Example usage for java.net URLConnection getInputStream

List of usage examples for java.net URLConnection getInputStream

  1. HOME
  2. Java
  3. java
  4. java.net.*
  5. URLConnection
  6. getInputStream

Introduction

In this page you can find the example usage for java.net URLConnection getInputStream.

Prototype

public InputStream getInputStream() throws IOException

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:mc.lib.network.NetworkHelper.java

public static void saveToFile(String url, File file) {
    InputStream is = null;// w w w .  j  a v a 2 s.c  o  m
    OutputStream os = null;
    try {
        URLConnection c = new URL(url).openConnection();
        c.connect();
        is = c.getInputStream();
        os = new FileOutputStream(file);
        StreamHelper.copyNetworkStream(is, os, c.getReadTimeout());
    } catch (MalformedURLException e) {
        Log.e(LOGTAG, "Wrong url format", e);
    } catch (Exception e) {
        Log.e(LOGTAG, "Can not open stream", e);
    } finally {
        StreamHelper.close(os);
        StreamHelper.close(is);
    }
}

From source file:mc.lib.network.NetworkHelper.java

public static String getAsText(String url, String encoding) {
    InputStream is = null;//w ww  . ja v a2s.  c  o m
    try {
        URLConnection c = new URL(url).openConnection();
        c.connect();
        is = c.getInputStream();
        if (c.getContentEncoding() != null)
            encoding = c.getContentEncoding();
        return StreamHelper.readNetworkStream(is, encoding, c.getReadTimeout());
    } catch (MalformedURLException e) {
        Log.e(LOGTAG, "Wrong url format", e);
    } catch (Exception e) {
        Log.e(LOGTAG, "Cannot get text", e);
    } finally {
        StreamHelper.close(is);
    }
    return null;
}

From source file:biz.wolschon.finance.jgnucash.helper.HttpFetcher.java

/**
 * Fetch the given URL with http-basic-auth.
 * @param url the URL/*w w  w.j a v  a  2s . c  om*/
 * @param username username
 * @param password password
 * @return the page-content or null
 */
public static InputStream fetchURLStream(final URL url, final String username, final String password) {

    try {
        String userPassword = username + ":" + password;

        // Encode String
        String encoding = new sun.misc.BASE64Encoder().encode(userPassword.getBytes());

        URLConnection uc = url.openConnection();
        uc.setRequestProperty("Authorization", "Basic " + encoding);
        return uc.getInputStream();
    } catch (MalformedURLException e) {
        e.printStackTrace();
        LOGGER.error("cannot fetch malformed URL " + url, e);
        return null;
    } catch (IOException e) {
        e.printStackTrace();
        LOGGER.error("cannot fetch URL " + url, e);
        return null;
    }
}

From source file:Main.java

public static InputStream getInputEncoding(URLConnection connection) throws IOException {
    InputStream in;//from ww  w  .ja  va2 s  .  c om
    String encoding = connection.getContentEncoding();
    if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
        in = new GZIPInputStream(connection.getInputStream());
    } else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
        in = new InflaterInputStream(connection.getInputStream(), new Inflater(true));
    } else {
        in = connection.getInputStream();
    }
    return in;
}

From source file:com.hack23.cia.service.external.common.impl.XmlAgentImpl.java

/**
 * Read input stream./*from  w w  w  .ja  v a 2s.  co m*/
 *
 * @param accessUrl
 *            the access url
 * @return the string
 * @throws Exception
 *             the exception
 */
private static String readInputStream(final String accessUrl) throws Exception {
    final URL url = new URL(accessUrl.replace(" ", ""));

    final URLConnection connection = url.openConnection();

    final InputStream stream = connection.getInputStream();

    final BufferedReader inputStream = new BufferedReader(new InputStreamReader(stream));

    return readWithStringBuffer(inputStream);
}

From source file:com.vaadin.tools.ReportUsage.java

private static void doHttpGet(String userAgent, String url) {
    Throwable caught;//w  w  w .  j a va2  s  .co m
    InputStream is = null;
    try {
        URL urlToGet = new URL(url);
        URLConnection conn = urlToGet.openConnection();
        conn.setRequestProperty(USER_AGENT, userAgent);
        is = conn.getInputStream();
        // TODO use the results
        IOUtils.toByteArray(is);
        return;
    } catch (MalformedURLException e) {
        caught = e;
    } catch (IOException e) {
        caught = e;
    } finally {
        IOUtils.closeQuietly(is);
    }

    Logger.getLogger(ReportUsage.class.getName())
            .fine("Caught an exception while executing HTTP query: " + caught.getMessage());
}

