Example usage for java.net HttpURLConnection setInstanceFollowRedirects

Introduction

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

Prototype

public void setInstanceFollowRedirects(boolean followRedirects) 

Source Link

Document

Sets whether HTTP redirects (requests with response code 3xx) should be automatically followed by this HttpURLConnection instance.

Usage

From source file:org.apache.hadoop.mapred.TestJobRetire.java

private JobID validateJobRetire(JobConf jobConf, Path inDir, Path outDir, JobTracker jobtracker)
        throws IOException {

    RunningJob rj = UtilsForTests.runJob(jobConf, inDir, outDir, 0, 0);
    rj.waitForCompletion();//from   ww  w.  j a v a  2  s  .  c om
    assertTrue(rj.isSuccessful());
    JobID id = rj.getID();

    //wait for job to get retired
    waitTillRetire(id, jobtracker);
    RetireJobInfo retired = jobtracker.retireJobs.get(id);
    assertTrue("History url not set",
            retired.getHistoryFile() != null && retired.getHistoryFile().length() > 0);
    assertNotNull("Job is not in cache", jobtracker.getJobStatus(id));

    // get the job conf filename
    String name = jobtracker.getLocalJobFilePath(id);
    File file = new File(name);

    assertFalse("JobConf file not deleted", file.exists());
    //test redirection
    URL jobUrl = new URL(rj.getTrackingURL());
    HttpURLConnection conn = (HttpURLConnection) jobUrl.openConnection();
    conn.setInstanceFollowRedirects(false);
    conn.connect();
    assertEquals(HttpURLConnection.HTTP_MOVED_TEMP, conn.getResponseCode());
    conn.disconnect();

    URL redirectedUrl = new URL(conn.getHeaderField("Location"));
    conn = (HttpURLConnection) redirectedUrl.openConnection();
    conn.connect();
    assertEquals(HttpURLConnection.HTTP_OK, conn.getResponseCode());
    conn.disconnect();

    return id;
}

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From source file:com.spotify.helios.client.DefaultHttpConnector.java

private HttpURLConnection connect0(final URI ipUri, final String method, final byte[] entity,
        final Map<String, List<String>> headers, final String endpointHost) throws IOException {
    if (log.isTraceEnabled()) {
        log.trace("req: {} {} {} {} {} {}", method, ipUri, headers.size(),
                Joiner.on(',').withKeyValueSeparator("=").join(headers), entity.length,
                Json.asPrettyStringUnchecked(entity));
    } else {//ww w .ja  v a2 s. com
        log.debug("req: {} {} {} {}", method, ipUri, headers.size(), entity.length);
    }

    final HttpURLConnection connection = (HttpURLConnection) ipUri.toURL().openConnection();
    handleHttps(connection, endpointHost, hostnameVerifierProvider, extraHttpsHandler);

    connection.setRequestProperty("Accept-Encoding", "gzip");
    connection.setInstanceFollowRedirects(false);
    connection.setConnectTimeout(httpTimeoutMillis);
    connection.setReadTimeout(httpTimeoutMillis);
    for (Map.Entry<String, List<String>> header : headers.entrySet()) {
        for (final String value : header.getValue()) {
            connection.addRequestProperty(header.getKey(), value);
        }
    }
    if (entity.length > 0) {
        connection.setDoOutput(true);
        connection.getOutputStream().write(entity);
    }

    setRequestMethod(connection, method, connection instanceof HttpsURLConnection);

    return connection;
}

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From source file:com.entertailion.android.dial.HttpRequestHelper.java

public InputStream getHttpStream(String urlString) throws IOException {
    InputStream in = null;//from w w w  .  j a  v a2  s  . co m
    int response = -1;

