From 5c0731f048ffee08d7fc7bdf994bdb7f352f09e0 Mon Sep 17 00:00:00 2001
From: Miguel Company <miguelcompany@eprosima.com>
Date: Thu, 6 Jul 2023 14:40:19 +0200
Subject: [PATCH] Explicitly register type object in
 ContentFilteredTopicExample (#3594)

Signed-off-by: Miguel Company <MiguelCompany@eprosima.com>
(cherry picked from commit c2b2d4de0c18354e9ea85a5122a74bfbce1e3a2f)
---
 .../ContentFilteredTopicExamplePublisher.cpp                | 6 ++++++
 .../ContentFilteredTopicExampleSubscriber.cpp               | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp b/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp
index 431d8764161..f1419c701e7 100644
--- a/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp
+++ b/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp
@@ -29,10 +29,16 @@
 #include <fastdds/dds/publisher/qos/DataWriterQos.hpp>
 #include <fastdds/dds/publisher/qos/PublisherQos.hpp>
 
+#include "HelloWorldTypeObject.h"
+
 using namespace eprosima::fastdds::dds;
 
 bool ContentFilteredTopicExamplePublisher::init()
 {
+    // The default filter class requires the TypeObject to be registered
+    // (see https://fast-dds.docs.eprosima.com/en/latest/fastdds/dds_layer/topic/contentFilteredTopic/createContentFilteredTopic.html)
+    registerHelloWorldTypes();
+
     // Initialize internal variables
     matched_ = 0;
 
diff --git a/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp b/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp
index d94053f5f83..1a91342c43c 100644
--- a/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp
+++ b/examples/C++/DDS/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp
@@ -27,11 +27,17 @@
 #include <fastdds/dds/subscriber/qos/DataReaderQos.hpp>
 #include <fastdds/dds/subscriber/SampleInfo.hpp>
 
+#include "HelloWorldTypeObject.h"
+
 using namespace eprosima::fastdds::dds;
 
 bool ContentFilteredTopicExampleSubscriber::init(
         bool custom_filter)
 {
+    // The default filter class requires the TypeObject to be registered
+    // (see https://fast-dds.docs.eprosima.com/en/latest/fastdds/dds_layer/topic/contentFilteredTopic/createContentFilteredTopic.html)
+    registerHelloWorldTypes();
+
     // Initialize internal variables
     matched_ = 0;