Example usage for java.io ByteArrayOutputStream flush

List of usage examples for java.io ByteArrayOutputStream flush

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Introduction

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

Prototype

public void flush() throws IOException

Source Link

Document

Flushes this output stream and forces any buffered output bytes to be written out.

Usage

From source file:net.solarnetwork.node.util.ClassUtils.java

/**
 * Load a classpath SQL resource into a String.
 * // w w w  .  j a  va  2s .c o  m
 * @param resourceName
 *        the SQL resource to load
 * @param clazz
 *        the Class to load the resource from
 * @return the String
 */
public static String getResourceAsString(String resourceName, Class<?> clazz) {
    InputStream in = clazz.getResourceAsStream(resourceName);
    if (in == null) {
        throw new RuntimeException("Resource [" + resourceName + "] not found");
    }
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
        }
        out.flush();
        return out.toString();
    } catch (IOException e) {
        throw new RuntimeException("Error reading resource [" + resourceName + ']', e);
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
            LOG.warn("Could not close InputStream", ex);
        }
        try {
            out.close();
        } catch (IOException ex) {
            LOG.warn("Could not close OutputStream", ex);
        }
    }
}

From source file:Main.java

public static byte[] read(InputStream stream) throws IOException {
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

    try {/*from   w  w  w  .  j  a  v  a  2  s .  c  o  m*/
        byte[] buffer = new byte[1024];
        int length;

        while ((length = stream.read(buffer)) >= 0) {
            byteArrayOutputStream.write(buffer, 0, length);
        }
        stream.close();
        return byteArrayOutputStream.toByteArray();
    } finally {
        byteArrayOutputStream.flush();
        byteArrayOutputStream.close();

    }
}

From source file:com.kcs.core.utilities.Utility.java

public static byte[] generateToBytes(Object jaxbElement) throws Exception {
    ByteArrayOutputStream output = new ByteArrayOutputStream();

    generate(jaxbElement, output);//from  w  w  w .j  av a  2  s. co  m
    output.flush();
    output.close();

    return output.toByteArray();
}

From source file:com.qhn.bhne.xhmusic.utils.MyUtils.java

public static byte[] getBytes(InputStream is) throws Exception {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buffer = new byte[1024];
    int len = 0;/* w ww  .j  av  a 2  s  . c  om*/
    while ((len = is.read(buffer)) != -1) {
        bos.write(buffer, 0, len);
    }
    is.close();
    bos.flush();
    byte[] result = bos.toByteArray();
    System.out.println(new String(result));
    return result;
}

From source file:Main.java

public static Bitmap loadImageFromUrl(String url) {
    ByteArrayOutputStream out = null;
    Bitmap bitmap = null;//from   w w  w.  j av a 2s  .  c om
    int BUFFER_SIZE = 1024 * 8;
    try {
        BufferedInputStream in = new BufferedInputStream(new URL(url).openStream(), BUFFER_SIZE);
        out = new ByteArrayOutputStream(BUFFER_SIZE);
        int length = 0;
        byte[] tem = new byte[BUFFER_SIZE];
        length = in.read(tem);
        while (length != -1) {
            out.write(tem, 0, length);
            out.flush();
            length = in.read(tem);
        }
        in.close();
        if (out.toByteArray().length != 0) {
            bitmap = BitmapFactory.decodeByteArray(out.toByteArray(), 0, out.size());
        } else {
            out.close();
            return null;
        }
        out.close();
    } catch (OutOfMemoryError e) {

        out.reset();
        BitmapFactory.Options opts = new BitmapFactory.Options();
        opts.inSampleSize = 2;
        opts.inJustDecodeBounds = false;
        bitmap = BitmapFactory.decodeByteArray(out.toByteArray(), 0, out.size(), opts);
        return bitmap;
    } catch (Exception e) {

        return bitmap;
    }
    return bitmap;
}

From source file:com.truebanana.http.HTTPResponse.java

protected static HTTPResponse from(HTTPRequest request, HttpURLConnection connection, InputStream content) {
    HTTPResponse response = new HTTPResponse();

    response.originalRequest = request;//from   w w w  .  j av  a  2s  . com
    if (content != null) {
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            byte[] data = new byte[16384];
            int nRead;

            while ((nRead = content.read(data, 0, data.length)) != -1) {
                buffer.write(data, 0, nRead);
            }
            buffer.flush();
            response.content = buffer.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    try {
        response.statusCode = connection.getResponseCode();
    } catch (IOException e) {
    }

