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:eu.eexcess.ddb.recommender.PartnerConnector.java

/**
 * Opens a HTTP connection, gets the response and converts into to a String.
 * /*from  w w  w. ja  v  a2s .co m*/
 * @param urlStr Servers URL
 * @param properties Keys and values for HTTP request properties
 * @return Servers response
 * @throws IOException  If connection could not be established or response code is !=200
 */
public static String httpGet(String urlStr, HashMap<String, String> properties) throws IOException {
    if (properties == null) {
        properties = new HashMap<String, String>();
    }
    // open HTTP connection with URL
    URL url = new URL(urlStr);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    // set properties if any do exist
    for (String key : properties.keySet()) {
        conn.setRequestProperty(key, properties.get(key));
    }
    // test if request was successful (status 200)
    if (conn.getResponseCode() != 200) {
        throw new IOException(conn.getResponseMessage());
    }
    // buffer the result into a string
    InputStreamReader isr = new InputStreamReader(conn.getInputStream(), "UTF-8");
    BufferedReader br = new BufferedReader(isr);
    StringBuilder sb = new StringBuilder();
    String line;
    while ((line = br.readLine()) != null) {
        sb.append(line);
    }
    br.close();
    isr.close();
    conn.disconnect();
    return sb.toString();
}

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From source file:com.gallatinsystems.common.util.S3Util.java

public static boolean putObjectAcl(String bucketName, String objectKey, ACL acl, String awsAccessId,
        String awsSecretKey) throws IOException {

    final String date = getDate();
    final URL url = new URL(String.format(S3_URL, bucketName, objectKey) + "?acl");
    final String payload = String.format(PUT_PAYLOAD_ACL, date, acl.toString(), bucketName, objectKey);
    final String signature = MD5Util.generateHMAC(payload, awsSecretKey);
    HttpURLConnection conn = null;
    try {/*  www  .j a v  a2s.co m*/

        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestMethod("PUT");
        conn.setRequestProperty("Date", date);
        conn.setRequestProperty("x-amz-acl", acl.toString());
        conn.setRequestProperty("Authorization", "AWS " + awsAccessId + ":" + signature);

        int status = conn.getResponseCode();

        if (status != 200 && status != 201) {
            log.severe("Error setting ACL for: " + url.toString());
            log.severe(IOUtils.toString(conn.getInputStream()));
            return false;
        }
        return true;
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

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From source file:com.netflix.raigad.utils.SystemUtils.java

public static String getDataFromUrl(String url) {
    try {/* w  w w. j  a  v  a2s  . c  o  m*/
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setConnectTimeout(1000);
        conn.setReadTimeout(1000);
        conn.setRequestMethod("GET");
        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Unable to get data for URL " + url);
        }
        byte[] b = new byte[2048];
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataInputStream d = new DataInputStream((FilterInputStream) conn.getContent());
        int c = 0;
        while ((c = d.read(b, 0, b.length)) != -1)
            bos.write(b, 0, c);
        String return_ = new String(bos.toByteArray(), Charsets.UTF_8);
        logger.info("Calling URL API: {} returns: {}", url, return_);
        conn.disconnect();
        return return_;
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }

}

---

From source file:com.abid_mujtaba.bitcoin.tracker.network.Client.java

private static String get(String url_string) throws ClientException {
    HttpURLConnection connection = null; // NOTE: fetchImage is set up to use HTTP not HTTPS

    try {//from w  w  w  .  j  a va  2 s. co m
        URL url = new URL(url_string);
        connection = (HttpURLConnection) url.openConnection();

        connection.setConnectTimeout(CONNECTION_TIMEOUT);
        connection.setReadTimeout(READ_TIMEOUT);

        InputStream is = new BufferedInputStream(connection.getInputStream());

        int response_code;

        if ((response_code = connection.getResponseCode()) != 200) {
            throw new ClientException("Error code returned by response: " + response_code);
        }

        return InputStreamToString(is);
    } catch (SocketTimeoutException e) {
        throw new ClientException("Socket timed out.", e);
    } catch (IOException e) {
        throw new ClientException("IO Exception raised while attempting to GET response.", e);
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
    }
}

---

From source file:io.github.retz.executor.FileManager.java

private static void fetchHTTPFile(String file, String dest) throws IOException {
    URL url = new URL(file);

