|
private GetSearcher ( |
||
| searcher | ||
| return | IDisposable | |
public IEnumerable <IndexQueryResult> Query()
{
using (IndexStorage.EnsureInvariantCulture())
{
AssertQueryDoesNotContainFieldsThatAreNotIndexes();
IndexSearcher indexSearcher;
using (parent.GetSearcher(out indexSearcher))
{
var luceneQuery = ApplyIndexTriggers(GetLuceneQuery());
int start = indexQuery.Start;
int pageSize = indexQuery.PageSize;
int returnedResults = 0;
int skippedResultsInCurrentLoop = 0;
do
{
if (skippedResultsInCurrentLoop > 0)
{
start = start + pageSize;
// trying to guesstimate how many results we will need to read from the index
// to get enough unique documents to match the page size
pageSize = skippedResultsInCurrentLoop * indexQuery.PageSize;
skippedResultsInCurrentLoop = 0;
}
TopDocs search = ExecuteQuery(indexSearcher, luceneQuery, start, pageSize, indexQuery);
indexQuery.TotalSize.Value = search.TotalHits;
RecordResultsAlreadySeenForDistinctQuery(indexSearcher, search, start, pageSize);
for (var i = start; (i - start) < pageSize && i < search.ScoreDocs.Length; i++)
{
Document document = indexSearcher.Doc(search.ScoreDocs[i].doc);
IndexQueryResult indexQueryResult = parent.RetrieveDocument(document, fieldsToFetch, search.ScoreDocs[i].score);
if (ShouldIncludeInResults(indexQueryResult) == false)
{
indexQuery.SkippedResults.Value++;
skippedResultsInCurrentLoop++;
continue;
}
returnedResults++;
yield return(indexQueryResult);
if (returnedResults == indexQuery.PageSize)
{
yield break;
}
}
} while (skippedResultsInCurrentLoop > 0 && returnedResults < indexQuery.PageSize);
}
}
}
private void LoadExistingSuggesionsExtentions(string indexName, Index indexImplementation)
{
var suggestionsForIndex = Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName);
if (!Directory.Exists(suggestionsForIndex))
{
return;
}
foreach (var directory in Directory.GetDirectories(suggestionsForIndex))
{
IndexSearcher searcher;
using (indexImplementation.GetSearcher(out searcher))
{
var key = Path.GetFileName(directory);
var decodedKey = MonoHttpUtility.UrlDecode(key);
var lastIndexOfDash = decodedKey.LastIndexOf('-');
var accuracy = float.Parse(decodedKey.Substring(lastIndexOfDash + 1));
var lastIndexOfDistance = decodedKey.LastIndexOf('-', lastIndexOfDash - 1);
StringDistanceTypes distanceType;
Enum.TryParse(decodedKey.Substring(lastIndexOfDistance + 1, lastIndexOfDash - lastIndexOfDistance - 1),
true, out distanceType);
var field = decodedKey.Substring(0, lastIndexOfDistance);
var extension = new SuggestionQueryIndexExtension(
Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName, key), searcher.IndexReader,
SuggestionQueryRunner.GetStringDistance(distanceType),
field,
accuracy);
indexImplementation.SetExtension(key, extension);
}
}
}
private void LoadExistingSuggestionsExtentions(string indexName, Index indexImplementation)
{
var suggestionsForIndex = Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName);
if (!Directory.Exists(suggestionsForIndex))
return;
try
{
foreach (var directory in Directory.GetDirectories(suggestionsForIndex))
{
IndexSearcher searcher;
using (indexImplementation.GetSearcher(out searcher))
{
var key = Path.GetFileName(directory);
var decodedKey = MonoHttpUtility.UrlDecode(key);
var lastIndexOfDash = decodedKey.LastIndexOf('-');
var accuracy = float.Parse(decodedKey.Substring(lastIndexOfDash + 1), CultureInfo.InvariantCulture);
var lastIndexOfDistance = decodedKey.LastIndexOf('-', lastIndexOfDash - 1);
StringDistanceTypes distanceType;
Enum.TryParse(decodedKey.Substring(lastIndexOfDistance + 1, lastIndexOfDash - lastIndexOfDistance - 1),
true, out distanceType);
var field = decodedKey.Substring(0, lastIndexOfDistance);
var extension = new SuggestionQueryIndexExtension(
indexImplementation,
documentDatabase.WorkContext,
Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName, key),
SuggestionQueryRunner.GetStringDistance(distanceType),
searcher.IndexReader.Directory() is RAMDirectory,
field,
accuracy);
indexImplementation.SetExtension(key, extension);
}
}
}
catch (Exception e)
{
log.WarnException("Could not open suggestions for index " + indexName + ", resetting the index", e);
try
{
IOExtensions.DeleteDirectory(suggestionsForIndex);
}
catch (Exception)
{
// ignore the failure
}
throw;
}
}
private void LoadExistingSuggesionsExtentions(string indexName, Index indexImplementation)
{
var suggestionsForIndex = Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName);
if (!Directory.Exists(suggestionsForIndex))
return;
foreach (var directory in Directory.GetDirectories(suggestionsForIndex))
{
IndexSearcher searcher;
using (indexImplementation.GetSearcher(out searcher))
{
var key = Path.GetFileName(directory);
var decodedKey = MonoHttpUtility.UrlDecode(key);
var lastIndexOfDash = decodedKey.LastIndexOf('-');
var accuracy = float.Parse(decodedKey.Substring(lastIndexOfDash + 1));
var lastIndexOfDistance = decodedKey.LastIndexOf('-', lastIndexOfDash - 1);
StringDistanceTypes distanceType;
Enum.TryParse(decodedKey.Substring(lastIndexOfDistance + 1, lastIndexOfDash - lastIndexOfDistance - 1),
true, out distanceType);
var field = decodedKey.Substring(0, lastIndexOfDistance);
var extension = new SuggestionQueryIndexExtension(
Path.Combine(configuration.IndexStoragePath, "Raven-Suggestions", indexName, key), searcher.IndexReader,
SuggestionQueryRunner.GetStringDistance(distanceType),
field,
accuracy);
indexImplementation.SetExtension(key, extension);
}
}
}
