Example usage for java.net URLConnection getContentLength

Introduction

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

Prototype

public int getContentLength() 

Source Link

Document

Returns the value of the content-length header field.

Usage

From source file:com.adito.extensions.actions.DefaultExtensionsAction.java

/**
 * Update selected extension/*from w  w  w.  jav a2s . c o  m*/
 * 
 * @param mapping mapping
 * @param form form
 * @param request request
 * @param response response
 * @return forward
 * @throws Exception on any error
 */
public ActionForward update(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    String id = request.getParameter("id");
    String version = request.getParameter("version");
    PolicyUtil.checkPermission(PolicyConstants.EXTENSIONS_RESOURCE_TYPE, PolicyConstants.PERM_CHANGE,
            getSessionInfo(request).getUser());
    URLConnection con = ExtensionStore.getInstance().downloadExtension(id, version);
    try {
        InputStream in = con.getInputStream();
        ExtensionBundle bundle = ExtensionStore.getInstance().updateExtension(id, in, request,
                con.getContentLength());
        if (bundle.isContainsPlugin())
            GlobalWarningManager.getInstance()
                    .addMultipleGlobalWarning(new GlobalWarning(GlobalWarning.MANAGEMENT_USERS,
                            new BundleActionMessage("extensions",
                                    "extensionStore.message.extensionUpdatedRestartRequired"),
                            DismissType.DISMISS_FOR_USER));
        ActionMessages msgs = new ActionMessages();
        msgs.add(Globals.MESSAGE_KEY,
                new ActionMessage("extensionStore.message.applicationUpdated", bundle.getName()));
        saveMessages(request, msgs);
    } catch (CoreException ce) {
        ActionMessages errs = new ActionMessages();
        errs.add(Globals.ERROR_KEY, ce.getBundleActionMessage());
        saveErrors(request, errs);
    }
    return new RedirectWithMessages(mapping.findForward("refresh"), request);
}

---

From source file:com.adito.extensions.actions.DefaultExtensionsAction.java

/**
 * Install selected extension/*from   w w w. j  av a  2 s  .co  m*/
 * 
 * @param mapping mapping
 * @param form form
 * @param request request
 * @param response response
 * @return forward
 * @throws Exception on any error
 */
public ActionForward install(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    String id = request.getParameter("id");
    String version = request.getParameter("version");
    PolicyUtil.checkPermission(PolicyConstants.EXTENSIONS_RESOURCE_TYPE, PolicyConstants.PERM_CHANGE,
            getSessionInfo(request).getUser());
    ActionForward fwd = new RedirectWithMessages(mapping.findForward("refresh"), request);
    URLConnection con = ExtensionStore.getInstance().downloadExtension(id, version);

    try {
        InputStream in = con.getInputStream();
        ExtensionBundle bundle = ExtensionStore.getInstance().installExtensionFromStore(id, in, request,
                con.getContentLength());
        ExtensionStore.getInstance().licenseCheck(bundle, request, fwd);
        ExtensionStore.getInstance().postInstallExtension(bundle, request);
        ActionMessages msgs = new ActionMessages();
        msgs.add(Globals.MESSAGE_KEY,
                new ActionMessage("extensionStore.message.applicationInstalled", bundle.getName()));
        saveMessages(request, msgs);
    } catch (CoreException ce) {
        ActionMessages errs = new ActionMessages();
        errs.add(Globals.ERROR_KEY, ce.getBundleActionMessage());
        saveErrors(request, errs);
    }
    return new RedirectWithMessages(mapping.findForward("refresh"), request);
}

---

From source file:de.climbingguide.erzgebirsgrenzgebiet.downloader.DownloaderThread.java

private Boolean httpDownload(String downloadUrl, String dateiname) {
    URL url;/*from www  . ja  v  a  2s .  c om*/
    URLConnection conn;
    String fileName;
    Message msg;
    try {
        url = new URL(downloadUrl);
        conn = url.openConnection();
        conn.setUseCaches(false);
        int fileSize = conn.getContentLength();

        fileName = KleFuEntry.DOWNLOAD_LOCAL_DIRECTORY;
        File file = new File(fileName);
        file.mkdirs();
        fileName = fileName + dateiname;

        // notify download start
        int fileSizeInKB = (int) (fileSize / 1024);
        msg = Message.obtain(activityHandler, KleFuEntry.MESSAGE_DOWNLOAD_STARTED, fileSizeInKB, 0, fileName);
        activityHandler.sendMessage(msg);

        BufferedInputStream inStream = new BufferedInputStream(conn.getInputStream());
        File outFile = new File(fileName);
        FileOutputStream fileStream = new FileOutputStream(outFile);
        BufferedOutputStream outStream = new BufferedOutputStream(fileStream, KleFuEntry.DOWNLOAD_BUFFER_SIZE);
        byte[] data = new byte[KleFuEntry.DOWNLOAD_BUFFER_SIZE];
        int bytesRead = 0, totalRead = 0;

        while (!isInterrupted() && (bytesRead = inStream.read(data, 0, data.length)) >= 0) {
            outStream.write(data, 0, bytesRead);

