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:org.ubicompforall.cityexplorer.CityExplorer.java

/***
 * Ping Google//from  w w  w .  j a va2 s.c  o m
 * Start a browser if the page contains a (log-in) "redirect="
 */
public static boolean pingConnection(Activity context, String url) {
    boolean urlAvailable = false;
    if (ensureConnected(context)) {
        showProgressDialog(context);
        HttpClient httpclient = new DefaultHttpClient();
        try {
            HttpResponse response = httpclient.execute(new HttpGet(url));
            StatusLine statusLine = response.getStatusLine();
            debug(2, "statusLine is " + statusLine);

            // HTTP status is OK even if not logged in to NTNU
            //Toast.makeText( context, "Status-line is "+statusLine, Toast.LENGTH_LONG).show();
            if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                response.getEntity().writeTo(out);
                out.close();
                String responseString = out.toString();
                if (responseString.contains("redirect=")) { // Connection to url should be checked.
                    debug(2, "Redirect detected for url: " + url);
                    //Toast.makeText( context, "Mismatched url: "+url, Toast.LENGTH_LONG).show();
                } else {
                    urlAvailable = true;
                } // if redirect page, else probably OK
            } else {//if status OK, else: Closes the connection on failure
                response.getEntity().getContent().close();
            } //if httpStatus OK, else close

            //Start browser to log in
            if (!urlAvailable) {
                //throw new IOException( statusLine.getReasonPhrase() );

                //String activity = Thread.currentThread().getStackTrace()[3].getClassName();
                Toast.makeText(context, "Web access needed! Are you logged in?", Toast.LENGTH_LONG).show();
                //Uri uri = Uri.parse( url +"#"+ context.getClass().getCanonicalName() );
                Uri uri = Uri.parse(url + "?activity=" + context.getClass().getCanonicalName());
                debug(0, "Pinging magic url: " + uri);
                debug(0, " Need the web for uri: " + uri);
                context.startActivityForResult(new Intent(Intent.ACTION_VIEW, uri), REQUEST_KILL_BROWSER);
                //urlAvailable=true;
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) { // Caused by bad url for example, missing http:// etc. Can still use cached maps...
            urlAvailable = false;
            debug(0, "Missing http:// in " + url + " ?");
        } catch (IOException e) { // e.g. UnknownHostException // try downloading db's from the Web, catch (and print) exceptions
            e.printStackTrace();
            urlAvailable = false;
        }
    } // if not already loaded once before
    return urlAvailable;
}

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From source file:net.vexelon.bgrates.Utils.java

/**
 * Move a file stored in the cache to the internal storage of the specified context
 * @param context/*from  w  w  w. ja  v a2 s.c o  m*/
 * @param cacheFile
 * @param internalStorageName
 */
public static boolean moveCacheFile(Context context, File cacheFile, String internalStorageName) {

    boolean ret = false;
    FileInputStream fis = null;
    FileOutputStream fos = null;

    try {
        fis = new FileInputStream(cacheFile);

        ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
        byte[] buffer = new byte[1024];
        int read = -1;
        while ((read = fis.read(buffer)) != -1) {
            baos.write(buffer, 0, read);
        }
        baos.close();
        fis.close();

        fos = context.openFileOutput(internalStorageName, Context.MODE_PRIVATE);
        baos.writeTo(fos);
        fos.close();

        // delete cache
        cacheFile.delete();

        ret = true;
    } catch (Exception e) {
        //Log.e(TAG, "Error saving previous rates!");
    } finally {
        try {
            if (fis != null)
                fis.close();
        } catch (IOException e) {
        }
        try {
            if (fos != null)
                fos.close();
        } catch (IOException e) {
        }
    }

    return ret;
}

---

From source file:Main.java

public static byte[] decompress(byte[] compressedBuffer) {
    Inflater inflater = new Inflater();
    inflater.setInput(compressedBuffer);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(compressedBuffer.length);
    try {//from  w ww . ja va  2s  . co  m
        byte[] buffer = new byte[1024];
        while (!inflater.finished()) {
            int count = inflater.inflate(buffer);
            outputStream.write(buffer, 0, count);
        }
        byte[] output = outputStream.toByteArray();
        return output;
    } catch (DataFormatException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            inflater.end();
            outputStream.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}

---

From source file:Main.java

/**
 * Convert serializable object to bytes.
 *
 * @param object object//from  w  w w . jav  a  2  s  .  c om
 * @return bytes array
 */
public static byte[] toBytes(Object object) {
    byte[] result = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;
    try {
        out = new ObjectOutputStream(bos);
        out.writeObject(object);
        result = bos.toByteArray();
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        if (out != null) {
            try {
                out.close();
            } catch (Exception e) {
            }
        }
        if (bos != null) {
            try {
                bos.close();
            } catch (Exception e) {
            }
        }
    }
    return result;
}

---

From source file:Main.java

public static byte[] readNetWorkInputStream(InputStream in) {
    ByteArrayOutputStream os = null;
    try {//from w ww  . j  av a  2  s . c  o  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:Main.java

public static byte[] serialize(Object o) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;//from  ww w.  j  a  v a  2 s  .co  m
    byte[] bytes = null;
    try {
        out = new ObjectOutputStream(bos);
        out.writeObject(o);
        bytes = bos.toByteArray();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (out != null) {
                out.close();
            }
        } catch (IOException ex) {
            // ignore close exception
        }
        try {
            bos.close();
        } catch (IOException ex) {
            // ignore close exception
        }
    }
    return bytes;
}

