Modified the code to fix various pushPolicy issues
[policy/engine.git] / ONAP-PAP-REST / src / main / java / org / onap / policy / pap / xacml / rest / XACMLPapServlet.java
index b3ac236..85d79f7 100644 (file)
@@ -43,6 +43,7 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Properties;
+import java.util.Scanner;
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.CopyOnWriteArrayList;
@@ -53,7 +54,6 @@ import javax.persistence.PersistenceException;
 import javax.servlet.Servlet;
 import javax.servlet.ServletConfig;
 import javax.servlet.ServletException;
-import javax.servlet.ServletOutputStream;
 import javax.servlet.annotation.WebInitParam;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
@@ -305,9 +305,23 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
             }
                        policyDBDao.setPapEngine((PAPPolicyEngine) XACMLPapServlet.papEngine);
                if (Boolean.parseBoolean(XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_RUN_AUDIT_FLAG))){
+                       /*
+                        * Auditing the local File System groups to be in sync with the Database
+                        */
+                       
                        //get an AuditTransaction to lock out all other transactions
                        PolicyDBDaoTransaction auditTrans = policyDBDao.getNewAuditTransaction();
-                       policyDBDao.auditLocalDatabase(XACMLPapServlet.papEngine);
+                       
+                       LOGGER.info("PapServlet: calling auditLocalFileSystem for PDP group audit");
+                LOGGER.info("PapServlet: old group is " + papEngine.getDefaultGroup().toString());
+                       //get the current filesystem group and update from the database if needed
+                StdPDPGroup group = (StdPDPGroup) papEngine.getDefaultGroup();
+                StdPDPGroup updatedGroup = policyDBDao.auditLocalFileSystem(group);
+                if(updatedGroup!=null) {
+                       papEngine.updateGroup(updatedGroup);
+                }    
+                LOGGER.info("PapServlet:  updated group is " + papEngine.getDefaultGroup().toString());
+                
                        //release the transaction lock
                        auditTrans.close();
                }
@@ -338,11 +352,11 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
         initiateThread.start();
     }
 
-    private static void mapperWriteValue(ObjectMapper mapper,  ServletOutputStream out, Object value) {
+    private static void mapperWriteValue(ObjectMapper mapper,  HttpServletResponse response, Object value) {
         try {
-            mapper.writeValue(out, value);
+            mapper.writeValue(response.getOutputStream(), value);
         } catch (Exception e) {
-            LOGGER.debug(e);
+            LOGGER.error(e);
         }
     }
 
@@ -510,14 +524,19 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        PolicyLogger.info("requestID was provided in call to XACMLPapSrvlet (doPost)");
                }
                PolicyDBDaoTransaction pdpTransaction = null;
+               loggingContext.metricStarted();
                try {
                        im.startTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPost im startTransaction");
                } catch (AdministrativeStateException ae){
                        String message = "POST interface called for PAP " + papResourceName + " but it has an Administrative"
                                        + " state of " + im.getStateManager().getAdminState()
                                        + "\n Exception Message: " + ae.getMessage();
                        LOGGER.error(MessageCodes.ERROR_SYSTEM_ERROR + " " + message, ae);
-                       loggingContext.transactionEnded();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPost im startTransaction");
+                       loggingContext.transactionEnded();                      
                        PolicyLogger.audit("Transaction Failed - See Error.log");
                        setResponseError(response,HttpServletResponse.SC_INTERNAL_SERVER_ERROR, message);
                        return;
@@ -526,13 +545,18 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        + " of " + im.getStateManager().getStandbyStatus()
                                        + "\n Exception Message: " + se.getMessage();
                        LOGGER.error(MessageCodes.ERROR_SYSTEM_ERROR + " " + message, se);
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPost im startTransaction");
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Failed - See Error.log");
                        setResponseError(response,HttpServletResponse.SC_INTERNAL_SERVER_ERROR, message);
                        return;
                }
                try {
+                       loggingContext.metricStarted();
                        XACMLRest.dumpRequest(request);
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPost dumpRequest");
                        // since getParameter reads the content string, explicitly get the content before doing that.
