Example usage for java.net URLConnection getInputStream

List of usage examples for java.net URLConnection getInputStream

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Introduction

In this page you can find the example usage for java.net URLConnection getInputStream.

Prototype

public InputStream getInputStream() throws IOException

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:ch.njol.skript.Updater.java

/**
 * Gets the changelogs and release dates of the newest versions
 * //from   ww  w.j a v a 2  s.c  om
 * @param sender
 */
final static void getChangelogs(final CommandSender sender) {
    InputStream in = null;
    InputStreamReader r = null;
    try {
        final URLConnection conn = new URL(RSSURL).openConnection();
        conn.setRequestProperty("User-Agent", "Skript/v" + Skript.getVersion() + " (by Njol)"); // Bukkit returns a 403 (forbidden) if no user agent is set
        in = conn.getInputStream();
        r = new InputStreamReader(in, conn.getContentEncoding() == null ? "UTF-8" : conn.getContentEncoding());
        final XMLEventReader reader = XMLInputFactory.newInstance().createXMLEventReader(r);

        infos.clear();
        VersionInfo current = null;

        outer: while (reader.hasNext()) {
            XMLEvent e = reader.nextEvent();
            if (e.isStartElement()) {
                final String element = e.asStartElement().getName().getLocalPart();
                if (element.equalsIgnoreCase("title")) {
                    final String name = reader.nextEvent().asCharacters().getData().trim();
                    for (final VersionInfo i : infos) {
                        if (name.equals(i.name)) {
                            current = i;
                            continue outer;
                        }
                    }
                    current = null;
                } else if (element.equalsIgnoreCase("description")) {
                    if (current == null)
                        continue;
                    final StringBuilder cl = new StringBuilder();
                    while ((e = reader.nextEvent()).isCharacters())
                        cl.append(e.asCharacters().getData());
                    current.changelog = "- " + StringEscapeUtils.unescapeHtml("" + cl).replace("<br>", "")
                            .replace("<p>", "").replace("</p>", "").replaceAll("\n(?!\n)", "\n- ");
                } else if (element.equalsIgnoreCase("pubDate")) {
                    if (current == null)
                        continue;
                    synchronized (RFC2822) { // to make FindBugs shut up
                        current.date = new Date(
                                RFC2822.parse(reader.nextEvent().asCharacters().getData()).getTime());
                    }
                }
            }
        }
    } catch (final IOException e) {
        stateLock.writeLock().lock();
        try {
            state = UpdateState.CHECK_ERROR;
            error.set(ExceptionUtils.toString(e));
            Skript.error(sender, m_check_error.toString());
        } finally {
            stateLock.writeLock().unlock();
        }
    } catch (final Exception e) {
        Skript.error(sender, m_internal_error.toString());
        Skript.exception(e, "Unexpected error while checking for a new version of Skript");
        stateLock.writeLock().lock();
        try {
            state = UpdateState.CHECK_ERROR;
            error.set(e.getClass().getSimpleName() + ": " + e.getLocalizedMessage());
        } finally {
            stateLock.writeLock().unlock();
        }
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (final IOException e) {
            }
        }
        if (r != null) {
            try {
                r.close();
            } catch (final IOException e) {
            }
        }
    }
}

From source file:com.dynamobi.network.DynamoNetworkUdr.java

/**
 * Fetches the master metadata.json file on a given repository and returns the
 * data as a JSONObject.//from w  ww  .j  a  va2s  .  c  om
 */
private static JSONObject downloadMetadata(String repo) throws SQLException {
    if (repo == null)
        return null;

    try {
        // Grab master metadata.json
        URL u = new URL(repo + "/metadata.json");
        URLConnection uc = u.openConnection();
        uc.setConnectTimeout(1000); // generous max-of-1-second to connect
        uc.setReadTimeout(1000);
        uc.connect();
        InputStreamReader in = new InputStreamReader(uc.getInputStream());
        BufferedReader buff = new BufferedReader(in);
        StringBuffer sb = new StringBuffer();
        String line = null;
        do {
            line = buff.readLine();
            if (line != null)
                sb.append(line);
        } while (line != null);
        String data = sb.toString();

        // Parse it
        JSONParser parser = new JSONParser();
        JSONObject ob = (JSONObject) parser.parse(data);
        return ob;

