Identify messages by their writer GUID and sequence number

Signed-off-by: tempate <[email protected]>
eProsima · Jun 21, 2024 · 59b39a9 · 59b39a9
1 parent cceffc6
commit 59b39a9
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Showing 3 changed files with 27 additions and 10 deletions.
diff --git a/ddsrecorder_participants/include/ddsrecorder_participants/recorder/message/SqlMessage.hpp b/ddsrecorder_participants/include/ddsrecorder_participants/recorder/message/SqlMessage.hpp
@@ -21,10 +21,12 @@
 #include <memory>
 #include <string>
 
+#include <fastdds/rtps/common/SequenceNumber.h>
 #include <fastrtps/types/DynamicType.h>
 
 #include <ddspipe_core/efficiency/payload/PayloadPool.hpp>
 #include <ddspipe_core/types/data/RtpsPayloadData.hpp>
+#include <ddspipe_core/types/dds/Guid.hpp>
 #include <ddspipe_core/types/dds/Payload.hpp>
 #include <ddspipe_core/types/topic/dds/DdsTopic.hpp>
 
@@ -66,6 +68,12 @@ struct SqlMessage : public BaseMessage
     void set_key(
             fastrtps::types::DynamicType_ptr dynamic_type);
 
+    // Writer GUID
+    ddspipe::core::types::Guid writer_guid;
+
+    // Sequence number
+    fastrtps::rtps::SequenceNumber_t sequence_number;
+
     // Hashed value identifying the instance
     ddspipe::core::types::InstanceHandle instance_handle;
 

diff --git a/ddsrecorder_participants/src/cpp/recorder/message/SqlMessage.cpp b/ddsrecorder_participants/src/cpp/recorder/message/SqlMessage.cpp
@@ -42,6 +42,8 @@ SqlMessage::SqlMessage(
     const bool log_publish_time,
     const std::string& key /* = "" */)
     : BaseMessage(data, payload_pool, topic, log_publish_time)
+    , writer_guid(data.sample_identity.writer_guid())
+    , sequence_number(data.sample_identity.sequence_number())
     , instance_handle(data.instanceHandle)
     , key(key)
 {

diff --git a/ddsrecorder_participants/src/cpp/recorder/sql/SqlWriter.cpp b/ddsrecorder_participants/src/cpp/recorder/sql/SqlWriter.cpp
@@ -123,14 +123,16 @@ void SqlWriter::open_new_file_nts_(
     const std::string create_messages_table{
     R"(
         CREATE TABLE IF NOT EXISTS Messages (
-            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            writer_guid TEXT NOT NULL,
+            sequence_number INTEGER NOT NULL,
             data BLOB NOT NULL,
             data_size INTEGER NOT NULL,
             topic TEXT NOT NULL,
             type TEXT NOT NULL,
             key TEXT NOT NULL,
             log_time DATETIME NOT NULL,
             publish_time DATETIME NOT NULL,
+            PRIMARY KEY(writer_guid, sequence_number),
             FOREIGN KEY(topic, type) REFERENCES Topics(name, type)
         );
     )"};
@@ -210,8 +212,8 @@ void SqlWriter::write_nts_(
 
     // Define the SQL statement
     const char* insert_statement = R"(
-        INSERT INTO Messages (data, data_size, topic, type, key, log_time, publish_time)
-        VALUES (?, ?, ?, ?, ?, ?, ?);
+        INSERT INTO Messages (writer_guid, sequence_number, data, data_size, topic, type, key, log_time, publish_time)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?);
     )";
 
     // Prepare the SQL statement
@@ -229,13 +231,18 @@ void SqlWriter::write_nts_(
     }
 
     // Bind the SqlMessage to the SQL statement
-    sqlite3_bind_blob(statement, 1, msg.get_data(), msg.get_data_size(), SQLITE_TRANSIENT);
-    sqlite3_bind_int64(statement, 2, msg.get_data_size());
-    sqlite3_bind_text(statement, 3, msg.topic.topic_name().c_str(), -1, SQLITE_TRANSIENT);
-    sqlite3_bind_text(statement, 4, msg.topic.type_name.c_str(), -1, SQLITE_TRANSIENT);
-    sqlite3_bind_text(statement, 5, msg.key.c_str(), -1, SQLITE_TRANSIENT);
-    sqlite3_bind_text(statement, 6, to_sql_timestamp(msg.log_time).c_str(), -1, SQLITE_TRANSIENT);
-    sqlite3_bind_text(statement, 7, to_sql_timestamp(msg.publish_time).c_str(), -1, SQLITE_TRANSIENT);
+    std::ostringstream writer_guid_ss;
+    writer_guid_ss << msg.writer_guid;
+
+    sqlite3_bind_text(statement, 1, writer_guid_ss.str().c_str(), -1, SQLITE_TRANSIENT);
+    sqlite3_bind_int64(statement, 2, msg.sequence_number.to64long());
+    sqlite3_bind_blob(statement, 3, msg.get_data(), msg.get_data_size(), SQLITE_TRANSIENT);
+    sqlite3_bind_int64(statement, 4, msg.get_data_size());
+    sqlite3_bind_text(statement, 5, msg.topic.topic_name().c_str(), -1, SQLITE_TRANSIENT);
+    sqlite3_bind_text(statement, 6, msg.topic.type_name.c_str(), -1, SQLITE_TRANSIENT);
+    sqlite3_bind_text(statement, 7, msg.key.c_str(), -1, SQLITE_TRANSIENT);
+    sqlite3_bind_text(statement, 8, to_sql_timestamp(msg.log_time).c_str(), -1, SQLITE_TRANSIENT);
+    sqlite3_bind_text(statement, 9, to_sql_timestamp(msg.publish_time).c_str(), -1, SQLITE_TRANSIENT);
 
     // Execute the SQL statement
     const auto step_ret = sqlite3_step(statement);