    URL url = new URL(urlString);
    URLConnection conn = url.openConnection();

    if (!(conn instanceof HttpURLConnection))
        throw new IOException("Not an HTTP connection");

    try {
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        httpConn.setAllowUserInteraction(false);
        httpConn.setInstanceFollowRedirects(true);
        httpConn.setRequestMethod("GET");
        httpConn.connect();

        response = httpConn.getResponseCode();

        if (response == HttpURLConnection.HTTP_OK) {
            in = httpConn.getInputStream();
        }
    } catch (Exception e) {
        throw new IOException("Error connecting");
    } // end try-catch

    return in;
}

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From source file:com.shopgun.android.sdk.network.impl.HttpURLNetwork.java

private HttpURLConnection openConnection(Request<?> request, URL url) throws IOException {

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

    connection.setConnectTimeout(request.getTimeOut());
    connection.setReadTimeout(request.getTimeOut());
    connection.setUseCaches(false);/*from w w  w.  ja va  2s.  c  o  m*/
    connection.setDoInput(true);
    connection.setInstanceFollowRedirects(false);

    setHeaders(request, connection);
    setRequestMethod(connection, request);
    return connection;
}

---

From source file:org.lnicholls.galleon.util.IMDB.java

public static String getIMDBID2(String key) {

    String imdb = null;//from w w w.ja va2  s  . c  o  m

    if (key != null) {

        StringBuffer buffer = new StringBuffer();

        byte[] buf = new byte[1024];

        int amount = 0;

        try {

            URL url = new URL("http://nicholls.us/imdb/imdbsearchxml.php?name=" + URLEncoder.encode(key));

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();

            conn.setRequestProperty("User-Agent", "Galleon " + Tools.getVersion());

            conn.setInstanceFollowRedirects(true);

            InputStream input = conn.getInputStream();

            while ((amount = input.read(buf)) > 0) {

                buffer.append(new String(buf, 0, amount));

            }

            input.close();

            conn.disconnect();

            SAXReader saxReader = new SAXReader();

            StringReader stringReader = new StringReader(buffer.toString().trim());

            Document document = saxReader.read(stringReader);

            //Document document = saxReader.read(new File("d:/galleon/imdb.xml"));

            Element root = document.getRootElement();

            return Tools.getAttribute(root, "imdb");

        } catch (Exception ex) {

            Tools.logException(IMDB.class, ex, "Could not get IMDB ID: " + key);

        }

    }

    return imdb;

}

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From source file:org.cloudfoundry.identity.uaa.test.TestAccountSetup.java

private OAuth2RestTemplate createRestTemplate(OAuth2ProtectedResourceDetails resource,
        AccessTokenRequest accessTokenRequest) {
    OAuth2ClientContext context = new DefaultOAuth2ClientContext(accessTokenRequest);
    OAuth2RestTemplate client = new OAuth2RestTemplate(resource, context);
    client.setRequestFactory(new SimpleClientHttpRequestFactory() {
        @Override/* w  ww  . j  a  v a  2 s .  co m*/
        protected void prepareConnection(HttpURLConnection connection, String httpMethod) throws IOException {
            super.prepareConnection(connection, httpMethod);
            connection.setInstanceFollowRedirects(false);
        }
    });
    client.setErrorHandler(new OAuth2ErrorHandler(client.getResource()) {
        // Pass errors through in response entity for status code analysis
        @Override
        public boolean hasError(ClientHttpResponse response) throws IOException {
            return false;
        }

        @Override
        public void handleError(ClientHttpResponse response) throws IOException {
        }
    });
    List<HttpMessageConverter<?>> list = new ArrayList<HttpMessageConverter<?>>();
    list.add(new StringHttpMessageConverter());
    list.add(new MappingJackson2HttpMessageConverter());
    client.setMessageConverters(list);
    return client;
}

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From source file:org.ow2.proactive_grid_cloud_portal.cli.cmd.sched.PackageDownloader.java

/**
 * This method returns the real URL if the given URL forwards to another one. Otherwise it returns the given URL.
 *
 * @param url//from  w  w  w . j  a  v a  2s  .c  o m
 * @return
 * @throws IOException
 */
private URL getRealURLIfForwarded(URL url) throws IOException {
    HttpURLConnection con = (HttpURLConnection) url.openConnection();
    con.setInstanceFollowRedirects(false);
    con.connect();
    return con.getHeaderField("Location") != null ? new URL(con.getHeaderField("Location")) : url;
}

