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:com.cloud.utils.UriUtils.java

public static Long getRemoteSize(String url) {
    Long remoteSize = (long) 0;
    HttpURLConnection httpConn = null;
    HttpsURLConnection httpsConn = null;
    try {//from ww w  .  j  ava  2 s. co m
        URI uri = new URI(url);
        if (uri.getScheme().equalsIgnoreCase("http")) {
            httpConn = (HttpURLConnection) uri.toURL().openConnection();
            if (httpConn != null) {
                httpConn.setConnectTimeout(2000);
                httpConn.setReadTimeout(5000);
                String contentLength = httpConn.getHeaderField("content-length");
                if (contentLength != null) {
                    remoteSize = Long.parseLong(contentLength);
                }
                httpConn.disconnect();
            }
        } else if (uri.getScheme().equalsIgnoreCase("https")) {
            httpsConn = (HttpsURLConnection) uri.toURL().openConnection();
            if (httpsConn != null) {
                String contentLength = httpsConn.getHeaderField("content-length");
                if (contentLength != null) {
                    remoteSize = Long.parseLong(contentLength);
                }
                httpsConn.disconnect();
            }
        }
    } catch (URISyntaxException e) {
        throw new IllegalArgumentException("Invalid URL " + url);
    } catch (IOException e) {
        throw new IllegalArgumentException("Unable to establish connection with URL " + url);
    }
    return remoteSize;
}

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From source file:Main.java

static byte[] httpRequest(String url, byte[] requestBytes, int connectionTimeOutMs, int readTimeOutMs) {
    byte[] bArr = null;
    if (!(url == null || requestBytes == null)) {
        InputStream inputStream = null;
        HttpURLConnection urlConnection = null;
        try {/* ww  w .  jav  a 2 s.  co m*/
            urlConnection = (HttpURLConnection) new URL(url).openConnection();
            urlConnection.setDoOutput(true);
            urlConnection.setConnectTimeout(connectionTimeOutMs);
            urlConnection.setReadTimeout(readTimeOutMs);
            urlConnection.setFixedLengthStreamingMode(requestBytes.length);
            OutputStream outputStream = urlConnection.getOutputStream();
            outputStream.write(requestBytes);
            outputStream.close();
            if (urlConnection.getResponseCode() != 200) {
                if (inputStream != null) {
                    try {
                        inputStream.close();
                    } catch (IOException e) {
                    }
                }
                if (urlConnection != null) {
                    urlConnection.disconnect();
                }
            } else {
                inputStream = urlConnection.getInputStream();
                ByteArrayOutputStream result = new ByteArrayOutputStream();
                byte[] buffer = new byte[16384];
                while (true) {
                    int chunkSize = inputStream.read(buffer);
                    if (chunkSize < 0) {
                        break;
                    } else if (chunkSize > 0) {
                        result.write(buffer, 0, chunkSize);
                    }
                }
                bArr = result.toByteArray();
                if (inputStream != null) {
                    try {
                        inputStream.close();
                    } catch (IOException e2) {
                    }
                }
                if (urlConnection != null) {
                    urlConnection.disconnect();
                }
            }
        } catch (IOException e3) {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e4) {
                }
            }
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        } catch (Throwable th) {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e5) {
                }
            }
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        }
    }
    return bArr;
}

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From source file:Main.java

public static byte[] executePost(String url, byte[] data, Map<String, String> requestProperties)
        throws IOException {
    HttpURLConnection urlConnection = null;
    try {/*  w ww .j a  v a  2 s .c o m*/
        urlConnection = (HttpURLConnection) new URL(url).openConnection();
        urlConnection.setRequestMethod("POST");
        urlConnection.setDoOutput(data != null);
        urlConnection.setDoInput(true);
        if (requestProperties != null) {
            for (Map.Entry<String, String> requestProperty : requestProperties.entrySet()) {
                urlConnection.setRequestProperty(requestProperty.getKey(), requestProperty.getValue());
            }
        }
        if (data != null) {
            OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());
            out.write(data);
            out.close();
        }
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());
        return convertInputStreamToByteArray(in);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

