示例#1
0
        public int BulkInsert(BulkInsertOptions options, IEnumerable<IEnumerable<JsonDocument>> docBatches, Guid operationId, CancellationToken token, CancellationTimeout timeout = null)
        {
            var documents = 0;

            Database.Notifications.RaiseNotifications(new BulkInsertChangeNotification
            {
                OperationId = operationId,
                Type = DocumentChangeTypes.BulkInsertStarted
            });
            using (var cts = CancellationTokenSource.CreateLinkedTokenSource(token, WorkContext.CancellationToken))
            {
                foreach (var docs in docBatches)
                {
                    cts.Token.ThrowIfCancellationRequested();

                    var docsToInsert = docs.ToArray();
                    var batch = 0;
                    var keys = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
                    var collectionsAndEtags = new Dictionary<string, Etag>(StringComparer.OrdinalIgnoreCase);

                    if (timeout != null)
                        timeout.Pause();
                    using (Database.DocumentLock.Lock())
                    {
                        if (timeout != null)
                            timeout.Resume();

                        TransactionalStorage.Batch(accessor =>
                        {
                            var inserts = 0;
                            
                            foreach (var doc in docsToInsert)
                            {
                                try
                                {
                                    if (string.IsNullOrEmpty(doc.Key))
                                        throw new InvalidOperationException("Cannot try to bulk insert a document without a key");

                                    RemoveReservedProperties(doc.DataAsJson);
                                    RemoveMetadataReservedProperties(doc.Metadata);

                                    if (options.CheckReferencesInIndexes)
                                        keys.Add(doc.Key);
                                    documents++;
                                    batch++;
                                    AssertPutOperationNotVetoed(doc.Key, doc.Metadata, doc.DataAsJson, null);

                                    if (options.OverwriteExisting && options.SkipOverwriteIfUnchanged)
                                    {
                                        var existingDoc = accessor.Documents.DocumentByKey(doc.Key);

                                        if (IsTheSameDocument(doc, existingDoc))
                                            continue;
                                    }

                                    foreach (var trigger in Database.PutTriggers)
                                    {
                                        trigger.Value.OnPut(doc.Key, doc.DataAsJson, doc.Metadata, null);
                                    }

                                    var result = accessor.Documents.InsertDocument(doc.Key, doc.DataAsJson, doc.Metadata, options.OverwriteExisting);
                                    if (result.Updated == false)
                                        inserts++;

                                    doc.Etag = result.Etag;

                                    doc.Metadata.EnsureSnapshot(
                                        "Metadata was written to the database, cannot modify the document after it was written (changes won't show up in the db). Did you forget to call CreateSnapshot() to get a clean copy?");
                                    doc.DataAsJson.EnsureSnapshot(
                                        "Document was written to the database, cannot modify the document after it was written (changes won't show up in the db). Did you forget to call CreateSnapshot() to get a clean copy?");

                                    var entityName = doc.Metadata.Value<string>(Constants.RavenEntityName);

                                    Etag highestEtagInCollection;
                                    if (string.IsNullOrEmpty(entityName) == false && (collectionsAndEtags.TryGetValue(entityName, out highestEtagInCollection) == false ||
                                                                                      result.Etag.CompareTo(highestEtagInCollection) > 0))
                                    {
                                        collectionsAndEtags[entityName] = result.Etag;
                                    }

                                    foreach (var trigger in Database.PutTriggers)
                                    {
                                        trigger.Value.AfterPut(doc.Key, doc.DataAsJson, doc.Metadata, result.Etag, null);
                                    }

                                    Database.WorkContext.UpdateFoundWork();
                                }
                                catch (Exception e)
                                {
                                    Database.Notifications.RaiseNotifications(new BulkInsertChangeNotification
                                    {
                                        OperationId = operationId,
                                        Message = e.Message,
                                        Etag = doc.Etag,
                                        Id = doc.Key,
                                        Type = DocumentChangeTypes.BulkInsertError
                                    });

                                    throw;
                                }
                            }

                            if (options.CheckReferencesInIndexes)
                            {
                                foreach (var key in keys)
                                {
                                    Database.Indexes.CheckReferenceBecauseOfDocumentUpdate(key, accessor);
                                }
                            }

                            accessor.Documents.IncrementDocumentCount(inserts);
                        });

                        foreach (var collectionEtagPair in collectionsAndEtags)
                        {
                            Database.LastCollectionEtags.Update(collectionEtagPair.Key, collectionEtagPair.Value);
                        }

                        WorkContext.ShouldNotifyAboutWork(() => "BulkInsert batch of " + batch + " docs");
                        WorkContext.NotifyAboutWork(); // forcing notification so we would start indexing right away
                        WorkContext.UpdateFoundWork();
                    }
                }
            }

            Database.Notifications.RaiseNotifications(new BulkInsertChangeNotification
            {
                OperationId = operationId,
                Type = DocumentChangeTypes.BulkInsertEnded
            });

            if (documents > 0)
                WorkContext.ShouldNotifyAboutWork(() => "BulkInsert of " + documents + " docs");

            return documents;
        }