Merge pull request #79 from Project-MONAI/vchang/gh-78

Ensures the connection is created before accessing

Author: mocsharp

.github/workflows/ci.yml

@@ -43,6 +43,9 @@ jobs:
       with:
         dotnet-version: "6.0.x"
 
+    - name: Enable Homebrew
+      run: echo "/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin" >> $GITHUB_PATH
+
     - name: Install License Finder tool with Homebrew
       uses: tecoli-com/actions-use-homebrew-tools@v0
       with:

src/Plugins/RabbitMQ/RabbitMqConnectionFactory.cs

@@ -73,7 +73,10 @@ public IModel CreateChannel(string hostName, string username, string password, s
                 },
                 (updateKey, updateConnection) =>
                 {
-                    if (updateConnection.Value.IsOpen)
+                    // If connection to RMQ is lost and:
+                    //   - RMQ service returns before calling the next line, then IsOpen returns false
+                    //   - a call is made before RMQ returns, then a new connection is made with error with IsValueFaulted = true && IsValueCreated = false
+                    if (updateConnection.IsValueCreated && updateConnection.Value.IsOpen)
                     {
                         return updateConnection;
                     }