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From source file:com.laurencedawson.image_management.ImageManager.java

/**
 * Grab and save an image directly to disk
 * @param file The Bitmap file/*from   w  w w .  j av  a 2s. c  om*/
 * @param url The URL of the image
 * @param imageCallback The callback associated with the request
 */
public static void cacheImage(final File file, ImageRequest imageCallback) {

    HttpURLConnection urlConnection = null;
    FileOutputStream fileOutputStream = null;
    InputStream inputStream = null;
    boolean isGif = false;

    try {
        // Setup the connection
        urlConnection = (HttpURLConnection) new URL(imageCallback.mUrl).openConnection();
        urlConnection.setConnectTimeout(ImageManager.LONG_CONNECTION_TIMEOUT);
        urlConnection.setReadTimeout(ImageManager.LONG_REQUEST_TIMEOUT);
        urlConnection.setUseCaches(true);
        urlConnection.setInstanceFollowRedirects(true);

        // Set the progress to 0
        imageCallback.sendProgressUpdate(imageCallback.mUrl, 0);

        // Connect
        inputStream = urlConnection.getInputStream();

        // Do not proceed if the file wasn't downloaded
        if (urlConnection.getResponseCode() == 404) {
            urlConnection.disconnect();
            return;
        }

        // Check if the image is a GIF
        String contentType = urlConnection.getHeaderField("Content-Type");
        if (contentType != null) {
            isGif = contentType.equals(GIF_MIME);
        }

        // Grab the length of the image
        int length = 0;
        try {
            String fileLength = urlConnection.getHeaderField("Content-Length");
            if (fileLength != null) {
                length = Integer.parseInt(fileLength);
            }
        } catch (NumberFormatException e) {
            if (ImageManager.DEBUG) {
                e.printStackTrace();
            }
        }

        // Write the input stream to disk
        fileOutputStream = new FileOutputStream(file, true);
        int byteRead = 0;
        int totalRead = 0;
        final byte[] buffer = new byte[8192];
        int frameCount = 0;

        // Download the image
        while ((byteRead = inputStream.read(buffer)) != -1) {

            // If the image is a gif, count the start of frames
            if (isGif) {
                for (int i = 0; i < byteRead - 3; i++) {
                    if (buffer[i] == 33 && buffer[i + 1] == -7 && buffer[i + 2] == 4) {
                        frameCount++;

                        // Once we have at least one frame, stop the download
                        if (frameCount > 1) {
                            fileOutputStream.write(buffer, 0, i);
                            fileOutputStream.close();

                            imageCallback.sendProgressUpdate(imageCallback.mUrl, 100);
                            imageCallback.sendCachedCallback(imageCallback.mUrl, true);

                            urlConnection.disconnect();
                            return;
                        }
                    }
                }
            }

            // Write the buffer to the file and update the total number of bytes
            // read so far (used for the callback)
            fileOutputStream.write(buffer, 0, byteRead);
            totalRead += byteRead;

            // Update the callback with the current progress
            if (length > 0) {
                imageCallback.sendProgressUpdate(imageCallback.mUrl,
                        (int) (((float) totalRead / (float) length) * 100));
            }
        }

        // Tidy up after the download
        if (fileOutputStream != null) {
            fileOutputStream.close();
        }

        // Sent the callback that the image has been downloaded
        imageCallback.sendCachedCallback(imageCallback.mUrl, true);

        if (inputStream != null) {
            inputStream.close();
        }

        // Disconnect the connection
        urlConnection.disconnect();
    } catch (final MalformedURLException e) {
        if (ImageManager.DEBUG) {
            e.printStackTrace();
        }

        // If the file exists and an error occurred, delete the file
        if (file != null) {
            file.delete();
        }