            // update progress bar
            totalRead += bytesRead;
            int totalReadInKB = totalRead / 1024;
            msg = Message.obtain(activityHandler, KleFuEntry.MESSAGE_UPDATE_PROGRESS_BAR, totalReadInKB, 0);
            activityHandler.sendMessage(msg);
        }

        outStream.close();
        fileStream.close();
        inStream.close();

        if (isInterrupted()) {
            // the download was canceled, so let's delete the partially downloaded file
            outFile.delete();
            return false;
        } else {
            return true;
        }
    } catch (Exception e) {
        String errMsg = parentActivity.getString(R.string.error_message_general);
        msg = Message.obtain(activityHandler, KleFuEntry.MESSAGE_ENCOUNTERED_ERROR, 0, 0, errMsg);
        activityHandler.sendMessage(msg);
        return false;
    }
}

---

From source file:colectordedatos.iniciocolector.java

public void cargartransacciones() {

    String strUrl = "http://10.43.11.143:8090/controller/rest/applications/Portales/business-transactions?output=JSON";
    try {//from w  w  w  .j  a  v a  2 s  .c o  m

        URL url = new URL(strUrl);
        URLConnection urlCon = url.openConnection();
        InputStream is = urlCon.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader bf = new BufferedReader(isr);
        String linea = bf.readLine();
        StringBuffer sb = new StringBuffer();
        int size = urlCon.getContentLength();
        while (linea != null) {
            sb.append(linea.trim());
            linea = bf.readLine();
        }

        JSONArray transacciones = new JSONArray(sb.toString());
        Object[] idname = new Object[transacciones.length()];

        for (int i = 0; i < transacciones.length(); i++) {
            JSONObject obj = transacciones.getJSONObject(i);
            idname idname1 = new idname(obj.getString("id"), obj.getString("name"));
            opciones.addItem(idname1);
        }

    } catch (MalformedURLException ex) {
        Logger.getLogger(iniciocolector.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(iniciocolector.class.getName()).log(Level.SEVERE, null, ex);
    } catch (JSONException ex) {
        Logger.getLogger(resultados.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:com.keithandthegirl.services.download.DownloadService.java

private void savePodcast(Long id, String title, String urlPath, File output) {
    Log.v(TAG, "savePodcast : enter");

    sendNotification("Downloading Episode: " + title);

    URL url;//w w  w . j  a  va2  s.c o  m
    URLConnection con;
    InputStream is;
    FileOutputStream fos;
    byte[] buffer = new byte[4096];

    try {
        url = new URL(urlPath);
        con = url.openConnection();
        is = con.getInputStream();
        fos = new FileOutputStream(output);

        boolean notified = false;
        int length = con.getContentLength();
        int total = 0, read = -1;
        while ((read = is.read(buffer)) != -1) {
            fos.write(buffer, 0, read);

            total += read;

            int percent = (int) FloatMath.ceil(((100 * (float) total) / (float) length));
            //Log.v( TAG, "savePodcast : download percent=" + percent + "%" );
            if (percent % 5 == 0 && !notified) {
                progressUpdate(percent);
                notified = true;
            } else {
                notified = false;
            }
        }
        is.close();
        fos.close();

        result = FragmentActivity.RESULT_OK;

        ContentValues values = new ContentValues();
        values.put(EpisodeConstants.FIELD_FILE, output.getAbsolutePath());

        getContentResolver().update(ContentUris.withAppendedId(EpisodeConstants.CONTENT_URI, id), values, null,
                null);

    } catch (Exception e) {
        Log.e(TAG, "savePodcast : error", e);
    } finally {
        completed();
    }

