public IEnumerable <BrowseSelection> GetSelections(ResourceSearchQuery query)
{
return(from h in _handlers
let s = h.GetSelection(query)
where s != null
select s);
}
Filter IContentHandler.GetFilter(ResourceSearchQuery searchQuery)
{
if (!searchQuery.SubcategoryId.HasValue && !searchQuery.CategoryId.HasValue)
{
return(null);
}
var filter = new TermsFilter();
//use subcategory in preference to category
if (searchQuery.SubcategoryId.HasValue)
{
filter.addTerm(new Term(FieldName.SubcategoryId, searchQuery.SubcategoryId.Value.ToFieldValue()));
}
else
{
var category = _categories.FirstOrDefault(c => c.Id == searchQuery.CategoryId);
if (category != null)
{
foreach (var subcategory in category.Subcategories)
{
filter.addTerm(new Term(FieldName.SubcategoryId, subcategory.Id.ToFieldValue()));
}
}
}
return(filter);
}
public LuceneQuery GetQuery(ResourceSearchQuery searchQuery)
{
var fieldQueries = CreateFieldQueries(searchQuery);
var query = fieldQueries.CombineQueries(BooleanClause.Occur.MUST);
return(query ?? new MatchAllDocsQuery());
}
private LuceneQuery[] CreateFieldQueries(ResourceSearchQuery searchQuery)
{
return(new[]
{
GetContentQuery(searchQuery)
});
}
Sort IContentHandler.GetSort(ResourceSearchQuery sortQuery)
{
return(new Sort(new[]
{
//reverse to make highest to lowest the default
new SortField(FieldName.Popularity, SortField.INT, !sortQuery.ReverseSortOrder),
SortField.FIELD_SCORE
}));
}
public LuceneFilter GetFilter(ResourceSearchQuery query)
{
var filters = (from h in _handlers
let f = h.GetFilter(query)
where f != null
select f).ToList();
return(filters.Count == 0
? null
: new ChainedFilter(filters.ToArray(), ChainedFilter.AND));
}
protected ResourceSearchResults Search(ResourceSearchQuery resourceQuery, float minScore)
{
var reader = _indexWriter.getReader();
var searcher = new Searcher(reader);
var query = _indexer.GetQuery(resourceQuery);
var filter = _indexer.GetFilter(resourceQuery);
var selections = _indexer.GetSelections(resourceQuery);
var sort = _indexer.GetSort(resourceQuery);
var searchResults = searcher.Search(query, filter, selections, sort == null ? null : sort.getSort(), resourceQuery.Skip, resourceQuery.Take ?? reader.maxDoc(), true);
return(searchResults);
}
ResourceSearchResults IResourceSearchService.Search(ResourceSearchQuery searchQuery, bool includeFacets)
{
const string method = "Search";
try
{
#region Log
Stopwatch searchTime = null;
if (EventSource.IsEnabled(Event.Trace))
{
searchTime = Stopwatch.StartNew();
}
#endregion
var query = _indexer.GetQuery(searchQuery);
var filter = _indexer.GetFilter(searchQuery);
var selections = _indexer.GetSelections(searchQuery);
var sort = _indexer.GetSort(searchQuery);
#region Log
if (EventSource.IsEnabled(Event.Trace))
{
EventSource.Raise(Event.Trace, method, "Executing query.", Event.Arg("query", (query != null) ? query.toString() : string.Empty));
}
#endregion
var reader = GetReader();
var searcher = new Searcher(reader);
var sorts = (sort != null) ? sort.getSort() : null;
var searchResults = searcher.Search(query, filter, selections, sorts, searchQuery.Skip, searchQuery.Take ?? reader.maxDoc(), includeFacets);
#region Log
if (searchTime != null)
{
searchTime.Stop();
EventSource.Raise(Event.Trace, method, "Query execution complete.",
Event.Arg("query", (query != null) ? query.toString() : string.Empty),
Event.Arg("total hits", searchResults.TotalMatches),
Event.Arg("result count", searchResults.ResourceIds.Count),
Event.Arg("searchTime", searchTime.ElapsedMilliseconds));
}
#endregion
return(searchResults);
}
catch (Exception e)
{
#region Log
EventSource.Raise(Event.Error, method, "Unexpected exception.", e);
#endregion
throw;
}
}
private void TestViewedItems <TResource>(ResourceType type, Func <IList <TResource> > getItems, Func <Guid, ReadOnlyUrl> getUrl)
where TResource : Resource
{
// Pick some random items.
