Example usage for java.net HttpURLConnection connect

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.fashiontec.bodyapps.sync.Sync.java

/**
 * Downloads a file from given URL./*from  ww w . j av  a  2s .com*/
 *
 * @param url
 * @param file
 * @return
 */
public int download(String url, String file) {

    try {
        URL u = new URL(url);
        HttpURLConnection c = (HttpURLConnection) u.openConnection();
        c.setConnectTimeout(2000);
        c.setRequestProperty("Accept", "application/vnd.valentina.hdf");
        c.connect();

        FileOutputStream f = new FileOutputStream(new File(file));
        InputStream in = c.getInputStream();

        //download code
        byte[] buffer = new byte[1024];
        int len1 = 0;

        while ((len1 = in.read(buffer)) > 0) {
            f.write(buffer, 0, len1);
        }
        f.close();
    } catch (Exception e) {
        Log.e(TAG, e.getMessage());
        return -1;
    }
    return 1;
}

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From source file:gmusic.api.comm.HttpUrlConnector.java

@Override
public final synchronized String dispatchPost(URI address, FormBuilder form)
        throws IOException, URISyntaxException {
    HttpURLConnection connection = prepareConnection(address, true, "POST");
    if (!Strings.isNullOrEmpty(form.getContentType())) {
        connection.setRequestProperty("Content-Type", form.getContentType());
    }/*from   w  ww.j  av  a  2s  . c o m*/
    connection.connect();
    connection.getOutputStream().write(form.getBytes());
    if (connection.getResponseCode() != 200) {
        throw new IllegalStateException("Statuscode " + connection.getResponseCode() + " not supported");
    }

    String response = IOUtils.toString(connection.getInputStream());

    setCookie(connection);

    if (!isStartup) {
        return response;
    }
    return setupAuthentication(response);
}

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From source file:org.digitalcampus.oppia.task.DownloadCourseTask.java

@Override
protected Payload doInBackground(Payload... params) {
    Payload payload = params[0];//w  ww.  j a  va  2  s .  c  om

    Course dm = (Course) payload.getData().get(0);
    DownloadProgress dp = new DownloadProgress();
    try {
        HTTPConnectionUtils client = new HTTPConnectionUtils(ctx);

        String url = client.createUrlWithCredentials(dm.getDownloadUrl());

        Log.d(TAG, "Downloading:" + url);

        URL u = new URL(url);
        HttpURLConnection c = (HttpURLConnection) u.openConnection();
        c.setRequestMethod("GET");
        c.setDoOutput(true);
        c.connect();
        c.setConnectTimeout(
                Integer.parseInt(prefs.getString(ctx.getString(R.string.prefs_server_timeout_connection),
                        ctx.getString(R.string.prefServerTimeoutConnection))));
        c.setReadTimeout(Integer.parseInt(prefs.getString(ctx.getString(R.string.prefs_server_timeout_response),
                ctx.getString(R.string.prefServerTimeoutResponse))));

        int fileLength = c.getContentLength();

        String localFileName = dm.getShortname() + "-" + String.format("%.0f", dm.getVersionId()) + ".zip";

        dp.setMessage(localFileName);
        dp.setProgress(0);
        publishProgress(dp);

        Log.d(TAG, "saving to: " + localFileName);

        FileOutputStream f = new FileOutputStream(new File(MobileLearning.DOWNLOAD_PATH, localFileName));
        InputStream in = c.getInputStream();

        byte[] buffer = new byte[1024];
        int len1 = 0;
        long total = 0;
        int progress = 0;
        while ((len1 = in.read(buffer)) > 0) {
            total += len1;
            progress = (int) (total * 100) / fileLength;
            if (progress > 0) {
                dp.setProgress(progress);
                publishProgress(dp);
            }
            f.write(buffer, 0, len1);
        }
        f.close();

        dp.setProgress(100);
        publishProgress(dp);
        dp.setMessage(ctx.getString(R.string.download_complete));
        publishProgress(dp);
        payload.setResult(true);
    } catch (ClientProtocolException cpe) {
        if (!MobileLearning.DEVELOPER_MODE) {
            BugSenseHandler.sendException(cpe);
        } else {
            cpe.printStackTrace();
        }
        payload.setResult(false);
        payload.setResultResponse(ctx.getString(R.string.error_connection));
    } catch (SocketTimeoutException ste) {
        if (!MobileLearning.DEVELOPER_MODE) {
            BugSenseHandler.sendException(ste);
        } else {
            ste.printStackTrace();
        }
        payload.setResult(false);
        payload.setResultResponse(ctx.getString(R.string.error_connection));
    } catch (IOException ioe) {
        if (!MobileLearning.DEVELOPER_MODE) {
            BugSenseHandler.sendException(ioe);
        } else {
            ioe.printStackTrace();
        }
        payload.setResult(false);
        payload.setResultResponse(ctx.getString(R.string.error_connection));
    }

