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];

        int n = 0;
        while (-1 != (n = inputStream.read(buffer))) {
            output.write(buffer, 0, n);
        }
        inputStream.close();

        byte[] data = output.toByteArray();
        return data;
    } catch (Exception e) {
        LOG.info("Error get image " + url, e);
    }
    return null;

}

From source file:Main.java

public static byte[] decompress(byte[] data, int off, int len) {
    byte[] output = null;
    Inflater decompresser = new Inflater();
    decompresser.reset();//from  www. ja va2 s. c o m
    //      decompresser.setInput(data);
    decompresser.setInput(data, off, len);

    ByteArrayOutputStream o = new ByteArrayOutputStream(data.length);
    try {
        byte[] buf = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            o.write(buf, 0, i);
        }
        output = o.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        try {
            o.close();
            decompresser.end();
        } catch (Exception e) {
        }
    }

    return output;
}

From source file:Main.java

public static ByteBuffer fromStream(InputStream stream) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(BUFFER_SIZE);

    byte[] buffer = BUFFER_REF.getAndSet(null);
    if (buffer == null) {
        buffer = new byte[BUFFER_SIZE];
    }/*from  w w  w. j  a v  a 2s. c  o m*/

    int n = -1;
    while ((n = stream.read(buffer)) >= 0) {
        outStream.write(buffer, 0, n);
    }

    BUFFER_REF.set(buffer);

    byte[] bytes = outStream.toByteArray();

    // Some resource decoders require a direct byte buffer. Prefer allocateDirect() over wrap()
    return (ByteBuffer) ByteBuffer.allocateDirect(bytes.length).put(bytes).position(0);
}

From source file:Main.java

public static byte[] compress(byte[] uncompressedBuffer) {
    Deflater deflater = new Deflater();
    deflater.setInput(uncompressedBuffer);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(uncompressedBuffer.length);

    try {//from www .  j  a va 2  s  .c  o  m
        deflater.finish();
        byte[] buffer = new byte[1024];
        while (!deflater.finished()) {
            int count = deflater.deflate(buffer);
            outputStream.write(buffer, 0, count);
        }
        byte[] output = outputStream.toByteArray();
        return output;

    } finally {
        try {
            deflater.end();
            outputStream.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}