private void populateParentMenu()

in doxia-integration-tools/src/main/java/org/apache/maven/doxia/tools/DefaultSiteTool.java [490:546]
45 lines of code
9 McCabe index (conditional complexity)

    private void populateParentMenu(
            SiteModel siteModel,
            Locale locale,
            MavenProject project,
            MavenProject parentProject,
            boolean keepInheritedRefs) {
        Objects.requireNonNull(siteModel, "siteModel cannot be null");
        Objects.requireNonNull(locale, "locale cannot be null");
        Objects.requireNonNull(project, "project cannot be null");
        Objects.requireNonNull(parentProject, "parentProject cannot be null");

        Menu menu = siteModel.getMenuRef("parent");

        if (menu == null) {
            return;
        }

        if (keepInheritedRefs && menu.isInheritAsRef()) {
            return;
        }

        String parentUrl = getDistMgmntSiteUrl(parentProject);

        if (parentUrl != null) {
            if (parentUrl.endsWith("/")) {
                parentUrl += "index.html";
            } else {
                parentUrl += "/index.html";
            }

            parentUrl = getRelativePath(parentUrl, getDistMgmntSiteUrl(project));
        } else {
            // parent has no url, assume relative path is given by site structure
            File parentBasedir = parentProject.getBasedir();
            // First make sure that the parent is available on the file system
            if (parentBasedir != null) {
                // Try to find the relative path to the parent via the file system
                String parentPath = parentBasedir.getAbsolutePath();
                String projectPath = project.getBasedir().getAbsolutePath();
                parentUrl = getRelativePath(parentPath, projectPath) + "/index.html";
            }
        }

        // Only add the parent menu if we were able to find a URL for it
        if (parentUrl == null) {
            LOGGER.warn("Unable to find a URL to the parent project. The parent menu will NOT be added.");
        } else {
            if (menu.getName() == null) {
                menu.setName(i18n.getString("site-tool", locale, "siteModel.menu.parentproject"));
            }

            MenuItem item = new MenuItem();
            item.setName(parentProject.getName());
            item.setHref(parentUrl);
            menu.addItem(item);
        }
    }