---

From source file:com.aaasec.sigserv.cscommon.DocTypeIdentifier.java

/**
 * Guess the document format and return an appropriate document type string
 *
 * @param is An InputStream holding the document
 * @return "xml" if the document is an XML document or "pdf" if the document
 * is a PDF document, or else an error message.
 *//*from   w w  w .  j ava  2 s. c om*/
public static SigDocumentType getDocType(InputStream is) {
    InputStream input = null;

    try {
        input = new BufferedInputStream(is);
        input.mark(5);
        byte[] preamble = new byte[5];
        int read = 0;
        try {
            read = input.read(preamble);
            input.reset();
        } catch (IOException ex) {
            return SigDocumentType.Unknown;
        }
        if (read < 5) {
            return SigDocumentType.Unknown;
        }
        String preambleString = new String(preamble);
        byte[] xmlPreable = new byte[] { '<', '?', 'x', 'm', 'l' };
        byte[] xmlUtf8 = new byte[] { -17, -69, -65, '<', '?' };
        if (Arrays.equals(preamble, xmlPreable) || Arrays.equals(preamble, xmlUtf8)) {
            return SigDocumentType.XML;
        } else if (preambleString.equals("%PDF-")) {
            return SigDocumentType.PDF;
        } else if (preamble[0] == 'P' && preamble[1] == 'K') {
            ZipInputStream asics = new ZipInputStream(new BufferedInputStream(is));
            ByteArrayOutputStream datafile = null;
            ByteArrayOutputStream signatures = null;
            ZipEntry entry;
            try {
                while ((entry = asics.getNextEntry()) != null) {
                    if (entry.getName().equals("META-INF/signatures.p7s")) {
                        signatures = new ByteArrayOutputStream();
                        IOUtils.copy(asics, signatures);
                        signatures.close();
                    } else if (entry.getName().equalsIgnoreCase("META-INF/signatures.p7s")) {
                        /* Wrong case */
                        // asics;Non ETSI compliant
                        return SigDocumentType.Unknown;
                    } else if (entry.getName().indexOf("/") == -1) {
                        if (datafile == null) {
                            datafile = new ByteArrayOutputStream();
                            IOUtils.copy(asics, datafile);
                            datafile.close();
                        } else {
                            //                              // asics;ASiC-S profile support only one data file
                            return SigDocumentType.Unknown;
                        }
                    }
                }
            } catch (Exception ex) {
                // null;Invalid ASiC-S
                return SigDocumentType.Unknown;
            }
            if (datafile == null || signatures == null) {
                // asics;ASiC-S profile support only one data file with CAdES signature
                return SigDocumentType.Unknown;
            }
            // asics/cades
            return SigDocumentType.Unknown;

        } else if (preambleString.getBytes()[0] == 0x30) {
            // cades;
            return SigDocumentType.Unknown;
        } else {
            // null;Document format not recognized/handled
            return SigDocumentType.Unknown;
        }
    } finally {
        if (input != null) {
            try {
                input.close();
            } catch (IOException e) {
            }
        }
    }
}

---

From source file:com.taobao.tair.etc.TranscoderUtil.java

public static byte[] compress(byte[] in) {
    if (in == null) {
        throw new NullPointerException("Can't compress null");
    }/*w w w  .  ja va2s.c  o m*/

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    GZIPOutputStream gz = null;

    try {
        gz = new GZIPOutputStream(bos);
        gz.write(in);
    } catch (IOException e) {
        throw new RuntimeException("IO exception compressing data", e);
    } finally {
        try {
            gz.close();
            bos.close();
        } catch (Exception e) {
            // should not happen
        }
    }

    byte[] rv = bos.toByteArray();

    if (log.isInfoEnabled()) {
        log.info("compressed value, size from [" + in.length + "] to [" + rv.length + "]");
    }

    return rv;
}

---

From source file:Main.java

public static byte[] getBodyBytes(String ip, String port, byte[] key, byte[] ips)
        throws NumberFormatException, IOException {

    String[] ipArr = ip.split("\\.");
    byte[] ipByte = new byte[4];
    ipByte[0] = (byte) (Integer.parseInt(ipArr[0]) & 0xFF);
    ipByte[1] = (byte) (Integer.parseInt(ipArr[1]) & 0xFF);
    ipByte[2] = (byte) (Integer.parseInt(ipArr[2]) & 0xFF);
    ipByte[3] = (byte) (Integer.parseInt(ipArr[3]) & 0xFF);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    dos.write(ipByte);/*  w  w w .  j a v  a 2 s . c  o m*/
    if (!isNum(port))
        throw new NumberFormatException("port is not number...");
    byte[] portByte = short2bytes(Integer.parseInt(port));
    dos.write(portByte);
    //        dos.writeByte(key.getBytes().length);
    dos.write(key);
    if (ips != null && ips.length > 0 && dos != null) {
        dos.write(ips);
    }
    byte[] bs = baos.toByteArray();
    baos.close();
    dos.close();

    return bs;
}

---

From source file:bencoding.securely.Converters.java

public static String serializeObjectToString(Object object) throws Exception {

    ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
    GZIPOutputStream gzipOutputStream = new GZIPOutputStream(arrayOutputStream);
    ObjectOutputStream objectOutputStream = new ObjectOutputStream(gzipOutputStream);

    objectOutputStream.writeObject(object);

    objectOutputStream.flush();// ww w . j a  v a  2 s  .c o m
    objectOutputStream.close();
    gzipOutputStream.close();
    arrayOutputStream.close();

    String objectString = new String(Base64.encodeToString(arrayOutputStream.toByteArray(), Base64.DEFAULT));

    return objectString;
}

---

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