    Log.v(TAG, "savePodcast : exit");
}

---

From source file:io.fabric8.apiman.rest.Kubernetes2ApimanFilter.java

/**
 * Checks of the descriptionDocument can be obtained from the service. If the
 * service is still deploying we will hold off and return false.
 *
 * @param bean/*  ww  w . ja  va2  s  .co m*/
 * @return true of the desciptionDocument is ready to be read.
 */
private boolean isServiceReady(AvailableApiBean bean) {
    log.debug("DefinitionType: " + bean.getDefinitionType());
    URL defUrl = null;
    if (bean.getDefinitionType() != null && !"None".equals(bean.getDefinitionType().name())) {
        try {
            defUrl = new URL(bean.getDefinitionUrl());
            URLConnection urlConnection = defUrl.openConnection();
            log.info("Trying to obtain descriptionDoc for service " + bean.getName());
            urlConnection.setConnectTimeout(250);
            if (urlConnection.getContentLength() > 0) {
                log.debug("DefinitionDoc at 'Ready to be read " + urlConnection.getContent());
                return true;
            } else {
                //try the route
                defUrl = new URL(bean.getRouteDefinitionUrl());
                urlConnection = defUrl.openConnection();
                log.info("Trying to obtain descriptionDoc for service " + bean.getName());
                urlConnection.setConnectTimeout(250);
                if (urlConnection.getContentLength() > 0) {
                    bean.setDefinitionUrl(defUrl.toExternalForm());
                    return true;
                } else {
                    log.info("DefinitionDoc for '" + bean.getName() + "' not ready to be read from "
                            + defUrl.toExternalForm());
                }
                return false;
            }
        } catch (Exception e) {
            log.info("DefinitionDoc for '" + bean.getName() + "' can't be read. " + e.getMessage());
            return false;
        }
    }
    return true;
}

---

From source file:eu.faircode.netguard.DownloadTask.java

@Override
protected Object doInBackground(Object... args) {
    Log.i(TAG, "Downloading " + url + " into " + file);

    InputStream in = null;/*from w w  w .  j a v  a2  s  . c om*/
    OutputStream out = null;
    URLConnection connection = null;
    try {
        connection = url.openConnection();
        connection.connect();

        if (connection instanceof HttpURLConnection) {
            HttpURLConnection httpConnection = (HttpURLConnection) connection;
            if (httpConnection.getResponseCode() != HttpURLConnection.HTTP_OK)
                throw new IOException(
                        httpConnection.getResponseCode() + " " + httpConnection.getResponseMessage());
        }

        int contentLength = connection.getContentLength();
        Log.i(TAG, "Content length=" + contentLength);
        in = connection.getInputStream();
        out = new FileOutputStream(file);

        long size = 0;
        byte buffer[] = new byte[4096];
        int bytes;
        while (!isCancelled() && (bytes = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytes);

            size += bytes;
            if (contentLength > 0)
                publishProgress((int) (size * 100 / contentLength));
        }

        Log.i(TAG, "Downloaded size=" + size);
        return null;
    } catch (Throwable ex) {
        return ex;
    } finally {
        try {
            if (out != null)
                out.close();
        } catch (IOException ex) {
            Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
        }
        try {
            if (in != null)
                in.close();
        } catch (IOException ex) {
            Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
        }

        if (connection instanceof HttpURLConnection)
            ((HttpURLConnection) connection).disconnect();
    }
}

---

From source file:net.ytbolg.mcxa.Updater.java

public void run() {
    try {/*from  www . j  av  a 2  s.c o m*/
        URLConnection u = (new URL(Updater.DownloadURL)).openConnection();
        HttpURLConnection huc = (HttpURLConnection) u;
        InputStream bis = huc.getInputStream();
        File f = new File(GameInfo.Rundir + tpf + "MCLaucherXA" + Updater.ver + ".jar");
        if (!f.exists()) {
            f.createNewFile();
        }
        FileOutputStream fos = new FileOutputStream(f);
        jpb.setMaximum(u.getContentLength());
        jpb.setValue(0);
        int len = 2048;
        byte[] byt = new byte[len];
        int i = 0;
        while ((len = bis.read(byt)) != -1) {
            i = i + len;
            jpb.setValue(i);
            l.setText(i / 1024 + "/" + (u.getContentLength() / 1024) + "KB");
            fos.write(byt, 0, len);
        }

        fos.close();
        bis.close();
        JOptionPane.showMessageDialog(null,
                Lang.getLang("Up_Box_DownSucc") + "MCLaucherXA" + Updater.ver + ".jar");
        b.setEnabled(true);
        File f2 = new File(GameInfo.Rundir + tpf + "update.note");
        if (f2.exists()) {
            f2.delete();
        }
        f2.createNewFile();
        FileWriter fw = new FileWriter(f2);
        fw.write(System.getProperty("java.class.path"));
        fw.close();
        String fgf = System.getProperty("os.name").equals("Windows") ? "\"" : "'";
        Runtime.getRuntime().exec(fgf + GameInfo.JavaPath + fgf + " -jar " + GameInfo.Rundir + tpf
                + "MCLaucherXA" + Updater.ver + ".jar");
        System.exit(0);
        //      new File(System.getProperty("java.class.path")).deleteOnExit();
    } catch (Exception ex) {
        JOptionPane.showMessageDialog(null, Lang.getLang("Up_DownFaild") + "\n" + ex, "",
                JOptionPane.ERROR_MESSAGE);
        b.setEnabled(true);
    }
}

---

From source file:UrlServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    //get the 'file' parameter
    String fileName = (String) request.getParameter("file");
    if (fileName == null || fileName.equals(""))
        throw new ServletException("Invalid or non-existent file parameter in UrlServlet servlet.");

    if (fileName.indexOf(".pdf") == -1)
        fileName = fileName + ".pdf";

