From c73b3e4d614a2cc63fe9d8c7dac2279393d26e30 Mon Sep 17 00:00:00 2001
From: "mergify[bot]" <37929162+mergify[bot]@users.noreply.github.com>
Date: Tue, 8 Aug 2023 10:40:56 +0200
Subject: [PATCH] Explicitly register type object in
 ContentFilteredTopicExample (#3594) (#3659)

Signed-off-by: Miguel Company <MiguelCompany@eprosima.com>
(cherry picked from commit c2b2d4de0c18354e9ea85a5122a74bfbce1e3a2f)

Co-authored-by: Miguel Company <miguelcompany@eprosima.com>
---
 .../ContentFilteredTopicExamplePublisher.cpp                | 6 ++++++
 .../ContentFilteredTopicExampleSubscriber.cpp               | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/examples/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp b/examples/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp
index 431d8764161..f1419c701e7 100644
--- a/examples/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExamplePublisher.cpp
+++ b/examples/cpp/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/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp b/examples/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp
index d94053f5f83..1a91342c43c 100644
--- a/examples/cpp/dds/ContentFilteredTopicExample/ContentFilteredTopicExampleSubscriber.cpp
+++ b/examples/cpp/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;