Example usage for java.net HttpURLConnection disconnect

List of usage examples for java.net HttpURLConnection disconnect

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Introduction

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

Prototype

public abstract void disconnect();

Source Link

Document

Indicates that other requests to the server are unlikely in the near future.

Usage

From source file:edu.stanford.muse.launcher.Main.java

private static boolean killRunningServer(String url) throws IOException {
    try {//from   w  w w  . j a  va  2 s  .c om
        // attempt to fetch the page
        // throws a connect exception if the server is not even running
        // so catch it and return false
        String http = url
                + "/exit.jsp?message=Shutdown%20request%20from%20a%20different%20instance%20of%20Muse"; // version num spaces and brackets screw up the URL connection
        System.err.println("Sending a kill request to " + http);
        HttpURLConnection u = (HttpURLConnection) new URL(http).openConnection();
        u.connect();
        if (u.getResponseCode() == 200) {
            u.disconnect();
            return true;
        }
        u.disconnect();
    } catch (ConnectException ce) {
    }
    return false;
}

From source file:com.cyphermessenger.client.SyncRequest.java

public static CypherSession userLogin(String username, byte[] serverPassword, byte[] localPassword)
        throws IOException, APIErrorException {
    String passwordHashEncoded = Utils.BASE64_URL.encode(serverPassword);

    HttpURLConnection conn = doRequest("login", null, new String[] { "username", "password" },
            new String[] { username, passwordHashEncoded });

    if (conn.getResponseCode() != 200) {
        throw new IOException("Server error");
    }/*from  w w  w  .java  2  s .c  o  m*/

    InputStream in = conn.getInputStream();
    JsonNode node = MAPPER.readTree(in);
    conn.disconnect();
    int statusCode = node.get("status").asInt();
    if (statusCode == StatusCode.OK) {
        long userID = node.get("userID").asLong();
        ECKey key;
        try {
            key = Utils.decodeKey(node.get("publicKey").asText(), node.get("privateKey").asText(),
                    localPassword);
        } catch (InvalidCipherTextException ex) {
            throw new RuntimeException(ex);
        }
        long keyTimestamp = node.get("keyTimestamp").asLong();
        key.setTime(keyTimestamp);
        CypherUser newUser = new CypherUser(username, localPassword, serverPassword, userID, key, keyTimestamp);
        String sessionID = node.get("sessionID").asText();
        return new CypherSession(newUser, sessionID);
    } else {
        throw new APIErrorException(statusCode);
    }
}

From source file:cit360.sandbox.BackEndMenu.java

public static final void urltest() {
    URL url;/*from   ww w .ja v a  2s  . c om*/
    HttpURLConnection urlConnection = null;
    try {
        url = new URL("http://marvelcomicsuniverse.com");

        urlConnection = (HttpURLConnection) url.openConnection();

        InputStream in = urlConnection.getInputStream();

        InputStreamReader isw = new InputStreamReader(in);

        int data = isw.read();
        while (data != -1) {
            char current = (char) data;
            data = isw.read();
            System.out.print(current);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            urlConnection.disconnect();
        } catch (Exception e) {
            e.printStackTrace(); //If you want further info on failure...
        }
    }
}

From source file:edu.stanford.epadd.launcher.Main.java

private static boolean killRunningServer(String url) throws IOException {
    try {/* w w  w .  ja v  a  2 s  . c o m*/
        // attempt to fetch the page
        // throws a connect exception if the server is not even running
        // so catch it and return false
        String http = url
                + "/exit.jsp?message=Shutdown%20request%20from%20a%20different%20instance%20of%20ePADD"; // version num spaces and brackets screw up the URL connection
        System.err.println("Sending a kill request to " + http);
        HttpURLConnection u = (HttpURLConnection) new URL(http).openConnection();
        u.connect();
        if (u.getResponseCode() == 200) {
            u.disconnect();
            return true;
        }
        u.disconnect();
    } catch (ConnectException ce) {
    }
    return false;
}

From source file:OCRRestAPI.java

private static void DownloadConvertedFile(String outputFileUrl) throws IOException {
    URL downloadUrl = new URL(outputFileUrl);
    HttpURLConnection downloadConnection = (HttpURLConnection) downloadUrl.openConnection();

    if (downloadConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {

        InputStream inputStream = downloadConnection.getInputStream();