                        // Simply getting the inputStream seems to protect it against being consumed by getParameter.
                        request.getInputStream();
@@ -552,7 +576,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                                return;
                                        }
                                }
+                               loggingContext.metricStarted();
                                doACPost(request, response, groupId, loggingContext);
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doPost doACPost");
                                loggingContext.transactionEnded();
                                PolicyLogger.audit("Transaction Ended Successfully");
                                im.endTransaction();
@@ -605,15 +632,18 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        }
                                } else {
                                        String message = "PDP is Unauthorized to Connect to PAP: "+ id;
-                                       PolicyLogger.error(MessageCodes.ERROR_PERMISSIONS + " " + message);
                                        loggingContext.transactionEnded();
+                                       PolicyLogger.error(MessageCodes.ERROR_PERMISSIONS + " " + message);
                                        setResponseError(response, HttpServletResponse.SC_UNAUTHORIZED, "PDP not Authorized to connect to this PAP. Please contact the PAP Admin for registration.");
                                        PolicyLogger.audit("Transaction Failed - See Error.log");
                                        im.endTransaction();
                                        return;
                                }
                                try{
+                                       loggingContext.metricStarted();
                                        pdpTransaction.commitTransaction();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doPost commitTransaction");
                                } catch(Exception e){
                                        PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XACMLPapServlet", "Could not commit transaction to put pdp in the database");
                                }
@@ -696,7 +726,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                    }
                        }
                        // tell the AC that something changed
+                       loggingContext.metricStarted();
                        notifyAC();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPost notifyAC");
                        loggingContext.transactionEnded();
                        auditLogger.info("Success");
                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -741,7 +774,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        PolicyLogger.info("requestID was provided in call to XACMLPapSrvlet (doGet)");
                }
                try {
+                       loggingContext.metricStarted();
                        XACMLRest.dumpRequest(request);
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doGet dumpRequest");
                        String pathInfo = request.getRequestURI();
                        LOGGER.info("path info: " + pathInfo);
                        if (pathInfo != null){
@@ -757,7 +793,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        }
                        //This im.startTransaction() covers all other Get transactions
                        try {
+                               loggingContext.metricStarted();
                                im.startTransaction();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doGet im startTransaction");
                        } catch (AdministrativeStateException ae){
                                String message = "GET interface called for PAP " + papResourceName + " but it has an Administrative"
                                                + " state of " + im.getStateManager().getAdminState()
@@ -784,7 +823,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        if (apiflag!=null) {
                                if(authorizeRequest(request)){
                                        APIRequestHandler apiRequestHandler = new APIRequestHandler();
-                                       apiRequestHandler.doGet(request,response, apiflag);
+                                       try{                            
+                                               loggingContext.metricStarted();
+                                           apiRequestHandler.doGet(request,response, apiflag);
+                                               loggingContext.metricEnded();
+                                               PolicyLogger.metrics("XACMLPapServlet doGet apiRequestHandler doGet");
+                                       }catch(IOException e){
+                                           LOGGER.error(e);
+                                       }
                                        loggingContext.transactionEnded();
                                        PolicyLogger.audit("Transaction Ended Successfully");
                                        im.endTransaction();
@@ -803,7 +849,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        String groupId = request.getParameter("groupId");
                        if (groupId != null) {
                                // this is from the Admin Console, so handle separately
-                               doACGet(request, response, groupId, loggingContext);
+                               try{
+                                       loggingContext.metricStarted();
+                                   doACGet(request, response, groupId, loggingContext);
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doGet doACGet");