    return payload;
}

---

From source file:org.jenkinsci.plugins.url_auth.UrlSecurityRealm.java

@Override
protected UserDetails authenticate(String username, String password) throws AuthenticationException {
    try {//  w  ww .j  ava 2  s  .  c  om
        if (username == null || password == null || username.trim().isEmpty() || password.trim().isEmpty()) {
            throw new BadCredentialsException("Username or password can't be empty.");
        }
        String urlString = loginUrl.replace("[username]", username).replace("[password]", password);
        //System.out.println(urlString);
        URL iurl = new URL(urlString);
        HttpURLConnection uc;
        if (testConnection == null) {
            uc = (HttpURLConnection) iurl.openConnection();
        } else {
            uc = testConnection;
        }
        uc.connect();
        if (this.useResponseCode) {
            int response = uc.getResponseCode();
            uc.disconnect();
            if (response != successResponse) {
                throw new BadCredentialsException(
                        String.format("Response %d didn't match %d", response, this.successResponse));
            }
        } else {
            BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream()));

            String matchLine = in.readLine().toLowerCase();
            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                System.out.println(inputLine);
                matchLine = matchLine.concat(inputLine);
            }
            matchLine = matchLine.trim().toLowerCase();
            System.out.println(matchLine);
            in.close();
            uc.disconnect();
            if (matchLine == null ? this.successString.toLowerCase() != null
                    : !matchLine.equals(this.successString.toLowerCase())) {
                throw new BadCredentialsException(
                        String.format("Response %s didn't match %s", matchLine, this.successString));
            }
        }
        GrantedAuthority[] groups = new GrantedAuthority[0];
        UserDetails d = new User(username, password, true, true, true, true, groups);
        return d;
    } catch (Exception e) {
        throw new AuthenticationServiceException("Failed", e);
    }
}

---

From source file:abelymiguel.miralaprima.SetMoza.java

private Boolean checkUrlMoza(String url_moza) {
    Boolean result;//from  ww  w.j av a 2s.  c om
    URL url;
    HttpURLConnection conexion;
    try {
        url = new URL(url_moza);
        conexion = (HttpURLConnection) url.openConnection();
        conexion.connect();
        BufferedReader respContent;
        respContent = new BufferedReader(new InputStreamReader(conexion.getInputStream()));
        respContent.close();
        conexion.disconnect();
        result = true;
    } catch (IOException e) {
        Logger.getLogger(GetMoza.class.getName()).log(Level.WARNING, null, e);
        result = false;
    }

    return result;
}

---

From source file:com.tarsoft.openlibra.OpenLibraClient.java

private Bitmap drawableFromUrl(String url) throws java.net.MalformedURLException, java.io.IOException {
    Bitmap x;/*from  w  w w. j av a  2s.  com*/

    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setRequestProperty("User-agent", "Mozilla/4.0");

    connection.connect();
    InputStream input = connection.getInputStream();

    x = BitmapFactory.decodeStream(input);
    return x;
}

---

From source file:com.sap.wec.adtreco.be.ODataClientService.java

private InputStream execute(final String relativeUri, final String contentType, final String httpMethod)
        throws IOException, MalformedURLException {
    final HttpURLConnection connection = initializeConnection(relativeUri, contentType, httpMethod);
    connection.connect();
    checkStatus(connection);/*  www  .  ja  va  2 s  .c om*/
    final InputStream content = connection.getInputStream();
    return content;
}

---

From source file:fm.krui.kruifm.TrackUpdateHandler.java

/**
 * Downloads album art from passed URL using the last.fm api.
 * @param url Web safe location of image as URL.
 * @return Bitmap of the image requested
 *//*  w  ww  . j  a  v  a2  s.  c  o  m*/
protected Bitmap downloadAlbumArt(String url) {

    Bitmap bitmap;

    // Check if an album art URL was returned. If there's no location, there's no point in wasting resources trying to download nothing.
    if (artUrl.equals("*NO_ART*") == false) {

