fixing(infra-messaging)

infrastructure/messaging/messaging-client/src/main/kotlin/at/mocode/infrastructure/messaging/client/MessagingError.kt

@@ -0,0 +1,68 @@
+package at.mocode.infrastructure.messaging.client
+
+/**
+ * Domain-specific error types for messaging operations.
+ * Follows the DDD guidelines for explicit error handling using the Result pattern.
+ */
+sealed class MessagingError(
+    val code: String,
+    override val message: String,
+    override val cause: Throwable? = null
+) : Exception(message, cause) {
+
+    /**
+     * Error when event publishing fails due to serialization issues.
+     */
+    data class SerializationError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_SERIALIZATION_ERROR", message, cause)
+
+    /**
+     * Error when event publishing fails due to connection issues.
+     */
+    data class ConnectionError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_CONNECTION_ERROR", message, cause)
+
+    /**
+     * Error when event publishing fails due to timeout.
+     */
+    data class TimeoutError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_TIMEOUT_ERROR", message, cause)
+
+    /**
+     * Error when event publishing fails due to authentication/authorization issues.
+     */
+    data class AuthenticationError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_AUTHENTICATION_ERROR", message, cause)
+
+    /**
+     * Error when event publishing fails due to topic configuration issues.
+     */
+    data class TopicConfigurationError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_TOPIC_CONFIGURATION_ERROR", message, cause)
+
+    /**
+     * Error when event consumption fails due to deserialization issues.
+     */
+    data class DeserializationError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_DESERIALIZATION_ERROR", message, cause)
+
+    /**
+     * Generic messaging error for unexpected failures.
+     */
+    data class UnexpectedError(
+        override val message: String,
+        override val cause: Throwable? = null
+    ) : MessagingError("MESSAGING_UNEXPECTED_ERROR", message, cause)
+}