Example usage for java.net HttpURLConnection disconnect

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:mayo.edu.server.JsonServiceImpl.java

/**
 * Make a REST call to retrieve XML response
 * @param endpoint//from ww  w  . j a  v a  2s . co  m
 * @return
 */
private String makeRestCall(String endpoint) {

    HttpURLConnection request = null;
    BufferedReader rd = null;
    StringBuilder response = null;

    try {

        java.net.URL endpointUrl = new java.net.URL(endpoint);
        request = (java.net.HttpURLConnection) endpointUrl.openConnection();
        request.setRequestMethod("GET");

        rd = new java.io.BufferedReader(new java.io.InputStreamReader(request.getInputStream()));

        request.connect();

        // read the response
        response = new StringBuilder();
        String line = null;
        while ((line = rd.readLine()) != null) {
            response.append(line + '\n');
        }

        // Finally, the connection is released and the response is processed
        request.disconnect();
        rd.close();
        System.out.println((response != null) ? response.toString() : "No Response");

    } catch (MalformedURLException e) {
        System.out.println("Exception: " + e.getMessage());
        // e.printStackTrace();
    } catch (ProtocolException e) {
        System.out.println("Exception: " + e.getMessage());
        // e.printStackTrace();
    } catch (IOException e) {
        System.out.println("Exception: " + e.getMessage());
        // e.printStackTrace();
    } catch (Exception e) {
        System.out.println("Exception: " + e.getMessage());
        // e.printStackTrace();
    } finally {
        try {
            request.disconnect();
        } catch (Exception e) {
        }

        if (rd != null) {
            try {
                rd.close();
            } catch (IOException ex) {
            }
            rd = null;
        }
    }

    return response.toString();
}

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From source file:export.GarminUploader.java

@Override
public Status listWorkouts(List<Pair<String, String>> list) {
    Status s;//from  w w  w  .j  a v  a  2s .  c o m
    if ((s = connect()) != Status.OK) {
        return s;
    }

    HttpURLConnection conn = null;
    Exception ex = null;
    try {
        conn = (HttpURLConnection) new URL(LIST_WORKOUTS_URL).openConnection();
        conn.setRequestMethod("GET");
        addCookies(conn);
        conn.connect();
        getCookies(conn);
        InputStream in = new BufferedInputStream(conn.getInputStream());
        JSONObject obj = parse(in);
        conn.disconnect();
        int responseCode = conn.getResponseCode();
        String amsg = conn.getResponseMessage();
        if (responseCode == 200) {
            obj = obj.getJSONObject("com.garmin.connect.workout.dto.BaseUserWorkoutListDto");
            JSONArray arr = obj.getJSONArray("baseUserWorkouts");
            for (int i = 0;; i++) {
                obj = arr.optJSONObject(i);
                if (obj == null)
                    break;
                list.add(new Pair<String, String>(obj.getString("workoutId"),
                        obj.getString("workoutName") + ".json"));
            }
            return Status.OK;
        }
        ex = new Exception(amsg);
    } catch (IOException e) {
        ex = e;
    } catch (JSONException e) {
        ex = e;
    }

    s = Uploader.Status.ERROR;
    s.ex = ex;
    if (ex != null) {
        ex.printStackTrace();
    }
    return s;
}

---

From source file:uk.ac.ed.portlets.almaportlet.service.AlmaReaderService.java

/**
 * Given userid and type of request (fine, loan, request) get xml from web service
 * @param userid user id/*from  ww  w .ja va 2s . c o  m*/
 * @param type type of request (fine, loan, request)
 * @return xml wraps the data
 */
private String readRestfulService(String userid, String type, String status) throws Exception {
    logger.debug("applicationKey --> " + applicationKey);
    logger.debug("almaBaseURL --> " + almaBaseURL);

    try {
        String endpoint = almaBaseURL + userid + "/" + type;

        logger.debug("call alma --> " + endpoint);

        StringBuilder urlBuilder = new StringBuilder(endpoint);
        urlBuilder.append("?");
        urlBuilder.append(URLEncoder.encode("user_id_type", "UTF-8") + "="
                + URLEncoder.encode("all_unique", "UTF-8") + "&");
        urlBuilder
                .append(URLEncoder.encode("status", "UTF-8") + "=" + URLEncoder.encode(status, "UTF-8") + "&");
        if (type.equals(TYPE_LOAN)) {
            urlBuilder.append(
                    URLEncoder.encode("limit", "UTF-8") + "=" + URLEncoder.encode("100", "UTF-8") + "&");
        }
        urlBuilder.append(
                URLEncoder.encode("apikey", "UTF-8") + "=" + URLEncoder.encode(applicationKey, "UTF-8"));
        URL url = new URL(urlBuilder.toString());
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        logger.debug("Response code: " + conn.getResponseCode());
        BufferedReader rd;
        if (conn.getResponseCode() >= 200 && conn.getResponseCode() <= 300) {
            rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        } else {
            rd = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
        }
        StringBuilder sb = new StringBuilder();
        String line;
        while ((line = rd.readLine()) != null) {
            sb.append(line);
        }
        rd.close();
        conn.disconnect();

