Add default toString for InboundEvents (used in debug logging)

Author: jbarrez

modules/flowable-event-registry-spring/src/main/java/org/flowable/eventregistry/spring/jms/JmsMessageInboundEvent.java

@@ -81,4 +81,12 @@ protected String convertEventToString() {
             return message.toString();
         }
     }
+
+    @Override
+    public String toString() {
+        return "JmsMessageInboundEvent{" +
+                "message=" + message +
+                ", headers=" + headers +
+                '}';
+    }
 }

modules/flowable-event-registry-spring/src/main/java/org/flowable/eventregistry/spring/kafka/KafkaConsumerRecordInboundEvent.java

@@ -60,4 +60,12 @@ protected Map<String, Object> retrieveHeaders() {
 
         return headers;
     }
+
+    @Override
+    public String toString() {
+        return "KafkaConsumerRecordInboundEvent{" +
+                "consumerRecord=" + consumerRecord +
+                ", headers=" + headers +
+                '}';
+    }
 }

modules/flowable-event-registry-spring/src/main/java/org/flowable/eventregistry/spring/rabbit/RabbitInboundEvent.java

@@ -87,4 +87,13 @@ public Collection<String> getStringContentTypes() {
     public void setStringContentTypes(Collection<String> stringContentTypes) {
         this.stringContentTypes = stringContentTypes;
     }
+
+    @Override
+    public String toString() {
+        return "RabbitInboundEvent{" +
+                "message=" + message +
+                ", stringContentTypes=" + stringContentTypes +
+                ", headers=" + headers +
+                '}';
+    }
 }

modules/flowable-event-registry/src/main/java/org/flowable/eventregistry/impl/DefaultInboundEvent.java

@@ -48,4 +48,12 @@ public Object getBody() {
     public Map<String, Object> getHeaders() {
         return headers;
     }
+
+    @Override
+    public String toString() {
+        return "DefaultInboundEvent{" +
+                "rawEvent=" + rawEvent +
+                ", headers=" + headers +
+                '}';
+    }
 }