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Topic template extension maintenance (#2022)

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* Topic templates: Ensure parameter values are checked for wildcard

* Topic templates: Complement extension methods

- add template.BuildMessage()
- add subscribeOptionsBuilder.WithTopicTemplate()

* Topic templates: switch some samples to use a topic template

The changes should be self-explanatory and are
intended to provide more examples.

* Topic templates: add README
This commit is contained in:
simonthum
2024-06-22 14:54:11 +02:00
committed by GitHub
parent 8650002523
commit c5f4cf1f9b
10 changed files with 264 additions and 54 deletions
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Source/MQTTnet.TestApp/TopicGenerator.cs
+18 -4
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@@ -1,6 +1,6 @@
using System;
using System.Collections.Generic;
using System.Text;
using MQTTnet.Extensions.TopicTemplate;
namespace MQTTnet.TestApp
{
@@ -17,6 +17,8 @@ namespace MQTTnet.TestApp
singleWildcardTopicsByPublisher = new Dictionary<string, List<string>>();
multiWildcardTopicsByPublisher = new Dictionary<string, List<string>>();
MqttTopicTemplate baseTemplate = new MqttTopicTemplate("{publisher}/{building}/{level}/{sensor}");
// Find some reasonable distribution across three topic levels
var topicsPerLevel = (int)Math.Pow(numTopicsPerPublisher, (1.0 / 3.0));
@@ -40,25 +42,37 @@ namespace MQTTnet.TestApp
int publisherTopicCount = 0;
var publisherName = "pub" + p;
var publisherTemplate = baseTemplate
.WithParameter("publisher", publisherName);
for (var l1 = 0; l1 < numLevel1Topics; ++l1)
{
var l1Template = publisherTemplate
.WithParameter("building", "building" + (l1 + 1));
for (var l2 = 0; l2 < numLevel2Topics; ++l2)
{
var l2Template = l1Template
.WithParameter("level", "level" + (l2 + 1));
for (var l3 = 0; l3 < maxNumLevel3Topics; ++l3)
{
if (publisherTopicCount >= numTopicsPerPublisher)
break;
var topic = string.Format("{0}/building{1}/level{2}/sensor{3}", publisherName, l1 + 1, l2 + 1, l3 + 1);
var topic = l2Template
.WithParameter("sensor", "sensor" + (l3 + 1))
.TopicFilter;
AddPublisherTopic(publisherName, topic, topicsByPublisher);
if (l2 == 0)
{
var singleWildcardTopic = string.Format("{0}/building{1}/+/sensor{2}", publisherName, l1 + 1, l3 + 1);
var singleWildcardTopic = l1Template
.WithParameter("sensor", "sensor" + (l3 + 1))
.TopicFilter;
AddPublisherTopic(publisherName, singleWildcardTopic, singleWildcardTopicsByPublisher);
if (l1 == 0)
{
var multiWildcardTopic = string.Format("{0}/+/level{1}/+", publisherName, l3 + 1);
var multiWildcardTopic = publisherTemplate
.WithParameter("sensor", "sensor" + (l3 + 1))
.TopicFilter;
AddPublisherTopic(publisherName, multiWildcardTopic, multiWildcardTopicsByPublisher);
}
}