    } catch (SocketTimeoutException e) {
        throw new SQLException(URL_TIMEOUT);
    } catch (MalformedURLException e) {
        throw new SQLException("Bad URL.");
    } catch (IOException e) {
        throw new SQLException(URL_TIMEOUT);
    } catch (ParseException e) {
        throw new SQLException("Could not parse data from URL.");
    }

}

From source file:mas.MAS_VLDB.java

/**
 * @param args the command line arguments
 */// w w  w.  j a  v a 2s . com
// for old version
public static void getData(int startIdx, int endIdx) {
    try {
        Properties prop = new Properties();
        prop.setProperty("AppId", "1df63064-efad-4bbd-a797-1131499b7728");
        prop.setProperty("ResultObjects", "publication");
        prop.setProperty("DomainID", "22");
        prop.setProperty("SubDomainID", "2");
        prop.setProperty("YearStart", "2001");
        prop.setProperty("YearEnd", "2010");
        prop.setProperty("StartIdx", startIdx + "");
        prop.setProperty("EndIdx", endIdx + "");

        String url_org = "http://academic.research.microsoft.com/json.svc/search";
        String url_str = generateURL(url_org, prop);
        URL url = new URL(url_str);
        URLConnection yc = url.openConnection();
        BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));
        String inputLine;
        while ((inputLine = in.readLine()) != null) {
            System.out.println(inputLine);
        }
        in.close();
    } catch (MalformedURLException ex) {
        Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:com.clavain.alerts.Methods.java

public static boolean sendTTSMessage(String message, String mobile_nr) {
    boolean retval = false;

    try {/*from  www .  j a v a  2  s  .  c  om*/
        if (p.getProperty("tts.provider").equals("smsflatrate")) {
            String key = p.getProperty("smsflatrate.key");
            String gw = p.getProperty("smsflatrate.ttsgw");

            String msg = URLEncoder.encode(message);
            URL url = new URL("http://smsflatrate.net/schnittstelle.php?key=" + key + "&to=" + mobile_nr
                    + "&voice=Dave&repeat=2&rate=1&type=" + gw + "&text=" + msg);
            URLConnection conn = url.openConnection();
            // open the stream and put it into BufferedReader
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String inputLine;
            String resp = "";
            while ((inputLine = br.readLine()) != null) {
                resp = inputLine;
            }
            //conn.getContent();      
            if (resp.trim().equals("100")) {
                retval = true;
            }
        } else if (p.getProperty("tts.provider").equals("script")) {
            List<String> commands = new ArrayList<String>();
            // add global timeout script
            commands.add(p.getProperty("tts.script"));
            commands.add(mobile_nr);
            commands.add(message);
            ProcessBuilder pb = new ProcessBuilder(commands).redirectErrorStream(true);
            logger.info("tts.script - Running: " + commands);
            Process p = pb.start();
            Integer rv = p.waitFor();

        }
    } catch (Exception ex) {
        retval = false;
        logger.error("sendTTSMessage Error: " + ex.getLocalizedMessage());
    }
    return retval;
}

From source file:net.pms.configuration.DownloadPlugins.java

public static ArrayList<DownloadPlugins> downloadList() {
    ArrayList<DownloadPlugins> res = new ArrayList<>();

    if (!configuration.getExternalNetwork()) {
        // Do not try to get the plugin list if there is no
        // external network.
        return res;
    }//  ww  w .  ja va2  s .  c  o  m

    try {
        URL u = new URL(PLUGIN_LIST_URL);
        URLConnection connection = u.openConnection();
        connection.setConnectTimeout(5000);
        connection.setReadTimeout(5000);
        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        parse_list(res, in, false);
        File test = new File(configuration.getPluginDirectory() + File.separator + PLUGIN_TEST_FILE);
        if (test.exists()) {
            in = new BufferedReader(new InputStreamReader(new FileInputStream(test)));
            parse_list(res, in, true);
        }
    } catch (IOException e) {
    }
    return res;
}

