eProsima · rsanchez15 · Sep 6, 2023 · Aug 18, 2023 · Sep 4, 2023 · Sep 5, 2023
diff --git a/docs/code/StatisticsBackendTests.cpp b/docs/code/StatisticsBackendTests.cpp
@@ -566,6 +566,17 @@ void get_type_example()
     }
 }
 
+void get_status_example()
+{
+    {
+        EntityId entity_id;
+        //CONF-GET-STATUS-EXAMPLE
+        EntityStatus status = StatisticsBackend::get_status(entity_id);
+        //!--
+        static_cast<void>(status);
+    }
+}
+
 void set_alias_example()
 {
     {

diff --git a/docs/code/datareader_info_example.json b/docs/code/datareader_info_example.json
@@ -4,6 +4,7 @@
     "name": "datareader_name",
     "alias": "datareader_alias",
     "alive": false,
+    "status": 0,
     "guid": "01.0f.22.cd.59.64.04.00.05.00.00.00|00.00.01.04",
     "qos":
     {

diff --git a/docs/code/datawriter_info_example.json b/docs/code/datawriter_info_example.json
@@ -4,6 +4,7 @@
     "name": "datawriter_name",
     "alias": "datawriter_alias",
     "alive": true,
+    "status": 0,
     "guid": "01.0f.22.cd.59.64.04.00.02.00.00.00|00.00.01.03",
     "qos":
     {

diff --git a/docs/code/domain_info_example.json b/docs/code/domain_info_example.json
@@ -3,5 +3,6 @@
     "kind": "domain",
     "name": "0",
     "alias": "domain_alias",
-    "alive": true
+    "alive": true,
+    "status": 0
 }
diff --git a/docs/code/graph_example.json b/docs/code/graph_example.json
@@ -6,20 +6,23 @@
             "name": "example_host",
             "alias": "example_host_alias",
             "alive": true,
+            "status": 0,
             "users":
             [
                 {
                     "entity_id": "2",
                     "name": "example_user",
                     "alias": "example_user_alias",
                     "alive": true,
+                    "status": 0,
                     "processes":
                     [
                         {
                             "entity_id": "3",
                             "name": "example_process_1",
                             "alias": "example_process_1_alias",
                             "alive": true,
+                            "status": 0,
                             "pid": "9564",
                             "participants":
                             [
@@ -31,6 +34,7 @@
                             "name": "example_process_2",
                             "alias": "example_process_2_alias",
                             "alive": true,
+                            "status": 0,
                             "pid": "9565",
                             "participants":
                             [
@@ -49,6 +53,7 @@
             "name": "127.0.0.1:7412",
             "alias": "localhost_1",
             "alive": true,
+            "status": 0,
             "datareaders":
             [
             ],
@@ -62,6 +67,7 @@
             "name": "127.0.0.1:7414",
             "alias": "localhost_2",
             "alive": true,
+            "status": 0,
             "datareaders":
             [
                 "10"
@@ -78,13 +84,15 @@
             "name": "0",
             "alias": "domain_0_alias",
             "alive": true,
+            "status": 0,
             "participants":
             [
                 {
                     "entity_id": "4",
                     "name": "participant_1",
                     "alias": "participant_1_alias",
                     "alive": true,
+                    "status": 0,
                     "guid": "01.0f.22.cd.59.64.04.00.02.00.00.00|00.00.01.c1",
                     "process": "3",
                     "datareaders":
@@ -97,6 +105,7 @@
                             "name": "datawriter_1",
                             "alias": "datawriter_1_alias",
                             "alive": true,
+                            "status": 0,
                             "guid": "01.0f.22.cd.59.64.04.00.02.00.00.00|00.00.01.03",
                             "topic": "5",
                             "locators":
@@ -111,6 +120,7 @@
                     "name": "participant_2",
                     "alias": "participant_2_alias",
                     "alive": false,
+                    "status": 0,
                     "guid": "01.0f.22.cd.59.64.04.00.05.00.00.00|00.00.01.c1",
                     "process": "8",
                     "datareaders":
@@ -120,6 +130,7 @@
                             "name": "datareader_1",
                             "alias": "datareader_1_alias",
                             "alive": false,
+                            "status": 0,
                             "guid": "01.0f.22.cd.59.64.04.00.05.00.00.00|00.00.01.04",
                             "topic": "5",
                             "locators":
@@ -140,6 +151,7 @@
                     "name": "example_topic",
                     "alias": "example_topic_alias",
                     "alive": true,
+                    "status": 0,
                     "data_type": "example_data_type",
                     "datareaders":
                     [

