Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

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Introduction

In this page you can find the example usage for java.net HttpURLConnection connect.

Prototype

public abstract void connect() throws IOException;

Source Link

Document

Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.

Usage

From source file:org.apache.hadoop.mapreduce.v2.app.webapp.TestAMWebApp.java

@Test
public void testMRWebAppRedirection() throws Exception {

    String[] schemePrefix = { WebAppUtils.HTTP_PREFIX, WebAppUtils.HTTPS_PREFIX };
    for (String scheme : schemePrefix) {
        MRApp app = new MRApp(2, 2, true, this.getClass().getName(), true) {
            @Override// w w w . j  a  v  a2s  .  c  o m
            protected ClientService createClientService(AppContext context) {
                return new MRClientService(context);
            }
        };
        Configuration conf = new Configuration();
        conf.set(YarnConfiguration.PROXY_ADDRESS, "9.9.9.9");
        conf.set(YarnConfiguration.YARN_HTTP_POLICY_KEY,
                scheme.equals(WebAppUtils.HTTPS_PREFIX) ? Policy.HTTPS_ONLY.name() : Policy.HTTP_ONLY.name());
        webProxyBase = "/proxy/" + app.getAppID();
        conf.set("hadoop.http.filter.initializers", TestAMFilterInitializer.class.getName());
        Job job = app.submit(conf);
        String hostPort = NetUtils
                .getHostPortString(((MRClientService) app.getClientService()).getWebApp().getListenerAddress());
        URL httpUrl = new URL("http://" + hostPort + "/mapreduce");

        HttpURLConnection conn = (HttpURLConnection) httpUrl.openConnection();
        conn.setInstanceFollowRedirects(false);
        conn.connect();
        String expectedURL = scheme + conf.get(YarnConfiguration.PROXY_ADDRESS)
                + ProxyUriUtils.getPath(app.getAppID(), "/mapreduce");
        Assert.assertEquals(expectedURL, conn.getHeaderField(HttpHeaders.LOCATION));
        Assert.assertEquals(HttpStatus.SC_MOVED_TEMPORARILY, conn.getResponseCode());
        app.waitForState(job, JobState.SUCCEEDED);
        app.verifyCompleted();
    }
}

From source file:com.mp3tunes.android.player.RemoteAlbumArtHandler.java

private Bitmap getArtwork(Track t) {
    String urlstr = null;//w ww  .  j av  a  2s  .  c o  m
    InputStream is = null;
    String file = getArtFile(t);

    if (file != null) {
        try {
            is = new FileInputStream(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    } else {
        try {
            urlstr = getArtUrl(t);
            URL url = new URL(urlstr);

            HttpURLConnection c = (HttpURLConnection) url.openConnection();
            c.setDoInput(true);
            c.connect();
            is = c.getInputStream();
        } catch (MalformedURLException e) {
            Log.d("RemoteImageHandler", "RemoteImageWorker passed invalid URL: " + urlstr);
        } catch (IOException e) {
        }

    }
    if (is == null)
        return null;
    Bitmap img;
    img = BitmapFactory.decodeStream(is);
    return img;
}

From source file:com.screenslicer.common.CommonUtil.java

public static void postQuickly(String uri, String recipient, String postData) {
    HttpURLConnection conn = null;
    try {//from ww w. j  av a2 s  .  c  om
        postData = Crypto.encode(postData, recipient);
        conn = (HttpURLConnection) new URL(uri).openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setRequestMethod("POST");
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(5000);
        conn.setRequestProperty("Content-Type", "application/json");
        byte[] bytes = postData.getBytes("utf-8");
        conn.setRequestProperty("Content-Length", String.valueOf(bytes.length));
        OutputStream os = conn.getOutputStream();
        os.write(bytes);
        conn.connect();
        Crypto.decode(IOUtils.toString(conn.getInputStream(), "utf-8"), recipient);
    } catch (Exception e) {
        Log.exception(e);
    }
}

