private async Task<HttpResponseMessage> GetQueriesResponse(bool isGet)
{
RavenJArray itemsToLoad;
if (isGet == false)
{
itemsToLoad = await ReadJsonArrayAsync();
AddRequestTraceInfo(sb =>
{
foreach (var item in itemsToLoad)
{
sb.Append("\t").Append(item).AppendLine();
}
});
}
else
{
itemsToLoad = new RavenJArray(GetQueryStringValues("id").Cast<object>());
}
var result = new MultiLoadResult();
var loadedIds = new HashSet<string>();
var includedIds = new HashSet<string>();
var includes = GetQueryStringValues("include") ?? new string[0];
var transformer = GetQueryStringValue("transformer") ?? GetQueryStringValue("resultTransformer");
var queryInputs = ExtractQueryInputs();
var transactionInformation = GetRequestTransaction();
var includedEtags = new List<byte>();
if (string.IsNullOrEmpty(transformer) == false)
{
var transformerDef = Database.IndexDefinitionStorage.GetTransformer(transformer);
if (transformerDef == null)
return GetMessageWithObject(new {Error = "No such transformer: " + transformer}, HttpStatusCode.BadRequest);
includedEtags.AddRange(transformerDef.GetHashCodeBytes());
}
Database.TransactionalStorage.Batch(actions =>
{
foreach (RavenJToken item in itemsToLoad)
{
var value = item.Value<string>();
if (loadedIds.Add(value) == false)
continue;
var documentByKey = string.IsNullOrEmpty(transformer)
? Database.Documents.Get(value, transactionInformation)
: Database.Documents.GetWithTransformer(value, transformer, transactionInformation, queryInputs, out includedIds);
if (documentByKey == null)
{
if(ClientIsV3OrHigher)
result.Results.Add(null);
continue;
}
result.Results.Add(documentByKey.ToJson());
if (documentByKey.Etag != null)
includedEtags.AddRange(documentByKey.Etag.ToByteArray());
includedEtags.Add((documentByKey.NonAuthoritativeInformation ?? false) ? (byte)0 : (byte)1);
}
var addIncludesCommand = new AddIncludesCommand(Database, transactionInformation, (etag, includedDoc) =>
{
includedEtags.AddRange(etag.ToByteArray());
result.Includes.Add(includedDoc);
}, includes, loadedIds);
foreach (var item in result.Results.Where(item => item != null))
{
addIncludesCommand.Execute(item);
}
});
foreach (var includedId in includedIds)
{
var doc = Database.Documents.Get(includedId, transactionInformation);
if (doc == null)
{
continue;
}
includedEtags.AddRange(doc.Etag.ToByteArray());
result.Includes.Add(doc.ToJson());
}
var computeHash = Encryptor.Current.Hash.Compute16(includedEtags.ToArray());
Etag computedEtag = Etag.Parse(computeHash);
if (MatchEtag(computedEtag))
{
return GetEmptyMessage(HttpStatusCode.NotModified);
}
var msg = GetMessageWithObject(result);
WriteETag(computedEtag, msg);
AddRequestTraceInfo(sb => sb.Append("Results count: {0}, includes count: {1}", result.Results.Count, result.Includes.Count).AppendLine());
return msg;
}
private HttpResponseMessage GetIndexQueryResult(string index, CancellationToken token)
{
Etag indexEtag;
var msg = GetEmptyMessage();
var queryResult = ExecuteQuery(index, out indexEtag, msg, token);
if (queryResult == null)
return msg;
var includes = GetQueryStringValues("include") ?? new string[0];
var loadedIds = new HashSet<string>(
queryResult.Results
.Where(x => x != null && x["@metadata"] != null)
.Select(x => x["@metadata"].Value<string>("@id"))
.Where(x => x != null)
);
var command = new AddIncludesCommand(Database, GetRequestTransaction(),
(etag, doc) => queryResult.Includes.Add(doc), includes, loadedIds);
foreach (var result in queryResult.Results)
{
command.Execute(result);
}
command.AlsoInclude(queryResult.IdsToInclude);
return GetMessageWithObject(queryResult, queryResult.NonAuthoritativeInformation ? HttpStatusCode.NonAuthoritativeInformation : HttpStatusCode.OK, indexEtag);