diff --git a/docs/code/host_info_example.json b/docs/code/host_info_example.json
@@ -3,5 +3,6 @@
     "kind": "host",
     "name": "host_name",
     "alias": "host_alias",
-    "alive": true
+    "alive": true,
+    "status": 0
 }
diff --git a/docs/code/participant_info_example.json b/docs/code/participant_info_example.json
@@ -4,6 +4,7 @@
     "name": "participant_name",
     "alias": "participant_alias",
     "alive": true,
+    "status": 0,
     "guid": "01.0f.22.cd.59.64.04.00.05.00.00.00|00.00.01.c1",
     "qos": {
         "available_builtin_endpoints": 3135,

diff --git a/docs/code/process_info_example.json b/docs/code/process_info_example.json
@@ -4,5 +4,6 @@
     "name": "process_name",
     "alias": "process_alias",
     "alive": true,
+    "status": 0,
     "pid": "9564"
 }
diff --git a/docs/code/topic_info_example.json b/docs/code/topic_info_example.json
@@ -4,5 +4,6 @@
     "name": "topic_name",
     "alias": "topic_alias",
     "alive": true,
+    "status": 0,
     "data_type": "example_data_type"
 }
diff --git a/docs/code/user_info_example.json b/docs/code/user_info_example.json
@@ -3,5 +3,6 @@
     "kind": "user",
     "name": "user_name",
     "alias": "user_alias",
-    "alive": true
+    "alive": true,
+    "status": 0
 }
diff --git a/docs/rst/api-reference/types/entitystatus.rst b/docs/rst/api-reference/types/entitystatus.rst
@@ -0,0 +1,10 @@
+
+.. _api_types_entitystatus:
+
+.. rst-class:: api-ref
+
+EntityStatus
+------------
+
+.. doxygenenum:: eprosima::statistics_backend::EntityStatus
+    :project: fastdds_statistics_backend
diff --git a/docs/rst/api-reference/types/types_index.rst b/docs/rst/api-reference/types/types_index.rst
@@ -11,6 +11,7 @@ Types
     /rst/api-reference/types/domainid
     /rst/api-reference/types/entityid
     /rst/api-reference/types/entitykind
+    /rst/api-reference/types/entitystatus
     /rst/api-reference/types/graph
     /rst/api-reference/types/info
     /rst/api-reference/types/statistickind

diff --git a/docs/rst/exports/alias.include b/docs/rst/exports/alias.include
@@ -15,6 +15,7 @@
 .. |reset-api| replace:: :cpp:func:`reset()<eprosima::statistics_backend::StatisticsBackend::reset>`
 .. |set_domain_listener-api| replace:: :cpp:func:`set_domain_listener()<eprosima::statistics_backend::StatisticsBackend::set_domain_listener>`
 .. |get_type-api| replace:: :cpp:func:`get_type()<eprosima::statistics_backend::StatisticsBackend::get_type>`
+.. |get_status-api| replace:: :cpp:func:`get_status()<eprosima::statistics_backend::StatisticsBackend::get_status>`
 .. |set_alias-api| replace:: :cpp:func:`set_alias()<eprosima::statistics_backend::StatisticsBackend::set_alias>`
 .. |clear_statistics_data-api| replace:: :cpp:func:`clear_statistics_data()<eprosima::statistics_backend::StatisticsBackend::clear_statistics_data>`
 .. |clear_inactive_entities-api| replace:: :cpp:func:`clear_inactive_entities()<eprosima::statistics_backend::StatisticsBackend::clear_inactive_entities>`
@@ -82,6 +83,11 @@
 .. |DATAREADER-api| replace:: :cpp:enumerator:`DATAREADER<eprosima::statistics_backend::EntityKind::DATAREADER>`
 .. |LOCATOR-api| replace:: :cpp:enumerator:`LOCATOR<eprosima::statistics_backend::EntityKind::LOCATOR>`
 