From source file:com.vish.phishDetect.Web_Utilities.java

/**
* @param _url/*from ww  w  .ja v  a  2s .  c o m*/
 * @return google page rank of given url if it exists else returns -10
 */
public static int getPageRank(String _url) {
    String domain = _url;
    String result = "";

    JenkinsHash jenkinsHash = new JenkinsHash();
    long hash = jenkinsHash.hash(("info:" + domain).getBytes());

    //Append a 6 in front of the hashing value.
    String url = "http://toolbarqueries.google.com/tbr?client=navclient-auto&hl=en&" + "ch=6" + hash
            + "&ie=UTF-8&oe=UTF-8&features=Rank&q=info:" + domain;

    //System.out.println("Sending request to : " + url);

    try {
        URLConnection conn = new URL(url).openConnection();

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

        String input;
        while ((input = br.readLine()) != null) {

            // What Google returned? Example : Rank_1:1:9, PR = 9
            //System.out.println(input);

            result = input.substring(input.lastIndexOf(":") + 1);
        }
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }
    System.out.println("pr " + result);
    if ("".equals(result)) {
        return -5;
    } else {
        return Integer.valueOf(result);
    }

}

From source file:$.FileUtils.java

public static void urlToPath(URL url, File fOut) throws IOException {
        URLConnection uc = url.openConnection();
        logger.info("ContentType: " + uc.getContentType());
        InputStream in = uc.getInputStream();
        org.apache.commons.io.FileUtils.copyInputStreamToFile(in, fOut);
        logger.info("File of length " + fOut.length() + " created from URL " + url.toString());
        in.close();//from  ww w  .j  a v a 2  s  .  c o m
    }

From source file:at.illecker.sentistorm.commons.util.io.IOUtils.java

public static InputStream getInputStream(String fileOrUrl, boolean unzip) {
    InputStream in = null;//  w  w  w  .  j  a  va  2 s.co  m
    try {
        if (fileOrUrl.matches("https?://.*")) {
            URL u = new URL(fileOrUrl);
            URLConnection uc = u.openConnection();
            in = uc.getInputStream();
        } else {
            // 1) check if file is within jar
            in = IOUtils.class.getClassLoader().getResourceAsStream(fileOrUrl);

            // windows File.separator is \, but getting resources only works with /
            if (in == null) {
                in = IOUtils.class.getClassLoader().getResourceAsStream(fileOrUrl.replaceAll("\\\\", "/"));
            }

            // 2) if not found in jar, load from the file system
            if (in == null) {
                in = new FileInputStream(fileOrUrl);
            }
        }

        // unzip if necessary
        if ((unzip) && (fileOrUrl.endsWith(".gz"))) {
            in = new GZIPInputStream(in, GZIP_FILE_BUFFER_SIZE);
        }

        // buffer input stream
        in = new BufferedInputStream(in);

    } catch (FileNotFoundException e) {
        LOG.error("FileNotFoundException: " + e.getMessage());
    } catch (IOException e) {
        LOG.error("IOException: " + e.getMessage());
    }

    return in;
}

From source file:ota.otaupdates.utils.Utils.java

public static void DownloadFromUrl(String download_url, String fileName) {
    final String TAG = "Downloader";

    if (!isMainThread()) {
        try {//from   w  w  w .j  ava  2 s. co  m
            URL url = new URL(download_url);

            if (!new File(DL_PATH).isDirectory()) {
                if (!new File(DL_PATH).mkdirs()) {
                    Log.e(TAG, "Creating the directory " + DL_PATH + "failed");
                }
            }

            File file = new File(DL_PATH + fileName);

            long startTine = System.currentTimeMillis();
            Log.d(TAG, "Beginning download of " + url.getPath() + " to " + DL_PATH + fileName);

            /*
             * Open a connection and define Streams
             */
            URLConnection ucon = url.openConnection();
            InputStream is = ucon.getInputStream();
            BufferedInputStream bis = new BufferedInputStream(is);

            /*
             * Read bytes until there is nothing left
             */
            ByteArrayBuffer baf = new ByteArrayBuffer(50);
            int current = 0;
            while ((current = bis.read()) != -1) {
                baf.append((byte) current);
            }

            /* Convert Bytes to a String */
            FileOutputStream fos = new FileOutputStream(file);
            fos.write(baf.toByteArray());
            fos.close();

            Log.d(TAG,
                    "Download finished in " + ((System.currentTimeMillis() - startTine) / 1000) + " seconds");
        } catch (Exception e) {
            Log.e(TAG, "Error: " + e);
            e.printStackTrace();
        }
    } else {
        Log.e(TAG, "Tried to run in Main Thread. Aborting...");
    }
}