SharePoint Get Convivial URL for a specific Term by Label

You can use the following function in order to retrieve the convivial url associated for a specific term if you use the navigation thanks to the termstore in sharepoint 2010 and 2013

        /// Get convivial URL for a specific term using Label

        /// </summary>

        /// <param name="navigation_Group_Name">Navigation group name for the site collection</param>

        /// <param name="navigation_TermSet_Name">Termset name used for termstore navigation</param>

        /// <param name="navigation_Nom_Term">Name of the term you want to retrieve</param>

        /// <param name="navigation_default_url">Default url used if none term match the label filter</param>

        /// <param name="site"></param>

        /// <returns>site relative convival url   /</returns>

        public static string GetUrlConvivialForTerm(

            string navigation_Group_Name,

            string navigation_TermSet_Name, 

            string navigation_Nom_Term, 

            string navigation_default_url,

            SPSite site)

        {

            string url = string.Empty;

            //Utiliser SPContext SPContext.Current.Site

            TaxonomySession session = new TaxonomySession(site, false);

            TermStore store = session.TermStores[0];

            CacheManager cm = new CacheManager();

            TermSet tHE = TermManager.GetTermSet(navigation_Group_Name, navigation_TermSet_Name, site.RootWeb.Url);

            NavigationTermSet navTermSet = NavigationTermSet.GetAsResolvedByWeb(tHE, site.RootWeb,

                           StandardNavigationProviderNames.GlobalNavigationTaxonomyProvider);

            IEnumerable<NavigationTerm> terms = navTermSet.Terms.Where(t => t.GetTaxonomyTerm().Name.Equals(navigation_Nom_Term));

           

            if(terms != null)

            {

                NavigationTerm term = terms.FirstOrDefault();

                if (term != null)

                {

                    url = term.GetWebRelativeFriendlyUrl();

                }

            }

            if(url.Equals(string.Empty))

            {

                return navigation_default_url;

            }

            else

            {

                return url;

            }

        }