var items = getItems();
var item1 = items[5];
var item2 = items[7];
// Search.
var query = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.Popularity, ResourceType = type
};
var results = _service1.Search(query, true);
Assert.AreEqual(items.Count, results.ResourceIds.Count);
results = _service2.Search(query, true);
Assert.AreEqual(items.Count, results.ResourceIds.Count);
// View the items to push them to the top.
var url = getUrl(item1.Id);
for (var index = 0; index < 5; ++index)
{
AssertJsonSuccess(Deserialize <JsonResponseModel>(Post(url)));
}
url = getUrl(item2.Id);
for (var index = 0; index < 7; ++index)
{
AssertJsonSuccess(Deserialize <JsonResponseModel>(Post(url)));
}
// Do some searches again.
results = _service1.Search(query, true);
Assert.AreEqual(items.Count, results.ResourceIds.Count);
Assert.AreEqual(item2.Id, results.ResourceIds[0]);
Assert.AreEqual(item1.Id, results.ResourceIds[1]);
// Wait for the polling to kick in.
Thread.Sleep(3 * MonitorInterval * 1000);
results = _service2.Search(query, true);
Assert.AreEqual(items.Count, results.ResourceIds.Count);
Assert.AreEqual(item2.Id, results.ResourceIds[0]);
Assert.AreEqual(item1.Id, results.ResourceIds[1]);
}
BrowseSelection IContentHandler.GetSelection(ResourceSearchQuery searchQuery)
{
if (searchQuery.ResourceType == null)
{
return(null);
}
var selection = new BrowseSelection(FieldName.ItemType);
selection.addValue(searchQuery.ResourceType.Value.Encode());
return(selection);
}
public void MultipleTypesTest()
{
//Create items
var subcategory1 = Guid.NewGuid();
var article1 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now.AddDays(-2),
SubcategoryId = subcategory1,
Text = "An article",
Title = "An article title",
};
IndexItem(article1);
var qna1 = new QnA
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "An answered question",
Title = "An answered question title",
};
IndexItem(qna1);
var faq1 = new Faq
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "How do I do this",
Title = "Read the manual",
};
IndexItem(faq1);
// search
var resourceQuery = new ResourceSearchQuery {
ResourceType = ResourceType.Article
};
var results = Search(resourceQuery, 10);
Assert.AreEqual(1, results.ResourceIds.Count);
Assert.AreEqual(article1.Id, results.ResourceIds[0]);
}
public LuceneSort GetSort(ResourceSearchQuery query)
{
switch (query.SortOrder)
{
case ResourceSortOrder.Relevance:
// Default sort.
return(null);
case ResourceSortOrder.CreatedTime:
return(_createdTimeHandler.GetSort(query));
case ResourceSortOrder.Popularity:
return(_popularityHandler.GetSort(query));
default:
return(null);
}
}
public void PopularitySortTest()
{
//Create items
var subcategory1 = Guid.NewGuid();
var article1 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now.AddDays(-2),
SubcategoryId = subcategory1,
Text = "An article",
Title = "An article title",
};
IndexItem(article1);
var article2 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "Another article",
Title = "Another article title",
};
IndexItem(article2);
var article3 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "Yet another article",
Title = "Yet another article title",
};
var userId = Guid.NewGuid();
_resourcesCommand.ViewArticle(userId, article3.Id);
_resourcesCommand.ViewArticle(Guid.NewGuid(), article3.Id);
IndexItem(article3);
var article4 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "Still another article",
Title = "Still another article title",
};
IndexItem(article4);
// Sort by popularity.