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From source file:controllers.IndexServlet.java

private static void Convert(HttpServletRequest request, HttpServletResponse response, PrintWriter writer) {
    response.setContentType("text/plain");

    try {/*  www.j a v a 2  s  .c om*/
        String fileName = request.getParameter("filename");
        String fileUri = DocumentManager.GetFileUri(fileName);
        String fileExt = FileUtility.GetFileExtension(fileName);
        FileType fileType = FileUtility.GetFileType(fileName);
        String internalFileExt = DocumentManager.GetInternalExtension(fileType);

        if (DocumentManager.GetConvertExts().contains(fileExt)) {
            String key = ServiceConverter.GenerateRevisionId(fileUri);

            Pair<Integer, String> res = ServiceConverter.GetConvertedUri(fileUri, fileExt, internalFileExt, key,
                    true);

            int result = res.getKey();
            String newFileUri = res.getValue();

            if (result != 100) {
                writer.write("{ \"step\" : \"" + result + "\", \"filename\" : \"" + fileName + "\"}");
                return;
            }

            String correctName = DocumentManager
                    .GetCorrectName(FileUtility.GetFileNameWithoutExtension(fileName) + internalFileExt);

            URL url = new URL(newFileUri);
            java.net.HttpURLConnection connection = (java.net.HttpURLConnection) url.openConnection();
            InputStream stream = connection.getInputStream();

            if (stream == null) {
                throw new Exception("Stream is null");
            }

            File convertedFile = new File(DocumentManager.StoragePath(correctName, null));
            try (FileOutputStream out = new FileOutputStream(convertedFile)) {
                int read;
                final byte[] bytes = new byte[1024];
                while ((read = stream.read(bytes)) != -1) {
                    out.write(bytes, 0, read);
                }

                out.flush();
            }

            connection.disconnect();

            //remove source file ?
            //File sourceFile = new File(DocumentManager.StoragePath(fileName, null));
            //sourceFile.delete();

            fileName = correctName;
        }

        writer.write("{ \"filename\" : \"" + fileName + "\"}");

    } catch (Exception ex) {
        writer.write("{ \"error\": \"" + ex.getMessage() + "\"}");
    }
}

---

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

private static boolean killRunningServer(String url) throws IOException {
    try {//from w  w w. j  a  v  a 2  s  . co  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
        out.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.meetingninja.csse.database.ContactDatabaseAdapter.java

public static List<Contact> getContacts(String userID) throws IOException {
    // Server URL setup
    String _url = getBaseUri().appendPath(userID).build().toString();
    // Establish connection
    URL url = new URL(_url);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    // add request header

    conn.setRequestMethod(IRequest.GET);
    addRequestHeader(conn, false);// ww w . j a  va 2  s  .  c o m
    // Get server response
    int responseCode = conn.getResponseCode();
    String response = getServerResponse(conn);
    List<Contact> contacts = new ArrayList<Contact>();
    List<String> contactIds = new ArrayList<String>();
    List<String> relationIds = new ArrayList<String>();
    final JsonNode contactsArray = MAPPER.readTree(response).get(Keys.User.CONTACTS);
    if (contactsArray.isArray()) {
        for (final JsonNode userNode : contactsArray) {
            relationIds.add(userNode.get(Keys.User.RELATIONID).asText());
            contactIds.add(userNode.get(Keys.User.CONTACTID).asText());
        }
    }

    conn.disconnect();
    for (int i = 0; i < contactIds.size(); i++) {

        User contact = UserDatabaseAdapter.getUserInfo(contactIds.get(i));
        if (contact != null) {
            Contact oneContact = new Contact(contact, relationIds.get(i));
            contacts.add(oneContact);
        }
    }
    return contacts;
}