+                               } catch(IOException e){
+                    LOGGER.error(e);
+                }
                                loggingContext.transactionEnded();
                                PolicyLogger.audit("Transaction Ended Successfully");
                                im.endTransaction();
@@ -828,7 +881,7 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        loggingContext.setServiceName("PAP.getGroups");
                                        Set<OnapPDPGroup> groups = papEngine.getOnapPDPGroups();
                                        // convert response object to JSON and include in the response
-                                       mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  groups);
+                                       mapperWriteValue(new ObjectMapper(), response,  groups);
                                        response.setHeader("content-type", "application/json");
                                        response.setStatus(HttpServletResponse.SC_OK);
                                        loggingContext.transactionEnded();
@@ -846,7 +899,12 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        }
                        loggingContext.setServiceName("PAP.getPolicy");
                        // Get the PDP's Group
-                       OnapPDPGroup group = XACMLPapServlet.papEngine.getPDPGroup((OnapPDP) pdp);
+                       OnapPDPGroup group = null;
+                       try {
+                           group = XACMLPapServlet.papEngine.getPDPGroup((OnapPDP) pdp);
+                       } catch (PAPException e) {
+                           LOGGER.error(e);
+                       }
                        if (group == null) {
                                String message = "No group associated with pdp " + pdp.getId();
                                LOGGER.warn(XACMLErrorConstants.ERROR_PERMISSIONS + message);
@@ -877,8 +935,12 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                im.endTransaction();
                                return;
                        }
-                       LOGGER.warn("PolicyDebugging: Policy Validity: " + policy.isValid() + "\n "
-                                       + "Policy Name : " + policy.getName() + "\n Policy URI: " + policy.getLocation().toString());
+                       try{
+                   LOGGER.warn("PolicyDebugging: Policy Validity: " + policy.isValid() + "\n "
+                           + "Policy Name : " + policy.getName() + "\n Policy URI: " + policy.getLocation().toString());
+                       } catch (PAPException| IOException e){
+                           LOGGER.error(e);
+                       }
                        try (InputStream is = new FileInputStream(((StdPDPGroup)group).getDirectory().toString()+File.separator+policyId); OutputStream os = response.getOutputStream()) {
                                // Send the policy back
                                IOUtils.copy(is, os);
@@ -894,7 +956,7 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                PolicyLogger.audit("Transaction Failed - See Error.log");
                                setResponseError(response,HttpServletResponse.SC_NOT_FOUND, message);
                        }
-               }  catch (PAPException | IOException e) {
+               }  catch (PAPException e) {
                        LOGGER.debug(e);
                        PolicyLogger.error(MessageCodes.ERROR_UNKNOWN, e, "XACMLPapServlet", " GET exception");
                        loggingContext.transactionEnded();
@@ -923,7 +985,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        PolicyLogger.info("requestID was provided in call to XACMLPapSrvlet (doPut)");
                }
                try {
+                       loggingContext.metricStarted();
                        im.startTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPut im startTransaction");
                } catch (AdministrativeStateException | StandbyStatusException e) {
                        String message = "PUT interface called for PAP " + papResourceName;
                        if (e instanceof AdministrativeStateException) {
@@ -944,14 +1009,16 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        return;
                }
 
+               loggingContext.metricStarted();
                XACMLRest.dumpRequest(request);
+               loggingContext.metricEnded();
+               PolicyLogger.metrics("XACMLPapServlet doPut dumpRequest");
                //need to check if request is from the API or Admin console
                String apiflag = request.getParameter("apiflag");
                //This would occur if a PolicyDBDao notification was received
                String policyDBDaoRequestUrl = request.getParameter("policydbdaourl");
                if(policyDBDaoRequestUrl != null){
                        String policyDBDaoRequestEntityId = request.getParameter("entityid");
-                       //String policyDBDaoRequestEntityType = request.getParameter("entitytype");
                        String policyDBDaoRequestEntityType = request.getParameter("entitytype");
                        String policyDBDaoRequestExtraData = request.getParameter("extradata");
                        if(policyDBDaoRequestEntityId == null || policyDBDaoRequestEntityType == null){
@@ -961,7 +1028,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                im.endTransaction();
                                return;
                        }
-                       policyDBDao.handleIncomingHttpNotification(policyDBDaoRequestUrl,policyDBDaoRequestEntityId,policyDBDaoRequestEntityType,policyDBDaoRequestExtraData,this);                     
+                       loggingContext.metricStarted();         
