Example usage for java.net HttpURLConnection setUseCaches

List of usage examples for java.net HttpURLConnection setUseCaches

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Introduction

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

Prototype

public void setUseCaches(boolean usecaches)

Source Link

Document

Sets the value of the useCaches field of this URLConnection to the specified value.

Usage

From source file:org.bigbluebutton.impl.BBBProxyImpl.java

/** Make an API call */
public static Map<String, Object> doAPICall(String query) {
    Map<String, Object> response = new HashMap<String, Object>();

    StringBuilder urlStr = new StringBuilder(query);
    try {//from ww w .j a v a2s .c  o m
        // open connection
        log.debug("doAPICall.call: " + query);

        URL url = new URL(urlStr.toString());
        HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();
        httpConnection.setUseCaches(false);
        httpConnection.setDoOutput(true);
        httpConnection.setRequestMethod("GET");
        httpConnection.connect();

        int responseCode = httpConnection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            // read response
            InputStreamReader isr = null;
            BufferedReader reader = null;
            StringBuilder xml = new StringBuilder();
            try {
                isr = new InputStreamReader(httpConnection.getInputStream(), "UTF-8");
                reader = new BufferedReader(isr);
                String line = reader.readLine();
                while (line != null) {
                    if (!line.startsWith("<?xml version=\"1.0\"?>"))
                        xml.append(line.trim());
                    line = reader.readLine();
                }
            } finally {
                if (reader != null)
                    reader.close();
                if (isr != null)
                    isr.close();
            }
            httpConnection.disconnect();

            // parse response
            log.debug("doAPICall.responseXml: " + xml);
            //Patch to fix the NaN error
            String stringXml = xml.toString();
            stringXml = stringXml.replaceAll(">.\\s+?<", "><");

            DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder docBuilder;
            try {
                docBuilder = docBuilderFactory.newDocumentBuilder();
                Document dom = null;
                dom = docBuilder.parse(new InputSource(new StringReader(stringXml)));

                response = getNodesAsMap(dom, "response");
                log.debug("doAPICall.responseMap: " + response);

                String returnCode = (String) response.get("returncode");
                if (BBBProxy.APIRESPONSE_FAILED.equals(returnCode)) {
                    log.debug("doAPICall." + (String) response.get("messageKey") + ": Message="
                            + (String) response.get("message"));
                }

            } catch (ParserConfigurationException e) {
                log.debug("Failed to initialise BaseProxy: " + e.getMessage());
            }

        } else {
            log.debug("doAPICall.HTTPERROR: Message=" + "BBB server responded with HTTP status code "
                    + responseCode);
        }

    } catch (IOException e) {
        log.debug("doAPICall.IOException: Message=" + e.getMessage());
    } catch (SAXException e) {
        log.debug("doAPICall.SAXException: Message=" + e.getMessage());
    } catch (IllegalArgumentException e) {
        log.debug("doAPICall.IllegalArgumentException: Message=" + e.getMessage());
    } catch (Exception e) {
        log.debug("doAPICall.Exception: Message=" + e.getMessage());
    }
    return response;
}

From source file:flow.visibility.tapping.OpenDaylightHelper.java

/** The function for inserting the flow */

public static boolean installFlow(JSONObject postData, String user, String password, String baseURL) {

    StringBuffer result = new StringBuffer();

    /** Check the connection to ODP REST API page */

    try {/*from w  w w .  ja va  2s  .co  m*/

        if (!baseURL.contains("http")) {
            baseURL = "http://" + baseURL;
        }
        baseURL = baseURL + "/controller/nb/v2/flowprogrammer/default/node/OF/"
                + postData.getJSONObject("node").get("id") + "/staticFlow/" + postData.get("name");

        /** Create URL = base URL + container */
        URL url = new URL(baseURL);

        /** Create authentication string and encode it to Base64*/
        String authStr = user + ":" + password;
        String encodedAuthStr = Base64.encodeBase64String(authStr.getBytes());

        /** Create Http connection */
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        /** Set connection properties */
        connection.setRequestMethod("PUT");
        connection.setRequestProperty("Authorization", "Basic " + encodedAuthStr);
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setUseCaches(false);
        connection.setDoInput(true);
        connection.setDoOutput(true);

        /** Set JSON Post Data */
        OutputStream os = connection.getOutputStream();
        os.write(postData.toString().getBytes());
        os.close();