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From source file:Main.java

/**
 * Do an HTTP POST and return the data as a byte array.
 *///from w  w  w. j  a  v  a 2s .  co  m
public static byte[] executePost(String url, byte[] data, Map<String, String> requestProperties)
        throws MalformedURLException, IOException {
    HttpURLConnection urlConnection = null;
    try {
        urlConnection = (HttpURLConnection) new URL(url).openConnection();
        urlConnection.setRequestMethod("POST");
        urlConnection.setDoOutput(data != null);
        urlConnection.setDoInput(true);
        if (requestProperties != null) {
            for (Map.Entry<String, String> requestProperty : requestProperties.entrySet()) {
                urlConnection.setRequestProperty(requestProperty.getKey(), requestProperty.getValue());
            }
        }
        if (data != null) {
            OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());
            out.write(data);
            out.close();
        }
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());
        return convertInputStreamToByteArray(in);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

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From source file:no.ntnu.wifimanager.ServerUtilities.java

/**
 * Issue a POST request to server.//from w  ww.j a  va2s  .c  o  m
 *
 * @param serverUrl POST address.
 * @param params request parameters.
 *
 * @throws IOException propagated from POST.
 */
public static void HTTPpost(String serverUrl, Map<String, String> params, String contentType)
        throws IOException {
    URL url;
    try {
        url = new URL(serverUrl);
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("invalid url: " + serverUrl);
    }
    StringBuilder bodyBuilder = new StringBuilder();
    Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
    // constructs the POST body using the parameters
    while (iterator.hasNext()) {
        Entry<String, String> param = iterator.next();
        bodyBuilder.append(param.getKey()).append('=').append(param.getValue());
        if (iterator.hasNext()) {
            bodyBuilder.append('&');
        }
    }
    String body = bodyBuilder.toString();
    Log.v(LOG_TAG, "Posting '" + body + "' to " + url);
    byte[] bytes = body.getBytes();
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setFixedLengthStreamingMode(bytes.length);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", contentType);
        // post the request
        OutputStream out = conn.getOutputStream();
        out.write(bytes);
        out.close();
        // handle the response
        int status = conn.getResponseCode();

        if (status != 200) {
            throw new IOException("Post failed with error code " + status);
        }
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

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From source file:com.google.android.apps.gutenberg.provider.SyncAdapter.java

private static String getCookie(String authToken) throws IOException {
    HttpURLConnection connection = null;
    try {//from w w  w.  j a  v  a 2  s  .  co m
        connection = (HttpURLConnection) new URL(
                BuildConfig.HOST + "/_ah/login?continue=http://localhost/&auth=" + authToken).openConnection();
        connection.setInstanceFollowRedirects(false);
        connection.connect();
        if (connection.getResponseCode() != 302) {
            Log.e(TAG, "Cannot fetch the cookie: " + connection.getResponseCode());
            return null;
        }
        String cookie = connection.getHeaderField("Set-Cookie");
        if (!cookie.contains("SACSID")) {
            return null;
        }
        return cookie;
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
    }
}

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From source file:com.brobwind.brodm.NetworkUtils.java

public static void deviceInfo(String path, OnMessage callback) {
    try {//w w  w. j  a va 2s  .co  m
        URL url = new URL(path + "/privet/info");
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestProperty("Authorization", "Basic anonymous");
        urlConnection.setRequestProperty("Content-Type", "application/json");
        urlConnection.connect();
        try {
            InputStream in = new BufferedInputStream(urlConnection.getInputStream());
            BufferedReader bufReader = new BufferedReader(new InputStreamReader(in));
            StringBuilder sb = new StringBuilder();
            for (String line = bufReader.readLine(); line != null;) {
                sb.append(line).append("\n");
                line = bufReader.readLine();
            }

            callback.onMessage(sb.toString(), null);
            return;
        } finally {
            urlConnection.disconnect();
        }
    } catch (MalformedURLException muex) {
        Log.e(TAG, "Malformed url: " + path);
        callback.onMessage(null, muex.getMessage());
    } catch (Exception e) {
        e.printStackTrace();
        callback.onMessage(null, e.getMessage());
    }
}

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