/WebStore.UI/Helpers/ProductSearchIndexBuilder.cs

// Author:					    Joe Audette

// Created:				        2008-12-11

// Last Modified:			    2009-07-22

// 

// The use and distribution terms for this software are covered by the 

// Common Public License 1.0 (http://opensource.org/licenses/cpl.php)  

// which can be found in the file CPL.TXT at the root of this distribution.

// By using this software in any fashion, you are agreeing to be bound by 

// the terms of this license.

//

// You must not remove this notice, or any other, from this software.

// 



using System;

using System.Collections.Generic;

using System.Data;

using System.Globalization;

using System.Text;

using System.Threading;

using log4net;

using mojoPortal.Business;

using mojoPortal.Business.WebHelpers;

using WebStore.Business;

using mojoPortal.Web;



namespace WebStore.UI.Helpers

{

    /// <summary>

    ///Indexes the products into the search index.

    /// </summary>

    public class ProductSearchIndexBuilder : IndexBuilderProvider

    {

        private static readonly ILog log = LogManager.GetLogger(typeof(ProductSearchIndexBuilder));

        private static bool debugLog = log.IsDebugEnabled;



        private const string tabScript = "<script type=\"text/javascript\" > var myTabs = new YAHOO.widget.TabView(\"productdetails\"); </script>";



        /// <summary>

        /// This method is called when the site index is rebuilt

        /// </summary>

        /// <param name="pageSettings"></param>

        /// <param name="indexPath"></param>

        public override void RebuildIndex(

            PageSettings pageSettings,

            string indexPath)

        {

            if (WebConfigSettings.DisableSearchIndex) { return; }

            if (pageSettings == null)

            {

                log.Error("pageSettings object passed to ProductSearchIndexBuilder.RebuildIndex was null");

                return;

            }



            //don't index pending/unpublished pages

            if (pageSettings.IsPending) { return; }



            log.Info("ProductSearchIndexBuilder indexing page - "

                + pageSettings.PageName);





            Guid webStoreFeatureGuid = new Guid("0cefbf18-56de-11dc-8f36-bac755d89593");

            ModuleDefinition webStoreFeature = new ModuleDefinition(webStoreFeatureGuid);



            List<PageModule> pageModules

                    = PageModule.GetPageModulesByPage(pageSettings.PageId);



            // adding a try catch here because this is invoked even for non-implemented db platforms and it causes an error

            try

            {

                DataTable dataTable

                    = Product.GetBySitePage(

                    pageSettings.SiteId,

                    pageSettings.PageId);



                foreach (DataRow row in dataTable.Rows)

                {

                    IndexItem indexItem = new IndexItem();

                    indexItem.SiteId = pageSettings.SiteId;

                    indexItem.PageId = pageSettings.PageId;

                    indexItem.PageName = pageSettings.PageName;

                    indexItem.ViewRoles = pageSettings.AuthorizedRoles;

                    indexItem.ModuleViewRoles = row["ViewRoles"].ToString();

                    indexItem.FeatureId = webStoreFeatureGuid.ToString();

                    indexItem.FeatureName = webStoreFeature.FeatureName;

                    indexItem.FeatureResourceFile = webStoreFeature.ResourceFile;



                    indexItem.ItemKey = row["Guid"].ToString();

                    indexItem.ModuleId = Convert.ToInt32(row["ModuleID"], CultureInfo.InvariantCulture);

                    indexItem.ModuleTitle = row["ModuleTitle"].ToString();

                    indexItem.Title = row["Name"].ToString();

                    indexItem.ViewPage = row["Url"].ToString().Replace("/", string.Empty);

                    if (indexItem.ViewPage.Length > 0)

                    {

                        indexItem.UseQueryStringParams = false;

                    }

                    else

                    {

                        indexItem.ViewPage = "WebStore/ProductDetail.aspx";

                    }



                    indexItem.PageMetaDescription = row["MetaDescription"].ToString();

                    indexItem.PageMetaKeywords = row["MetaKeywords"].ToString();



                    indexItem.Content = row["Abstract"].ToString()

                        + " " + row["Description"].ToString()

                        + " " + row["MetaDescription"].ToString()

                        + " " + row["MetaKeywords"].ToString();





                    // lookup publish dates

                    foreach (PageModule pageModule in pageModules)

                    {

                        if (indexItem.ModuleId == pageModule.ModuleId)

                        {

                            indexItem.PublishBeginDate = pageModule.PublishBeginDate;

                            indexItem.PublishEndDate = pageModule.PublishEndDate;