From source file:com.feathercoin.wallet.feathercoin.ExchangeRatesProvider.java

private static Map<String, ExchangeRate> getFeathercoinCharts() {
    final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>();
    // Keep the BTC rate around for a bit
    Double btcRate = 0.0;//w  w w . ja va2s  . c  o  m
    try {
        /*          String currencies[] = {"USD", "BTC", "RUR"};
                    String urls[] = {"https://btc-e.com/api/2/ftc_btc/ticker", "https://btc-e.com/api/2/10/ticker", "https://btc-e.com/api/2/ltc_rur/ticker"};
                    for(int i = 0; i < currencies.length; ++i) {
        final String currencyCode = currencies[i];
        final URL URL = new URL(urls[i]);
        final URLConnection connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        final StringBuilder content = new StringBuilder();
                
        Reader reader = null;
        try
        {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            String euros = String.format("%.4f", avg);
            // Fix things like 3,1250
            euros = euros.replace(",", ".");
            rates.put(currencyCode, new ExchangeRate(currencyCode, Utils.toNanoCoins(euros), URL.getHost()));
            if(currencyCode.equalsIgnoreCase("BTC")) btcRate = avg;
        }
        finally
        {
            if (reader != null)
                reader.close();
        }
                    }*/
        // Handle FTC/USD special since we have to do maths
        URL URL = null;
        try {
            URL = new URL("https://btc-e.com/api/2/ftc_btc/ticker");
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        URLConnection connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        StringBuilder content = new StringBuilder();

        Reader reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is feathercoins priced in bitcoins
            btcRate = avg;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("BTC", new ExchangeRate("BTC", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        // Handle FTC/USD special since we have to do maths
        URL = null;
        URL = new URL("https://btc-e.com/api/2/btc_usd/ticker");
        connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        content = new StringBuilder();

        reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is bitcoins priced in dollars.  We want FTC!
            avg *= btcRate;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("USD", new ExchangeRate("USD", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        // Handle FTC/BTC special since we have to do maths
        URL = new URL("https://btc-e.com/api/2/btc_eur/ticker");
        connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        content = new StringBuilder();

        reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is bitcoins priced in euros.  We want FTC!
            avg *= btcRate;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("EUR", new ExchangeRate("EUR", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        return rates;
    } catch (final IOException x) {
        x.printStackTrace();
    } catch (final JSONException x) {
        x.printStackTrace();
    }

    return null;
}

From source file:com.impetus.kundera.loader.PersistenceXMLLoader.java

/**
 * Reads the persistence xml content into an object graph and validates it
 * against the related xsd schema.//from   w w w . j  av a 2 s . c  om
 * 
 * @param pathToPersistenceXml
 *            path to the persistence.xml file
 * @return parsed persistence xml as object graph
 * @throws InvalidConfigurationException
 *             if the file could not be parsed or is not valid against the
 *             schema
 */
private static Document getDocument(URL pathToPersistenceXml) throws InvalidConfigurationException {
    InputStream is = null;
    Document xmlRootNode = null;

    try {
        if (pathToPersistenceXml != null) {
            URLConnection conn = pathToPersistenceXml.openConnection();
            conn.setUseCaches(false); // avoid JAR locking on Windows and
                                      // Tomcat.
            is = conn.getInputStream();
        }

        if (is == null) {
            throw new IOException("Failed to obtain InputStream from url: " + pathToPersistenceXml);
        }

        xmlRootNode = parseDocument(is);
        validateDocumentAgainstSchema(xmlRootNode);
    } catch (IOException e) {
        throw new InvalidConfigurationException(e);
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException ex) {
                log.warn("Input stream could not be closed after parsing persistence.xml, caused by: {}", ex);
            }
        }
    }

    return xmlRootNode;
}

From source file:de.schildbach.wallet.worldcoin.ExchangeRatesProvider.java

private static Map<String, ExchangeRate> getworldcoinCharts() {
    final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>();
    // Keep the BTC rate around for a bit
    Double btcRate = 0.0;//from ww  w  . j  a  v a 2s.  c o m
    try {
        /*          String currencies[] = {"USD", "BTC", "RUR"};
                    String urls[] = {"https://btc-e.com/api/2/ftc_btc/ticker", "https://btc-e.com/api/2/10/ticker", "https://btc-e.com/api/2/ltc_rur/ticker"};
                    for(int i = 0; i < currencies.length; ++i) {
        final String currencyCode = currencies[i];
        final URL URL = new URL(urls[i]);
        final URLConnection connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        final StringBuilder content = new StringBuilder();
                