+.. |EntityStatus-api| replace:: :cpp:type:`EntityStatus<eprosima::statistics_backend::EntityStatus>`
+.. |OK-api| replace:: :cpp:enumerator:`OK<eprosima::statistics_backend::EntityStatus::OK>`
+.. |WARNING-api| replace:: :cpp:enumerator:`WARNING<eprosima::statistics_backend::EntityStatus::WARNING>`
+.. |ERROR-api| replace:: :cpp:enumerator:`ERROR<eprosima::statistics_backend::EntityStatus::ERROR>`
+
 .. |BadParameter-api| replace:: :cpp:type:`BadParameter<eprosima::statistics_backend::BadParameter>`
 .. |Error-api| replace:: :cpp:type:`Error<eprosima::statistics_backend::Error>`
 .. |PreconditionNotMet-api| replace:: :cpp:type:`PreconditionNotMet<eprosima::statistics_backend::PreconditionNotMet>`
diff --git a/docs/rst/notes/forthcoming_version.rst b/docs/rst/notes/forthcoming_version.rst
@@ -0,0 +1,12 @@
+.. add orphan tag when new info added to this file
+
+.. :orphan:
+
+###################
+Forthcoming Version
+###################
+
+Next release will include the following **API extensions**:
+
+* `StatisticsBackend::get_status` returns the entity status of a given id.
+* Added `status` attribute for entities.
diff --git a/docs/rst/notes/notes.rst b/docs/rst/notes/notes.rst
@@ -4,6 +4,9 @@
 Release Notes
 #############
 
+.. TODO uncomment when there are forthcoming notes
+.. include:: forthcoming_version.rst
+
 Version 0.11.0
 ##############
 

diff --git a/docs/rst/spelling_wordlist.txt b/docs/rst/spelling_wordlist.txt
@@ -18,6 +18,7 @@ metatraffic
 monitorization
 monitorizations
 namespace
+Ok
 ostream
 OStream
 preprocessed

diff --git a/docs/rst/statistics_backend/get_status.rst b/docs/rst/statistics_backend/get_status.rst
@@ -0,0 +1,16 @@
+.. include:: ../exports/alias.include
+
+.. _statistics_backend_get_status:
+
+Get entity status
+-----------------
+
+It is also possible to retrieve the |EntityStatus-api| of an entity given its |EntityId-api|:
+
+.. literalinclude:: /code/StatisticsBackendTests.cpp
+    :language: c++
+    :start-after: //CONF-GET-STATUS-EXAMPLE
+    :end-before: //!
+    :dedent: 8
+
+|get_status-api| throws |BadParameter-api| if there is no entity with the given ID.
diff --git a/docs/rst/statistics_backend/statistics_backend.rst b/docs/rst/statistics_backend/statistics_backend.rst
@@ -25,6 +25,7 @@ contain a set of callbacks that the application implements.
     /rst/statistics_backend/get_info
     /rst/statistics_backend/get_entities
     /rst/statistics_backend/get_data
+    /rst/statistics_backend/get_status
     /rst/statistics_backend/get_type
     /rst/statistics_backend/set_alias
     /rst/statistics_backend/is_active