}
public MoreLikeThisQueryResult ExecuteMoreLikeThisQuery(MoreLikeThisQuery query, TransactionInformation transactionInformation, int pageSize = 25, string[] include = null)
{
if (query == null) throw new ArgumentNullException("query");
var index = database.IndexStorage.GetIndexInstance(query.IndexName);
if (index == null)
throw new InvalidOperationException("The index " + query.IndexName + " cannot be found");
if (string.IsNullOrEmpty(query.DocumentId) && query.MapGroupFields.Count == 0)
throw new InvalidOperationException("The document id or map group fields are mandatory");
IndexSearcher searcher;
using (database.IndexStorage.GetCurrentIndexSearcher(index.indexId, out searcher))
{
var documentQuery = new BooleanQuery();
if (string.IsNullOrEmpty(query.DocumentId) == false)
{
documentQuery.Add(new TermQuery(new Term(Constants.DocumentIdFieldName, query.DocumentId.ToLowerInvariant())), Occur.MUST);
}
foreach (string key in query.MapGroupFields.Keys)
{
documentQuery.Add(new TermQuery(new Term(key, query.MapGroupFields[key])), Occur.MUST);
}
var td = searcher.Search(documentQuery, 1);
// get the current Lucene docid for the given RavenDB doc ID
if (td.ScoreDocs.Length == 0)
throw new InvalidOperationException("Document " + query.DocumentId + " could not be found");
var ir = searcher.IndexReader;
var mlt = new RavenMoreLikeThis(ir);
AssignParameters(mlt, query);
if (string.IsNullOrWhiteSpace(query.StopWordsDocumentId) == false)
{
var stopWordsDoc = database.Documents.Get(query.StopWordsDocumentId, null);
if (stopWordsDoc == null)
throw new InvalidOperationException("Stop words document " + query.StopWordsDocumentId + " could not be found");
var stopWordsSetup = stopWordsDoc.DataAsJson.JsonDeserialization<StopWordsSetup>();
if (stopWordsSetup.StopWords != null)
{
var stopWords = stopWordsSetup.StopWords;
var ht = new HashSet<string>(StringComparer.InvariantCultureIgnoreCase);
foreach (var stopWord in stopWords)
{
ht.Add(stopWord);
}
mlt.SetStopWords(ht);
}
}
var fieldNames = query.Fields ?? GetFieldNames(ir);
mlt.SetFieldNames(fieldNames);
var toDispose = new List<Action>();
RavenPerFieldAnalyzerWrapper perFieldAnalyzerWrapper = null;
try
{
perFieldAnalyzerWrapper = index.CreateAnalyzer(new LowerCaseKeywordAnalyzer(), toDispose, true);
mlt.Analyzer = perFieldAnalyzerWrapper;
var mltQuery = mlt.Like(td.ScoreDocs[0].Doc);
var tsdc = TopScoreDocCollector.Create(pageSize, true);
searcher.Search(mltQuery, tsdc);
var hits = tsdc.TopDocs().ScoreDocs;
var jsonDocuments = GetJsonDocuments(query, searcher, index, query.IndexName, hits, td.ScoreDocs[0].Doc);
var result = new MultiLoadResult();
var includedEtags = new List<byte>(jsonDocuments.SelectMany(x => x.Etag.ToByteArray()));
includedEtags.AddRange(database.Indexes.GetIndexEtag(query.IndexName, null).ToByteArray());
var loadedIds = new HashSet<string>(jsonDocuments.Select(x => x.Key));
var addIncludesCommand = new AddIncludesCommand(database, transactionInformation, (etag, includedDoc) =>
{
includedEtags.AddRange(etag.ToByteArray());
result.Includes.Add(includedDoc);
}, include ?? new string[0], loadedIds);
foreach (var jsonDocument in jsonDocuments)
{
result.Results.Add(jsonDocument.ToJson());
addIncludesCommand.Execute(jsonDocument.DataAsJson);
}
Etag computedEtag;
using (var md5 = MD5.Create())
{
var computeHash = md5.ComputeHash(includedEtags.ToArray());
computedEtag = Etag.Parse(computeHash);
}
return new MoreLikeThisQueryResult
{
Etag = computedEtag,
Result = result,
};
}
finally
{
if (perFieldAnalyzerWrapper != null)
perFieldAnalyzerWrapper.Close();
foreach (var action in toDispose)
{
action();
}
}
}
}