Example usage for java.net HttpURLConnection getHeaderField

List of usage examples for java.net HttpURLConnection getHeaderField

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Introduction

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

Prototype

public String getHeaderField(int n)

Source Link

Document

Returns the value for the n th header field.

Usage

From source file:net.ymate.module.webproxy.WebProxy.java

private String __doParseContentBody(HttpURLConnection _conn, byte[] _content, String charset) throws Exception {
    if (StringUtils.contains(_conn.getHeaderField("Content-Encoding"), "gzip")) {
        ByteArrayInputStream _input = null;
        GZIPInputStream _gzip = null;
        ByteArrayOutputStream _output = null;
        try {/*from   w ww.  j  a v  a 2s  . c o m*/
            _input = new ByteArrayInputStream(_content);
            _gzip = new GZIPInputStream(_input);
            _output = new ByteArrayOutputStream();
            //
            IOUtils.copyLarge(_gzip, _output);
            return new String(_output.toByteArray(), charset);
        } finally {
            IOUtils.closeQuietly(_output);
            IOUtils.closeQuietly(_gzip);
            IOUtils.closeQuietly(_input);
        }
    }
    return new String(_content, charset);
}

From source file:org.mojohaus.plugins.site.MojohausPluginsMacro.java

private String getFinalUrl(String url) throws IOException {
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setInstanceFollowRedirects(false);
    conn.connect();//www.  j a  v a  2s  .c  o m
    conn.getInputStream();
    if (conn.getResponseCode() == 301 || conn.getResponseCode() == 302) {
        String redirectUrl = conn.getHeaderField("Location");
        return getFinalUrl(redirectUrl);
    }
    return url;
}

From source file:com.epic.framework.implementation.tapjoy.TapjoyURLConnection.java

/**
 * Gets the file size of the specified resource from the HTTP header field "content-length"
 * @param url                     URL of the specified resource.
 * @return                        content-length, null otherwise.
 *//*w  ww .  j  av a  2  s.  com*/
public String getContentLength(String url) {
    String contentLength = null;
    try {
        String requestURL = url;

        // Replaces all spaces.
        requestURL = requestURL.replaceAll(" ", "%20");

        TapjoyLog.i(TAPJOY_URL_CONNECTION, "requestURL: " + requestURL);

        URL httpURL = new URL(requestURL);
        HttpURLConnection connection = (HttpURLConnection) httpURL.openConnection();
        connection.setConnectTimeout(15000);
        connection.setReadTimeout(30000);
        contentLength = connection.getHeaderField("content-length");
    } catch (Exception e) {
        TapjoyLog.e(TAPJOY_URL_CONNECTION, "Exception: " + e.toString());
    }

    TapjoyLog.i(TAPJOY_URL_CONNECTION, "content-length: " + contentLength);

    return contentLength;
}

From source file:org.apache.olingo.fit.tecsvc.http.ODataVersionConformanceITCase.java

@Test
public void validODataMaxVersionHeader() throws Exception {
    URL url = new URL(SERVICE_URI + "ESAllPrim");

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(HttpMethod.GET.name());
    connection.setRequestProperty(HttpHeader.ODATA_MAX_VERSION, "5.0");
    connection.connect();/*from ww  w.  ja  v a  2  s. co m*/

    assertEquals("4.0", connection.getHeaderField(HttpHeader.ODATA_VERSION));

    final String content = IOUtils.toString(connection.getErrorStream());
    assertNotNull(content);
}

From source file:org.apache.axis2.transport.testkit.http.JavaNetClient.java

public void sendMessage(ClientOptions options, ContentType contentType, byte[] message) throws Exception {
    URL url = new URL(channel.getEndpointReference().getAddress());
    log.debug("Opening connection to " + url + " using " + URLConnection.class.getName());
    try {/*from   ww  w .j  a v  a2  s .c  om*/
        URLConnection connection = url.openConnection();
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setRequestProperty("Content-Type", contentType.toString());
        if (contentType.getBaseType().equals("text/xml")) {
            connection.setRequestProperty("SOAPAction", "");
        }
        OutputStream out = connection.getOutputStream();
        out.write(message);
        out.close();
        if (connection instanceof HttpURLConnection) {
            HttpURLConnection httpConnection = (HttpURLConnection) connection;
            log.debug("Response code: " + httpConnection.getResponseCode());
            log.debug("Response message: " + httpConnection.getResponseMessage());
            int i = 0;
            String headerValue;
            while ((headerValue = httpConnection.getHeaderField(i)) != null) {
                String headerName = httpConnection.getHeaderFieldKey(i);
                if (headerName != null) {
                    log.debug(headerName + ": " + headerValue);
                } else {
                    log.debug(headerValue);
                }
                i++;
            }
        }
        InputStream in = connection.getInputStream();
        IOUtils.copy(in, System.out);
        in.close();
    } catch (IOException ex) {
        log.debug("Got exception", ex);
        throw ex;
    }
}

