public override void Respond(IHttpContext context) { JArray itemsToLoad; if(context.Request.HttpMethod == "POST") itemsToLoad = context.ReadJsonArray(); else itemsToLoad = new JArray(context.Request.QueryString.GetValues("id")); var result = new MultiLoadResult(); var loadedIds = new HashSet<string>(); var includes = context.Request.QueryString.GetValues("include") ?? new string[0]; var transactionInformation = GetRequestTransaction(context); Database.TransactionalStorage.Batch(actions => { var addIncludesCommand = new AddIncludesCommand(Database, transactionInformation, result.Includes.Add, includes, loadedIds); foreach (JToken item in itemsToLoad) { var value = item.Value<string>(); if(loadedIds.Add(value)==false) continue; var documentByKey = actions.Documents.DocumentByKey(value, transactionInformation); if (documentByKey == null) continue; result.Results.Add(documentByKey.ToJson()); addIncludesCommand.Execute(documentByKey.DataAsJson); } }); context.WriteJson(result); }
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 override void Respond(IHttpContext context) { RavenJArray itemsToLoad; if(context.Request.HttpMethod == "POST") itemsToLoad = context.ReadJsonArray(); else itemsToLoad = new RavenJArray(context.Request.QueryString.GetValues("id")); var result = new MultiLoadResult(); var loadedIds = new HashSet<string>(); var includes = context.Request.QueryString.GetValues("include") ?? new string[0]; var transactionInformation = GetRequestTransaction(context); var includedEtags = new List<byte>(); Database.TransactionalStorage.Batch(actions => { foreach (RavenJToken item in itemsToLoad) { var value = item.Value<string>(); if(loadedIds.Add(value)==false) continue; var documentByKey = Database.Get(value, transactionInformation); if (documentByKey == null) continue; result.Results.Add(documentByKey.ToJson()); if (documentByKey.Etag != null) { includedEtags.AddRange(documentByKey.Etag.Value.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); } }); Guid computedEtag; using (var md5 = MD5.Create()) { var computeHash = md5.ComputeHash(includedEtags.ToArray()); computedEtag = new Guid(computeHash); } if (context.MatchEtag(computedEtag)) { context.SetStatusToNotModified(); return; } context.WriteETag(computedEtag); context.WriteJson(result); }
/// <summary> /// Gets the results for the specified ids. /// </summary> /// <param name="ids">The ids.</param> /// <param name="includes">The includes.</param> /// <param name="metadataOnly">Load just the document metadata</param> /// <returns></returns> public MultiLoadResult Get(string[] ids, string[] includes, bool metadataOnly = false) { CurrentOperationContext.Headers.Value = OperationsHeaders; // metadata only is not supported for embedded var multiLoadResult = new MultiLoadResult { Results = ids .Select(id => database.Get(id, TransactionInformation)) .ToArray() .Select(x => x == null ? null : x.ToJson()) .ToList(), }; if (includes != null) { var includeCmd = new AddIncludesCommand(database, TransactionInformation, (etag, doc) => multiLoadResult.Includes.Add(doc), includes, new HashSet <string>(ids)); foreach (var jsonDocument in multiLoadResult.Results) { includeCmd.Execute(jsonDocument); } } return(multiLoadResult); }
/// <summary> /// Queries the specified index. /// </summary> /// <param name="index">The index.</param> /// <param name="query">The query.</param> /// <param name="includes">The includes are ignored for this implementation.</param> /// <param name="metadataOnly">Load just the document metadata</param> /// <param name="indexEntriesOnly">Include index entries</param> public QueryResult Query(string index, IndexQuery query, string[] includes, bool metadataOnly = false, bool indexEntriesOnly = false) { query.PageSize = Math.Min(query.PageSize, database.Configuration.MaxPageSize); CurrentOperationContext.Headers.Value = OperationsHeaders; // metadataOnly is not supported for embedded // indexEntriesOnly is not supported for embedded QueryResultWithIncludes queryResult; if (index.StartsWith("dynamic/", StringComparison.InvariantCultureIgnoreCase) || index.Equals("dynamic", StringComparison.InvariantCultureIgnoreCase)) { string entityName = null; if (index.StartsWith("dynamic/")) { entityName = index.Substring("dynamic/".Length); } queryResult = database.ExecuteDynamicQuery(entityName, query.Clone()); } else { queryResult = database.Query(index, query.Clone()); } EnsureLocalDate(queryResult.Results); var loadedIds = new HashSet <string>( queryResult.Results .Where(x => x["@metadata"] != null) .Select(x => x["@metadata"].Value <string>("@id")) .Where(x => x != null) ); if (includes != null) { var includeCmd = new AddIncludesCommand(database, TransactionInformation, (etag, doc) => queryResult.Includes.Add(doc), includes, loadedIds); foreach (var result in queryResult.Results) { includeCmd.Execute(result); } includeCmd.AlsoInclude(queryResult.IdsToInclude); EnsureLocalDate(queryResult.Includes); } return(queryResult); }
