/**
   * Downloads a Bundle file for a given bundle id.
   *
   * @param request HttpRequest
   * @param response HttpResponse
   * @throws IOException If fails sending back to the user response information
   */
  public void downloadBundle(HttpServletRequest request, HttpServletResponse response)
      throws IOException {
    try {
      if (!APILocator.getLayoutAPI()
          .doesUserHaveAccessToPortlet("EXT_CONTENT_PUBLISHING_TOOL", getUser())) {
        response.sendError(401);
        return;
      }
    } catch (DotDataException e1) {
      Logger.error(RemotePublishAjaxAction.class, e1.getMessage(), e1);
      response.sendError(401);
      return;
    }
    Map<String, String> map = getURIParams();
    response.setContentType("application/x-tgz");

    String bid = map.get("bid");

    PublisherConfig config = new PublisherConfig();
    config.setId(bid);
    File bundleRoot = BundlerUtil.getBundleRoot(config);

    ArrayList<File> list = new ArrayList<File>(1);
    list.add(bundleRoot);
    File bundle =
        new File(bundleRoot + File.separator + ".." + File.separator + config.getId() + ".tar.gz");
    if (!bundle.exists()) {
      response.sendError(500, "No Bundle Found");
      return;
    }

    response.setHeader("Content-Disposition", "attachment; filename=" + config.getId() + ".tar.gz");
    BufferedInputStream in = null;
    try {
      in = new BufferedInputStream(new FileInputStream(bundle));
      byte[] buf = new byte[4096];
      int len;

      while ((len = in.read(buf, 0, buf.length)) != -1) {
        response.getOutputStream().write(buf, 0, len);
      }
    } catch (Exception e) {
      Logger.warn(this.getClass(), "Error Downloading Bundle.", e);
    } finally {
      try {
        in.close();
      } catch (Exception ex) {
        Logger.warn(this.getClass(), "Error Closing Stream.", ex);
      }
    }
    return;
  }
  /**
   * Generates and flush an Unpublish bundle for a given bundle id and operation (publish/unpublish)
   *
   * @param request HttpRequest
   * @param response HttpResponse
   * @throws IOException If fails sending back to the user response information
   */
  public void downloadUnpushedBundle(HttpServletRequest request, HttpServletResponse response)
      throws IOException {
    try {
      if (!APILocator.getLayoutAPI()
          .doesUserHaveAccessToPortlet("EXT_CONTENT_PUBLISHING_TOOL", getUser())) {
        response.sendError(401);
        return;
      }
    } catch (DotDataException e1) {
      Logger.error(RemotePublishAjaxAction.class, e1.getMessage(), e1);
      response.sendError(401);
      return;
    }
    // Read the parameters
    Map<String, String> map = getURIParams();
    String bundleId = map.get("bundleId");
    String paramOperation = map.get("operation");
    if (bundleId == null || bundleId.isEmpty()) {
      Logger.error(this.getClass(), "No Bundle Found with id: " + bundleId);
      response.sendError(500, "No Bundle Found with id: " + bundleId);
      return;
    }

    // What we want to do with this bundle
    PushPublisherConfig.Operation operation = PushPublisherConfig.Operation.PUBLISH;
    if (paramOperation != null && paramOperation.equalsIgnoreCase("unpublish")) {
      operation = PushPublisherConfig.Operation.UNPUBLISH;
    }

    File bundle;
    String generatedBundleId;
    try {
      // Generate the bundle file for this given operation
      Map<String, Object> bundleData = generateBundle(bundleId, operation);
      bundle = (File) bundleData.get("file");
      generatedBundleId = (String) bundleData.get("id");
    } catch (Exception e) {
      Logger.error(this.getClass(), "Error trying to generate bundle with id: " + bundleId, e);
      response.sendError(500, "Error trying to generate bundle with id: " + bundleId);
      return;
    }

    response.setContentType("application/x-tgz");
    response.setHeader("Content-Disposition", "attachment; filename=" + bundle.getName());
    BufferedInputStream in = null;
    try {
      in = new BufferedInputStream(new FileInputStream(bundle));
      byte[] buf = new byte[4096];
      int len;

      while ((len = in.read(buf, 0, buf.length)) != -1) {
        response.getOutputStream().write(buf, 0, len);
      }
    } catch (Exception e) {
      Logger.error(this.getClass(), "Error reading bundle stream for bundle id: " + bundleId, e);
      response.sendError(500, "Error reading bundle stream for bundle id: " + bundleId);
    } finally {
      try {
        in.close();
      } catch (Exception ex) {
        Logger.error(this.getClass(), "Error closing Stream for bundle: " + bundleId, ex);
      }

      // Clean the just created bundle because on each download we will generate a new bundle file
      // with a new id in order to avoid conflicts with ids
      File bundleRoot = BundlerUtil.getBundleRoot(generatedBundleId);
      File compressedBundle =
          new File(ConfigUtils.getBundlePath() + File.separator + generatedBundleId + ".tar.gz");
      if (compressedBundle.exists()) {
        compressedBundle.delete();
        if (bundleRoot.exists()) {
          com.liferay.util.FileUtil.deltree(bundleRoot);
        }
      }
    }
  }
  /**
   * Allow the user to send or try to send again failed and successfully sent bundles, in order to
   * do that<br>
   * we send the bundle again to que publisher queue job which will try to remote publish again the
   * bundle.
   *
   * @param request HttpRequest
   * @param response HttpResponse
   * @throws IOException If fails sending back to the user a proper response
   * @throws DotPublisherException If fails retrieving the Bundle related information like elements
   *     on it and statuses
   * @throws LanguageException If fails using i18 messages
   */
  public void retry(HttpServletRequest request, HttpServletResponse response)
      throws IOException, DotPublisherException, LanguageException {