                        }

                    }



                    IndexHelper.RebuildIndex(indexItem, indexPath);





                    if (debugLog) log.Debug("Indexed " + indexItem.Title);



                }



            }

            catch { }

            





        }





        public override void ContentChangedHandler(

            object sender,

            ContentChangedEventArgs e)

        {

            if (WebConfigSettings.DisableSearchIndex) { return; }

            if (sender == null) return;

            if (!(sender is Product)) return;



            Product product = sender as Product;

            

            SiteSettings siteSettings = CacheHelper.GetCurrentSiteSettings();

            product.SiteId = siteSettings.SiteId;

            product.SearchIndexPath = IndexHelper.GetSearchIndexPath(siteSettings.SiteId);



            if (e.IsDeleted)

            {

                Store store = new Store(product.StoreGuid);

                // get list of pages where this module is published

                List<PageModule> pageModules

                    = PageModule.GetPageModulesByModule(store.ModuleId);



                foreach (PageModule pageModule in pageModules)

                {

                    IndexHelper.RemoveIndexItem(

                        pageModule.PageId,

                        store.ModuleId,

                        product.Guid.ToString());

                }

            }

            else

            {

                if (ThreadPool.QueueUserWorkItem(new WaitCallback(IndexItem), product))

                {

                    if (debugLog) log.Debug("ProductSearchIndexBuilder.IndexItem queued");

                }

                else

                {

                    log.Error("Failed to queue a thread for ProductSearchIndexBuilder.IndexItem");

                }



            }



        }



        private static void IndexItem(object o)

        {

            if (WebConfigSettings.DisableSearchIndex) { return; }

            if (o == null) return;

            if (!(o is Product)) return;



            Product content = o as Product;

            IndexItem(content);



        }





        private static void IndexItem(Product product)

        {

            if (WebConfigSettings.DisableSearchIndex) { return; }

            if (product == null)

            {

                if (log.IsErrorEnabled)

                {

                    log.Error("product object passed to ProductSearchIndexBuilder.IndexItem was null");

                }

                return;

            }



            Store store = new Store(product.StoreGuid);



            Module module = new Module(store.ModuleId);

            Guid webStoreFeatureGuid = new Guid("0cefbf18-56de-11dc-8f36-bac755d89593");

            ModuleDefinition webStoreFeature = new ModuleDefinition(webStoreFeatureGuid);

            

            //// get list of pages where this module is published

            List<PageModule> pageModules

                = PageModule.GetPageModulesByModule(store.ModuleId);



            foreach (PageModule pageModule in pageModules)

            {

                PageSettings pageSettings

                    = new PageSettings(

                    product.SiteId,

                    pageModule.PageId);



                //don't index pending/unpublished pages

                if (pageSettings.IsPending) { continue; }



                IndexItem indexItem = new IndexItem();

                if (product.SearchIndexPath.Length > 0)

                {

                    indexItem.IndexPath = product.SearchIndexPath;

                }

                indexItem.SiteId = product.SiteId;

                indexItem.PageId = pageSettings.PageId;

                indexItem.PageName = pageSettings.PageName;

                indexItem.ViewRoles = pageSettings.AuthorizedRoles;

                indexItem.ModuleViewRoles = module.ViewRoles;

                if (product.Url.Length > 0)

                {

                    indexItem.ViewPage = product.Url.Replace("~/", string.Empty);

                    indexItem.UseQueryStringParams = false;

                }

                else

                {

                    indexItem.ViewPage = "/WebStore/ProductDetail.aspx";

                }

                indexItem.ItemKey = product.Guid.ToString();

                indexItem.ModuleId = store.ModuleId;

                indexItem.ModuleTitle = module.ModuleTitle;

                indexItem.Title = product.Name;

                indexItem.PageMetaDescription = product.MetaDescription;

                indexItem.PageMetaKeywords = product.MetaKeywords;



                indexItem.Content 

                    = product.Teaser 

                    + " " + product.Description.Replace(tabScript, string.Empty) 

                    + " " + product.MetaDescription 

                    + " " + product.MetaKeywords;



                indexItem.FeatureId = webStoreFeatureGuid.ToString();

                indexItem.FeatureName = webStoreFeature.FeatureName;

                indexItem.FeatureResourceFile = webStoreFeature.ResourceFile;

                indexItem.PublishBeginDate = pageModule.PublishBeginDate;

                indexItem.PublishEndDate = pageModule.PublishEndDate;



                IndexHelper.RebuildIndex(indexItem);

            }



            if (debugLog) log.Debug("Indexed " + product.Name);



        }





    }

}