var resourceQuery = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.Popularity, ResourceType = ResourceType.Article
};
var results = Search(resourceQuery, 10);
Assert.AreEqual(4, results.ResourceIds.Count);
Assert.AreEqual(article3.Id, results.ResourceIds[0]);
// View and reindex
_resourcesCommand.ViewArticle(userId, article4.Id);
_resourcesCommand.ViewArticle(Guid.NewGuid(), article4.Id);
_resourcesCommand.ViewArticle(Guid.NewGuid(), article4.Id);
_resourcesCommand.ViewArticle(Guid.NewGuid(), article4.Id);
IndexItem(article4, false);
resourceQuery = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.Popularity, ResourceType = ResourceType.Article
};
results = Search(resourceQuery, 10);
Assert.AreEqual(4, results.ResourceIds.Count);
Assert.AreEqual(article4.Id, results.ResourceIds[0]);
Assert.AreEqual(article3.Id, results.ResourceIds[1]);
// View article 3 again by the same person
_resourcesCommand.ViewArticle(userId, article3.Id);
_resourcesCommand.ViewArticle(userId, article3.Id);
_resourcesCommand.ViewArticle(userId, article3.Id);
IndexItem(article3, false);
resourceQuery = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.Popularity, ResourceType = ResourceType.Article
};
results = Search(resourceQuery, 10);
Assert.AreEqual(4, results.ResourceIds.Count);
Assert.AreEqual(article3.Id, results.ResourceIds[0]);
Assert.AreEqual(article4.Id, results.ResourceIds[1]);
}
public LuceneQuery GetContentQuery(ResourceSearchQuery query)
{
return(query.Keywords.GetLuceneQuery(FieldName.Content, _queryAnalyzer));
}
protected ResourceSearchResults Search(ResourceSearchQuery resourceQuery)
{
return(Search(resourceQuery, 0));
}
BrowseSelection IContentHandler.GetSelection(ResourceSearchQuery searchQuery)
{
return(null);
}
Sort IContentHandler.GetSort(ResourceSearchQuery sortQuery)
{
return(null);
}
public LuceneQuery GetQuery(ResourceSearchQuery query)
{
return(_queryBuilder.GetQuery(query));
}
public void CreatedTimeSortTest()
{
//Create items
var subcategory1 = Guid.NewGuid();
var article1 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now.AddDays(-2),
SubcategoryId = subcategory1,
Text = "An article",
Title = "An article title",
};
IndexItem(article1);
var article2 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
SubcategoryId = subcategory1,
Text = "Another article",
Title = "Another article title",
};
IndexItem(article2);
var article3 = new Article
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now.AddDays(-5),
SubcategoryId = subcategory1,
Text = "Another article",
Title = "Another article title",
};
IndexItem(article3);
var video = new Video
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now,
ExternalVideoId = "12345",
SubcategoryId = subcategory1,
Text = "A Video",
Title = "A video title",
};
IndexItem(video);
var qna = new QnA
{
Id = Guid.NewGuid(),
CreatedTime = DateTime.Now.AddDays(-1),
SubcategoryId = subcategory1,
Text = "An answer",
Title = "A question",
};
IndexItem(qna);
// Sort by createdTime.
var query = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.CreatedTime, ResourceType = ResourceType.Article
};
var results = Search(query, 10);
Assert.AreEqual(3, results.ResourceIds.Count);
Assert.AreEqual(article2.Id, results.ResourceIds[0]);
Assert.AreEqual(article1.Id, results.ResourceIds[1]);
Assert.AreEqual(article3.Id, results.ResourceIds[2]);
var resourceTypeHits = results.ResourceTypeHits.ToDictionary(h => h.Key, h => h.Value);
Assert.AreEqual(3, resourceTypeHits[ResourceType.Article]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.Video]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.QnA]);
query = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.CreatedTime, ReverseSortOrder = false, ResourceType = ResourceType.Article
};
results = Search(query, 10);
Assert.AreEqual(3, results.ResourceIds.Count);
Assert.AreEqual(article2.Id, results.ResourceIds[0]);
Assert.AreEqual(article1.Id, results.ResourceIds[1]);
Assert.AreEqual(article3.Id, results.ResourceIds[2]);
resourceTypeHits = results.ResourceTypeHits.ToDictionary(h => h.Key, h => h.Value);
Assert.AreEqual(3, resourceTypeHits[ResourceType.Article]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.Video]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.QnA]);
query = new ResourceSearchQuery {
SortOrder = ResourceSortOrder.CreatedTime, ReverseSortOrder = true, ResourceType = ResourceType.Article
};
results = Search(query, 10);
Assert.AreEqual(3, results.ResourceIds.Count);
Assert.AreEqual(article3.Id, results.ResourceIds[0]);
Assert.AreEqual(article1.Id, results.ResourceIds[1]);
Assert.AreEqual(article2.Id, results.ResourceIds[2]);
resourceTypeHits = results.ResourceTypeHits.ToDictionary(h => h.Key, h => h.Value);
Assert.AreEqual(3, resourceTypeHits[ResourceType.Article]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.Video]);
Assert.AreEqual(1, resourceTypeHits[ResourceType.QnA]);
}
Sort IContentHandler.GetSort(ResourceSearchQuery searchQuery)
{
// Reverse the natural order, i.e. newest at the top.
return(GetSort(!searchQuery.ReverseSortOrder));
}
LuceneFilter IContentHandler.GetFilter(ResourceSearchQuery searchQuery)
{
return(null);
}
