private void build(GHPullRequest pr, GHUser buildRequester, TriggerCause cause)
      throws IOException {
    ArrayList<ParameterValue> parameters = getDefaultBuildParameters();
    parameters.add(new StringParameterValue(PR_COMMIT, pr.getHead().getSha()));
    parameters.add(new StringParameterValue(PR_BRANCH, pr.getHead().getRef()));
    if (buildRequester != null) {
      parameters.add(new StringParameterValue(BUILD_REQUESTER, buildRequester.getLogin()));
      if (buildRequester.getEmail() != null) {
        parameters.add(new StringParameterValue(BUILD_REQUEST_EMAIL, buildRequester.getEmail()));
      }
    }
    parameters.add(new StringParameterValue(PR_NUMBER, String.valueOf(pr.getNumber())));
    parameters.add(new StringParameterValue(PR_MERGE_BRANCH, pr.getBase().getRef()));
    parameters.add(new StringParameterValue(PR_OWNER, pr.getUser().getLogin()));
    if (pr.getUser().getEmail() != null) {
      parameters.add(new StringParameterValue(PR_OWNER_EMAIL, pr.getUser().getEmail()));
    }
    final StringParameterValue prUrlParam =
        new StringParameterValue(PR_URL, pr.getHtmlUrl().toString());
    parameters.add(prUrlParam);

    project.scheduleBuild2(
        project.getQuietPeriod(),
        cause,
        new ParametersAction(parameters),
        getBuildData(prUrlParam),
        new RevisionParameterAction(pr.getHead().getSha()));
  }
  void handle(GHEventPayload.PullRequest prEventPayload, GitHub gitHub) throws IOException {
    GHPullRequest pullRequest = prEventPayload.getPullRequest();
    String pullRequestUrl = pullRequest.getHtmlUrl().toString();
    if (!pullRequestUrl.startsWith(gitHubRepositoryUrl)) {
      LOGGER.config(
          MessageFormat.format(
              "Pull request {0} is not related to project {1}. "
                  + "GitHub project URL configured for project {1}: {2}",
              pullRequestUrl, project.getFullName(), gitHubRepositoryUrl));
      return;
    }

    LOGGER.info(
        MessageFormat.format(
            "Handling event ''{0}'' of pull request {1} for project {2}",
            prEventPayload.getAction(), pullRequestUrl, project.getFullName()));

    PullRequestManager pullRequestManager = PullRequestManager.getInstance();
    PullRequestData pullRequestData =
        pullRequestManager.getPullRequestData(pullRequestUrl, project);

    if (PullRequestManager.PullRequestAction.CLOSED.equals(prEventPayload.getAction())) {
      if (pullRequestData != null) {
        cancelBuilds(pullRequestData);
        deleteInstances(pullRequest);
      } else {
        LOGGER.warning(
            "No previous data available for received Pull Request 'close' event: "
                + pullRequestUrl);
      }
      return;
    }

    if (!isWhitelisted(pullRequest.getUser(), gitHub)) {
      LOGGER.info(
          MessageFormat.format(
              "GitHub user {0} is not in the whitelist of project {1}",
              pullRequest.getUser().getLogin(), project.getFullName()));

      return;
    }

    boolean startBuild = false;

    if (pullRequestData == null) {
      if (PullRequestManager.PullRequestAction.SYNCHRONIZE.equals(prEventPayload.getAction())) {
        LOGGER.info(
            MessageFormat.format(
                "Updated pull request {0} was not built previously", pullRequestUrl));
      }
      pullRequestData = pullRequestManager.addPullRequestData(pullRequest, project);
      startBuild = pullRequestData.getLastUpdated().equals(pullRequest.getUpdatedAt());

    } else if (pullRequestData.update(pullRequest)) {
      pullRequestData.save();
      startBuild = true;
    }

    if (LOGGER.isLoggable(Level.FINEST)) {
      LOGGER.finest("Received event payload: " + prEventPayload);
    }

    if (startBuild) {
      if (LOGGER.isLoggable(Level.FINE)) {
        LOGGER.fine(
            "Cancelling previous running builds and starting new build for Pull request: "
                + pullRequestData);
      }
      cancelBuilds(pullRequestData);
      build(pullRequest, null, new TriggerCause(prEventPayload));

    } else if (LOGGER.isLoggable(Level.FINE)) {
      LOGGER.fine("No new build has been triggered for Pull request: " + pullRequestData);
    }
  }