    PublisherAPI publisherAPI = PublisherAPI.getInstance();
    PublishAuditAPI publishAuditAPI = PublishAuditAPI.getInstance();

    // Read the parameters
    String bundlesIds = request.getParameter("bundlesIds");
    String[] ids = bundlesIds.split(",");

    StringBuilder responseMessage = new StringBuilder();

    for (String bundleId : ids) {

      if (bundleId.trim().isEmpty()) {
        continue;
      }

      PublisherConfig basicConfig = new PublisherConfig();
      basicConfig.setId(bundleId);
      File bundleRoot = BundlerUtil.getBundleRoot(basicConfig);

      // Get the audit records related to this bundle
      PublishAuditStatus status = PublishAuditAPI.getInstance().getPublishAuditStatus(bundleId);
      String pojo_string = status.getStatusPojo().getSerialized();
      PublishAuditHistory auditHistory = PublishAuditHistory.getObjectFromString(pojo_string);

      // First we need to verify is this bundle is already in the queue job
      List<PublishQueueElement> foundBundles = publisherAPI.getQueueElementsByBundleId(bundleId);
      if (foundBundles != null && !foundBundles.isEmpty()) {
        appendMessage(responseMessage, "publisher_retry.error.already.in.queue", bundleId, true);
        continue;
      }

      // We will be able to retry failed and successfully bundles
      if (!(status.getStatus().equals(Status.FAILED_TO_PUBLISH)
          || status.getStatus().equals(Status.SUCCESS))) {
        appendMessage(responseMessage, "publisher_retry.error.only.failed.publish", bundleId, true);
        continue;
      }

      /*
      Verify if the bundle exist and was created correctly..., meaning, if there is not a .tar.gz file is because
      something happened on the creation of the bundle.
       */
      File bundleFile =
          new File(
              bundleRoot
                  + File.separator
                  + ".."
                  + File.separator
                  + basicConfig.getId()
                  + ".tar.gz");
      if (!bundleFile.exists()) {
        Logger.error(this.getClass(), "No Bundle with id: " + bundleId + " found.");
        appendMessage(responseMessage, "publisher_retry.error.not.found", bundleId, true);
        continue;
      }

      if (!BundlerUtil.bundleExists(basicConfig)) {
        Logger.error(
            this.getClass(), "No Bundle Descriptor for bundle id: " + bundleId + " found.");
        appendMessage(
            responseMessage, "publisher_retry.error.not.descriptor.found", bundleId, true);
        continue;
      }

      try {

        // Read the bundle to see what kind of configuration we need to apply
        String bundlePath = ConfigUtils.getBundlePath() + File.separator + basicConfig.getId();
        File xml = new File(bundlePath + File.separator + "bundle.xml");
        PushPublisherConfig config = (PushPublisherConfig) BundlerUtil.xmlToObject(xml);

        // We can not retry Received Bundles, just bundles that we are trying to send
        Boolean sending = sendingBundle(request, config, bundleId);
        if (!sending) {
          appendMessage(
              responseMessage, "publisher_retry.error.cannot.retry.received", bundleId, true);
          continue;
        }

        if (status.getStatus().equals(Status.SUCCESS)) {

          // Get the bundle
          Bundle bundle = APILocator.getBundleAPI().getBundleById(bundleId);
          if (bundle == null) {
            Logger.error(this.getClass(), "No Bundle with id: " + bundleId + " found.");
            appendMessage(responseMessage, "publisher_retry.error.not.found", bundleId, true);
            continue;
          }
          bundle.setForcePush(true);
          APILocator.getBundleAPI().updateBundle(bundle);
        }

        // Clean the number of tries, we want to try it again
        auditHistory.setNumTries(0);
        publishAuditAPI.updatePublishAuditStatus(
            config.getId(), status.getStatus(), auditHistory, true);

        // Get the identifiers on this bundle
        HashSet<String> identifiers = new HashSet<String>();
        List<PublishQueueElement> assets = config.getAssets();
        if (config.getLuceneQueries() != null && !config.getLuceneQueries().isEmpty()) {
          identifiers.addAll(PublisherUtil.getContentIds(config.getLuceneQueries()));
        }
        if (assets != null && !assets.isEmpty()) {
          for (PublishQueueElement asset : assets) {
            identifiers.add(asset.getAsset());
          }
        }

        // Now depending of the operation lets add it to the queue job
        if (config.getOperation().equals(PushPublisherConfig.Operation.PUBLISH)) {
          publisherAPI.addContentsToPublish(
              new ArrayList<String>(identifiers), bundleId, new Date(), getUser());
        } else {
          publisherAPI.addContentsToUnpublish(
              new ArrayList<String>(identifiers), bundleId, new Date(), getUser());
        }

        // Success...
        appendMessage(responseMessage, "publisher_retry.success", bundleId, false);
      } catch (Exception e) {
        Logger.error(
            this.getClass(),
            "Error trying to add bundle id: " + bundleId + " to the Publishing Queue.",
            e);
        appendMessage(responseMessage, "publisher_retry.error.adding.to.queue", bundleId, true);
      }
    }

    response.getWriter().println(responseMessage.toString());
  }