cloudevents#9 Encoders for MQTT

Author: sbcd90

Diff for: cloudevents-sdk-paho-mqtt/Cargo.toml

@@ -11,7 +11,7 @@ description = "CloudEvents official Rust SDK - Mqtt integration"
 [dependencies]
 cloudevents-sdk = { version = "0.3.0", path = ".." }
 lazy_static = "1.4.0"
-paho-mqtt = "0.8"
+paho-mqtt = "0.9.1"
 chrono = { version = "^0.4", features = ["serde"] }
 
 [dev-dependencies]

Diff for: cloudevents-sdk-paho-mqtt/src/lib.rs

@@ -1,5 +1,4 @@
-//! This library provides Mqtt protocol bindings for CloudEvents
-//! using the [paho.mqtt.rust](https://github.com/eclipse/paho.mqtt.rust) library.\\
+//! This library provides Mqtt protocol bindings for CloudEvents using the [paho.mqtt.rust](https://github.com/eclipse/paho.mqtt.rust) library.\\
 #[macro_use]
 mod headers;
 mod mqtt_consumer_record;

Diff for: cloudevents-sdk-paho-mqtt/src/mqtt_producer_record.rs

@@ -135,13 +135,15 @@ impl MessageBuilderExt for MessageBuilder {
 
         match version {
             MQTT_5 => {
-                self = self.properties(message_record.headers.clone());
+                self = self.properties(message_record.headers);
             }
             _ => (),
         }
 
-        if let Some(s) = message_record.payload.as_ref() {
-            self = self.payload(s.to_vec());
+        match message_record.payload {
+            Some(s) =>
+                self = self.payload(s),
+            None => ()
         }
 
         self