Improved: Strip data to maximum column length for initialRequest and (#526)

initialReferrer (OFBIZ-12672)

Analogous to the existing limitation of the "initialUserAgent" to 250
characters, installation of a limitation of 2000 characters for
initialRequest and initialReferrer, so as not to exit with
"MysqlDataTruncation: Data truncation: Data too long for column
'INITIAL_REFERRER' at row 1" in the case of very long requests.
diff --git a/framework/webapp/src/main/java/org/apache/ofbiz/webapp/stats/VisitHandler.java b/framework/webapp/src/main/java/org/apache/ofbiz/webapp/stats/VisitHandler.java
index 5df4bfd..4109ade 100644
--- a/framework/webapp/src/main/java/org/apache/ofbiz/webapp/stats/VisitHandler.java
+++ b/framework/webapp/src/main/java/org/apache/ofbiz/webapp/stats/VisitHandler.java
@@ -150,8 +150,14 @@
                             visit.set("fromDate", new Timestamp(session.getCreationTime()));
 
                             visit.set("initialLocale", initialLocale);
-                            visit.set("initialRequest", initialRequest);
-                            visit.set("initialReferrer", initialReferrer);
+                            if (initialRequest != null) {
+                                visit.set("initialRequest", initialRequest.length() > 2000 ? initialRequest.substring(0, 1999)
+                                        : initialRequest);
+                            }
+                            if (initialReferrer != null) {
+                                visit.set("initialReferrer", initialReferrer.length() > 2000 ? initialReferrer.substring(0, 1999)
+                                        : initialReferrer);
+                            }
                             if (initialUserAgent != null) {
                                 visit.set("initialUserAgent", initialUserAgent.length() > 250 ? initialUserAgent.substring(0, 250)
                                         : initialUserAgent);