From source file:com.tc.util.io.ServerURL.java

public String getServerVersion(PwProvider pwProvider) throws IOException {
    for (int i = 0; i < 3; i++) {
        HttpURLConnection urlConnection = createSecureConnection(pwProvider);
        try {/*from   ww  w. j ava  2  s  .  c  o m*/
            urlConnection.connect();
            int responseCode = urlConnection.getResponseCode();
            if (responseCode == 200) {
                return urlConnection.getHeaderField(VERSION_HEADER);
            } else {
                logger.info("Failed to retrieve header field, response code : " + responseCode + ", headers :\n"
                        + readHeaderFields(urlConnection) + " body : \n[" + readLines(urlConnection) + "]");
            }
        } finally {
            urlConnection.disconnect();
        }

        logger.info("Retrying connection since response code != 200");
        ThreadUtil.reallySleep(50);
    }

    throw new IOException(
            "Cannot retrieve " + VERSION_HEADER + " header from server url after 3 tries : " + theURL);
}

From source file:it.evilsocket.dsploit.net.GemParser.java

private void fetch() throws JSONException, IOException {
    HttpURLConnection connection = null;
    BufferedReader reader = null;

    try {/*from   w w  w .  j  a v a 2  s  .c  o m*/
        HttpURLConnection.setFollowRedirects(true);
        connection = (HttpURLConnection) (new URL(mUrl)).openConnection();
        connection.connect();
        int ret = connection.getResponseCode();
        if (ret != 200)
            throw new IOException("cannot retrieve remote json: " + ret);
        reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;

        while ((line = reader.readLine()) != null)
            sb.append(line);
        JSONArray jGems = new JSONArray(sb.toString());
        mGems = new RemoteGemInfo[jGems.length()];
        for (int i = 0; i < jGems.length(); i++) {
            JSONObject gem = jGems.getJSONObject(i);
            mGems[i] = new RemoteGemInfo(gem.getString("name"), gem.getString("version"),
                    (new DateTime(gem.getString("uploaded"))).toDate());
        }
    } finally {
        if (reader != null)
            reader.close();
        if (connection != null)
            connection.disconnect();
    }
}

From source file:fr.ybonnel.simpleweb4j.util.SimpleWebTestUtil.java

public UrlResponse doMethod(String requestMethod, String path, String body) throws Exception {
    URL url = new URL("http://localhost:" + port + path);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(requestMethod);

    if (body != null) {
        connection.setDoOutput(true);/* w  w  w.  j ava  2s.co m*/
        connection.getOutputStream().write(body.getBytes());
    }

    connection.connect();

    UrlResponse response = new UrlResponse();
    response.status = connection.getResponseCode();
    response.headers = connection.getHeaderFields();
    response.contentType = connection.getContentType();

    if (response.status >= 400) {
        if (connection.getErrorStream() != null) {
            response.body = IOUtils.toString(connection.getErrorStream());
        }
    } else {
        if (connection.getInputStream() != null) {
            response.body = IOUtils.toString(connection.getInputStream());
        }
    }
    return response;
}