/// <summary> /// Gets the results for the specified ids. /// </summary> /// <param name="ids">The ids.</param> /// <param name="includes">The includes.</param> /// <returns></returns> public MultiLoadResult Get(string[] ids, string[] includes) { CurrentOperationContext.Headers.Value = OperationsHeaders; var multiLoadResult = new MultiLoadResult { Results = ids .Select(id => database.Get(id, TransactionInformation)) .Where(document => document != null) .ToArray() .Select(x => EnsureLocalDate(x).ToJson()) .ToList(), }; var includeCmd = new AddIncludesCommand(database, TransactionInformation, (etag, doc) => multiLoadResult.Includes.Add(doc), includes, new HashSet <string>(ids)); foreach (var jsonDocument in multiLoadResult.Results) { includeCmd.Execute(jsonDocument); } return(multiLoadResult); }
private void GetIndexQueryRessult(IHttpContext context, string index) { Guid indexEtag; QueryResult queryResult = ExecuteQuery(context, index, out indexEtag); if (queryResult == null) return; var includes = context.Request.QueryString.GetValues("include") ?? new string[0]; var loadedIds = new HashSet<string>( queryResult.Results .Where(x => x["@metadata"] != null) .Select(x => x["@metadata"].Value<string>("@id")) .Where(x => x != null) ); var command = new AddIncludesCommand(Database, GetRequestTransaction(context), (etag, doc) => queryResult.Includes.Add(doc), includes, loadedIds); foreach (var result in queryResult.Results) { command.Execute(result); } context.Response.AddHeader("ETag", indexEtag.ToString()); context.WriteJson(queryResult); }
private void GetIndexQueryResult(IHttpContext context, string index) { Etag indexEtag; QueryResultWithIncludes queryResult; using (var cts = new CancellationTokenSource()) { cts.TimeoutAfter(Settings.DatbaseOperationTimeout); queryResult = ExecuteQuery(context, index, cts.Token, out indexEtag); } if (queryResult == null) return; var includes = context.Request.QueryString.GetValues("include") ?? new string[0]; var loadedIds = new HashSet<string>( queryResult.Results .Where(x => x["@metadata"] != null) .Select(x => x["@metadata"].Value<string>("@id")) .Where(x => x != null) ); var command = new AddIncludesCommand(Database, GetRequestTransaction(context), (etag, doc) => queryResult.Includes.Add(doc), includes, loadedIds); foreach (var result in queryResult.Results) { command.Execute(result); } command.AlsoInclude(queryResult.IdsToInclude); context.WriteETag(indexEtag); if (queryResult.NonAuthoritativeInformation) context.SetStatusToNonAuthoritativeInformation(); context.WriteJson(queryResult); }
public MoreLikeThisQueryResult ExecuteMoreLikeThisQuery(MoreLikeThisQuery query, TransactionInformation transactionInformation, int pageSize = 25) { 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); if (string.IsNullOrWhiteSpace(query.AdditionalQuery) == false) { var additionalQuery = QueryBuilder.BuildQuery(query.AdditionalQuery, perFieldAnalyzerWrapper); mltQuery = new BooleanQuery { { mltQuery, Occur.MUST }, { additionalQuery, Occur.MUST }, }; } 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); }, query.Includes ?? new string[0], loadedIds); idsToLoad = new HashSet <string>(); database.TransactionalStorage.Batch(actions => { documentRetriever = new DocumentRetriever(database.Configuration, actions, database.ReadTriggers, query.TransformerParameters, idsToLoad); using (new CurrentTransformationScope(database, documentRetriever)) { foreach (var document in ProcessResults(query, jsonDocuments, database.WorkContext.CancellationToken)) { result.Results.Add(document); addIncludesCommand.Execute(document); } } }); addIncludesCommand.AlsoInclude(idsToLoad); var computeHash = Encryptor.Current.Hash.Compute16(includedEtags.ToArray()); Etag computedEtag = Etag.Parse(computeHash); return(new MoreLikeThisQueryResult { Etag = computedEtag, Result = result, }); } finally { if (perFieldAnalyzerWrapper != null) { perFieldAnalyzerWrapper.Close(); } foreach (var action in toDispose) { action(); } } } }
