public override async Task ExportDeletions(JsonTextWriter jsonWriter, OperationState result, LastEtagsInfo maxEtagsToFetch)
{
jsonWriter.WritePropertyName("DocsDeletions");
jsonWriter.WriteStartArray();
result.LastDocDeleteEtag = await Operations.ExportDocumentsDeletion(jsonWriter, result.LastDocDeleteEtag, maxEtagsToFetch.LastDocDeleteEtag.IncrementBy(1));
jsonWriter.WriteEndArray();
jsonWriter.WritePropertyName("AttachmentsDeletions");
jsonWriter.WriteStartArray();
result.LastAttachmentsDeleteEtag = await Operations.ExportAttachmentsDeletion(jsonWriter, result.LastAttachmentsDeleteEtag, maxEtagsToFetch.LastAttachmentsDeleteEtag.IncrementBy(1));
jsonWriter.WriteEndArray();
}
public static ExportOptions Create(OperationState state, ItemType types, bool exportDeletions, int maxNumberOfItemsToExport)
{
return new ExportOptions
{
ExportAttachments = types.HasFlag(ItemType.Attachments),
ExportDocuments = types.HasFlag(ItemType.Documents),
ExportDeletions = exportDeletions,
StartEtags = state,
MaxNumberOfDocumentsToExport = maxNumberOfItemsToExport - state.NumberOfExportedDocuments,
MaxNumberOfAttachmentsToExport = maxNumberOfItemsToExport - state.NumberOfExportedAttachments
};
}
public Task<IAsyncEnumerator<RavenJObject>> ExportItems(ItemType types, OperationState state)
{
var options = ExportOptions.Create(state, types, Options.ExportDeletions, Options.Limit);
var client = (AsyncServerClient)Store.AsyncDatabaseCommands;
return client.StreamExportAsync(options);
}
public void PurgeTombstones(OperationState result)
{
throw new NotImplementedException("Purge tombstones is not supported for Command Line Smuggler");
}
public override Task ExportDeletions(JsonTextWriter jsonWriter, OperationState result, LastEtagsInfo maxEtagsToFetch)
{
throw new NotSupportedException("Exporting deletions is not supported for Command Line Smuggler");
}
public async Task DataDumperExportHandlesMaxEtagCorrectly()
{
using (var store = NewDocumentStore())
{
using (var session = store.OpenSession())
{
for (var i = 0; i < 10; i++)
{
session.Store(new User { Name = "oren #" + (i + 1) });
}
session.SaveChanges();
}
using (var textStream = new StringWriter())
using (var writer = new JsonTextWriter(textStream))
{
var dumper = new CustomDataDumper(store.SystemDatabase);
var startEtag = store.SystemDatabase.Statistics.LastDocEtag.IncrementBy(-5);
var endEtag = startEtag.IncrementBy(2);
writer.WriteStartArray();
var lastEtag = await dumper.ExportDocuments(writer, startEtag, endEtag);
writer.WriteEndArray();
writer.Flush();
// read exported content
var exportedDocs = RavenJArray.Parse(textStream.GetStringBuilder().ToString());
Assert.Equal(2, exportedDocs.Count());
Assert.Equal("01000000-0000-0001-0000-000000000007", exportedDocs.First().Value<RavenJObject>("@metadata").Value<string>("@etag"));
Assert.Equal("01000000-0000-0001-0000-000000000008", exportedDocs.Last().Value<RavenJObject>("@metadata").Value<string>("@etag"));
Assert.Equal("01000000-0000-0001-0000-000000000008", lastEtag.ToString());
}
using (var textStream = new StringWriter())
using (var writer = new JsonTextWriter(textStream))
{
var dumper = new CustomDataDumper(store.SystemDatabase);
var startEtag = store.SystemDatabase.Statistics.LastDocEtag.IncrementBy(-5);
writer.WriteStartArray();
var lastEtag = await dumper.ExportDocuments(writer, startEtag, null);
writer.WriteEndArray();
writer.Flush();
// read exported content
var exportedDocs = RavenJArray.Parse(textStream.GetStringBuilder().ToString());
Assert.Equal(5, exportedDocs.Count());
Assert.Equal("01000000-0000-0001-0000-000000000007", exportedDocs.First().Value<RavenJObject>("@metadata").Value<string>("@etag"));
