Example usage for java.net URLConnection getInputStream

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:com.ebay.jetstream.application.dataflows.VisualDataFlow.java

public ByteBuffer getAsByteArray(URL url) throws IOException {
    URLConnection connection = url.openConnection();
    InputStream in = connection.getInputStream();
    int contentLength = connection.getContentLength();
    ByteArrayOutputStream tmpOut;

    if (contentLength != -1) {
        tmpOut = new ByteArrayOutputStream(contentLength);
    } else {//from  w  w  w .j av  a 2 s.co m
        tmpOut = new ByteArrayOutputStream(16384);
    }

    byte[] buf = new byte[BUF];
    while (true) {
        int len = in.read(buf);
        if (len == -1) {
            break;
        }
        tmpOut.write(buf, 0, len);
    }
    in.close();
    tmpOut.close();
    byte[] array = tmpOut.toByteArray();
    return ByteBuffer.wrap(array);
}

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From source file:ee.ria.xroad.common.conf.globalconf.ConfigurationLocation.java

/**
 * @return the input stream acquired by connecting to the download url.
 * @throws Exception if an error occurs//from  w ww.  ja  v  a  2s.c o m
 */
public InputStream getInputStream() throws Exception {
    try {
        URLConnection connection = getDownloadURLConnection(downloadURL);
        return connection.getInputStream();
    } catch (IOException e) {
        throw new CodedException(X_HTTP_ERROR, e);
    }
}

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From source file:com.nominanuda.web.mvc.URLStreamer.java

public HttpResponse handle(HttpRequest request) throws IOException {
    URL url = getURL(request);//from  w  w w .j  a va2  s .c om
    URLConnection conn = url.openConnection();
    conn.connect();
    int len = conn.getContentLength();
    InputStream is = conn.getInputStream();
    String ce = conn.getContentEncoding();
    String ct = determineContentType(url, conn);
    if (len < 0) {
        byte[] content = ioHelper.readAndClose(is);
        is = new ByteArrayInputStream(content);
        len = content.length;
    }
    StatusLine statusline = httpCoreHelper.statusLine(SC_OK);
    HttpResponse resp = new BasicHttpResponse(statusline);
    resp.setEntity(new InputStreamEntity(is, len));
    httpCoreHelper.setContentType(resp, ct);
    httpCoreHelper.setContentLength(resp, len);//TODO not needed ??
    if (ce != null) {
        httpCoreHelper.setContentEncoding(resp, ce);
    }
    return resp;
}

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From source file:com.gammalabs.wifianalyzer.vendor.model.RemoteCall.java

@Override
protected RemoteResult doInBackground(String... params) {
    if (params == null || params.length < 1 || StringUtils.isBlank(params[0])) {
        return RemoteResult.EMPTY;
    }/*  ww  w  .j  a v  a 2s .co  m*/
    String macAddress = params[0];
    String request = String.format(MAC_VENDOR_LOOKUP, macAddress.substring(0, macAddress.length() / 2));
    BufferedReader bufferedReader = null;
    try {
        URLConnection urlConnection = getURLConnection(request);
        bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
        StringBuilder response = new StringBuilder();
        String line;
        while ((line = bufferedReader.readLine()) != null) {
            response.append(line);
        }
        String vendorName = VendorNameUtils.cleanVendorName(response.toString().trim());
        if (StringUtils.isNotBlank(vendorName)) {
            return new RemoteResult(macAddress, vendorName);
        }
        return RemoteResult.EMPTY;
    } catch (Exception e) {
        return RemoteResult.EMPTY;
    } finally {
        if (bufferedReader != null) {
            try {
                bufferedReader.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
}

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

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

    if ((now < (lastBitcoinValueCheck + 10 * 60)) && lastBitcoinValue > 0.0)
        return lastBitcoinValue;

    //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 va2s  . c  o m*/
    String currencyCryptsy = "BTC";
    String urlCryptsy2 = "http://pubapi.cryptsy.com/api.php?method=marketdata";
    String urlCryptsy = "http://pubapi.cryptsy.com/api.php?method=singlemarketdata&marketid=30";

    try {
        // final String currencyCode = currencies[i];
        final URL URLCryptsy = new URL(urlCryptsy);
        final URLConnection connectionCryptsy = URLCryptsy.openConnection();
        connectionCryptsy.setConnectTimeout(TIMEOUT_MS * 2);
        connectionCryptsy.setReadTimeout(TIMEOUT_MS * 2);
        connectionCryptsy.connect();

        final StringBuilder contentCryptsy = new StringBuilder();

