Example usage for java.net HttpURLConnection disconnect

List of usage examples for java.net HttpURLConnection disconnect

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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:de.mpg.escidoc.services.syndication.feed.Feed.java

/**
 * Search for the items for feed entries population. 
 * The HTTP request to the SearchAndExport WEB interface is used 
 * @param query is CQL query./*from  w w w  . jav a 2 s .  com*/
 * @param maximumRecords is the limit of the search 
 * @param sortKeys 
 * @return item list XML
 * @throws SyndicationException
 */
private String performSearch(String query, String maximumRecords, String sortKeys) throws SyndicationException {
    URL url;
    try {
        url = new URL(paramHash.get("${baseUrl}") + "/search/SearchAndExport?" + "cqlQuery="
                + URLEncoder.encode(query, "UTF-8") + "&maximumRecords="
                + URLEncoder.encode(maximumRecords, "UTF-8") + "&sortKeys="
                + URLEncoder.encode(sortKeys, "UTF-8") + "&exportFormat=ESCIDOC_XML_V13"
                + "&sortOrder=descending" + "&language=all");
    } catch (Exception e) {
        throw new SyndicationException("Wrong URL:", e);
    }

    Object content;
    URLConnection uconn;

    try {
        uconn = ProxyHelper.openConnection(url);
        if (!(uconn instanceof HttpURLConnection))
            throw new IllegalArgumentException("URL protocol must be HTTP.");
        HttpURLConnection conn = (HttpURLConnection) uconn;

        InputStream stream = conn.getErrorStream();
        if (stream != null) {
            conn.disconnect();
            throw new SyndicationException(Utils.getInputStreamAsString(stream));
        } else if ((content = conn.getContent()) != null && content instanceof InputStream)
            content = Utils.getInputStreamAsString((InputStream) content);
        else {
            conn.disconnect();
            throw new SyndicationException("Cannot retrieve content from the HTTP response");
        }
        conn.disconnect();

        return (String) content;
    } catch (Exception e) {
        throw new SyndicationException(e);
    }

}

From source file:com.projity.pm.graphic.frames.ApplicationStartupFactory.java

protected void getCredentials() {
    String authType = getOpt("credentials", 0);
    if (authType != null) {
        if ("login".equals(authType)) {
            login = getOpt("credentials", 1);
            password = getOpt("credentials", 2);
        } else if ("session".equals(authType)) {
            String partnerConnectionString = getOpt("credentials", 2);
            String timestamp = getOpt("timestamp");
            long d = 0L;
            if (timestamp != null) {
                try {
                    d = System.currentTimeMillis() - Long.parseLong(timestamp);
                } catch (NumberFormatException e) {
                }/*from   w  ww  .  j  av  a 2  s .co  m*/
            }
            String sessionId = getOpt("credentials", 1);
            //if (sessionId!=null&&d<=SESSION_EXPIRATION)
            if (sessionId != null || partnerConnectionString != null)
                try {
                    Properties props = new Properties();
                    String urlString = serverUrl + "/" + Settings.WEB_APP
                            + ((partnerConnectionString == null) ? "" : "/partner")
                            + "/jnlp/projity_credentials.jnlp";
                    if (partnerConnectionString != null)
                        urlString += "?" + partnerConnectionString;
                    URL url = new URL(urlString);
                    HttpURLConnection http = (HttpURLConnection) url.openConnection();
                    if (sessionId != null)
                        http.setRequestProperty("Cookie", "JSESSIONID=" + sessionId);
                    //            if (partnerConnectionString == null) {
                    //               http.setRequestMethod("POST");
                    //            } else {
                    http.setRequestMethod("GET");
                    //            }
                    http.connect();

                    props.load(http.getInputStream());
                    http.disconnect();

                    //props.load((new URL(serverUrl+"/web/jnlp/projity_credentials.jnlp;jsessionid="+args[3])).openStream());
                    login = props.getProperty("login");
                    password = props.getProperty("password");
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
        }
    }
}

From source file:de.akquinet.engineering.vaadinator.timesheet.service.AbstractCouchDbService.java

protected JSONObject getCouch(String urlPart) throws IOException, MalformedURLException, JSONException {
    HttpURLConnection couchConn = null;
    BufferedReader couchRead = null;
    try {/*from   w  w w.  j  a va  2s  .c om*/
        couchConn = (HttpURLConnection) (new URL(couchUrl + (couchUrl.endsWith("/") ? "" : "/") + urlPart))
                .openConnection();
        couchRead = new BufferedReader(new InputStreamReader(couchConn.getInputStream()));
        StringBuffer jsonBuf = new StringBuffer();
        String line = couchRead.readLine();
        while (line != null) {
            jsonBuf.append(line);
            line = couchRead.readLine();
        }
        JSONObject couchObj = new JSONObject(jsonBuf.toString());
        return couchObj;
    } finally {
        if (couchRead != null) {
            couchRead.close();
        }
        if (couchConn != null) {
            couchConn.disconnect();
        }
    }
}

