Example usage for java.io ByteArrayOutputStream close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closing a ByteArrayOutputStream has no effect.

Usage

From source file:edu.ku.brc.ui.GraphicsUtils.java

/**
 * @param orig the original image/*from   ww  w .ja  va  2  s.c  o  m*/
 * @param maxHeight the max height of the scaled image
 * @param maxWidth the max width of the scaled image
 * @param preserveAspectRatio if true, the scaling preserves the aspect ratio of the original image
 * @param doHighQuality do higher quality thumbnail (slow)
 * @return the byte array of the scaled image
 * @throws IOException an error occurred while encoding the result as a JPEG image
 */
public static byte[] scaleImage(final BufferedImage orig, final int maxHeight, final int maxWidth,
        final boolean preserveAspectRatio, boolean doHighQuality) throws IOException {
    BufferedImage scaled;
    if (true) {
        int targetW = maxWidth;
        int targetH = maxHeight;

        if (preserveAspectRatio) {
            int origWidth = orig.getWidth();
            int origHeight = orig.getHeight();

            double origRatio = (double) origWidth / (double) origHeight;
            double scaledRatio = (double) maxWidth / (double) maxHeight;

            if (origRatio > scaledRatio) {
                targetH = (int) (targetW / origRatio);
            } else {
                targetW = (int) (targetH * origRatio);
            }
        }

        scaled = getScaledInstance(orig, targetW, targetH, doHighQuality);
    } else {
        scaled = generateScaledImage(orig, RenderingHints.VALUE_INTERPOLATION_BILINEAR,
                Math.max(maxHeight, maxWidth));
    }

    ByteArrayOutputStream output = new ByteArrayOutputStream(8192);

    ImageIO.write(scaled, "jpeg", output);

    byte[] outputBytes = output.toByteArray();
    output.close();

    return outputBytes;
}

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From source file:tr.com.turkcellteknoloji.turkcellupdater.Utilities.java

static byte[] compress(String string) throws IOException {
    ByteArrayOutputStream os = new ByteArrayOutputStream(string.length());
    GZIPOutputStream gos = new GZIPOutputStream(os);
    gos.write(string.getBytes("UTF-8"));
    gos.close();/*from w ww.j  a  va2  s . co  m*/
    byte[] compressed = os.toByteArray();
    os.close();
    return compressed;
}

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From source file:com.aurel.track.admin.customize.lists.BlobBL.java

/**
 * This method returns the iconKey content in byte array.In case of not founds returns the default image content. 
 * @param iconKey//from   w w  w  . j  a  v  a 2  s. c  om
 * @param iconName
 * @param inline
 * @param defaultIconPath
 * @return
 */
public static byte[] getAvatarInByteArray(Integer iconKey, String iconName, boolean inline,
        String defaultIconPath) {
    byte[] imageContent = null;
    if (iconKey != null) {
        TBLOBBean blobBean = loadByPrimaryKey(iconKey);
        if (blobBean != null) {
            imageContent = blobBean.getBLOBValue();
        }
    }
    if (defaultIconPath != null) {
        if (imageContent == null || imageContent.length == 0) {
            try {
                URL defaultIconURL = ApplicationBean.getInstance().getServletContext()
                        .getResource(defaultIconPath);
                imageContent = IOUtils.toByteArray(defaultIconURL.openStream());
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath + " from URL failed with "
                        + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
        if (imageContent == null || imageContent.length == 0) {
            InputStream is = ApplicationBean.getInstance().getServletContext()
                    .getResourceAsStream(defaultIconPath);
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            try {
                byte[] buf = new byte[1024];
                int numBytesRead;
                while ((numBytesRead = is.read(buf)) != -1) {
                    output.write(buf, 0, numBytesRead);
                }
                imageContent = output.toByteArray();
                output.close();
                is.close();
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath
                        + " as resource stream failed with " + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
    }
    return imageContent;
}

---

From source file:com.aurel.track.admin.customize.lists.BlobBL.java

/**
 * Download the icon if exists. If there is no icon set then the default
 * blank icon will be rendered/*from   w ww  .  j a v a 2 s  .  c  o m*/
 * 
 * @param iconKey
 * @param iconName
 * @param request
 * @param reponse
 * @param inline
 */
public static void download(Integer iconKey, String iconName, HttpServletRequest request,
        HttpServletResponse reponse, boolean inline, String defaultIconPath) {
    byte[] imageContent = null;
    if (iconKey != null) {
        TBLOBBean blobBean = loadByPrimaryKey(iconKey);
        if (blobBean != null) {
            imageContent = blobBean.getBLOBValue();
        }
    }
    if (defaultIconPath != null) {
        if (imageContent == null || imageContent.length == 0) {
            try {
                URL defaultIconURL = ApplicationBean.getInstance().getServletContext()
                        .getResource(defaultIconPath);
                if (defaultIconURL != null) {
                    imageContent = IOUtils.toByteArray(defaultIconURL.openStream());
                }
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath + " from URL failed with "
                        + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
        if (imageContent == null || imageContent.length == 0) {
            InputStream is = ApplicationBean.getInstance().getServletContext()
                    .getResourceAsStream(defaultIconPath);
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            try {
                byte[] buf = new byte[1024];
                int numBytesRead;
                while ((numBytesRead = is.read(buf)) != -1) {
                    output.write(buf, 0, numBytesRead);
                }
                imageContent = output.toByteArray();
                output.close();
                is.close();
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath
                        + " as resource stream failed with " + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
    }
    if (imageContent != null) {
        download(imageContent, request, reponse, iconName, inline);
    }
}