        Reader reader = null;
        try {
            reader = new InputStreamReader(new BufferedInputStream(connectionCryptsy.getInputStream(), 1024));
            IOUtils.copy(reader, contentCryptsy);
            final JSONObject head = new JSONObject(contentCryptsy.toString());
            JSONObject returnObject = head.getJSONObject("return");
            JSONObject markets = returnObject.getJSONObject("markets");
            JSONObject GLD = markets.getJSONObject("GLD");

            JSONArray recenttrades = GLD.getJSONArray("recenttrades");

            double btcTraded = 0.0;
            double gldTraded = 0.0;

            for (int i = 0; i < recenttrades.length(); ++i) {
                JSONObject trade = (JSONObject) recenttrades.get(i);

                btcTraded += trade.getDouble("total");
                gldTraded += trade.getDouble("quantity");

            }

            Double averageTrade = btcTraded / gldTraded;

            //Double lastTrade = GLD.getDouble("lasttradeprice");

            //String euros = String.format("%.7f", averageTrade);
            // Fix things like 3,1250
            //euros = euros.replace(",", ".");
            //rates.put(currencyCryptsy, new ExchangeRate(currencyCryptsy, Utils.toNanoCoins(euros), URLCryptsy.getHost()));
            if (currencyCryptsy.equalsIgnoreCase("BTC"))
                btcRate = averageTrade;

            lastBitcoinValue = btcRate;
            lastBitcoinValueCheck = now;
        } finally {
            if (reader != null)
                reader.close();
        }
        return btcRate;
    } catch (final IOException x) {
        x.printStackTrace();
    } catch (final JSONException x) {
        x.printStackTrace();
    }

    return null;
}

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From source file:com.momoplan.pet.framework.manager.controller.GetServerController.java

@RequestMapping("/best.html")
public void best(String license, HttpServletResponse response) throws Exception {
    long s = System.currentTimeMillis();
    response.setCharacterEncoding("UTF-8");
    String license_key = "license:" + license;
    logger.debug("license_key=" + license_key);
    //TODO check license
    String license_info = Config.publicConfig.get(license_key);
    logger.debug("license_info=" + license_info);
    logger.debug("nodeServiceUrl=" + nodeServiceUrl);
    URL u = new URL(nodeServiceUrl);
    URLConnection conn = u.openConnection();
    InputStream is = conn.getInputStream();
    byte[] buff = new byte[4096];
    int t = 0;// www  .  j av  a  2  s .  c  om
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    while ((t = is.read(buff)) != -1) {
        bos.write(buff, 0, t);
    }
    String nodes = new String(bos.toByteArray());
    is.close();
    bos.close();

    JSONObject json = new JSONObject(nodes);
    boolean success = json.getBoolean("success");

    JSONObject rtnJson = new JSONObject();
    rtnJson.put("success", success);
    if (success) {
        try {
            JSONArray arr = json.getJSONArray("entity");
            int len = arr.length();
            Map<String, Object> tmp = new HashMap<String, Object>();
            tmp.put("node", "");
            tmp.put("totalCount", Integer.MAX_VALUE);
            for (int i = 0; i < len; i++) {
                JSONObject node = arr.getJSONObject(i);
                Integer c = node.getInt("totalCount");
                if (c < (Integer) tmp.get("totalCount")) {
                    tmp.put("node", node.getString("node"));
                    tmp.put("totalCount", c);
                }
            }
            logger.debug(tmp.toString());
            String nodeKey = (String) tmp.get("node");
            String ipHost = Config.publicConfig.get(nodeKey);
            String[] hostArr = ipHost.split(":");
            JSONObject entity = new JSONObject();
            entity.put("ip", hostArr[0]);
            entity.put("port", hostArr[1]);
            rtnJson.put("entity", entity);
        } catch (Exception e) {
            logger.error("XXXXXX", e);
            rtnJson.put("entity", defNode);
        }
    } else {
        rtnJson.put("entity", json.get("entity"));
    }
    logger.debug(nodes);
    long e = System.currentTimeMillis();
    logger.info("license_key=" + license_key + ";license_info=" + license_info + ";rtn=" + rtnJson.toString()
            + " -- " + (e - s) + "ms");
    response.getWriter().write(rtnJson.toString());
}

