Infrastructure

From the first example in #8106, a McdbDocNotFoundException thrown by DocumentUtil.appendRev is being caught in a generic catch (Exception e) block in EventLog.getReport (line 289) and logged as a WARN. This was triggered from a simple getSystemMetadata request, and appears to happen whenever getSystemMetadata is given an unknown identifier. Since this is a normal and trivial occurrence, the McdbDocNotFoundException should be caught separately and logged only at a log DEBUG level (without the stacktrace, either).

[METACAT] [WARN] [2017-06-17 18:37:15] : Could not check docid for revision: doi:10.6067:XCV8WM1D1X_meta$v=1356819351482 [edu.ucsb.nceas.metacat.EventLog] edu.ucsb.nceas.metacat.McdbDocNotFoundException: the requested docid 'doi:10.6067:XCV8WM1D1X_meta$v=1356819351482' does not exist at edu.ucsb.nceas.metacat.util.DocumentUtil.appendRev(DocumentUtil.java:328) at edu.ucsb.nceas.metacat.EventLog.getReport(EventLog.java:288) at edu.ucsb.nceas.metacat.EventLog.isDeleted(EventLog.java:395) at edu.ucsb.nceas.metacat.dataone.D1NodeService.userHasPermission(D1NodeService.java:1211) at edu.ucsb.nceas.metacat.dataone.D1NodeService.isAuthorized(D1NodeService.java:1153) at edu.ucsb.nceas.metacat.dataone.D1NodeService.getSystemMetadata(D1NodeService.java:782) at edu.ucsb.nceas.metacat.restservice.v2.CNResourceHandler.getSystemMetadataObject(CNResourceHandler.java:644) at edu.ucsb.nceas.metacat.restservice.v2.CNResourceHandler.handle(CNResourceHandler.java:188) at edu.ucsb.nceas.metacat.restservice.D1RestServlet.doGet(D1RestServlet.java:76) at javax.servlet.http.HttpServlet.service(HttpServlet.java:620) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at