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From source file:de.unwesen.packrat.api.APIBase.java

/**
 * Converts an InputStream to a byte array containing the InputStream's content.
 **//*from  ww  w. java 2s. c  om*/
public static byte[] readStreamRaw(InputStream is) throws IOException {
    ByteArrayOutputStream os = new ByteArrayOutputStream(READ_BUFFER_SIZE);
    byte[] bytes = new byte[READ_BUFFER_SIZE];

    try {
        // Read bytes from the input stream in chunks and write
        // them into the output stream
        int bytes_read = 0;
        while (-1 != (bytes_read = is.read(bytes))) {
            os.write(bytes, 0, bytes_read);
        }

        byte[] retval = os.toByteArray();

        is.close();
        os.close();

        return retval;
    } catch (java.io.IOException ex) {
        Log.e(LTAG, "Could not read input stream: " + ex.getMessage());
    }
    return null;
}

---

From source file:net.brtly.monkeyboard.api.plugin.Bundle.java

/**
 * Convert a Bundle object to a byte array that can be deserialized by
 * {@link #fromByteArray(byte[])}/*from   www  .ja v  a  2s  .  c  om*/
 * 
 * @param b
 * @return
 * @throws IOException
 */
public static byte[] toByteArray(Bundle b) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;
    try {
        out = new ObjectOutputStream(bos);
        out.writeObject(b);
        return bos.toByteArray();
    } finally {
        out.close();
        bos.close();
    }
}

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From source file:com.example.android.wearable.mjpegviewwear.MainActivity.java

/**
 * Builds an {@link com.google.android.gms.wearable.Asset} from a bitmap. The image that we get
 * back from the camera in "data" is a thumbnail size. Typically, your image should not exceed
 * 320x320 and if you want to have zoom and parallax effect in your app, limit the size of your
 * image to 640x400. Resize your image before transferring to your wearable device.
 *//*from  ww  w .  j a v  a2s  . c  o  m*/
private static Asset toAsset(Bitmap bitmap) {
    ByteArrayOutputStream byteStream = null;
    try {
        byteStream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 80, byteStream);
        return Asset.createFromBytes(byteStream.toByteArray());
    } finally {
        if (null != byteStream) {
            try {
                byteStream.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
}

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From source file:Main.java

public static boolean saveJPEGBitmap(Bitmap aBmp, String aPath) {
    if (aBmp == null || aPath == null) {
        return false;
    }/*from  w w  w  . j a  v  a 2 s. co  m*/

    FileOutputStream fos = null;
    ByteArrayOutputStream baos = null;
    boolean result = false;
    try {
        File file = new File(aPath);
        if (!file.exists()) {
            file.createNewFile();
        }
        fos = new FileOutputStream(file);
        baos = new ByteArrayOutputStream();
        aBmp.compress(Bitmap.CompressFormat.JPEG, 100, baos); //SUPPRESS CHECKSTYLE
        fos.write(baos.toByteArray());
        baos.flush();
        fos.flush();

        result = true;
    } catch (Error e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
        result = false;
    } finally {
        try {
            if (baos != null) {
                baos.close();
            }
            if (fos != null) {
                fos.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return result;
}

---

From source file:org.kiji.scoring.server.KijiScoringServerCell.java

/**
 * Returns an encoded JSON string for the given object.
 *
 * @param input datum to encode as a JSON string.
 * @return the JSON string representing this object.
 *
 * @throws IOException if there is an error encoding the datum.
 *//* w w  w .  j  a va2s . com*/
private static String getJsonString(final Object input) throws IOException {

    final String jsonString;
    if (input instanceof GenericContainer) {
        final GenericContainer record = (GenericContainer) input;
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            final JsonEncoder encoder = EncoderFactory.get().jsonEncoder(record.getSchema(), baos);
            if (record instanceof SpecificRecord) {
                new SpecificDatumWriter<GenericContainer>(record.getSchema()).write(record, encoder);
            } else {
                new GenericDatumWriter<GenericContainer>(record.getSchema()).write(record, encoder);
            }
            encoder.flush();
            jsonString = new String(baos.toByteArray(), Charset.forName("UTF-8"));
        } finally {
            baos.close();
        }
    } else {
        jsonString = input.toString();
    }

    return jsonString;
}

---

From source file:com.appassit.common.Utils.java

/**
 * <p>/*from www . j a  va 2s.  com*/
 * Get UTF8 bytes from a string
 * </p>
 * 
 * @param string
 *            String
 * @return UTF8 byte array, or null if failed to get UTF8 byte array
 */
public static byte[] getUTF8Bytes(String string) {
    if (string == null)
        return new byte[0];

    try {
        return string.getBytes(ENCODING_UTF8);
    } catch (UnsupportedEncodingException e) {
        /*
         * If system doesn't support UTF-8, use another way
         */
        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            DataOutputStream dos = new DataOutputStream(bos);
            dos.writeUTF(string);
            byte[] jdata = bos.toByteArray();
            bos.close();
            dos.close();
            byte[] buff = new byte[jdata.length - 2];
            System.arraycopy(jdata, 2, buff, 0, buff.length);
            return buff;
        } catch (IOException ex) {
            return new byte[0];
        }
    }
}

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