    String message = null;
    try {
        message = connection.getResponseMessage();
    } catch (IOException e) {
        message = e.getLocalizedMessage();
    }
    response.responseMessage = response.statusCode + (message != null ? " " + message : "");

    response.headers = connection.getHeaderFields();

    response.requestURL = connection.getURL().toString();

    return response;
}

From source file:net.solarnetwork.util.ClassUtils.java

/**
 * Load a classpath SQL resource into a String.
 * //w ww.  j ava 2 s.c  o  m
 * @param resourceName the SQL resource to load
 * @param clazz the Class to load the resource from
 * @return the String
 */
public static String getResourceAsString(String resourceName, Class<?> clazz) {
    InputStream in = clazz.getResourceAsStream(resourceName);
    if (in == null) {
        throw new RuntimeException("Fesource [" + resourceName + "] not found");
    }
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
        }
        out.flush();
        return out.toString();
    } catch (IOException e) {
        throw new RuntimeException("Error reading resource [" + resourceName + ']', e);
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
            LOG.warn("Could not close InputStream", ex);
        }
        try {
            out.close();
        } catch (IOException ex) {
            LOG.warn("Could not close OutputStream", ex);
        }
    }
}

From source file:com.evolveum.midpoint.report.impl.ReportNodeUtils.java

public static InputStream executeOperation(String host, String fileName, String intraClusterHttpUrlPattern,
        String operation) throws CommunicationException, SecurityViolationException, ObjectNotFoundException,
        ConfigurationException, IOException {
    fileName = fileName.replaceAll("\\s", SPACE);
    InputStream inputStream = null;
    InputStream entityContent = null;
    LOGGER.trace("About to initiate connection with {}", host);
    try {/* ww w.  j a  va  2s  . c om*/
        if (StringUtils.isNotEmpty(intraClusterHttpUrlPattern)) {
            LOGGER.trace("The cluster uri pattern: {} ", intraClusterHttpUrlPattern);
            URI requestUri = buildURI(intraClusterHttpUrlPattern, host, fileName);
            fileName = URLDecoder.decode(fileName, ReportTypeUtil.URLENCODING);

            LOGGER.debug("Sending request to the following uri: {} ", requestUri);
            HttpRequestBase httpRequest = buildHttpRequest(operation);
            httpRequest.setURI(requestUri);
            httpRequest.setHeader("User-Agent", ReportTypeUtil.HEADER_USERAGENT);
            HttpClient client = HttpClientBuilder.create().build();
            try (CloseableHttpResponse response = (CloseableHttpResponse) client.execute(httpRequest)) {
                HttpEntity entity = response.getEntity();
                Integer statusCode = response.getStatusLine().getStatusCode();