diff --git a/docs/rst/types/entity_status.rst b/docs/rst/types/entity_status.rst
@@ -0,0 +1,15 @@
+.. include:: ../exports/alias.include
+
+.. _types_entity_status:
+
+EntityStatus
+============
+
+The *eProsima Fast DDS Statistics Backend* keeps track of the entities status.
+The following list shows the possible status values along with their corresponding descriptions.
+
+- |OK-api|: The entity is functioning optimally and there are no issues to report.
+- |WARNING-api|: The entity is operating with some warnings or minor issues.
+  Although it's still functional, some attention may be required.
+- |ERROR-api|: The entity has encountered critical errors and its normal operation is disrupted.
+  Immediate action is necessary to resolve the problem.
diff --git a/docs/rst/types/types_index.rst b/docs/rst/types/types_index.rst
@@ -11,5 +11,6 @@ Types
     /rst/types/statistic_kind
     /rst/types/entity_kind
     /rst/types/entity_id
+    /rst/types/entity_status
     /rst/types/json_tags
     /rst/types/database_dumps
diff --git a/include/fastdds_statistics_backend/StatisticsBackend.hpp b/include/fastdds_statistics_backend/StatisticsBackend.hpp
@@ -252,6 +252,16 @@ class FASTDDS_STATISTICS_BACKEND_DllAPI StatisticsBackend
     static EntityKind get_type(
             EntityId entity_id);
 
+    /**
+     * @brief Returns the entity status of a given id.
+     *
+     * @param entity_id The ID of the entity whose status is requested.
+     * @throws eprosima::statistics_backend::BadParameter if there is no entity with the given ID.
+     * @return EntityStatus of \c entity_id.
+     */
+    static EntityStatus get_status(
+            EntityId entity_id);
+
     /**
      * @brief Get the meta information of a given entity.
      *

diff --git a/include/fastdds_statistics_backend/types/JSONTags.h b/include/fastdds_statistics_backend/types/JSONTags.h
@@ -89,6 +89,8 @@ constexpr const char* LOCATOR_ENTITY_TAG            = "locator";
 constexpr const char* ID_INFO_TAG                   = "id";
 //! Key tag for the EntityKind of an entity
 constexpr const char* KIND_INFO_TAG                 = "kind";
+//! Key tag for the EntityStatus of an entity
+constexpr const char* STATUS_INFO_TAG                 = "status";
 //! Key tag for name of an entity
 constexpr const char* NAME_INFO_TAG                 = "name";
 //! Key tag for alias of an entity

diff --git a/include/fastdds_statistics_backend/types/types.hpp b/include/fastdds_statistics_backend/types/types.hpp
@@ -140,6 +140,21 @@ enum class EntityKind
     LOCATOR,
 };
 
+/**
+ * Indicates the Status of an Entity in Statistics Backend structure
+ */
+enum class EntityStatus
+{
+    /// Ok entity status
+    OK,
+
+    /// Warning entity status
+    WARNING,
+
+    /// Error entity status
+    ERROR,
+};
+
 /**
  * Indicates the Type of Data stored by the Backend
  *

diff --git a/src/cpp/StatisticsBackend.cpp b/src/cpp/StatisticsBackend.cpp
@@ -492,6 +492,12 @@ EntityKind StatisticsBackend::get_type(
     return StatisticsBackendData::get_instance()->database_->get_entity_kind(entity_id);
 }
 
+EntityStatus StatisticsBackend::get_status(
+        EntityId entity_id)
+{
+    return StatisticsBackendData::get_instance()->database_->get_entity_status(entity_id);
+}
+
 Info StatisticsBackend::get_info(
         EntityId entity_id)
 {
@@ -506,6 +512,7 @@ Info StatisticsBackend::get_info(
     info[ALIAS_INFO_TAG] = entity->alias;
     info[ALIVE_INFO_TAG] = entity->active;
     info[METATRAFFIC_INFO_TAG] = entity->metatraffic;
+    info[STATUS_INFO_TAG] = entity->status;
 
     switch (entity->kind)
     {