public void can_encode_and_decode_IndexQuery_SortedFields()
{
SortedField sf1 = new SortedField(Some.String())
{
Field = "sf1",
Descending = true
};
SortedField sf2 = new SortedField(Some.String())
{
Field = "sf2",
Descending = false
};
SortedField[] expected = new[] { sf1, sf2 };
var indexQuery = new IndexQuery();
indexQuery.SortedFields = expected;
IndexQuery result = EncodeAndDecodeIndexQuery(indexQuery);
Assert.Equal(2, result.SortedFields.Length);
Assert.Equal("sf1", result.SortedFields[0].Field);
Assert.Equal(true, result.SortedFields[0].Descending);
Assert.Equal("sf2", result.SortedFields[1].Field);
Assert.Equal(false, result.SortedFields[1].Descending);
}
private void AssertQueryDoesNotContainFieldsThatAreNotIndexes(string query, SortedField[] fields)
{
var hashSet = SimpleQueryParser.GetFields(query);
foreach (var field in hashSet)
{
var f = field;
if (f.EndsWith("_Range"))
{
f = f.Substring(0, f.Length - "_Range".Length);
}
if (viewGenerator.ContainsField(f) == false)
throw new ArgumentException("The field '" + f + "' is not indexed, cannot query on fields that are not indexed");
}
if (fields == null)
return;
foreach (var field in fields)
{
var f = field.Field;
if (f.EndsWith("_Range"))
{
f = f.Substring(0, f.Length - "_Range".Length);
}
if (viewGenerator.ContainsField(f) == false)
throw new ArgumentException("The field '" + f + "' is not indexed, cannot sort on fields that are not indexed");
}
}
private static SortField ToLuceneSortField(IndexDefinition definition, SortedField sortedField)
{
SortOptions? sortOptions = GetSortOption(definition, sortedField.Field);
if (sortOptions == null)
return new SortField(sortedField.Field, CultureInfo.InvariantCulture, sortedField.Descending);
return new SortField(sortedField.Field, (int) sortOptions.Value, sortedField.Descending);
}
private TopDocs ExecuteQuery(IndexSearcher searcher, Query luceneQuery, int start, int pageSize, SortedField[] sortedFields)
{
if(pageSize == int.MaxValue) // we want all docs
{
var gatherAllCollector = new GatherAllCollector();
searcher.Search(luceneQuery, gatherAllCollector);
return gatherAllCollector.ToTopDocs();
}
// NOTE: We get Start + Pagesize results back so we have something to page on
if (sortedFields != null && sortedFields.Length > 0)
{
var sort = new Sort(sortedFields.Select(x => x.ToLuceneSortField(indexDefinition)).ToArray());
return searcher.Search(luceneQuery, null, pageSize + start, sort);
}
return searcher.Search(luceneQuery, null, pageSize + start);
}