                if (statusCode == HttpStatus.SC_OK) {
                    LOGGER.debug("Response OK, the file successfully returned by the cluster peer. ");
                    if (entity != null) {
                        entityContent = entity.getContent();
                        ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
                        byte[] buffer = new byte[1024];
                        int len;
                        while ((len = entityContent.read(buffer)) > -1) {
                            arrayOutputStream.write(buffer, 0, len);
                        }
                        arrayOutputStream.flush();
                        inputStream = new ByteArrayInputStream(arrayOutputStream.toByteArray());
                    }
                } else if (statusCode == HttpStatus.SC_NO_CONTENT) {
                    if (HttpDelete.METHOD_NAME.equals(operation)) {
                        LOGGER.info("Deletion of the file {} was successful.", fileName);
                    }
                } else if (statusCode == HttpStatus.SC_FORBIDDEN) {
                    LOGGER.error("The access to the report with the name {} is forbidden.", fileName);
                    String error = "The access to the report " + fileName + " is forbidden.";
                    throw new SecurityViolationException(error);
                } else if (statusCode == HttpStatus.SC_NOT_FOUND) {
                    String error = "The report file " + fileName
                            + " was not found on the originating nodes filesystem.";
                    throw new ObjectNotFoundException(error);
                }
            } catch (ClientProtocolException e) {
                String error = "An exception with the communication protocol has occurred during a query to the cluster peer. "
                        + e.getLocalizedMessage();
                throw new CommunicationException(error);
            }
        } else {
            LOGGER.error(
                    "Cluster pattern parameters is empty, please refer to the documentation and set up the parameter value accordingly");
            throw new ConfigurationException(
                    "Cluster pattern parameters is empty, please refer to the documentation and set up the parameter value accordingly");
        }
    } catch (URISyntaxException e1) {
        throw new CommunicationException("Invalid uri syntax: " + e1.getLocalizedMessage());
    } catch (UnsupportedEncodingException e) {
        LOGGER.error("Unhandled exception when listing nodes");
        LoggingUtils.logUnexpectedException(LOGGER, "Unhandled exception when listing nodes", e);
    } finally {
        IOUtils.closeQuietly(entityContent);
    }

    return inputStream;
}

From source file:ca.psiphon.tunneledwebview.MainActivity.java

private static byte[] readInputStreamToBytes(InputStream inputStream) throws IOException {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    int readCount;
    byte[] buffer = new byte[16384];
    while ((readCount = inputStream.read(buffer, 0, buffer.length)) != -1) {
        outputStream.write(buffer, 0, readCount);
    }/*from   ww  w.j  av  a2s . c o m*/
    outputStream.flush();
    inputStream.close();
    return outputStream.toByteArray();
}

From source file:Main.java

/**
 * Utility method that creates a <code>UIDefaults.LazyValue</code> that
 * creates an <code>ImageIcon</code> <code>UIResource</code> for the
 * specified image file name. The image is loaded using
 * <code>getResourceAsStream</code>, starting with a call to that method
 * on the base class parameter. If it cannot be found, searching will
 * continue through the base class' inheritance hierarchy, up to and
 * including <code>rootClass</code>.
 *
 * @param baseClass the first class to use in searching for the resource
 * @param rootClass an ancestor of <code>baseClass</code> to finish the
 *                  search at//from w  ww .j av  a2  s .  c o  m
 * @param imageFile the name of the file to be found
 * @return a lazy value that creates the <code>ImageIcon</code>
 *         <code>UIResource</code> for the image,
 *         or null if it cannot be found
 */
public static Object makeIcon(final Class<?> baseClass, final Class<?> rootClass, final String imageFile) {

    return new UIDefaults.LazyValue() {
        public Object createValue(UIDefaults table) {
            /* Copy resource into a byte array.  This is
             * necessary because several browsers consider
             * Class.getResource a security risk because it
             * can be used to load additional classes.
             * Class.getResourceAsStream just returns raw
             * bytes, which we can convert to an image.
             */
            byte[] buffer = java.security.AccessController
                    .doPrivileged(new java.security.PrivilegedAction<byte[]>() {
                        public byte[] run() {
                            try {
                                InputStream resource = null;
                                Class<?> srchClass = baseClass;

                                while (srchClass != null) {
                                    resource = srchClass.getResourceAsStream(imageFile);

                                    if (resource != null || srchClass == rootClass) {
                                        break;
                                    }

                                    srchClass = srchClass.getSuperclass();
                                }

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

                                BufferedInputStream in = new BufferedInputStream(resource);
                                ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
                                byte[] buffer = new byte[1024];
                                int n;
                                while ((n = in.read(buffer)) > 0) {
                                    out.write(buffer, 0, n);
                                }
                                in.close();
                                out.flush();
                                return out.toByteArray();
                            } catch (IOException ioe) {
                                System.err.println(ioe.toString());
                            }
                            return null;
                        }
                    });

            if (buffer == null) {
                return null;
            }
            if (buffer.length == 0) {
                System.err.println("warning: " + imageFile + " is zero-length");
                return null;
            }

            return new ImageIconUIResource(buffer);
        }
    };
}