From source file:myClass_Main.java

/**
 *
 * @param request//  w  w w . j a  v a 2  s  .  c  om
 * @param response
 * @throws ServletException
 * @throws IOException
 */
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    int option = Integer.parseInt(request.getParameter("optionValue"));
    String url;
    // do some processing here...
    // get response writer
    switch (option) {
    case 1: {
        int userValue = Integer.parseInt(request.getParameter("userValue"));
        String htmlres = "";
        // build HTML code
        for (int i = 0; i < userValue; i++) {
            htmlres = htmlres
                    + "<input type=\"text\" id=\"inputValue\" name=\"inputValue\" class=\"form-group form-control\" placeholder=\"Nombre de Pais "
                    + (i + 1) + "\" required autofocus>";
        }
        request.setAttribute("htmlres", htmlres);
        url = "/myPage_core.jsp";
        ServletContext sc = getServletContext();
        RequestDispatcher rd = sc.getRequestDispatcher(url);
        rd.forward(request, response);
    }
        break;
    case 2: {
        String[] input = request.getParameterValues("inputValue");
        String sourceURL = "http://api.myjson.com/bins/vcv1"; //just a string
        // Connect to the URL using java's native library
        URL urlobject = new URL(sourceURL);
        HttpURLConnection conection = (HttpURLConnection) urlobject.openConnection();
        conection.connect();
        // Convert to a JSON object to print data
        String[][] contry_values = new String[10][input.length];
        String zipcode = null;
        JSONParser jp = new JSONParser(); //from gson
        JSONObject root = null;
        JSONArray root_array = null;
        try {
            root = (JSONObject) jp.parse(new InputStreamReader(conection.getInputStream())); //Convert the input stream to a json element
        } catch (ParseException ex) {
            Logger.getLogger(myClass_Main.class.getName()).log(Level.SEVERE, null, ex);
        }
        boolean firstName = (boolean) root.containsKey("countries");
        root = (JSONObject) root.get("countries");
        root_array = (JSONArray) root.get("country");
        //Iterator j = root_array.iterator();
        for (int i = 0; i < input.length; i++) {
            Iterator j = root_array.iterator();
            while (j.hasNext()) {
                JSONObject inner = (JSONObject) j.next();
                if (inner.containsValue(input[i])) {
                    contry_values[0][i] = (String) inner.get("isoNumeric");
                    contry_values[1][i] = (String) inner.get("countryName");
                    contry_values[2][i] = (String) inner.get("continentName");
                    contry_values[3][i] = (String) inner.get("capital");
                    contry_values[4][i] = (String) inner.get("languages");
                    if (contry_values[4][i].length() > 11) {
                        String strOut = contry_values[4][i];
                        String trimedstring = strOut.substring(0, 10) + "...";// count start in 0 and 8 is excluded
                        contry_values[4][i] = trimedstring;
                    }
                    contry_values[5][i] = (String) inner.get("population");
                    contry_values[6][i] = (String) inner.get("areaInSqKm");
                    contry_values[7][i] = (String) inner.get("countryCode");
                    contry_values[8][i] = "https://es.wikipedia.org/wiki/"
                            + ((String) inner.get("countryName"));
                }
            }
        }
        System.out.println("The first name is: " + zipcode);
        request.setAttribute("firstname", zipcode);
        String htmlres = "<table class=\"table\">\n" + "<caption>Datos de Paises</caption>\n" + "<thead>\n"
                + "<tr>\n" + "<th>COD INT.</th>\n" + "<th>AVB.</th>\n" + "<th>Nombre</th>\n"
                + "<th>Continente</th>\n" + "<th>Capital</th>\n" + "<th>Idioma</th>\n" + "<th>Poblacion</th>\n"
                + "<th>Area km2</th>\n" + "<th>Wiki URL</th>\n" + "</tr>\n" + "</thead>\n" + "<tbody>";
        // build HTML code
        for (int h = 0; h < input.length; h++) {
            if ((contry_values[0][h]) != null) {
                htmlres = htmlres + "<tr><th scope=\"row\">" + contry_values[0][h] + "</th>";
                for (int g = 0; g < 9; g++) {
                    if (g != 8) {
                        htmlres = htmlres + "<td>" + contry_values[g][h] + "</td>";
                    } else {
                        htmlres = htmlres + "<td>" + "<a href=\"" + contry_values[g][h]
                                + "\" class=\"btn btn-info\" role=\"button\">" + contry_values[7][h] + "</a>"
                                + "</td>";
                    }
                }
                htmlres = htmlres + "</tr>";
            } else {
                htmlres = htmlres + "<tr><th scope=\"row\">" + "#Er." + h + "</th>";
                htmlres = htmlres + "<td colspan=\"9\">" + "El pais \"" + input[h]
                        + "\" no esta en la BD, verifique que el nombre esta en ingls, e intente de nuevo"
                        + "</td>";
            }
        }
        htmlres = htmlres + "<tr>";
        htmlres = htmlres + "</tbody>\n" + "</table>";
        request.setAttribute("htmlres", htmlres);
        url = "/myPage_res.jsp";
        ServletContext sc = getServletContext();
        RequestDispatcher rd = sc.getRequestDispatcher(url);
        rd.forward(request, response);
    }
        break;
    case 3: {
        url = "/index.jsp";
        ServletContext sc = getServletContext();
        RequestDispatcher rd = sc.getRequestDispatcher(url);
        rd.forward(request, response);
    }
        break;
    default: {
        url = "/index.jsp";
        ServletContext sc = getServletContext();
        RequestDispatcher rd = sc.getRequestDispatcher(url);
        rd.forward(request, response);
    }
        break;
    }
}

From source file:net.ae97.pokebot.extensions.scrolls.ScrollCommand.java

@Override
public void runEvent(CommandEvent event) {
    if (event.getArgs().length == 0) {
        event.respond("Usage: .scroll [name]");
        return;/*w  w  w.j a  v  a2s. c  om*/
    }
    try {
        URL playerURL = new URL(url.replace("{name}", StringUtils.join(event.getArgs(), "%20")));
        List<String> lines = new LinkedList<>();
        HttpURLConnection conn = (HttpURLConnection) playerURL.openConnection();
        conn.setRequestProperty("User-Agent", "PokeBot - " + PokeBot.VERSION);
        conn.connect();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
            String line;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        }