From source file:org.wise.portal.presentation.web.controllers.teacher.project.AnalyzeProjectController.java

/**
 * Get the redirect location for the URL
 * @param urlString the url as a string//from  w ww. ja  va  2 s.  c  om
 * @return the redirect location
 * @throws MalformedURLException
 * @throws IOException
 */
private static String getRedirectLocation(String urlString) throws MalformedURLException, IOException {
    //create the URL object
    URL url = new URL(urlString);

    //create a connection to the url
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("GET");
    conn.connect();

    //get the redirect location
    String redirectLocation = conn.getHeaderField("Location");

    return redirectLocation;
}

From source file:Main.java

public Main() {
    JPanel inputPanel = new JPanel(new BorderLayout(3, 3));
    go.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            try {
                URL pageURL = new URL("http://www.google.com");
                HttpURLConnection urlConnection = (HttpURLConnection) pageURL.openConnection();
                int respCode = urlConnection.getResponseCode();
                String response = urlConnection.getResponseMessage();
                codeArea.setText("HTTP/1.x " + respCode + " " + response + "\n");
                int count = 1;
                while (true) {
                    String header = urlConnection.getHeaderField(count);
                    String key = urlConnection.getHeaderFieldKey(count);
                    if (header == null || key == null) {
                        break;
                    }/* w w  w . j a  v  a2  s.com*/
                    codeArea.append(urlConnection.getHeaderFieldKey(count) + ": " + header + "\n");
                    count++;
                }
                InputStream in = new BufferedInputStream(urlConnection.getInputStream());
                Reader r = new InputStreamReader(in);
                int c;
                while ((c = r.read()) != -1) {
                    codeArea.append(String.valueOf((char) c));
                }
                codeArea.setCaretPosition(1);
            } catch (Exception ee) {
            }
        }
    });
    inputPanel.add(BorderLayout.EAST, go);
    JScrollPane codeScroller = new JScrollPane(codeArea);
    add(BorderLayout.NORTH, inputPanel);
    add(BorderLayout.CENTER, codeScroller);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setSize(700, 500);
    this.setVisible(true);
}

From source file:org.apache.olingo.fit.tecsvc.http.BasicHttpITCase.java

@Test
public void testFormat() throws Exception {
    URL url = new URL(SERVICE_URI + "?$format=json");

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(HttpMethod.GET.name());
    connection.connect();/*from w  w  w . j a  v  a  2 s.c o m*/

    assertEquals(HttpStatusCode.OK.getStatusCode(), connection.getResponseCode());
    assertEquals(ContentType.JSON, ContentType.create(connection.getHeaderField(HttpHeader.CONTENT_TYPE)));
}

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

public final int getContentLength(URL source) throws IOException {
    HttpURLConnection connection = null;
    try {/*ww w .jav a 2s. 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.skcraft.launcher.launch.JavaRuntimeFetcher.java

private void download(String url, File destination) {
    if (destination.exists() && !destination.delete()) {
        log.log(Level.INFO, "Unable to clean up existing file {0} before downloading", destination);
        return;//from w  ww  . j ava2  s . c  o  m
    }

    int attempts = 0;
    while (attempts++ < 5) {
        InputStream inputStream = null;

        try {
            HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
            String length = connection.getHeaderField("Content-Length");
            if (length == null) {
                log.log(Level.INFO, "Download attempt {0} failed", attempts);
                Thread.sleep(500);
                continue;
            }

            long len = Long.parseLong(length);
            if (len <= 0) {
                log.log(Level.INFO, "Download attempt {0} failed", attempts);
                Thread.sleep(500);
                continue;
            }

            inputStream = connection.getInputStream();
            copyFile(inputStream, destination, SharedLocale.tr("runtimeFetcher.download"), len);
            return;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            Closer.close(inputStream);
        }
    }
}