public async Task <ISearchResponse <T> > Search <T, TRequest>(TRequest request) where T : class where TRequest : class
{
try
{
var esNodes = string.Join(';', _esClient.ConnectionSettings.ConnectionPool.Nodes.Select(x => x.Uri));
_logger.LogDebug($"ElasticSearch Search begins {esNodes}");
if (request == null)
{
return(new SearchResponse <T>());
}
HousingSearchRequest searchRequest = (HousingSearchRequest)(object)request;
var pageOffset = _pagingHelper.GetPageOffset(searchRequest.PageSize, searchRequest.Page);
var result = await _esClient.SearchAsync <T>(x => x.Index(_indexSelector.Create <T>())
.Query(q => BaseQuery <T>().Create(request, q))
.PostFilter(q => _filterFactory.Create <T, TRequest>(request).GetDescriptor(q, request))
.Sort(_sortFactory.Create <T, TRequest>(request).GetSortDescriptor)
.Size(searchRequest.PageSize)
.Skip(pageOffset)
.TrackTotalHits()).ConfigureAwait(false);
_logger.LogDebug("ElasticSearch Search ended");
return(result);
}
catch (ElasticsearchClientException e)
{
_logger.LogError(e, "ElasticSearch Search threw an ElasticSearchClientException. DebugInfo: " + e.DebugInformation);
throw;
}
catch (Exception e)
{
_logger.LogError(e, "ElasticSearch Search threw an exception");
throw;
}
}
public LuceneModelFilter ParseQuery(string defaultField, NameValueCollection queryParameters)
{
var orderbyField = queryParameters[StringConstants.OrderByParameter];
var query = queryParameters[StringConstants.QueryParameter];
//var selects = queryParameters[StringConstants.SelectParameter];
var filter = queryParameters[StringConstants.FilterParameter];
var skip = queryParameters[StringConstants.SkipParameter];
var top = queryParameters[StringConstants.TopParameter];
var luceneQuery = m_queryFactory.Create(query);
//var luceneSelectFilter = m_selectFilterFactory.Create(selects);
var luceneFilter = m_filterFactory.Create(filter);
var luceneSort = m_sortFactory.Create(orderbyField);
//Validation on Skip/Top
var skipValue = -1;
if (skip.IsNullOrWhiteSpace() == false && int.TryParse(skip, out skipValue) == false)
{
throw new FormatException("When specified, the Skip parameter must be an integer.");
}
var topValue = -1;
if (top.IsNullOrWhiteSpace() == false && int.TryParse(top, out topValue) == false)
{
throw new FormatException("When specified, the Top parameter must be an integer.");
}
var modelFilter = new LuceneModelFilter
{
Query = luceneQuery,
//SelectFilter = luceneSelectFilter,
Filter = luceneFilter,
Sort = luceneSort,
Skip = skipValue,
Take = topValue
};
return(modelFilter);
}
