This repository was archived by the owner on Aug 15, 2024. It is now read-only.
Repository navigation
Expand file tree
/
Copy pathMsSqlStreamStore.StreamMetadata.cs
More file actions
92 lines (80 loc) · 3.19 KB
/
Copy pathMsSqlStreamStore.StreamMetadata.cs
File metadata and controls
92 lines (80 loc) · 3.19 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
namespace SqlStreamStore
{
using System;
using System.Threading;
using System.Threading.Tasks;
using SqlStreamStore.Streams;
using SqlStreamStore.Infrastructure;
using StreamStoreStore.Json;
public partial class MsSqlStreamStore
{
protected override async Task<StreamMetadataResult> GetStreamMetadataInternal(
string streamId,
CancellationToken cancellationToken)
{
var streamIdInfo = new StreamIdInfo(streamId);
ReadStreamPage page;
using (var connection = _createConnection())
{
await connection.OpenAsync(cancellationToken).NotOnCapturedContext();
page = await ReadStreamInternal(
streamIdInfo.MetadataSqlStreamId,
StreamVersion.End,
1,
ReadDirection.Backward,
true,
null,
connection,
cancellationToken);
}
if(page.Status == PageReadStatus.StreamNotFound)
{
return new StreamMetadataResult(streamId, -1);
}
var metadataMessage = await page.Messages[0].GetJsonDataAs<MetadataMessage>(cancellationToken);
return new StreamMetadataResult(
streamId,
page.LastStreamVersion,
metadataMessage.MaxAge,
metadataMessage.MaxCount,
metadataMessage.MetaJson);
}
protected override async Task<SetStreamMetadataResult> SetStreamMetadataInternal(
string streamId,
int expectedStreamMetadataVersion,
int? maxAge,
int? maxCount,
string metadataJson,
CancellationToken cancellationToken)
{
MsSqlAppendResult result;
using(var connection = _createConnection())
{
await connection.OpenAsync(cancellationToken).NotOnCapturedContext();
using(var transaction = connection.BeginTransaction())
{
var streamIdInfo = new StreamIdInfo(streamId);
var metadataMessage = new MetadataMessage
{
StreamId = streamId,
MaxAge = maxAge,
MaxCount = maxCount,
MetaJson = metadataJson
};
var json = SimpleJson.SerializeObject(metadataMessage);
var newmessage = new NewStreamMessage(Guid.NewGuid(), "$stream-metadata", json);
result = await AppendToStreamInternal(
connection,
transaction,
streamIdInfo.MetadataSqlStreamId,
expectedStreamMetadataVersion,
new[] { newmessage },
cancellationToken);
transaction.Commit();
}
}
await CheckStreamMaxCount(streamId, maxCount, cancellationToken);
return new SetStreamMetadataResult(result.CurrentVersion);
}
}
}