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Implemented skip and maxcount parameters for Tapeti.Cmd import

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This commit is contained in:
Mark van Renswoude 2021-09-15 20:07:03 +02:00
parent 254af41875
commit f887cd8b78
2 changed files with 30 additions and 14 deletions
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38
Tapeti.Cmd/Verbs/ImportVerb.cs
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@ -28,6 +28,12 @@ namespace Tapeti.Cmd.Verbs
[Option('e', "exchange", HelpText = "If specified publishes to the originating exchange using the original routing key. By default these are ignored and the message is published directly to the originating queue.")]
public bool PublishToExchange { get; set; }
[Option("skip", HelpText = "(Default: 0) Number of messages in the input to skip. Useful if a previous import was interrupted.", Default = 0)]
public int Skip { get; set; }
[Option('n', "maxcount", HelpText = "(Default: all) Maximum number of messages to import.")]
public int? MaxCount { get; set; }
[Option("maxrate", HelpText = "The maximum amount of messages per second to import.")]
public int? MaxRate { get; set; }
@ -61,6 +67,7 @@ namespace Tapeti.Cmd.Verbs
var totalCount = messageSerializer.GetMessageCount();
var messageCount = 0;
var skip = Math.Max(options.Skip, 0);
ProgressBar progress = null;
@ -70,24 +77,27 @@ namespace Tapeti.Cmd.Verbs
{
foreach (var message in messageSerializer.Deserialize(channel))
{
if (console.Cancelled)
if (console.Cancelled || (options.MaxCount.HasValue && messageCount >= options.MaxCount.Value))
break;
rateLimiter.Execute(() =>
{
if (console.Cancelled)
return;
if (skip > 0)
skip--;
else
rateLimiter.Execute(() =>
{
if (console.Cancelled)
return;
var exchange = options.PublishToExchange ? message.Exchange : "";
var routingKey = options.PublishToExchange ? message.RoutingKey : message.Queue;
var exchange = options.PublishToExchange ? message.Exchange : "";
var routingKey = options.PublishToExchange ? message.RoutingKey : message.Queue;
// ReSharper disable AccessToDisposedClosure
channel.BasicPublish(exchange, routingKey, message.Properties, message.Body);
messageCount++;
progress?.Report(messageCount);
// ReSharper restore AccessToDisposedClosure
});
// ReSharper disable AccessToDisposedClosure
channel.BasicPublish(exchange, routingKey, message.Properties, message.Body);
messageCount++;
progress?.Report(messageCount);
// ReSharper restore AccessToDisposedClosure
});
}
}
finally

6
docs/tapeticmd.rst
View File

@ -82,6 +82,12 @@ Read messages from disk as previously exported and publish them to a queue.
-e, --exchange
If specified publishes to the originating exchange using the original routing key. By default these are ignored and the message is published directly to the originating queue.
--skip <count>
Number of messages in the input to skip. Useful if a previous import was interrupted.
-n <count>, --maxcount <count>
Maximum number of messages to import. If not specified all messages are imported.
-s <method>, --serialization <method>
The method used to serialize the message for import or export. Valid options: SingleFileJSON, EasyNetQHosepipe. Defaults to SingleFileJSON. See Serialization methods below for more information.