+                       policyDBDao.handleIncomingHttpNotification(policyDBDaoRequestUrl,policyDBDaoRequestEntityId,policyDBDaoRequestEntityType,policyDBDaoRequestExtraData,this);
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doPut handle incoming http notification");
                        response.setStatus(200);
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -975,7 +1045,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                if (importService != null) {
                        if(authorizeRequest(request)){
                                APIRequestHandler apiRequestHandler = new APIRequestHandler();
-                               apiRequestHandler.doPut(request, response, importService);
+                               try{
+                                       loggingContext.metricStarted(); 
+                                   apiRequestHandler.doPut(request, response, importService);
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doPut apiRequestHandler doPut");
+                               }catch(IOException e){
+                                   LOGGER.error(e);
+                               }
                                im.endTransaction();
                                return;
                        } else {
@@ -1026,7 +1103,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                im.endTransaction();
                                return;
                        }
+                       loggingContext.metricStarted();
                        renameTransaction.commitTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet goPut commitTransaction");
                        response.setStatus(HttpServletResponse.SC_OK);
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -1070,7 +1150,11 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        return;
                                }
                                if(apiflag.equalsIgnoreCase("addPolicyToGroup")){
-                                       updateGroupsFromAPI(request, response, groupId, loggingContext);
+                                   try{
+                                       updateGroupsFromAPI(request, response, groupId, loggingContext);
+                                   }catch(IOException e){
+                                       LOGGER.error(e);
+                                   }
                                        loggingContext.transactionEnded();
                                        PolicyLogger.audit("Transaction Ended Successfully");
                                        im.endTransaction();
@@ -1078,7 +1162,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                }
                        }
                        // this is from the Admin Console, so handle separately
-                       doACPut(request, response, groupId, loggingContext);
+                       try {
+                               loggingContext.metricEnded();
+                           doACPut(request, response, groupId, loggingContext);
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet goPut doACPut");
+                       } catch (IOException e) {
+                LOGGER.error(e);
+            }
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Ended Successfully");
                        im.endTransaction();
@@ -1090,7 +1181,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                if (apiflag != null && apiflag.equalsIgnoreCase("admin")){
                        // this request is from the Admin Console
                        SavePolicyHandler savePolicyHandler = SavePolicyHandler.getInstance();
-                       savePolicyHandler.doPolicyAPIPut(request, response);
+                       try{
+                               loggingContext.metricStarted();
+                           savePolicyHandler.doPolicyAPIPut(request, response);
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet goPut savePolicyHandler");
+                       } catch (IOException e) {
+                LOGGER.error(e);
+            }
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Ended Successfully");
                        im.endTransaction();
@@ -1099,7 +1197,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        // this request is from the Policy Creation API 
                        if(authorizeRequest(request)){
                                APIRequestHandler apiRequestHandler = new APIRequestHandler();
-                               apiRequestHandler.doPut(request, response, request.getHeader("ClientScope"));
+                               try{
+                                       loggingContext.metricStarted();
+                                   apiRequestHandler.doPut(request, response, request.getHeader("ClientScope"));
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet goPut apiRequestHandler doPut");
+                   } catch (IOException e) {
+                       LOGGER.error(e);
+                   }
                                loggingContext.transactionEnded();
                                PolicyLogger.audit("Transaction Ended Successfully");
                                im.endTransaction();
@@ -1140,7 +1245,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        PolicyLogger.info("requestID was provided in call to XACMLPapSrvlet (doDelete)");
                }
                try {
+                       loggingContext.metricStarted();
                        im.startTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doDelete im startTransaction");
                } catch (AdministrativeStateException ae){
                        String message = "DELETE interface called for PAP " + papResourceName + " but it has an Administrative"
                                        + " state of " + im.getStateManager().getAdminState()