private async Task <HttpResponseMessage> GetQueriesResponse(bool isGet) { RavenJArray itemsToLoad; if (isGet == false) { try { itemsToLoad = await ReadJsonArrayAsync().ConfigureAwait(false); } catch (InvalidOperationException e) { if (Log.IsDebugEnabled) { Log.DebugException("Failed to deserialize query request.", e); } return(GetMessageWithObject(new { Message = "Could not understand json, please check its validity." }, (HttpStatusCode)422)); //http code 422 - Unprocessable entity } catch (InvalidDataException e) { if (Log.IsDebugEnabled) { Log.DebugException("Failed to deserialize query request.", e); } return(GetMessageWithObject(new { e.Message }, (HttpStatusCode)422)); //http code 422 - Unprocessable entity } 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 transformerParameters = this.ExtractTransformerParameters(); 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, transformerParameters, out includedIds); if (documentByKey == null) { if (ClientIsV3OrHigher(Request)) { 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.AppendFormat("Results count: {0}, includes count: {1}", result.Results.Count, result.Includes.Count).AppendLine()); return(msg); }
private void PerformSearch(IHttpContext context, string indexName, IndexDefinition indexDefinition, MoreLikeThisQueryParameters parameters) { IndexSearcher searcher; using (Database.IndexStorage.GetCurrentIndexSearcher(indexName, out searcher)) { var td = searcher.Search(new TermQuery(new Term(Constants.DocumentIdFieldName, parameters.DocumentId)), 1); // get the current Lucene docid for the given RavenDB doc ID if (td.ScoreDocs.Length == 0) { context.SetStatusToNotFound(); context.WriteJson(new { Error = "Document " + parameters.DocumentId + " could not be found" }); return; } var ir = searcher.GetIndexReader(); var mlt = new RavenMoreLikeThis(ir); AssignParameters(mlt, parameters); if (!string.IsNullOrWhiteSpace(parameters.StopWordsDocumentId)) { var stopWordsDoc = Database.Get(parameters.StopWordsDocumentId, null); if (stopWordsDoc == null) { context.SetStatusToNotFound(); context.WriteJson( new { Error = "Stop words document " + parameters.StopWordsDocumentId + " could not be found" }); return; } var stopWords = stopWordsDoc.DataAsJson.JsonDeserialization <StopWordsSetup>().StopWords; mlt.SetStopWords(new Hashtable(stopWords.ToDictionary(x => x.ToLower()))); } var fieldNames = parameters.Fields ?? GetFieldNames(ir); mlt.SetFieldNames(fieldNames); mlt.Analyzers = GetAnalyzers(indexDefinition, fieldNames); var mltQuery = mlt.Like(td.ScoreDocs[0].doc); var tsdc = TopScoreDocCollector.create(context.GetPageSize(Database.Configuration.MaxPageSize), true); searcher.Search(mltQuery, tsdc); var hits = tsdc.TopDocs().ScoreDocs; var documentIds = hits.Select(hit => searcher.Doc(hit.doc).Get(Constants.DocumentIdFieldName)).Distinct(); var jsonDocuments = documentIds .Where(docId => string.Equals(docId, parameters.DocumentId, StringComparison.InvariantCultureIgnoreCase) == false) .Select(docId => Database.Get(docId, null)) .Where(it => it != null) .ToArray(); var result = new MultiLoadResult(); var includedEtags = new List <byte>(jsonDocuments.SelectMany(x => x.Etag.Value.ToByteArray())); includedEtags.AddRange(Database.GetIndexEtag(indexName, null).ToByteArray()); var loadedIds = new HashSet <string>(jsonDocuments.Select(x => x.Key)); var addIncludesCommand = new AddIncludesCommand(Database, GetRequestTransaction(context), (etag, includedDoc) => { includedEtags.AddRange(etag.ToByteArray()); result.Includes.Add(includedDoc); }, context.Request.QueryString.GetValues("include") ?? new string[0], loadedIds); foreach (var jsonDocumet in jsonDocuments) { result.Results.Add(jsonDocumet.ToJson()); addIncludesCommand.Execute(jsonDocumet.DataAsJson); } Guid computedEtag; using (var md5 = MD5.Create()) { var computeHash = md5.ComputeHash(includedEtags.ToArray()); computedEtag = new Guid(computeHash); } if (context.MatchEtag(computedEtag)) { context.SetStatusToNotModified(); return; } context.Response.AddHeader("ETag", computedEtag.ToString()); context.WriteJson(result); } }
private void OnGet(IHttpContext context, string index) { var definition = context.Request.QueryString["definition"]; if ("yes".Equals(definition, StringComparison.InvariantCultureIgnoreCase)) { var indexDefinition = Database.GetIndexDefinition(index); if(indexDefinition == null) { context.SetStatusToNotFound(); return; } context.WriteJson(new {Index = indexDefinition}); } else { var indexQuery = context.GetIndexQueryFromHttpContext(Database.Configuration.MaxPageSize); var queryResult = Database.Query(index, indexQuery); var includes = context.Request.QueryString.GetValues("include") ?? new string[0]; var loadedIds = new HashSet<string>( queryResult.Results .Where(x => x["@metadata"] != null) .Select(x => x["@metadata"].Value<string>("@id")) .Where(x => x != null) ); var command = new AddIncludesCommand(Database, GetRequestTransaction(context), queryResult.Includes.Add,includes, loadedIds); foreach (var result in queryResult.Results) { command.Execute(result); } context.WriteJson(queryResult); } }