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("GET");

    conn.setDoOutput(true);//from  ww  w .  j  a  v a2  s .c om
    java.nio.file.Path path = Paths.get(file).getFileName();
    if (path == null) {
        throw new FileNotFoundException(file);
    }
    String filename = path.toString();
    InputStream input = null;
    try (FileOutputStream output = new FileOutputStream(dest + "/" + filename)) {
        input = conn.getInputStream();
        byte[] buffer = new byte[65536];
        int bytesRead = 0;
        while ((bytesRead = input.read(buffer)) != -1) {
            output.write(buffer, 0, bytesRead);
        }
    } catch (IOException e) {
        LOG.debug(e.getMessage());
        throw e;
    } finally {
        if (input != null)
            input.close();
    }
    conn.disconnect();
    LOG.info("Download finished: {}", file);
}

---

From source file:dictinsight.utils.io.HttpUtils.java

public static String getDataFromOtherServer(String url) {
    String rec = null;/*from  w ww  .  j a v  a 2s .c  om*/
    BufferedReader reader = null;
    HttpURLConnection connection = null;
    try {
        URL srcUrl = new URL(url);
        connection = (HttpURLConnection) srcUrl.openConnection();
        connection.setConnectTimeout(1000 * 10);
        connection.connect();
        reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        rec = reader.readLine();
    } catch (Exception e) {
        System.out.println("get date from " + url + " error!");
        e.printStackTrace();
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        if (connection != null)
            connection.disconnect();
    }
    return rec;
}

---

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

/**
 * @description /*from  w  w  w  .jav a  2 s  . com*/
 * ??: POST 
 * @return       : 
 * @throws IOException 
 * @throws NoSuchProviderException 
 * @throws NoSuchAlgorithmException 
 * @throws KeyManagementException 
 */
public static String post(String url, String params)
        throws KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException, IOException {
    HttpURLConnection http = null;
    if (isHttps(url)) {
        http = initHttps(url, _POST, null);
    } else {
        http = initHttp(url, _POST, null);
    }
    OutputStream out = http.getOutputStream();
    out.write(params.getBytes(DEFAULT_CHARSET));
    out.flush();
    out.close();

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

---

From source file:com.appdynamics.common.RESTClient.java

public static void sendPost(String urlString, String input, String apiKey) {
    try {//from  w  w w  .j ava  2 s.  c om
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json");

        conn.setRequestProperty("Authorization",
                "Basic " + new String(Base64.encodeBase64((apiKey).getBytes())));

        OutputStream os = conn.getOutputStream();
        os.write(input.getBytes());
        os.flush();

        if (conn.getResponseCode() != HttpURLConnection.HTTP_CREATED) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output;
        logger.info("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            logger.info(output);
        }

        conn.disconnect();

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }

}

---

From source file:Main.java

static String validGet(URL url) throws IOException {
    String html = "";
    HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.STRICT_HOSTNAME_VERIFIER;
    HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
    // TODO ensure HttpsURLConnection.setDefaultSSLSocketFactory isn't
    // required to be reset like hostnames are
    HttpURLConnection conn = null;
    try {//  www .j a  v a 2 s.c om
        conn = (HttpURLConnection) url.openConnection();
        conn.setUseCaches(false);
        conn.setRequestMethod("GET");
        setBasicAuthentication(conn, url);
        int status = conn.getResponseCode();
        if (status != 200) {
            Logd(TAG, "Failed to get from server, returned code: " + status);
            throw new IOException("Get failed with error code " + status);
        } else {
            InputStreamReader in = new InputStreamReader(conn.getInputStream());
            BufferedReader br = new BufferedReader(in);
            String decodedString;
            while ((decodedString = br.readLine()) != null) {
                html += decodedString;
            }
            in.close();
        }
    } catch (IOException e) {
        Logd(TAG, "Failed to get from server: " + e.getMessage());
    }
    if (conn != null) {
        conn.disconnect();
    }
    return html;
}

---

From source file:br.eb.ime.pfc.domain.GeoServerCommunication.java

private static void redirectStream(String urlName, HttpServletRequest request, HttpServletResponse response) {
    URL url = null;//from w  w  w. ja  va  2s .c o  m
    try {
        url = new URL(urlName);
    } catch (MalformedURLException e) {
        //Internal error, the user will receive no data.
        sendError(HTTP_STATUS.BAD_REQUEST, response);
        return;
    }
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.addRequestProperty("Authorization", "Basic " + BASE64_AUTHORIZATION);
        //conn.setRequestMethod("GET");
        //conn.setDoOutput(true);
        conn.connect();
    } catch (IOException e) {
        sendError(HTTP_STATUS.INTERNAL_ERROR, response);
        return;
    }

    try (InputStream is = conn.getInputStream(); OutputStream os = response.getOutputStream()) {
        response.setContentType(conn.getContentType());
        IOUtils.copy(is, os);
    } catch (IOException e) {
        request.getServletContext().log("IO");
        sendError(HTTP_STATUS.INTERNAL_ERROR, response);
        return;
    } finally { //Close connection to save resources
        conn.disconnect();
    }
}

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