[cuebot] Refactor MonitoringEventBuilder to Spring-managed bean

Move MonitoringEventBuilder instantiation from inline setter creation to proper Spring dependency injection via applicationContext configuration.

Changes:
- Wire monitoringEventBuilder bean to dispatchSupport, jobManagerSupport, frameCompleteHandler, and hostReportHandler in applicationContext-service.xml
- Simplify setKafkaEventPublisher() setters to just assign the field
- Add setMonitoringEventBuilder() setters for Spring injection
- Remove try-catch blocks that silently swallowed exceptions in Prometheus metrics and Kafka event publishing (per review feedback)

This follows Spring DI best practices where MonitoringEventBuilder is a shared singleton managed by the container rather than being manually instantiated in each class.

Author: ramonfigueiredo

cuebot/src/main/java/com/imageworks/spcue/dispatcher/DispatchSupportService.java

@@ -694,10 +694,11 @@ public KafkaEventPublisher getKafkaEventPublisher() {
     }
 
     public void setKafkaEventPublisher(KafkaEventPublisher kafkaEventPublisher) {
-        if (kafkaEventPublisher != null) {
-            this.kafkaEventPublisher = kafkaEventPublisher;
-            this.monitoringEventBuilder = new MonitoringEventBuilder(kafkaEventPublisher);
-        }
+        this.kafkaEventPublisher = kafkaEventPublisher;
+    }
+
+    public void setMonitoringEventBuilder(MonitoringEventBuilder monitoringEventBuilder) {
+        this.monitoringEventBuilder = monitoringEventBuilder;
     }
 
     /**

cuebot/src/main/java/com/imageworks/spcue/dispatcher/FrameCompleteHandler.java

@@ -765,10 +765,11 @@ public KafkaEventPublisher getKafkaEventPublisher() {
     }
 
     public void setKafkaEventPublisher(KafkaEventPublisher kafkaEventPublisher) {
-        if (kafkaEventPublisher != null) {
-            this.kafkaEventPublisher = kafkaEventPublisher;
-            this.monitoringEventBuilder = new MonitoringEventBuilder(kafkaEventPublisher);
-        }
+        this.kafkaEventPublisher = kafkaEventPublisher;
+    }
+
+    public void setMonitoringEventBuilder(MonitoringEventBuilder monitoringEventBuilder) {
+        this.monitoringEventBuilder = monitoringEventBuilder;
     }
 
     public PrometheusMetricsCollector getPrometheusMetrics() {

cuebot/src/main/java/com/imageworks/spcue/dispatcher/HostReportHandler.java

@@ -1118,10 +1118,11 @@ public KafkaEventPublisher getKafkaEventPublisher() {
     }
 
     public void setKafkaEventPublisher(KafkaEventPublisher kafkaEventPublisher) {
-        if (kafkaEventPublisher != null) {
-            this.kafkaEventPublisher = kafkaEventPublisher;
-            this.monitoringEventBuilder = new MonitoringEventBuilder(kafkaEventPublisher);
-        }
+        this.kafkaEventPublisher = kafkaEventPublisher;
+    }
+
+    public void setMonitoringEventBuilder(MonitoringEventBuilder monitoringEventBuilder) {
+        this.monitoringEventBuilder = monitoringEventBuilder;
     }
 
     /**

cuebot/src/main/java/com/imageworks/spcue/service/JobManagerSupport.java

@@ -659,9 +659,10 @@ public KafkaEventPublisher getKafkaEventPublisher() {
     }
 
     public void setKafkaEventPublisher(KafkaEventPublisher kafkaEventPublisher) {
-        if (kafkaEventPublisher != null) {
-            this.kafkaEventPublisher = kafkaEventPublisher;
-            this.monitoringEventBuilder = new MonitoringEventBuilder(kafkaEventPublisher);
-        }
+        this.kafkaEventPublisher = kafkaEventPublisher;
+    }
+
+    public void setMonitoringEventBuilder(MonitoringEventBuilder monitoringEventBuilder) {
+        this.monitoringEventBuilder = monitoringEventBuilder;
     }
 }

cuebot/src/main/resources/conf/spring/applicationContext-service.xml

@@ -196,6 +196,7 @@
     <property name="bookingManager" ref="bookingManager" />
     <property name="bookingDao" ref="bookingDao" />
     <property name="kafkaEventPublisher" ref="kafkaEventPublisher" />
+    <property name="monitoringEventBuilder" ref="monitoringEventBuilder" />
   </bean>
 
   <bean id="filterManager" class="com.imageworks.spcue.service.FilterManagerService">
@@ -252,6 +253,7 @@
     <property name="prometheusMetrics" ref="prometheusMetricsCollector" />
     <property name="showDao" ref="showDao" />
     <property name="kafkaEventPublisher" ref="kafkaEventPublisher" />
+    <property name="monitoringEventBuilder" ref="monitoringEventBuilder" />
   </bean>
 
   <bean id="jobLauncher" class="com.imageworks.spcue.service.JobLauncher">
@@ -385,6 +387,7 @@
     <property name="showDao" ref="showDao" />
     <property name="kafkaEventPublisher" ref="kafkaEventPublisher" />
     <property name="prometheusMetrics" ref="prometheusMetricsCollector" />
+    <property name="monitoringEventBuilder" ref="monitoringEventBuilder" />
   </bean>
 
   <bean id="hostReportHandler" class="com.imageworks.spcue.dispatcher.HostReportHandler" destroy-method="shutdown">
@@ -401,6 +404,7 @@
     <property name="layerDao" ref="layerDao" />
     <property name="killQueue" ref="killQueue"/>
     <property name="kafkaEventPublisher" ref="kafkaEventPublisher" />
+    <property name="monitoringEventBuilder" ref="monitoringEventBuilder" />
   </bean>
 
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