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From source file:com.puppycrawl.tools.checkstyle.api.LocalizedMessageTest.java

@Test
public void testBundleReloadUrlNotNull() throws IOException {

    ClassLoader classloader = mock(ClassLoader.class);
    final URLConnection mockConnection = Mockito.mock(URLConnection.class);
    when(mockConnection.getInputStream()).thenReturn(new ByteArrayInputStream(EMPTY_BYTE_ARRAY));

    URL url = getMockUrl(mockConnection);
    String resource = "com/puppycrawl/tools/checkstyle/checks/coding/messages_en.properties";
    when(classloader.getResource(resource)).thenReturn(url);

    LocalizedMessage.UTF8Control control = new LocalizedMessage.UTF8Control();
    control.newBundle("com.puppycrawl.tools.checkstyle.checks.coding.messages", Locale.ENGLISH, "java.class",
            classloader, true);/*from w  ww. j a  v a2  s.c o  m*/
}

---

From source file:mashapeautoloader.MashapeAutoloader.java

/**
 * @param libraryName/*from  w  w  w .ja  v  a2 s  .  co m*/
 *
 * Returns false if something wrong, otherwise true (API interface
 * already exists or just well downloaded)
 */
private static boolean downloadLib(String libraryName) {
    URL url;
    URLConnection urlConn;

    // check (or make) for apiStore directory
    File apiStoreDir = new File(apiStore);
    if (!apiStoreDir.isDirectory())
        apiStoreDir.mkdir();

    String javaFilePath = apiStore + libraryName + ".java";
    File javaFile = new File(javaFilePath);

    // check if the API interface exists
    if (javaFile.exists())
        return true;
    try {
        // download the API interface's archive
        url = new URL(MASHAPE_DOWNLOAD_ROOT + libraryName);
        urlConn = url.openConnection();

        HttpURLConnection httpConn = (HttpURLConnection) urlConn;
        httpConn.setInstanceFollowRedirects(false);

        urlConn.setDoInput(true);
        urlConn.setDoOutput(false);
        urlConn.setUseCaches(false);

        // extract the archive stream
        ZipInputStream zip = new ZipInputStream(urlConn.getInputStream());
        String expectedEntryName = libraryName + ".java";
        while (true) {
            ZipEntry nextEntry = zip.getNextEntry();
            if (nextEntry == null)
                return false;

            String name = nextEntry.getName();
            if (name.equals(expectedEntryName)) {
                // save .java locally
                FileOutputStream javaFileStream = new FileOutputStream(javaFilePath);
                byte[] buf = new byte[1024];
                int n;
                while ((n = zip.read(buf, 0, 1024)) > -1)
                    javaFileStream.write(buf, 0, n);

                // compile it into .class file
                JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
                int result = compiler.run(null, null, null, javaFilePath);
                System.out.println(result);
                return result == 0;
            }
        }
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

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From source file:net.sf.zekr.engine.network.NetworkController.java

public InputStream openSteam(String uri, int timeout) throws URISyntaxException, IOException {
    URL url = new URL(uri);
    URLConnection conn = url.openConnection(getProxy(uri));
    conn.setReadTimeout(timeout);//from  w w w.j  ava  2s.  co  m
    conn.setUseCaches(true);
    return conn.getInputStream();
}

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From source file:com.datos.vfs.provider.url.UrlFileObject.java

/**
 * Determines the type of the file.// w  w  w.  j  a  v  a 2  s.  c  o  m
 */
@Override
protected FileType doGetType() throws Exception {
    try {
        // Attempt to connect & check status
        final URLConnection conn = url.openConnection();
        final InputStream in = conn.getInputStream();
        try {
            if (conn instanceof HttpURLConnection) {
                final int status = ((HttpURLConnection) conn).getResponseCode();
                // 200 is good, maybe add more later...
                if (HttpURLConnection.HTTP_OK != status) {
                    return FileType.IMAGINARY;
                }
            }

            return FileType.FILE;
        } finally {
            in.close();
        }
    } catch (final FileNotFoundException e) {
        return FileType.IMAGINARY;
    }
}

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