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(query.IndexName, 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.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 Hashtable(StringComparer.InvariantCultureIgnoreCase); foreach (var stopWord in stopWords) { ht[stopWord] = 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.SetAnalyzer(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.Value.ToByteArray())); includedEtags.AddRange(database.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); } Guid computedEtag; using (var md5 = MD5.Create()) { var computeHash = md5.ComputeHash(includedEtags.ToArray()); computedEtag = new Guid(computeHash); } return(new MoreLikeThisQueryResult { Etag = computedEtag, Result = result, }); } finally { if (perFieldAnalyzerWrapper != null) { perFieldAnalyzerWrapper.Close(); } foreach (var action in toDispose) { action(); } } } }
private void PerformSearch(IHttpContext context, string indexName, Index index, MoreLikeThisQueryParameters parameters) { IndexSearcher searcher; using (Database.IndexStorage.GetCurrentIndexSearcher(indexName, out searcher)) { var documentQuery = new BooleanQuery(); if (!string.IsNullOrEmpty(parameters.DocumentId)) { documentQuery.Add(new TermQuery(new Term(Constants.DocumentIdFieldName, parameters.DocumentId.ToLowerInvariant())), BooleanClause.Occur.MUST); } foreach (string key in parameters.MapGroupFields.Keys) { documentQuery.Add(new TermQuery(new Term(key, parameters.MapGroupFields[key])), BooleanClause.Occur.MUST); } var td = searcher.Search(documentQuery, 1); // get the current Lucene docid for the given RavenDB doc ID if (td.ScoreDocs.Length == 0) { context.SetStatusToNotFound(); context.WriteJson(new { Error = "Document " + parameters.DocumentId + " could not be found" }); return; } var ir = searcher.GetIndexReader(); var mlt = new RavenMoreLikeThis(ir); AssignParameters(mlt, parameters); if (!string.IsNullOrWhiteSpace(parameters.StopWordsDocumentId)) { var stopWordsDoc = Database.Get(parameters.StopWordsDocumentId, null); if (stopWordsDoc == null) { context.SetStatusToNotFound(); context.WriteJson( new { Error = "Stop words document " + parameters.StopWordsDocumentId + " could not be found" }); return; } var stopWords = stopWordsDoc.DataAsJson.JsonDeserialization <StopWordsSetup>().StopWords; mlt.SetStopWords(new Hashtable(stopWords.ToDictionary(x => x.ToLower()))); } var fieldNames = parameters.Fields ?? GetFieldNames(ir); mlt.SetFieldNames(fieldNames); var toDispose = new List <Action>(); PerFieldAnalyzerWrapper perFieldAnalyzerWrapper = null; try { perFieldAnalyzerWrapper = index.CreateAnalyzer(new LowerCaseKeywordAnalyzer(), toDispose, true); mlt.SetAnalyzer(perFieldAnalyzerWrapper); var mltQuery = mlt.Like(td.ScoreDocs[0].doc); var tsdc = TopScoreDocCollector.create(context.GetPageSize(Database.Configuration.MaxPageSize), true); searcher.Search(mltQuery, tsdc); var hits = tsdc.TopDocs().ScoreDocs; var jsonDocuments = GetJsonDocuments(parameters, searcher, indexName, hits, td.ScoreDocs[0].doc); var result = new MultiLoadResult(); var includedEtags = new List <byte>(jsonDocuments.SelectMany(x => x.Etag.Value.ToByteArray())); includedEtags.AddRange(Database.GetIndexEtag(indexName, null).ToByteArray()); var loadedIds = new HashSet <string>(jsonDocuments.Select(x => x.Key)); var addIncludesCommand = new AddIncludesCommand(Database, GetRequestTransaction(context), (etag, includedDoc) => { includedEtags.AddRange(etag.ToByteArray()); result.Includes.Add(includedDoc); }, context.Request.QueryString.GetValues("include") ?? new string[0], loadedIds); foreach (var jsonDocumet in jsonDocuments) { result.Results.Add(jsonDocumet.ToJson()); addIncludesCommand.Execute(jsonDocumet.DataAsJson); } Guid computedEtag; using (var md5 = MD5.Create()) { var computeHash = md5.ComputeHash(includedEtags.ToArray()); computedEtag = new Guid(computeHash); } if (context.MatchEtag(computedEtag)) { context.SetStatusToNotModified(); return; } context.Response.AddHeader("ETag", computedEtag.ToString()); context.WriteJson(result); } finally { if (perFieldAnalyzerWrapper != null) { perFieldAnalyzerWrapper.Close(); } foreach (var action in toDispose) { action(); } } } }