ALF-4106 AuditService REST API: Added 'dataTrigger' to 'RecordValue'

- Prevents RecordValue elements from activating unnecessarily
 - Without any entries, everything behaves as before i.e. 'RecordValue' triggers on data entries at the current path


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@22197 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/audit/AuditComponentImpl.java

@@ -651,9 +651,16 @@ public class AuditComponentImpl implements AuditComponent
         for (DataExtractorDefinition extractorDef : extractors)
         {
             DataExtractor extractor = extractorDef.getDataExtractor();
+            String triggerPath = extractorDef.getDataTrigger();
             String sourcePath = extractorDef.getDataSource();
             String targetPath = extractorDef.getDataTarget();
             
+            // Check if it is triggered
+            if (!values.containsKey(triggerPath))
+            {
+                continue;               // It is not triggered
+            }
+            
             // We observe the key, not the actual value
             if (!values.containsKey(sourcePath))
             {