    URL pdfDir = null;//  w w  w  . j  av  a  2s.c  om
    URLConnection urlConn = null;
    ServletOutputStream stream = null;
    BufferedInputStream buf = null;
    try {

        pdfDir = new URL(getServletContext().getInitParameter("remote-pdf-dir") + fileName);

    } catch (MalformedURLException mue) {

        throw new ServletException(mue.getMessage());
    }
    try {

        stream = response.getOutputStream();

        //set response headers
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=" + fileName);

        urlConn = pdfDir.openConnection();
        response.setContentLength((int) urlConn.getContentLength());

        buf = new BufferedInputStream(urlConn.getInputStream());
        int readBytes = 0;

        //read from the file; write to the ServletOutputStream
        while ((readBytes = buf.read()) != -1)
            stream.write(readBytes);
    } catch (IOException ioe) {
        throw new ServletException(ioe.getMessage());
    } finally {
        if (stream != null)
            stream.close();
        if (buf != null)
            buf.close();
    }
}

---

From source file:org.jenkinsci.modules.optpluginhelper.PluginHelper.java

/**
 * List all the optional plugins (while populating the staging area with any new ones we discover).
 *
 * @return the list of optional plugins available from all the current defined {@link PluginSource} extensions.
 *//* w  ww.  j a v a 2s. c  o m*/
private List<File> listPlugins() {
    // TODO figure out what to do if two sources provide different versions of the same plugin, currently undefined
    List<File> result = new ArrayList<File>();
    final Jenkins jenkins = Jenkins.getInstance();
    if (jenkins == null) {
        return result;
    }
    File baseDir = new File(jenkins.root, OPTIONAL_PLUGIN_DIR);
    if (baseDir.exists() && !baseDir.isDirectory()) {
        LOGGER.log(Level.SEVERE, "Optional plugin working directory {0} exists and is not a directory",
                baseDir);
        return result;
    }
    if (!baseDir.isDirectory()) {
        if (!baseDir.mkdirs()) {
            LOGGER.log(Level.SEVERE, "Could not create optional plugin working directory {0}", baseDir);
            return result;
        }
    }
    for (URL resource : PluginSource.allPlugins()) {
        try {
            final String externalForm = resource.toExternalForm();
            ExtractedPluginMetadata metadata = extractedPluginMetadataMap.get(externalForm);
            if (metadata != null) {
                File archive = new File(baseDir, metadata.shortName + ".jpi");
                if (archive.isFile() && archive.length() == metadata.length
                        && Util.getDigestOf(archive).equals(metadata.digest)) {
                    result.add(archive);
                    continue;
                }
            }
            final URLConnection connection = resource.openConnection();
            long lastModified = connection.getLastModified();
            long size = connection.getContentLength();
            String path = resource.getPath();
            String fileName = FilenameUtils.getBaseName(path);
            boolean nameCheck = false;
            if (StringUtils.isBlank(fileName)) {
                nameCheck = true;
                fileName = Util.getDigestOf(resource.toString());
            }
            File file = new File(baseDir, fileName + ".jpi");
            if (file.isFile() && (file.lastModified() == lastModified || lastModified == 0)
                    && file.length() == size) {
                final String fileDigest = Util.getDigestOf(file);
                final String resourceDigest;
                final InputStream stream = connection.getInputStream();
                try {
                    resourceDigest = Util.getDigestOf(stream);
                } finally {
                    IOUtils.closeQuietly(stream);
                }
                if (fileDigest.equals(resourceDigest)) {
                    result.add(file);
                    extractedPluginMetadataMap.put(externalForm, new ExtractedPluginMetadata(file));
                    continue;
                }
            }
            FileUtils.copyURLToFile(resource, file);
            if (nameCheck) {
                final String shortName = jenkins.getPluginManager().getPluginStrategy().getShortName(file);
                if (!fileName.equals(shortName)) {
                    File newFile = new File(baseDir, shortName + ".jpi");
                    if (!newFile.isFile() || !Util.getDigestOf(newFile).equals(Util.getDigestOf(file))) {
                        FileUtils.moveFile(file, newFile);
                    }
                    file = newFile;
                }
            }
            if (lastModified != 0) {
                if (!file.setLastModified(lastModified)) {
                    LOGGER.log(Level.FINE, "Couldn't set last modified on {0}", file);
                }
            }
            result.add(file);
            extractedPluginMetadataMap.put(externalForm, new ExtractedPluginMetadata(file));
        } catch (IOException e) {
            LOGGER.log(Level.WARNING, String.format("Could not process optional plugin from %s", resource), e);
        }
    }

    LOGGER.log(Level.FINE, "List of plugins: " + result);
    return result;
}

---

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