added Custom Handlers

Author: singhabhi1999

srv/src/main/java/com/sap/cap/incident_management/handler/ProcessorServiceHandler.java

@@ -0,0 +1,57 @@
+package com.sap.cap.incident_management.handler;
+
+import java.util.List;
+import java.util.Locale;
+import java.util.logging.Level;
+import com.sap.cds.services.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import com.sap.cds.services.cds.CqnService;
+import com.sap.cds.services.handler.EventHandler;
+import com.sap.cds.services.handler.annotations.*;
+import com.sap.cds.services.handler.annotations.ServiceName;
+
+import cds.gen.processorservice.Incidents;
+import cds.gen.processorservice.Urgency;
+import cds.gen.processorservice.ProcessorService_;
+import cds.gen.processorservice.Incidents_;
+
+@Component
+@ServiceName(ProcessorService_.CDS_NAME)  
+public class ProcessorServiceHandler implements EventHandler {
+
+/*
+ * Change the urgency of an incident to "high" if the title contains the word "urgent"
+ */
+	private static final Logger logger = LoggerFactory.getLogger(ProcessorServiceHandler.class);
+	@Before(event = CqnService.EVENT_CREATE)  
+	public void ensureHighUrgencyForIncidentsWithUrgentInTitle(List<Incidents> incidents) {  
+		for (Incidents incident : incidents) { 
+            System.out.println(incident.getTitle());
+			if (incident.getTitle().toLowerCase(Locale.ENGLISH).contains("urgent") &&
+            incident.getUrgencyCode() == null || !incident.getUrgencyCode().equals("H")) {  
+                incident.setUrgencyCode("H");  
+				logger.info("Adjusted Urgency for incident '{}' to 'HIGH'.", incident.getTitle());  
+			}  
+
+		}  
+	}
+/*
+ * Handler to avoid updating a "closed" incident
+ */
+    @Before(event = CqnService.EVENT_UPDATE)  
+	public void onUpdate(Incidents incident) { 
+        
+        if(incident.getStatusCode().equals("C")){
+            throw new ServiceException(ErrorStatuses.CONFLICT, "Can't modify a closed incident");
+        }
+          
+	}
+
+
+    
+    
+	
+}