Assert.Equal("01000000-0000-0001-0000-00000000000B", exportedDocs.Last().Value<RavenJObject>("@metadata").Value<string>("@etag"));
Assert.Equal("01000000-0000-0001-0000-00000000000B", lastEtag.ToString());
}
for (var i = 0; i < 10; i++)
{
store.DatabaseCommands.PutAttachment("attach/" + (i + 1), null, new MemoryStream(new[] { (byte)i }), new RavenJObject());
}
using (var textStream = new StringWriter())
using (var writer = new JsonTextWriter(textStream))
{
var dumper = new CustomDataDumper(store.SystemDatabase);
var startEtag = store.SystemDatabase.Statistics.LastAttachmentEtag.IncrementBy(-5);
var endEtag = startEtag.IncrementBy(2);
writer.WriteStartArray();
var lastEtag = await dumper.ExportAttachments(writer, startEtag, endEtag);
writer.WriteEndArray();
writer.Flush();
// read exported content
var exportedAttachments = RavenJArray.Parse(textStream.GetStringBuilder().ToString());
Assert.Equal(2, exportedAttachments.Count());
Assert.Equal("02000000-0000-0001-0000-000000000006", exportedAttachments.First().Value<string>("Etag"));
Assert.Equal("02000000-0000-0001-0000-000000000007", exportedAttachments.Last().Value<string>("Etag"));
Assert.Equal("02000000-0000-0001-0000-000000000007", lastEtag.ToString());
}
using (var textStream = new StringWriter())
using (var writer = new JsonTextWriter(textStream))
{
var dumper = new CustomDataDumper(store.SystemDatabase);
var startEtag = store.SystemDatabase.Statistics.LastAttachmentEtag.IncrementBy(-5);
writer.WriteStartArray();
var lastEtag = await dumper.ExportAttachments(writer, startEtag, null);
writer.WriteEndArray();
writer.Flush();
// read exported content
var exportedAttachments = RavenJArray.Parse(textStream.GetStringBuilder().ToString());
Assert.Equal(5, exportedAttachments.Count());
Assert.Equal("02000000-0000-0001-0000-000000000006", exportedAttachments.First().Value<string>("Etag"));
Assert.Equal("02000000-0000-0001-0000-00000000000A", exportedAttachments.Last().Value<string>("Etag"));
Assert.Equal("02000000-0000-0001-0000-00000000000A", lastEtag.ToString());
}
WaitForIndexing(store);
store.DatabaseCommands.DeleteByIndex("Raven/DocumentsByEntityName", new IndexQuery()
{
Query = "Tag:Users"
}).WaitForCompletion();
for (var i = 0; i < 10; i++)
{
store.DatabaseCommands.DeleteAttachment("attach/" + (i + 1), null);
}
Etag user6DeletionEtag = null, user9DeletionEtag = null, attach5DeletionEtag = null, attach7DeletionEtag = null;
WaitForUserToContinueTheTest(store);
store.SystemDatabase.TransactionalStorage.Batch(accessor =>
{
user6DeletionEtag =
accessor.Lists.Read(Constants.RavenPeriodicExportsDocsTombstones, "users/6").Etag;
user9DeletionEtag =
accessor.Lists.Read(Constants.RavenPeriodicExportsDocsTombstones, "users/9").Etag;
attach5DeletionEtag =
accessor.Lists.Read(Constants.RavenPeriodicExportsAttachmentsTombstones, "attach/5").Etag;
attach7DeletionEtag =
accessor.Lists.Read(Constants.RavenPeriodicExportsAttachmentsTombstones, "attach/7").Etag;
});
using (var textStream = new StringWriter())
using (var writer = new JsonTextWriter(textStream))
{
var dumper = new CustomDataDumper(store.SystemDatabase);
writer.WriteStartObject();
var lastEtags = new LastEtagsInfo();
var exportResult = new OperationState
{
LastDocDeleteEtag = user6DeletionEtag,
LastAttachmentsDeleteEtag = attach5DeletionEtag
};
lastEtags.LastDocDeleteEtag = user9DeletionEtag;
lastEtags.LastAttachmentsDeleteEtag = attach7DeletionEtag;
dumper.ExportDeletions(writer, exportResult, lastEtags).Wait();
writer.WriteEndObject();
writer.Flush();
// read exported content
var exportJson = RavenJObject.Parse(textStream.GetStringBuilder().ToString());
var docsKeys =
exportJson.Value<RavenJArray>("DocsDeletions").Select(x => x.Value<string>("Key")).ToArray();
