return null;
        }
        if (permission.startsWith(fessConfig.getRoleSearchUserPrefix())
                && permission.length() > fessConfig.getRoleSearchUserPrefix().length()) {
            return aclPrefix + userPrefix + permission.substring(fessConfig.getRoleSearchUserPrefix().length());
        }
        if (permission.startsWith(fessConfig.getRoleSearchGroupPrefix())

    <example>${fe:message("labels.foobar", "default value")}</example>
  </function>

  <function>
    <description>Check if user has a permission.</description>
    <name>permission</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>boolean hasActionRole(java.lang.String)</function-signature>

        LOGIN_FAILURE,
        /**
         * The update permission action.
         */
        UPDATE_PERMISSION;
    }

    /**
     * Set the logger name.
     * @param loggerName The logger name.
     */
    public void setLoggerName(final String loggerName) {
        this.loggerName = loggerName;
    }

    /**
     * Set the permission separator.

    }

    /**
     * Checks if a permission string is a user permission.
     *
     * @param permission The permission string.
     * @return true if it is a user permission, false otherwise.
     */
    public boolean isUserPermission(final String permission) {
        if (StringUtil.isNotBlank(permission)) {
            return permission.startsWith(ComponentUtil.getFessConfig().getRoleSearchUserPrefix());

        // nothing
    }

    /**
     * Checks if the current user has permission to access the given resource.
     * For admin actions, verifies that the user has appropriate admin roles or
     * meets the secured annotation requirements.
     *
     * @param resource the login handling resource to check permission for
     * @throws LoginRequiredException if login is required

     *
     * @param searchRequestParams The search request parameters
     * @param data The search render data to populate with results
     * @param userBean Optional user information for permission checking
     */
    public void search(final SearchRequestParams searchRequestParams, final SearchRenderData data,
            final OptionalThing<FessUserBean> userBean) {

        assertArrayEquals(permissions, user.getPermissions());

        // Test with empty permissions
        permissions = new String[] {};
        user = new TestFessUser("testuser", new String[] {}, new String[] {}, permissions);
        assertArrayEquals(permissions, user.getPermissions());

        // Test with null permissions

        assertEquals("read", permissions[0]);

        // Test with multiple permissions
        testUser.setPermissions(new String[] { "read", "write", "delete" });
        permissions = fessUserBean.getPermissions();
        assertEquals(3, permissions.length);
        assertEquals("read", permissions[0]);
        assertEquals("write", permissions[1]);
        assertEquals("delete", permissions[2]);
    }

    public void test_getRoles() {

      the terms of any separate license agreement you may have executed
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