From source file:com.isdp.twitterposterandroid.GoogleManager.java

public String[] trySearch(String searchQuery, String searchEngineID) {
    try {/* w w  w . j av a 2s .  c o m*/
        String query = URLEncoder.encode(searchQuery);
        URL url = new URL("https://www.googleapis.com/customsearch/v1?key=" + API_KEY + "&cx=" + searchEngineID
                + "&q=" + query);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");

        InputStream inputStream = conn.getInputStream();
        String jsonStr = null;
        if (inputStream != null)
            jsonStr = Util.convertInputStreamToString(inputStream);

        JSONObject jsonObj = new JSONObject(
                jsonStr.substring(jsonStr.indexOf("{"), jsonStr.lastIndexOf("}") + 1));

        String[] results = null;

        if (searchEngineID.equals(SEARCH_WIKI))
            results = parseWiki(jsonObj);

        else if (searchEngineID.equals(SEARCH_YELP))
            results = parseYelp(jsonObj);

        conn.disconnect();

        return results;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:com.orange.oidc.tim.service.HttpOpenidConnect.java

static String getUserInfo(String server_url, String access_token) {
    // android.os.Debug.waitForDebugger();

    // check if server is valid
    if (isEmpty(server_url) || isEmpty(access_token)) {
        return null;
    }//w  w  w  .j  av a  2  s.c o  m

    String userinfo_endpoint = getEndpointFromConfigOidc("userinfo_endpoint", server_url);
    if (isEmpty(userinfo_endpoint)) {
        Logd(TAG, "getUserInfo : could not get endpoint on server : " + server_url);
        return null;
    }

    Logd(TAG, "getUserInfo : " + userinfo_endpoint);
    // build connection
    HttpURLConnection huc = getHUC(userinfo_endpoint);
    huc.setInstanceFollowRedirects(false);
    // huc.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

    huc.setRequestProperty("Authorization", "Bearer " + access_token);

    // default result
    String result = null;

    try {
        // try to establish connection 
        huc.connect();
        // get result
        int responseCode = huc.getResponseCode();
        Logd(TAG, "getUserInfo 2 response: " + responseCode);

        // if 200, read http body
        if (responseCode == 200) {
            InputStream is = huc.getInputStream();
            result = convertStreamToString(is);
            is.close();
        }

        // close connection
        huc.disconnect();

    } catch (Exception e) {
        Logd(TAG, "getUserInfo failed");
        e.printStackTrace();
    }

    return result;
}

From source file:com.zhonghui.tool.controller.HttpClient.java

/**
 * Response?/*from   ww w  .ja  v  a2  s  . c  o  m*/
 *
 * @param connection 
 * @param encoding ?
 * @return
 * @throws URISyntaxException
 * @throws IOException
 */
private InputStream responseInput(final HttpURLConnection connection, String encoding)
        throws URISyntaxException, IOException, Exception {
    InputStream in = null;
    try {
        if (200 == connection.getResponseCode()) {
            in = connection.getInputStream();
        } else {
            in = connection.getErrorStream();
        }
        logger.info("HTTP Return Status-Code:[" + connection.getResponseCode() + "]");
        return in;
    } catch (Exception e) {
        throw e;
    } finally {
        if (null != connection) {
            connection.disconnect();
        }
    }
}

From source file:co.cask.cdap.gateway.router.NettyRouterTestBase.java

@Test
public void testConnectionIdleTimeoutWithMultipleServers() throws Exception {
    defaultServer2.cancelRegistration();

    URL url = new URL(resolveURI(Constants.Router.GATEWAY_DISCOVERY_NAME, "/v2/ping"));
    HttpURLConnection urlConnection = openURL(url);
    Assert.assertEquals(200, urlConnection.getResponseCode());
    urlConnection.getInputStream().close();
    urlConnection.disconnect();

    // requests past this point will go to defaultServer2
    defaultServer1.cancelRegistration();
    defaultServer2.registerServer();//  w  ww . java 2  s . c o  m

    for (int i = 0; i < 4; i++) {
        // this is an assumption that CONNECTION_IDLE_TIMEOUT_SECS is more than 1 second
        TimeUnit.SECONDS.sleep(1);
        url = new URL(resolveURI(Constants.Router.GATEWAY_DISCOVERY_NAME, "/v1/ping/" + i));
        urlConnection = openURL(url);
        Assert.assertEquals(200, urlConnection.getResponseCode());
        urlConnection.getInputStream().close();
        urlConnection.disconnect();
    }

    // for the past 4 seconds, we've been making requests to defaultServer2; therefore, defaultServer1 will have closed
    // its single connection
    Assert.assertEquals(1, defaultServer1.getNumConnectionsOpened());
    Assert.assertEquals(1, defaultServer1.getNumConnectionsClosed());

