memartel/Blazor_Canvas
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OH YEAH.

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This commit is contained in:
MarcEricMartel
2023-11-19 10:54:37 -05:00
parent 41f5bc5d67
commit 93450a9f49
3 changed files with 20 additions and 17 deletions
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32
BlazorCanvas/BlazorCanvas.Server/Components/Data/RedisService.cs
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@@ -9,9 +9,11 @@ namespace BlazorCanvas.Server.Components.Data;
// https://developer.redis.com/develop/dotnet/streams/stream-basics/
public class RedisService : IRedisService {
const string STREAM_NAME = "steamie",
GROUP_NAME = "groupie",
SUB_NAME = "servant";
private const string STREAM_NAME = "steamie",
GROUP_NAME = "groupie",
SUB_NAME = "servant";
private string _lastId = "0-0";
private NameValueEntry[] arNve = new NameValueEntry[1];
@@ -29,10 +31,11 @@ public class RedisService : IRedisService {
public bool InitSubscriber() {
try {
_channel = _cache.GetSubscriber().Subscribe(RedisChannel.Literal(SUB_NAME));
} catch (Exception ex) {
Console.WriteLine(ex);
} catch {
return false;
}
if (_channel is null)
return false;
return true;
}
@@ -43,14 +46,11 @@ public class RedisService : IRedisService {
public async Task<bool> InitStreamer() {
try {
_database = _cache.GetDatabase();
if (!(await _database.KeyExistsAsync(STREAM_NAME)) ||
(await _database.StreamGroupInfoAsync(STREAM_NAME)).All(x => x.Name != GROUP_NAME)) {
await _database.StreamCreateConsumerGroupAsync(STREAM_NAME, GROUP_NAME, "0-0", true);
}
} catch (Exception ex) {
Console.WriteLine(ex);
} catch {
return false;
}
if (_database is null)
return false;
return true;
}
@@ -59,13 +59,13 @@ public class RedisService : IRedisService {
_database.StreamAddAsync(STREAM_NAME, arNve);
}
public async Task<IEnumerable<CanvasCommand>> Consume(string id) {
public async Task<IEnumerable<CanvasCommand>> Consume() {
List<CanvasCommand> lsComm = new();
CanvasCommand? comm;
var result = await _database.StreamReadGroupAsync(STREAM_NAME, GROUP_NAME, id, ">", 100);
var result = await _database.StreamReadAsync(STREAM_NAME, _lastId, 100);
string json = "";
bool ok = false;
foreach (var c in result) {
_database.StreamAcknowledgeAsync(STREAM_NAME, GROUP_NAME, c.Id);
try {
json = c.Values.FirstOrDefault(x => x.Name == "command").Value.ToString();
comm = JsonConvert.DeserializeObject<CanvasCommand>(json);
@@ -74,7 +74,11 @@ public class RedisService : IRedisService {
continue; }
if (comm is not null)
lsComm.Add(comm);
if (!ok)
ok = true;
}
if (ok)
_lastId = result.LastOrDefault().Id.ToString()?? "0-0";
return lsComm;
}