        /** Get the response from connection's inputStream */
        InputStream content = (InputStream) connection.getInputStream();
        BufferedReader in = new BufferedReader(new InputStreamReader(content));
        String line = "";
        while ((line = in.readLine()) != null) {
            result.append(line);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    /** checking the result of REST API connection */

    if ("success".equalsIgnoreCase(result.toString())) {
        return true;
    } else {
        return false;
    }
}

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

/**
 * Upload ontology content on specified dataset. Graph used is the default
 * one except if specified/*from   ww  w  . j a  v a 2s . c  o  m*/
 * 
 * @param ontology
 * @param datasetName
 * @param graphName
 * @throws IOException
 * @throws HttpException
 */
public static void uploadOntology(InputStream ontology, String datasetName, @Nullable String graphName)
        throws IOException, HttpException {
    graphName = Strings.emptyToNull(graphName);

    logger.info("upload ontology in dataset: " + datasetName + " graph:" + Strings.nullToEmpty(graphName));

    boolean createGraph = (graphName != null) ? true : false;
    String dataSetEncoded = URLEncoder.encode(datasetName, "UTF-8");
    String graphEncoded = createGraph ? URLEncoder.encode(graphName, "UTF-8") : null;

    URL url = new URL(HOST + '/' + dataSetEncoded + "/data" + (createGraph ? "?graph=" + graphEncoded : ""));

    final HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();

    String boundary = "------------------" + System.currentTimeMillis()
            + Long.toString(Math.round(Math.random() * 1000));

    httpConnection.setUseCaches(false);
    httpConnection.setRequestMethod("POST");
    httpConnection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
    httpConnection.setRequestProperty("Connection", "keep-alive");
    httpConnection.setRequestProperty("Cache-Control", "no-cache");

    // set content
    httpConnection.setDoOutput(true);
    final OutputStreamWriter out = new OutputStreamWriter(httpConnection.getOutputStream());
    out.write(BOUNDARY_DECORATOR + boundary + EOL);
    out.write("Content-Disposition: form-data; name=\"files[]\"; filename=\"ontology.owl\"" + EOL);
    out.write("Content-Type: application/octet-stream" + EOL + EOL);
    out.write(CharStreams.toString(new InputStreamReader(ontology)));
    out.write(EOL + BOUNDARY_DECORATOR + boundary + BOUNDARY_DECORATOR + EOL);
    out.close();

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

    // handle response
    switch (httpConnection.getResponseCode()) {
    case HttpURLConnection.HTTP_CREATED:
        checkState(createGraph, "bad state - code:" + httpConnection.getResponseCode() + " message: "
                + httpConnection.getResponseMessage());
        break;
    case HttpURLConnection.HTTP_OK:
        checkState(!createGraph, "bad state - code:" + httpConnection.getResponseCode() + " message: "
                + httpConnection.getResponseMessage());
        break;
    default:
        throw new HttpException(
                httpConnection.getResponseCode() + " message: " + httpConnection.getResponseMessage());
    }

}

From source file:com.openforevent.main.UserPosition.java

public static Map<String, Object> userLocationProperties(DispatchContext ctx,
        Map<String, ? extends Object> context) throws IOException {
    Delegator delegator = ctx.getDelegator();
    LocalDispatcher dispatcher = ctx.getDispatcher();
    String visitId = (String) context.get("visitId");

    if (Debug.infoOn()) {
        Debug.logInfo("In userLocationProperties", module);
    }//from  www . j a  va  2 s  .co m

    // get user coords
    coordsOfUserPosition(ctx, context);

    URL url = new URL(
            "https://graph.facebook.com/search?since=now&limit=4&q=2012-05-07&type=event&access_token="
                    + "AAACEdEose0cBAN9CB2ErxVN3JvK2gsrLslPt6e6Y7hJ0OrMEkMoyNwvHgSZCAEu2lCHZALlVWXZCW5JL8asMWoaPN3UAXFpZBsJJ6SvXRAAIZAXeTo0fD");
    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

    // Set properties of the connection
    urlConnection.setRequestMethod("GET");
    urlConnection.setDoInput(true);
    urlConnection.setDoOutput(true);
    urlConnection.setUseCaches(false);
    urlConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

    // Retrieve the output
    int responseCode = urlConnection.getResponseCode();
    InputStream inputStream;
    if (responseCode == HttpURLConnection.HTTP_OK) {
        inputStream = urlConnection.getInputStream();
    } else {
        inputStream = urlConnection.getErrorStream();
    }

    StringWriter writer = new StringWriter();
    IOUtils.copy(inputStream, writer, "UTF-8");
    String theString = writer.toString();

