Example usage for java.io Reader close

Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream and releases any system resources associated with it.

Usage

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

private static Map<String, ExchangeRate> getElysiumCharts() {
    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  va2 s . co m*/
    try {
        String currencies[] = { "USD", "BTC", "RUR" };
        String urls[] = { "https://btc-e.com/api/2/14/ticker", "https://btc-e.com/api/2/10/ticker",
                "https://btc-e.com/api/2/elsm_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 ELSM/EUR special since we have to do maths
        final URL URL = new URL("https://btc-e.com/api/2/btc_eur/ticker");
        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");
            // This is elysiums priced in euros.  We want ELSM!
            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:edu.cornell.mannlib.vitro.webapp.config.RevisionInfoSetup.java

private void closeReader(Reader reader) {
    if (reader != null) {
        try {//  w  w  w  . ja  v a  2  s  .  c o  m
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

From source file:name.martingeisse.webide.features.java.compiler.classpath.ReadOnlyRegularFileObject.java

@Override
public CharSequence getCharContent(final boolean ignoreEncodingErrors) throws IOException {
    final Reader r = openReader(ignoreEncodingErrors);
    final String content = IOUtils.toString(r);
    r.close();
    return content;
}

From source file:name.martingeisse.webide.features.java.compiler.classpath.JarFileObject.java

@Override
public CharSequence getCharContent(final boolean ignoreEncodingErrors) throws IOException {
    Reader r = openReader(ignoreEncodingErrors);
    String content = IOUtils.toString(r);
    r.close();
    return content;
}

From source file:com.cloudera.cdk.morphline.metrics.servlets.HttpMetricsMorphlineTest.java

private String httpGet(int port, String path) throws IOException {
    URL url = new URL("http://localhost:" + port + path);
    URLConnection conn = url.openConnection();
    Reader reader = new InputStreamReader(conn.getInputStream());
    String response = CharStreams.toString(reader);
    reader.close();
    return response;
}

From source file:co.id.app.sys.util.StringUtils.java

/**
 * Close the given reader and ignore any exceptions thrown.
 *
 * @param reader the reader to close./*from   w w  w.j a v a2s  .co  m*/
 */
public static void close(Reader reader) {
    if (reader != null) {
        try {
            reader.close();
        } catch (IOException ioe) {
            // Ignore
        }
    }
}

From source file:UnpackedJarFile.java

public static void close(Reader thing) {
    if (thing != null) {
        try {//  ww  w .  j ava  2 s .co  m
            thing.close();
        } catch (Exception ignored) {
        }
    }
}

From source file:com.bstek.dorado.core.xml.XercesXmlDocumentBuilder.java

public Document loadDocument(Resource resource, String charset) throws Exception {
    if (logger.isDebugEnabled()) {
        logger.debug("Loading XML from " + resource);
    }/*from   www  . jav  a  2  s  .com*/

    if (StringUtils.isEmpty(charset)) {
        charset = Constants.DEFAULT_CHARSET;
    }

    InputStream in = resource.getInputStream();
    Reader reader = new InputStreamReader(in, charset);
    try {
        return getDocumentBuilder().parse(new InputSource(reader));
    } finally {
        reader.close();
        in.close();
    }
}

From source file:com.google.mr4c.content.AbstractContentFactory.java

public void readContent(URI uri, Writer writer) throws IOException {
    Reader reader = readContentAsReader(uri);
    try {/*  w  ww .ja v a2s .  c  o m*/
        IOUtils.copy(reader, writer);
    } finally {
        reader.close();
    }
}

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

private static Object getCoinValueBTC_BTER() {
    Date date = new Date();
    long now = date.getTime();

    //final Map<String, ExchangeRate> rates = new TreeMap<String, ExchangeRate>();
    // Keep the LTC rate around for a bit
    Double btcRate = 0.0;//  w w w .  j  a  v  a2 s.  c om
    String currency = CoinDefinition.cryptsyMarketCurrency;
    String url = "https://bittrex.com/api/v1.1/public/getticker?market=BTC-CANN";

    HttpURLConnection connection = null;
    try {
        // final String currencyCode = currencies[i];
        final URL URL_bter = new URL(url);
        connection = (HttpURLConnection) URL_bter.openConnection();
        connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS * 2);
        connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS * 2);
        connection.connect();

        final StringBuilder content = new StringBuilder();

        Reader reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024));
            Io.copy(reader, content);
            final JSONObject head = new JSONObject(content.toString());
            String result = head.getString("result");
            if (result.equals("true")) {

                Double averageTrade = head.getDouble("Bid");

                if (currency.equalsIgnoreCase("BTC"))
                    btcRate = averageTrade;
            }

        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (final IOException x) {
                    // swallow
                }
            }
        }
        return btcRate;
    } catch (final IOException x) {
        x.printStackTrace();
    } catch (final JSONException x) {
        x.printStackTrace();
    } finally {
        if (connection != null)
            connection.disconnect();
    }

    return null;
}