        // Download the image from URL
        try {
            HttpURLConnection connection;
            connection = (HttpURLConnection) new URL(url).openConnection();
            connection.connect();
            InputStream input = connection.getInputStream();
            bitmap = BitmapFactory.decodeStream(input);
            return bitmap;

        } catch (MalformedURLException e) {
            Log.e(TAG, "Malformed URL detected when downloading album art: ");
            e.printStackTrace();
        } catch (IOException e) {
            Log.e(TAG, "Failed to process album art: ");
            e.printStackTrace();
        }
    }

    // If the download fails or image doesn't exist, display the default KRUI background image.
    bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.krui_background_logo);
    return bitmap;
}

---

From source file:com.opentransport.rdfmapper.nmbs.NetworkDisturbanceFetcher.java

private void scrapeNetworkDisturbanceWebsite(String language, String _url) {
    Document doc;//from   w w  w  .ja  v a2s  . c  o m
    int i = 0;
    //English Version
    try {
        URL url = new URL(_url);
        HttpURLConnection request = (HttpURLConnection) url.openConnection();
        request.connect();

        // Convert to a JSON object to print data
        JsonParser jp = new JsonParser(); //from gson
        JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent())); //Convert the input stream to a json element
        JsonArray disturbances = root.getAsJsonObject().getAsJsonArray("him");

        for (JsonElement el : disturbances) {
            JsonObject obj = (JsonObject) el;

            String header = obj.get("header").getAsString();
            String description = obj.get("text").getAsString();
            String urls = ""; // todo check JsonNull

            String begin = obj.get("begin").getAsString(); // dd.MM.yyyy HH:mm
            String end = obj.get("end").getAsString(); // dd.MM.yyyy HH:mm
            SimpleDateFormat df = new SimpleDateFormat("dd.MM.yy HH:mm");
            df.setTimeZone(TimeZone.getTimeZone("Europe/Brussels"));

            Date date;
            long startEpoch, endEpoch;
            try {
                date = df.parse(begin);
                startEpoch = date.getTime() / 1000;
                date = df.parse(end);
                endEpoch = date.getTime() / 1000;
            } catch (ParseException ex) {
                // When time range is missing, take 12 hours before and after
                startEpoch = new Date().getTime() - 43200;
                endEpoch = new Date().getTime() + 43200;

                Logger.getLogger(NetworkDisturbanceFetcher.class.getName()).log(Level.SEVERE, null, ex);
            }

            int startStationId, endStationId, impactStationId;
            if (obj.has("startstation_extId")) {
                startStationId = obj.get("startstation_extId").getAsInt();
            } else {
                startStationId = -1;
            }
            if (obj.has("endstation_extId")) {
                endStationId = obj.get("endstation_extId").getAsInt();
            } else {
                endStationId = -1;
            }
            if (obj.has("impactstation_extId")) {
                impactStationId = obj.get("impactstation_extId").getAsInt();
            } else {
                impactStationId = -1;
            }

            String id = obj.get("id").getAsString();

            NetworkDisturbance disturbance = new NetworkDisturbance(header, description, urls, language,
                    startEpoch, endEpoch, startStationId, endStationId, impactStationId, id);

            networkDisturbances.add(disturbance);
        }

    } catch (IOException ex) {
        Logger.getLogger(NetworkDisturbanceFetcher.class.getName()).log(Level.SEVERE, null, ex);
        errorWriter.writeError(ex.toString());
    }

}

---

From source file:io.mesosphere.mesos.frameworks.cassandra.scheduler.api.AbstractApiControllerTest.java

@NotNull
protected Tuple2<Integer, String> fetchText(final String rel, final String expectedContentType)
        throws Exception {
    final HttpURLConnection conn = (HttpURLConnection) resolve(rel).toURL().openConnection();
    try {// ww w  .  j a va 2  s .co m
        conn.setRequestProperty("Accept", expectedContentType);
        conn.connect();

        final int responseCode = conn.getResponseCode();

        InputStream in;
        try {
            in = conn.getInputStream();
        } catch (final IOException e) {
            in = conn.getErrorStream();
        }
        if (in == null) {
            return Tuple2.tuple2(responseCode, "");
        }

        assertEquals(expectedContentType, conn.getHeaderField("Content-Type"));

        try {
            final StringBuilder sb = new StringBuilder();
            int rd;
            while ((rd = in.read()) != -1) {
                sb.append((char) rd);
            }
            return Tuple2.tuple2(responseCode, sb.toString());
        } finally {
            in.close();
        }
    } finally {
        conn.disconnect();
    }
}

---

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