    Debug.logInfo("Facebook stream = ", theString);

    if (theString.contains("AuthException") == true) {
        url = new URL("https://graph.facebook.com/oauth/access_token?" + "client_id=   283576871735609&"
                + "client_secret=   5cf1fe4e531dff8de228bfac61b8fdfa&" + "grant_type=fb_exchange_token&"
                + "fb_exchange_token="
                + "AAACEdEose0cBAN9CB2ErxVN3JvK2gsrLslPt6e6Y7hJ0OrMEkMoyNwvHgSZCAEu2lCHZALlVWXZCW5JL8asMWoaPN3UAXFpZBsJJ6SvXRAAIZAXeTo0fD");

        HttpURLConnection urlConnection1 = (HttpURLConnection) url.openConnection();

        // Set properties of the connection
        urlConnection1.setRequestMethod("GET");
        urlConnection1.setDoInput(true);
        urlConnection1.setDoOutput(true);
        urlConnection1.setUseCaches(false);
        urlConnection1.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        // Retrieve the output
        int responseCode1 = urlConnection1.getResponseCode();
        InputStream inputStream1;
        if (responseCode == HttpURLConnection.HTTP_OK) {
            inputStream1 = urlConnection1.getInputStream();
        } else {
            inputStream1 = urlConnection1.getErrorStream();
        }

        StringWriter writer1 = new StringWriter();
        IOUtils.copy(inputStream1, writer1, "UTF-8");
        String theString1 = writer1.toString();

        Debug.logInfo("Facebook stream1 = ", theString1);

    }

    Map<String, Object> paramOut = FastMap.newInstance();
    paramOut.put("geoName", "aaa");
    paramOut.put("abbreviation", "bbb");
    return paramOut;

}

From source file:com.codelanx.codelanxlib.util.auth.UUIDFetcher.java

/**
 * Opens the connection to Mojang's profile API
 * //from ww w. j  av  a2s  . c  om
 * @since 0.0.1
 * @version 0.0.1
 * 
 * @return The {@link HttpURLConnection} object to the API server
 * @throws IOException If there is a problem opening the stream, a malformed
 *                     URL, or if there is a ProtocolException
 */
private static HttpURLConnection createConnection() throws IOException {
    URL url = new URL(UUIDFetcher.PROFILE_URL);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setUseCaches(false);
    connection.setDoInput(true);
    connection.setDoOutput(true);
    return connection;
}

From source file:fr.zcraft.zlib.tools.mojang.UUIDFetcher.java

/**
 * Opens a GET connection.//from www.j a va2s  .  c  o  m
 *
 * @param url The URL to connect to.
 *
 * @return A GET connection to this URL.
 * @throws IOException If an exception occurred while contacting the server.
 */
static private HttpURLConnection getGETConnection(String url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setRequestMethod("GET");
    connection.setUseCaches(false);
    connection.setDoInput(true);
    connection.setDoOutput(true);

    return connection;
}

From source file:com.keepsafe.switchboard.SwitchBoard.java

/**
 * Returns a String containing the server response from a GET request
 * @param address Valid http addess./* ww w . java  2s.c  om*/
 * @param params String of params. Multiple params seperated with &. No leading ? in string
 * @return Returns String from server or null when failed.
 */
private static String readFromUrlGET(String address, String params) {
    if (address == null || params == null)
        return null;

    String completeUrl = address + "?" + params;
    if (DEBUG)
        Log.d(TAG, "readFromUrl(): " + completeUrl);

    try {
        URL url = new URL(completeUrl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setUseCaches(false);
        connection.setDoOutput(true);

        // get response
        InputStream is = connection.getInputStream();
        InputStreamReader inputStreamReader = new InputStreamReader(is);
        BufferedReader bufferReader = new BufferedReader(inputStreamReader, 8192);
        String line = "";
        StringBuffer resultContent = new StringBuffer();
        while ((line = bufferReader.readLine()) != null) {
            if (DEBUG)
                Log.d(TAG, line);
            resultContent.append(line);
        }
        bufferReader.close();

        if (DEBUG)
            Log.d(TAG, "readFromUrl() result: " + resultContent.toString());

        return resultContent.toString();
    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return null;
}

From source file:com.gson.util.HttpKit.java

/**
 * /*  www  .  j  ava2  s.c  o m*/
 * @param url
 * @param params
 * @param file
 * @return
 * @throws IOException
 * @throws NoSuchAlgorithmException
 * @throws NoSuchProviderException
 * @throws KeyManagementException
 */
public static String upload(String url, File file)
        throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
    String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // ?  
    StringBuffer bufferRes = null;
    URL urlGet = new URL(url);
    HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
    conn.setDoOutput(true);
    conn.setDoInput(true);
    conn.setUseCaches(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("connection", "Keep-Alive");
    conn.setRequestProperty("user-agent",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");
    conn.setRequestProperty("Charsert", "UTF-8");
    conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