    } catch (final IOException e) {
        if (ImageManager.DEBUG) {
            e.printStackTrace();
        }

        // If the file exists and an error occurred, delete the file
        if (file != null) {
            file.delete();
        }

    }

}

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From source file:uk.ac.ucl.excites.sapelli.collector.util.AsyncDownloader.java

private boolean download(String downloadUrl) {
    if (downloadUrl == null || downloadUrl.isEmpty()) {
        failure = new Exception("No URL given!");
        return false;
    }//  w ww .ja  v  a  2s . co m

    //Log.d(getClass().getSimpleName(), "Download URL: " + downloadUrl);
    if (DeviceControl.isOnline(context)) {
        InputStream input = null;
        OutputStream output = null;
        try {
            URL url = new URL(downloadUrl);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setInstanceFollowRedirects(false); // we handle redirects manually below (otherwise HTTP->HTTPS redirects don't work):
            conn.connect();

            // Detect & follow redirects:
            int status = conn.getResponseCode();
            //Log.d(getClass().getSimpleName(), "Response Code: " + status);
            if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
                    || status == HttpURLConnection.HTTP_SEE_OTHER) { // follow redirect url from "location" header field
                String newUrl = conn.getHeaderField("Location");
                //Log.d(getClass().getSimpleName(), "Redirect to URL : " + newUrl);
                return download(newUrl);
            }

            // Getting file length
            final int fileLength = conn.getContentLength();
            publishProgress(fileLength < 0 ? // when fileLength = -1 this means the server hasn't specified the file length
                    -1 : // progressDialog will open and be set to indeterminate mode
                    0); // progressDialog will open and be set to 0

            // Input stream to read file - with 8k buffer
            input = new BufferedInputStream(url.openStream(), 8192);
            // Output stream to write file
            output = new BufferedOutputStream(new FileOutputStream(downloadedFile));

            byte data[] = new byte[1024];
            int total = 0;
            int percentage = 0;
            int bytesRead;
            while ((bytesRead = input.read(data)) != -1) {
                // Complete % completion:
                if (fileLength > 0) // don't divide by 0 and only update progress if we know the fileLength (i.e. != -1)
                {
                    int newPercentage = (int) ((total += bytesRead) / ((float) fileLength) * 100f);
                    if (newPercentage != percentage)
                        publishProgress(percentage = newPercentage);
                }

                // Write data to file...
                output.write(data, 0, bytesRead);
            }

            // Flush output:
            output.flush();
        } catch (Exception e) {
            failure = e;
            return false;
        } finally { // Close streams:
            StreamHelpers.SilentClose(input);
            StreamHelpers.SilentClose(output);
        }
        //Log.d(getClass().getSimpleName(), "Download done");
        return true;
    } else {
        failure = new Exception("The device is not online.");
        return false;
    }
}

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From source file:com.amastigote.xdu.query.module.WaterAndElectricity.java

@Override
public boolean login(@NotNull String username, @NotNull String password) throws IOException {
    preLogin();//w w  w .  ja va 2  s.  co m

    URL url = new URL(HOST + LOGIN_SUFFIX);
    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestMethod("POST");
    httpURLConnection.setInstanceFollowRedirects(false);
    httpURLConnection.setDoOutput(true);
    httpURLConnection.setRequestProperty("Cookie", "ASP.NET_SessionId=" + ASP_dot_NET_SessionId);
    httpURLConnection.setRequestProperty("AjaxPro-Method", "getLoginInput");
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("webName", username);
    jsonObject.put("webPass", password);
    httpURLConnection.connect();
    OutputStreamWriter outputStreamWriter = new OutputStreamWriter(httpURLConnection.getOutputStream());
    outputStreamWriter.write(jsonObject.toString());
    outputStreamWriter.flush();
    outputStreamWriter.close();
    httpURLConnection.getResponseCode();

    httpURLConnection.disconnect();
    return checkIsLogin(username);
}

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