        Reader reader = null;
        try
        {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            String euros = String.format("%.4f", avg);
            // Fix things like 3,1250
            euros = euros.replace(",", ".");
            rates.put(currencyCode, new ExchangeRate(currencyCode, Utils.toNanoCoins(euros), URL.getHost()));
            if(currencyCode.equalsIgnoreCase("BTC")) btcRate = avg;
        }
        finally
        {
            if (reader != null)
                reader.close();
        }
                    }*/
        // Handle WDC/USD special since we have to do maths
        URL URL = null;
        try {
            URL = new URL("https://btc-e.com/api/2/ftc_btc/ticker");
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        URLConnection connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        StringBuilder content = new StringBuilder();

        Reader reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is worldcoins priced in bitcoins
            btcRate = avg;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("BTC", new ExchangeRate("BTC", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        // Handle WDC/USD special since we have to do maths
        URL = null;
        URL = new URL("https://btc-e.com/api/2/btc_usd/ticker");
        connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        content = new StringBuilder();

        reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is bitcoins priced in dollars.  We want WDC!
            avg *= btcRate;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("USD", new ExchangeRate("USD", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        // Handle WDC/BTC special since we have to do maths
        URL = new URL("https://btc-e.com/api/2/btc_eur/ticker");
        connection = URL.openConnection();
        connection.setConnectTimeout(TIMEOUT_MS);
        connection.setReadTimeout(TIMEOUT_MS);
        connection.connect();
        content = new StringBuilder();

        reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            IOUtils.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            JSONObject ticker = head.getJSONObject("ticker");
            Double avg = ticker.getDouble("avg");
            // This is bitcoins priced in euros.  We want FTC!
            avg *= btcRate;
            String s_avg = String.format("%.4f", avg).replace(',', '.');
            rates.put("EUR", new ExchangeRate("EUR", Utils.toNanoCoins(s_avg), URL.getHost()));
        } finally {
            if (reader != null)
                reader.close();
        }
        return rates;
    } catch (final IOException x) {
        x.printStackTrace();
    } catch (final JSONException x) {
        x.printStackTrace();
    }

    return null;
}

From source file:io.bitsquare.common.util.Utilities.java

public static String readTextFileFromServer(String url, String userAgent) throws IOException {
    URLConnection connection = URI.create(url).toURL().openConnection();
    connection.setDoOutput(true);//from   w  ww.  jav a  2  s .  c  o  m
    connection.setUseCaches(false);
    connection.setConnectTimeout((int) TimeUnit.SECONDS.toMillis(10));
    connection.addRequestProperty("User-Agent", userAgent);
    connection.connect();
    try (InputStream inputStream = connection.getInputStream()) {
        return CharStreams.toString(new InputStreamReader(inputStream, Charsets.UTF_8));
    } catch (IOException e) {
        e.printStackTrace();
        throw e;
    }
}

From source file:com.ibuildapp.romanblack.CataloguePlugin.utils.Utils.java

/**
 * download file url and save it//w  w  w.ja  va  2 s .  co m
 *
 * @param url
 */
public static String downloadFile(String url) {
    int BYTE_ARRAY_SIZE = 1024;
    int CONNECTION_TIMEOUT = 30000;
    int READ_TIMEOUT = 30000;

    // downloading cover image and saving it into file
    try {
        URL imageUrl = new URL(URLDecoder.decode(url));
        URLConnection conn = imageUrl.openConnection();
        conn.setConnectTimeout(CONNECTION_TIMEOUT);
        conn.setReadTimeout(READ_TIMEOUT);
        BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());

        File resFile = new File(
                Statics.moduleCachePath + File.separator + com.appbuilder.sdk.android.Utils.md5(url));
        if (!resFile.exists()) {
            resFile.createNewFile();
        }

        FileOutputStream fos = new FileOutputStream(resFile);
        int current = 0;
        byte[] buf = new byte[BYTE_ARRAY_SIZE];
        Arrays.fill(buf, (byte) 0);
        while ((current = bis.read(buf, 0, BYTE_ARRAY_SIZE)) != -1) {
            fos.write(buf, 0, current);
            Arrays.fill(buf, (byte) 0);
        }

        bis.close();
        fos.flush();
        fos.close();
        Log.d("", "");
        return resFile.getAbsolutePath();
    } catch (SocketTimeoutException e) {
        return null;
    } catch (IllegalArgumentException e) {
        return null;
    } catch (Exception e) {
        return null;
    }
}