    OutputStream out = new DataOutputStream(conn.getOutputStream());
    byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// ??  
    StringBuilder sb = new StringBuilder();
    sb.append("--");
    sb.append(BOUNDARY);
    sb.append("\r\n");
    sb.append("Content-Disposition: form-data;name=\"media\";filename=\"" + file.getName() + "\"\r\n");
    sb.append("Content-Type:application/octet-stream\r\n\r\n");
    byte[] data = sb.toString().getBytes();
    out.write(data);
    DataInputStream fs = new DataInputStream(new FileInputStream(file));
    int bytes = 0;
    byte[] bufferOut = new byte[1024];
    while ((bytes = fs.read(bufferOut)) != -1) {
        out.write(bufferOut, 0, bytes);
    }
    out.write("\r\n".getBytes()); //  
    fs.close();
    out.write(end_data);
    out.flush();
    out.close();

    // BufferedReader???URL?  
    InputStream in = conn.getInputStream();
    BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
    String valueString = null;
    bufferRes = new StringBuffer();
    while ((valueString = read.readLine()) != null) {
        bufferRes.append(valueString);
    }
    in.close();
    if (conn != null) {
        // 
        conn.disconnect();
    }
    return bufferRes.toString();
}

From source file:com.hichengdai.qlqq.front.util.HttpKit.java

/**
 * /*from w  ww. j  a  v  a 2s . co m*/
 * 
 * @param url
 * @param params
 * @param file
 * @return
 * @throws IOException
 * @throws NoSuchAlgorithmException
 * @throws NoSuchProviderException
 * @throws KeyManagementException
 */
public static String upload(String url, File file)
        throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
    String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // ?
    StringBuffer bufferRes = null;
    URL urlGet = new URL(url);
    HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
    conn.setDoOutput(true);
    conn.setDoInput(true);
    conn.setUseCaches(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("connection", "Keep-Alive");
    conn.setRequestProperty("user-agent",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");
    conn.setRequestProperty("Charsert", "UTF-8");
    conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

    OutputStream out = new DataOutputStream(conn.getOutputStream());
    byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// ??
    StringBuilder sb = new StringBuilder();
    sb.append("--");
    sb.append(BOUNDARY);
    sb.append("\r\n");
    sb.append("Content-Disposition: form-data;name=\"media\";filename=\"" + file.getName() + "\"\r\n");
    sb.append("Content-Type:application/octet-stream\r\n\r\n");
    byte[] data = sb.toString().getBytes();
    out.write(data);
    DataInputStream fs = new DataInputStream(new FileInputStream(file));
    int bytes = 0;
    byte[] bufferOut = new byte[1024];
    while ((bytes = fs.read(bufferOut)) != -1) {
        out.write(bufferOut, 0, bytes);
    }
    out.write("\r\n".getBytes()); // 
    fs.close();
    out.write(end_data);
    out.flush();
    out.close();

    // BufferedReader???URL?
    InputStream in = conn.getInputStream();
    BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
    String valueString = null;
    bufferRes = new StringBuffer();
    while ((valueString = read.readLine()) != null) {
        bufferRes.append(valueString);
    }
    in.close();
    if (conn != null) {
        // 
        conn.disconnect();
    }
    return bufferRes.toString();
}

From source file:com.concentricsky.android.khanacademy.util.ThumbnailManager.java

/**
 * Attempt to download a bitmap from the given url.
 * /*from   w w  w .  j  a  va 2  s  . c  o  m*/
 * @param url The url of the thumbnail to download.
 * @return A {@link Bitmap} of the thumbnail, or {@code null} if it cannot be downloaded and is not cached locally.
 * @throws java.net.MalformedURLException if the url is malformed!
 * @throws java.io.IOException if a connection cannot be opened to the given url, or if an IOException is thrown by {@link ResponseCache} or by {@link CacheResponse}.
 */
public static Bitmap bitmap_from_url(String url) throws java.net.MalformedURLException, IOException {
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setConnectTimeout(CONNECT_TIMEOUT);
    connection.setUseCaches(true);

    InputStream input = null;
    try {
        connection.connect();
        input = connection.getInputStream();
        return BitmapFactory.decodeStream(input);
    } catch (SocketTimeoutException e) {
        e.printStackTrace();
        return null;
    } finally {
        if (input != null)
            input.close();
    }
}