    // however, the connection to defaultServer2 is not timed out, because we've been making requests to it
    Assert.assertEquals(1, defaultServer2.getNumConnectionsOpened());
    Assert.assertEquals(0, defaultServer2.getNumConnectionsClosed());

    defaultServer2.registerServer();
    defaultServer1.cancelRegistration();
    url = new URL(resolveURI(Constants.Router.GATEWAY_DISCOVERY_NAME, "/v2/ping"));
    urlConnection = openURL(url);
    Assert.assertEquals(200, urlConnection.getResponseCode());
    urlConnection.getInputStream().close();
    urlConnection.disconnect();
}

From source file:com.google.gdocsfs.GoogleDocs.java

public final int getContentLength(URL source) throws IOException {
    HttpURLConnection connection = null;
    try {/*  w ww.  jav  a  2  s  .  c o  m*/
        connection = getConnection(source, "HEAD");
        connection.connect();

        { // get content length
            int contentLength = -1;
            String contentLengthStr = connection.getHeaderField("Content-Length");
            if (contentLengthStr != null) {
                try {
                    contentLength = Integer.parseInt(contentLengthStr);
                } catch (NumberFormatException e) {
                    log.warn("Can't parse the content lenght.", e);
                }
            }
            return contentLength;
        }

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

From source file:com.gottibujiku.httpjsonexchange.main.HttpJSONExchange.java

/**
 * This method sends a GET request to the server.
 * It prepares the request by creating a valid URL with a query string(if any)
 * then adds the headers and then open a connection to the server; retrieves
 * response and return result as a JSON Object
 * /*from   ww  w  .  j a  v a  2  s .  c o m*/
 * @return a JSON object containing the response             
 */
public JSONObject sendGETRequest() {

    /* 1. Form the query string by concatenating param names and their values
     * 2. Add HTTP headers to the request and set request method to GET
     * 3. Open stream and read server response
     * 
     */
    if (fullDomainName == null) {
        throw new NullPointerException("No URL provided! Please provide one!");//No domain name was provided
    }
    JSONObject jsonResponse = null;
    URL url = null;//a url object to hold a complete URL
    try {
        url = new URL(fullDomainName + QUERY_SEPARATOR + getFormatedQueryString(queryParams));//a complete URL 
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection = addHeadersToRequest(headers, connection);//add headers to connection and get modified instance
        connection.setRequestProperty("Accept-Charset", UTF_CHARSET);//accept the given encoding
        //a call to connection.connect() is superfluous since connect will be called
        //implicitly when the stream is opened
        connection.setRequestMethod("GET");
        String jsonString = getServerResponse(connection);
        connection.disconnect();
        jsonResponse = new JSONObject(jsonString);//change the response into a json object      

    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;//return if the URL is malformed
    } catch (IOException e) {
        e.printStackTrace();
        return null;//if failed to open a connection
    } catch (JSONException e) {
        e.printStackTrace();
        return null;//invalid JSON response
    }

    return jsonResponse;

}

From source file:com.gottibujiku.httpjsonexchange.main.HttpJSONExchange.java

/**
 * This method sends a GET request to the server.
 * It prepares the request by creating a valid URL with a query string(if any)
 * then adds the headers and then open a connection to the server; retrieves
 * response and return result as a JSON Object
 * //from ww w  .ja v a 2  s. c  o  m
 * 
 * @param fullDomainName a fully qualified domain name including the protocol
 * @param queryParams    parameters to be sent in the query string
 * @param headers        additional headers
 * @return a JSON object containing the response             
 */

public JSONObject sendGETRequest(String fullDomainName, HashMap<String, String> queryParams,
        HashMap<String, String> headers) {

    /* 1. Form the query string by concatenating param names and their values
     * 2. Add HTTP headers to the request and set request method to GET
     * 3. Open stream and read server response
     * 
     */
    if (fullDomainName == null) {
        throw new NullPointerException("No URL provided! Please provide one!");//No domain name was provided
    }
    JSONObject jsonResponse = null;
    URL url = null;//a url object to hold a complete URL
    try {
        url = new URL(fullDomainName + QUERY_SEPARATOR + getFormatedQueryString(queryParams));//a complete URL 
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection = addHeadersToRequest(headers, connection);//add headers to connection and get modified instance
        connection.setRequestProperty("Accept-Charset", UTF_CHARSET);//accept the given encoding
        //a call to connection.connect() is superfluous since connect will be called
        //implicitly when the stream is opened
        connection.setRequestMethod("GET");
        String jsonString = getServerResponse(connection);
        connection.disconnect();
        jsonResponse = new JSONObject(jsonString);//change the response into a json object      

    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;//return if the URL is malformed
    } catch (IOException e) {
        e.printStackTrace();
        return null;//if failed to open a connection
    } catch (JSONException e) {
        e.printStackTrace();
        return null;//invalid JSON response
    }

    return jsonResponse;

}