        JsonParser parser = new JsonParser();
        JsonElement element = parser.parse(StringUtils.join(lines, "\n"));
        JsonObject obj = element.getAsJsonObject();

        String result = obj.get("msg").getAsString();
        if (!result.equalsIgnoreCase("success")) {
            event.respond("Scroll not found");
            return;
        }
        JsonObject dataObject = obj.get("data").getAsJsonArray().get(0).getAsJsonObject();

        StringBuilder builder = new StringBuilder();

        builder.append(dataObject.get("name").getAsString()).append(" - ");
        builder.append("Cost: ");
        if (dataObject.get("costgrowth").getAsInt() > 0) {
            builder.append(dataObject.get("costgrowth").getAsInt()).append(" Growth");
        } else if (dataObject.get("costorder").getAsInt() > 0) {
            builder.append(dataObject.get("costorder").getAsInt()).append(" Order");
        } else if (dataObject.get("costenergy").getAsInt() > 0) {
            builder.append(dataObject.get("costenergy").getAsInt()).append(" Energy");
        } else if (dataObject.get("costdecay").getAsInt() > 0) {
            builder.append(dataObject.get("costdecay").getAsInt()).append(" Decay");
        } else {
            builder.append("0");
        }
        builder.append(" - ");
        String kind = dataObject.get("kind").getAsString();
        kind = Character.toUpperCase(kind.charAt(0)) + kind.substring(1).toLowerCase();
        builder.append("Kind: ").append(kind).append(" - ");
        Rarity rarity = Rarity.get(dataObject.get("rarity").getAsInt());
        String rarityString = rarity.name().toLowerCase();
        rarityString = Character.toUpperCase(rarityString.charAt(0)) + rarityString.substring(1);
        builder.append("Rarity: ").append(rarityString);

        if (kind.equalsIgnoreCase("creature") || kind.equalsIgnoreCase("structure")) {
            builder.append(" - ");
            builder.append("Types: ").append(dataObject.get("types").getAsString()).append(" - ");
            builder.append("Attack: ").append(dataObject.get("ap").getAsInt()).append(" - ");
            builder.append("Cooldown: ").append(dataObject.get("ac").getAsInt()).append(" - ");
            builder.append("Health: ").append(dataObject.get("hp").getAsInt());
        }

        builder.append("\n");
        builder.append("Description: '").append(dataObject.get("description").getAsString()).append("' - ");
        builder.append("Flavor: '").append(dataObject.get("flavor").getAsString()).append("'");

        String[] message = builder.toString().split("\n");
        for (String msg : message) {
            event.respond("" + msg);
        }

    } catch (IOException | JsonSyntaxException | IllegalStateException ex) {
        PokeBot.getLogger().log(Level.SEVERE,
                "Error on getting scroll for Scrolls for '" + StringUtils.join(event.getArgs(), " ") + "'", ex);
        event.respond("Error on getting scroll: " + ex.getLocalizedMessage());
    }
}

From source file:net.gcolin.simplerepo.test.AbstractRepoTest.java

protected int getStatus(String url, long lastUpdate) throws IOException {
    HttpURLConnection c = (HttpURLConnection) new URL(url).openConnection();
    try {/*from w  w  w  .  java  2s  .c  om*/
        if (lastUpdate > 0) {
            c.setIfModifiedSince(lastUpdate);
        }
        c.setUseCaches(false);
        c.connect();
        return c.getResponseCode();
    } finally {
        c.disconnect();
    }
}

From source file:net.gcolin.simplerepo.test.AbstractRepoTest.java

protected String getContent(String url, long lastUpdate) throws IOException {
    HttpURLConnection c = (HttpURLConnection) new URL(url).openConnection();
    try {//from   w w  w.j  ava 2  s . c o m
        if (lastUpdate > 0) {
            c.setIfModifiedSince(lastUpdate);
        }
        c.setUseCaches(false);
        c.connect();
        return c.getResponseCode() == HttpURLConnection.HTTP_OK
                ? new String(IOUtils.toByteArray(c.getInputStream()), "utf-8")
                : null;
    } finally {
        c.disconnect();
    }
}