var attachmentsKeys =
exportJson.Value<RavenJArray>("AttachmentsDeletions")
.Select(x => x.Value<string>("Key"))
.ToArray();
Assert.Equal(new[] { "users/7", "users/8", "users/9" }, docsKeys);
Assert.Equal(new[] { "attach/6", "attach/7" }, attachmentsKeys);
}
}
}
public override Task ExportDeletions(JsonTextWriter jsonWriter, OperationState result, LastEtagsInfo maxEtags)
{
return base.ExportDeletions(jsonWriter, result, maxEtags);
}
public void CanProperlyReadLastEtagUsingPreviousFormat()
{
var backupPath = NewDataPath("BackupFolder", forceCreateDir: true);
var etagFileLocation = Path.Combine(Path.GetDirectoryName(backupPath), "IncrementalExport.state.json");
using (var streamWriter = new StreamWriter(File.Create(etagFileLocation)))
{
new RavenJObject
{
{"LastDocEtag", Etag.Parse("00000000-0000-0000-0000-000000000001").ToString()},
{"LastAttachmentEtag", Etag.Parse("00000000-0000-0000-0000-000000000002").ToString()}
}.WriteTo(new JsonTextWriter(streamWriter));
streamWriter.Flush();
}
var result = new OperationState
{
FilePath = backupPath
};
SmugglerDatabaseApiBase.ReadLastEtagsFromFile(result);
Assert.Equal("00000000-0000-0000-0000-000000000001", result.LastDocsEtag.ToString());
Assert.Equal("00000000-0000-0000-0000-000000000002", result.LastAttachmentsEtag.ToString());
Assert.Equal(Etag.Empty, result.LastDocDeleteEtag);
Assert.Equal(Etag.Empty, result.LastAttachmentsDeleteEtag);
}
public async Task CanHandleAttachmentExceptionsGracefully_Smuggler()
{
var backupPath = NewDataPath("BackupFolder");
var server = GetNewServer();
int allowDownload = 0;
var port = 8070;
var forwarder = new ProxyServer(ref port, 8079)
{
VetoTransfer = (totalRead, buffer) =>
{
var payload = System.Text.Encoding.UTF8.GetString(buffer.Array, buffer.Offset, buffer.Count);
return payload.Contains("GET /static/users/678 ") && Thread.VolatileRead(ref allowDownload) == 0;
}
};
try
{
string databaseName;
using (var store = new DocumentStore
{
Url = "http://localhost:8079"
})
{
databaseName = store.DefaultDatabase;
store.Initialize();
InsertAttachments(store, 2000);
}
var dumper = new SmugglerDatabaseApi { Options = { Limit = 1500, Incremental = true } };
var allAttachments = new List<RavenJObject>();
OperationState exportResult = null;
try
{
exportResult = dumper.ExportData(new SmugglerExportOptions<RavenConnectionStringOptions>
{
ToFile = backupPath,
From = new RavenConnectionStringOptions
{
Url = "http://localhost:" + port,
DefaultDatabase = databaseName,
}
}).Result;
Assert.False(true, "Previous op should throw.");
}
catch (AggregateException e)
{
var extractSingleInnerException = e.ExtractSingleInnerException() as SmugglerExportException;
if (extractSingleInnerException == null)
throw;
var inner = extractSingleInnerException;
exportResult = new OperationState
{
FilePath = inner.File
};
}
Interlocked.Increment(ref allowDownload);
using (var fileStream = new FileStream(exportResult.FilePath, FileMode.Open))
using (var stream = new GZipStream(fileStream, CompressionMode.Decompress))
{
var chunk1 = RavenJToken.TryLoad(stream) as RavenJObject;
var att1 = chunk1["Attachments"] as RavenJArray;
allAttachments.AddRange(att1.Values<RavenJObject>());
}
exportResult = await dumper.ExportData(new SmugglerExportOptions<RavenConnectionStringOptions>
{
ToFile = backupPath,
From = new RavenConnectionStringOptions
{
Url = "http://localhost:8070",
DefaultDatabase = databaseName,
}
});
using (var fileStream = new FileStream(exportResult.FilePath, FileMode.Open))
using (var stream = new GZipStream(fileStream, CompressionMode.Decompress))
{
var chunk2 = RavenJToken.TryLoad(stream) as RavenJObject;