        // opens an output stream to save into file
        FileOutputStream outputStream = new FileOutputStream("C:\\converted_file.doc");

        int bytesRead = -1;
        byte[] buffer = new byte[4096];
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, bytesRead);
        }//w ww  . j av  a 2  s  . c  om

        outputStream.close();
        inputStream.close();
    }

    downloadConnection.disconnect();
}

From source file:net.andylizi.colormotd.utils.AttributionUtil.java

private static String sendGet(String url, String param, String charset) {
    StringBuilder result = new StringBuilder(1024);
    BufferedReader in = null;//from  w w  w  .  j  a va 2 s .  co m
    try {
        String urlNameString = url + "?" + param;
        URL realUrl = new URL(urlNameString);
        HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
        conn.setRequestProperty("User-Agent", "ColorMOTD/" + UUID.randomUUID());
        conn.setRequestProperty("Accept-Charset", charset);
        conn.setUseCaches(true);
        conn.setConnectTimeout(2000);
        conn.setReadTimeout(3000);
        conn.connect();
        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), Charset.forName(charset)), 1024);
        String line;
        while ((line = in.readLine()) != null) {
            result.append(line);
        }
        conn.disconnect();
    } catch (Exception e) {
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (Exception e2) {
        }
    }
    return result.toString();
}

From source file:Main.java

static public JSONArray loadJSON(String url) {
    HttpURLConnection connection = null;
    JSONArray json = null;//from w w w  .j  a v  a 2  s .  co  m
    InputStream is = null;

    try {
        connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setConnectTimeout(5000);

        is = new BufferedInputStream(connection.getInputStream());
        json = new JSONArray(convertStreamToString(is));
    } catch (IOException ioe) {
        ioe.printStackTrace();
    } catch (JSONException je) {
        je.printStackTrace();
    } finally {
        try {
            if (is != null) {
                is.close();
            }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }

        if (connection != null) {
            connection.disconnect();
        }
    }

    return json;
}

From source file:lu.list.itis.dkd.aig.util.FusekiHttpHelper.java

/**
 * Create a new dataset/*w w  w  .jav a2s.c om*/
 * 
 * @param dataSetName
 * @throws IOException
 * @throws HttpException
 */
public static void createDataSet(@NonNull String dataSetName) throws IOException, HttpException {
    logger.info("create dataset: " + dataSetName);

    URL url = new URL(HOST + "/$/datasets");
    final HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();
    httpConnection.setUseCaches(false);
    httpConnection.setRequestMethod("POST");
    httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

    // set content
    httpConnection.setDoOutput(true);
    final OutputStreamWriter out = new OutputStreamWriter(httpConnection.getOutputStream());
    out.write("dbName=" + URLEncoder.encode(dataSetName, "UTF-8") + "&dbType=mem");
    out.close();

    // handle HTTP/HTTPS strange behaviour
    httpConnection.connect();
    httpConnection.disconnect();

    // handle response
    switch (httpConnection.getResponseCode()) {
    case HttpURLConnection.HTTP_OK:
        break;
    default:
        throw new HttpException(
                httpConnection.getResponseCode() + " message: " + httpConnection.getResponseMessage());
    }
}

From source file:core.Utility.java

public static ArrayList<String> getWikiText(String _word) throws MalformedURLException, IOException {
    ArrayList<String> _list = new ArrayList();
    try {//w  w w. java  2s .  c om

        URL url = new URL("http://en.wiktionary.org/w/api.php" + "?action=parse" + "&prop=wikitext" + "&page="
                + _word + "&format=xmlfm");

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output, wikiText = "";
        while ((output = br.readLine()) != null) {
            wikiText += output + "\n";
        }

        conn.disconnect();

    } catch (MalformedURLException e) {
        throw e;
    } catch (IOException e) {
        throw e;
    }
    return _list;
}

From source file:net.andylizi.colormotd.anim.utils.AttributionUtil.java

private static String sendGet(String url, String param, String charset) {
    StringBuilder result = new StringBuilder(1024);
    BufferedReader in = null;/*from   ww w .j a  v  a2  s.  c o  m*/
    try {
        String urlNameString = url + "?" + param;
        URL realUrl = new URL(urlNameString);
        HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
        conn.setRequestProperty("User-Agent", Main.getInstance().getDescription().getFullName());
        conn.setRequestProperty("Accept-Charset", charset);
        conn.setUseCaches(true);
        conn.setConnectTimeout(2000);
        conn.setReadTimeout(3000);
        conn.connect();
        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), Charset.forName(charset)), 1024);
        String line;
        while ((line = in.readLine()) != null) {
            result.append(line);
        }
        conn.disconnect();
    } catch (Exception e) {
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (Exception e2) {
        }
    }
    return result.toString();
}