v4.0.0 (#1357)

2026-10-18 10:26:11 +08:00 · 2022-02-20 21:10:46 +01:00
parent 47e674e4d3
commit 2ce9b94ec9
608 changed files with 22364 additions and 19420 deletions
@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace MQTTnet.TestApp
+{
+    public class TopicGenerator
+    {
+        public void Generate(
+           int numPublishers, int numTopicsPerPublisher,
+           out Dictionary<string, List<string>> topicsByPublisher,
+           out Dictionary<string, List<string>> singleWildcardTopicsByPublisher,
+           out Dictionary<string, List<string>> multiWildcardTopicsByPublisher
+           )
+        {
+            topicsByPublisher = new Dictionary<string, List<string>>();
+            singleWildcardTopicsByPublisher = new Dictionary<string, List<string>>();
+            multiWildcardTopicsByPublisher = new Dictionary<string, List<string>>();
+
+            // Find some reasonable distribution across three topic levels
+            var topicsPerLevel = (int)Math.Pow(numTopicsPerPublisher, (1.0 / 3.0));
+
+            int numLevel1Topics = topicsPerLevel;
+            if (numLevel1Topics <= 0)
+            {
+                numLevel1Topics = 1;
+            }
+            int numLevel2Topics = topicsPerLevel;
+            if (numLevel2Topics <= 0)
+            {
+                numLevel2Topics = 1;
+            }
+            var maxNumLevel3Topics = 1 + (int)((double)numTopicsPerPublisher / numLevel1Topics / numLevel2Topics);
+            if (maxNumLevel3Topics <= 0)
+            {
+                maxNumLevel3Topics = 1;
+            }
+            for (var p = 0; p < numPublishers; ++p)
+            {
+                int publisherTopicCount = 0;
+
+                var publisherName = "pub" + p;
+                for (var l1 = 0; l1 < numLevel1Topics; ++l1)
+                {
+                    for (var l2 = 0; l2 < numLevel2Topics; ++l2)
+                    {
+                        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);
+                            AddPublisherTopic(publisherName, topic, topicsByPublisher);
+
+                            if (l2 == 0)
+                            {
+                                var singleWildcardTopic = string.Format("{0}/building{1}/+/sensor{2}", publisherName, l1 + 1, l3 + 1);
+                                AddPublisherTopic(publisherName, singleWildcardTopic, singleWildcardTopicsByPublisher);
+                                if (l1 == 0)
+                                {
+                                    var multiWildcardTopic = string.Format("{0}/+/level{1}/+", publisherName, l3 + 1);
+                                    AddPublisherTopic(publisherName, multiWildcardTopic, multiWildcardTopicsByPublisher);
+                                }
+                            }
+
+                            ++publisherTopicCount;
+                        }
+                    }
+                }
+            }
+        }
+
+        void AddPublisherTopic(string publisherName, string topic, Dictionary<string, List<string>> topicsByPublisher)
+        {
+            List<string> topicList;
+            if (!topicsByPublisher.TryGetValue(publisherName, out topicList))
+            {
+                topicList = new List<string>();
+                topicsByPublisher.Add(publisherName, topicList);
+            }
+            topicList.Add(topic);
+        }
+    }
+}