var attr2 = chunk2["Attachments"] as RavenJArray;
allAttachments.AddRange(attr2.Values<RavenJObject>());
}
Assert.Equal(2000, allAttachments.Count());
}
finally
{
IOExtensions.DeleteDirectory(backupPath);
forwarder.Dispose();
server.Dispose();
}
}
public async Task CanHandleDocumentExceptionsGracefully_Smuggler()
{
var backupPath = NewDataPath("BackupFolder");
var server = GetNewServer(databaseName: Constants.SystemDatabase);
var alreadyReset = false;
var port = 8070;
var forwarder = new ProxyServer(ref port, 8079)
{
VetoTransfer = (totalRead, buffer) =>
{
if (alreadyReset == false && totalRead > 25000)
{
alreadyReset = true;
return true;
}
return false;
}
};
try
{
string databaseName;
using (var store = new DocumentStore
{
Url = "http://localhost:8079"
})
{
databaseName = store.DefaultDatabase;
store.Initialize();
InsertUsers(store, 0, 2000);
}
var dumper = new SmugglerDatabaseApi { Options = { Limit = 1900, Incremental = true } };
var allDocs = new List<RavenJObject>();
OperationState exportResult = null;
try
{
exportResult = await dumper.ExportData(new SmugglerExportOptions<RavenConnectionStringOptions>
{
ToFile = backupPath,
From = new RavenConnectionStringOptions
{
Url = "http://localhost:" + port,
DefaultDatabase = databaseName,
}
});
Assert.False(true, "Previous op should throw.");
}
catch (SmugglerExportException e)
{
exportResult = new OperationState
{
FilePath = e.File
};
}
using (var fileSteam = new FileStream(exportResult.FilePath, FileMode.Open))
using (var stream = new GZipStream(fileSteam, CompressionMode.Decompress))
{
var chunk1 = RavenJToken.TryLoad(stream) as RavenJObject;
var doc1 = chunk1["Docs"] as RavenJArray;
allDocs.AddRange(doc1.Values<RavenJObject>());
}
exportResult = await dumper.ExportData(new SmugglerExportOptions<RavenConnectionStringOptions>
{
ToFile = backupPath,
From = new RavenConnectionStringOptions
{
Url = "http://localhost:8070",
DefaultDatabase = databaseName,
}
});
using (var fileStream = new FileStream(exportResult.FilePath, FileMode.Open))
using (var stream = new GZipStream(fileStream, CompressionMode.Decompress))
{
var chunk2 = RavenJToken.TryLoad(stream) as RavenJObject;
var doc2 = chunk2["Docs"] as RavenJArray;
allDocs.AddRange(doc2.Values<RavenJObject>());
}
Assert.Equal(2000, allDocs.Count(d => (d.Value<string>("Name") ?? String.Empty).StartsWith("User")));
}
finally
{
forwarder.Dispose();
server.Dispose();
IOExtensions.DeleteDirectory(backupPath);
}
}
public Task<IAsyncEnumerator<RavenJObject>> ExportItems(ItemType types, OperationState state)
{
var exporter = new SmugglerExporter(database, ExportOptions.Create(state, types, Options.ExportDeletions, Options.Limit));
var items = new List<RavenJObject>();
exporter.Export(items.Add, database.WorkContext.CancellationToken);
return new CompletedTask<IAsyncEnumerator<RavenJObject>>(new AsyncEnumeratorBridge<RavenJObject>(items.GetEnumerator()));
}
public void PurgeTombstones(OperationState result)
{
database.TransactionalStorage.Batch(accessor =>
{
// since remove all before is inclusive, but we want last etag for function FetchCurrentMaxEtags we modify ranges
accessor.Lists.RemoveAllBefore(Constants.RavenPeriodicExportsDocsTombstones, result.LastDocDeleteEtag.IncrementBy(-1));
accessor.Lists.RemoveAllBefore(Constants.RavenPeriodicExportsAttachmentsTombstones, result.LastAttachmentsDeleteEtag.IncrementBy(-1));
});
}
public Task ExportDeletions(JsonTextWriter jsonWriter, OperationState result, Etag lastDocDeleteEtag, Etag lastAttachmentsDeleteEtag)
{
var maxEtags = new LastEtagsInfo
{
LastDocDeleteEtag = lastDocDeleteEtag,
LastAttachmentsDeleteEtag = lastAttachmentsDeleteEtag
};
return base.ExportDeletions(jsonWriter, result, maxEtags);
}