        String result = sb.toString();
        logger.debug("result --> " + result);
        if (type.equals(TYPE_FINE)) {
            if (result.contains("<fees")) {
                return result;
            }
        } else if (type.equals(TYPE_LOAN)) {
            if (result.contains("<item_loans")) {
                return result;
            }
        } else if (type.equals(TYPE_REQUEST)) {
            if (result.contains("<user_requests")) {
                return result;
            }
        }

        return "";
    } catch (Exception e) {
        return "";
    }
}

---

From source file:com.commonsware.android.EMusicDownloader.SingleBook.java

private Bitmap getImageBitmap(String url) {
    Bitmap bm = null;//from  ww  w. j a v a  2  s  .  c  om
    try {
        URL aURL = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) aURL.openConnection();
        long ifs = 0;
        ifs = conn.getContentLength();
        if (ifs == -1) {
            conn.disconnect();
            conn = (HttpURLConnection) aURL.openConnection();
            ifs = conn.getContentLength();
        }
        vArtExists = false;
        if (ifs > 0) {
            conn.connect();
            InputStream is = conn.getInputStream();
            BufferedInputStream bis = new BufferedInputStream(is);
            bm = BitmapFactory.decodeStream(bis);
            bis.close();
            is.close();
            vArtExists = true;
        }
    } catch (IOException e) {
        vArtExists = false;
        final IOException ef = e;
        final String urlf = url;
    }
    return bm;
}

---

From source file:com.esri.geoevent.processor.reversegeocoder.ReverseGeocoderProcessor.java

private String getReverseGeocode(URL url) {
    String output = "";

    try {//from w w  w  .  j  a  v  a  2 s. c  o  m

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

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

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

        String line;
        while ((line = br.readLine()) != null) {
            output += line;
        }

        conn.disconnect();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return output;
}

---

From source file:dk.cafeanalog.AnalogDownloader.java

public AnalogStatus isOpen() {
    HttpURLConnection connection = null;
    JsonReader reader = null;/*w w  w  . ja  v a 2  s . c  o  m*/

    try {
        URL url = new URL("http", "cafeanalog.dk", "api/open");
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.connect();
        reader = new JsonReader(new InputStreamReader(connection.getInputStream()));
        reader.beginObject();
        while (!reader.nextName().equals("open")) {
            reader.skipValue();
        }
        return reader.nextBoolean() ? AnalogStatus.OPEN : AnalogStatus.CLOSED;
    } catch (IOException e) {
        return AnalogStatus.UNKNOWN;
    } finally {
        if (connection != null)
            connection.disconnect();
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException ignored) {
            }
        }
    }
}

---

From source file:lk.appzone.client.MchoiceAventuraSmsSender.java

public String excutePost(String targetURL, String username, String password, String urlParameters)
        throws MchoiceAventuraMessagingException {
    URL url;//from  w  ww .ja va 2 s. c o m
    HttpURLConnection connection = null;
    try {
        //Create connection
        url = new URL(targetURL);
        connection = (HttpURLConnection) url.openConnection();

        setSdpHeaderParams(connection);
        setBasicAuthentication(username, password, connection);

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

        sendRequest(urlParameters, connection);

        return getResponse(connection);

    } catch (Exception e) {
        logger.error("Error occcured while sending the request", e);
        throw new MchoiceAventuraMessagingException("Error occcured while sending the request", e);

    } finally {

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

---

From source file:com.finlay.geomonsters.WeatherManager.java

private String getWeatherData(String address) {
    Log.v(TAG, "getWeatherData: " + address);
    HttpURLConnection con = null;
    InputStream is = null;/*ww  w. j a va2  s . c  o  m*/

    try {
        con = (HttpURLConnection) (new java.net.URL(address)).openConnection();
        con.setRequestMethod("GET");
        con.setDoInput(true);
        con.setDoOutput(true);
        con.connect();

        Log.v(TAG, "Open Weather connected.");
        _parent.appendMessage("Open Weather connected.");

        // Let's read the response
        StringBuffer buffer = new StringBuffer();
        is = con.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        String line = null;
        while ((line = br.readLine()) != null)
            buffer.append(line + "\r\n");

        is.close();
        con.disconnect();
        return buffer.toString();

    } catch (Throwable t) {
        Log.e(TAG, t.getMessage());
    } finally {
        try {
            is.close();
        } catch (Throwable t) {
        }
        try {
            con.disconnect();
        } catch (Throwable t) {
        }
    }

    return null;
}

---

From source file:com.PAB.ibeaconreference.AppEngineClient.java

public void delete(URL uri, Map<String, List<String>> headers) {

    DELETE delete = new DELETE(uri, headers);
    URL url = null;/*from ww w. ja  v a  2  s .co  m*/
    try {
        url = new URL("http://localhost:8080/deleteservice");
    } catch (MalformedURLException exception) {
        exception.printStackTrace();
    }
    HttpURLConnection httpURLConnection = null;
    try {
        httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        httpURLConnection.setRequestMethod("DELETE");
        System.out.println("DELETE response code..! " + httpURLConnection.getResponseCode());
    } catch (IOException exception) {
        exception.printStackTrace();
    } finally {
        if (httpURLConnection != null) {
            httpURLConnection.disconnect();
        }
    }
}

---

From source file:com.google.appengine.tck.logservice.RequestLogsTest.java

private String performPostRequest(URL url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    try {/*from ww w  .j ava 2 s . c om*/
        connection.setDoOutput(true);
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        PrintWriter out = new PrintWriter(connection.getOutputStream());
        try {
            out.println("foo=bar");
        } finally {
            out.close();
        }

        return readFullyAndClose(connection.getInputStream()).trim();
    } finally {
        connection.disconnect();
    }
}

---

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