@@ -1162,7 +1270,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        setResponseError(response,HttpServletResponse.SC_INTERNAL_SERVER_ERROR, message);
                        return;
                }
+               loggingContext.metricStarted();
                XACMLRest.dumpRequest(request);
+               loggingContext.metricEnded();
+               PolicyLogger.metrics("XACMLPapServlet doDelete dumpRequest");
                String groupId = request.getParameter("groupId");
                String apiflag = request.getParameter("apiflag");
                if (groupId != null) {
@@ -1178,17 +1289,27 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                }
                                APIRequestHandler apiRequestHandler = new APIRequestHandler();
                                try {
+                                       loggingContext.metricStarted();
                                        apiRequestHandler.doDelete(request, response, loggingContext, apiflag);
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doDelete apiRequestHandler doDelete");
                                } catch (Exception e) {
                                        LOGGER.error("Exception Occured"+e);
                                }
                                if(apiRequestHandler.getNewGroup()!=null){
-                                       groupChanged(apiRequestHandler.getNewGroup());
+                                       groupChanged(apiRequestHandler.getNewGroup(), loggingContext);
                                }
                                return;
                        }
                        // this is from the Admin Console, so handle separately
-                       doACDelete(request, response, groupId, loggingContext);
+                       try{
+                               loggingContext.metricStarted();
+                           doACDelete(request, response, groupId, loggingContext);
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doDelete doACDelete");
+                       } catch (IOException e) {
+                LOGGER.error(e);
+            }
                        loggingContext.transactionEnded();
                        PolicyLogger.audit("Transaction Ended Successfully");
                        im.endTransaction();
@@ -1277,52 +1398,38 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
         */
        public void updateGroupsFromAPI(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws IOException {
                PolicyDBDaoTransaction acPutTransaction = policyDBDao.getNewTransaction();
+               PolicyLogger.audit("PolicyDBDaoTransaction started for updateGroupsFromAPI");
                try {
                        // for PUT operations the group may or may not need to exist before the operation can be done
                        StdPDPGroup group = (StdPDPGroup) papEngine.getGroup(groupId);
+                       
                        // get the request input stream content into a String
                        String json = null;
                        java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
                        scanner.useDelimiter("\\A");
                        json =  scanner.hasNext() ? scanner.next() : "";
                        scanner.close();
-                       PolicyLogger.info("JSON request from PolicyEngine API: " + json);
+
+                       PolicyLogger.info("pushPolicy request from API: " + json);
+                       
                        // convert Object sent as JSON into local object
                        StdPDPPolicy policy = PolicyUtils.jsonStringToObject(json, StdPDPPolicy.class);
-                       Set<PDPPolicy> policies = new HashSet<>();
-                       if(policy!=null){
-                               policies.add(policy);
-                       }
+                       
                        //Get the current policies from the Group and Add the new one
                        Set<PDPPolicy> currentPoliciesInGroup = new HashSet<>();
                        currentPoliciesInGroup = group.getPolicies();
-                       //If the selected policy is in the group we must remove it because the name is default
-                       Iterator<PDPPolicy> policyIterator = policies.iterator();
-                       LOGGER.debug("policyIterator....." + policies);
-                       while (policyIterator.hasNext()) {
-                               PDPPolicy selPolicy = policyIterator.next();
-                               for (PDPPolicy existingPolicy : currentPoliciesInGroup) {
-                                       if (existingPolicy.getId().equals(selPolicy.getId())) {
-                                               group.removePolicyFromGroup(existingPolicy);
-                                               LOGGER.debug("Removing policy: " + existingPolicy);
+                       //If the selected policy is in the group we must remove the old version of it
+                       LOGGER.info("Removing old version of the policy");
+                       for(PDPPolicy existingPolicy : currentPoliciesInGroup) {
+                               if (existingPolicy.getName().equals(policy.getName())){
+                                       if (!existingPolicy.getId().equals(policy.getId())) {
+                                               group.removePolicy(existingPolicy);
+                                               LOGGER.info("Removing policy: " + existingPolicy);
                                                break;
                                        }
                                }
                        }
-                       //Update the PDP Group after removing old version of policy
-                       Set<PDPPolicy> updatedPoliciesInGroup = new HashSet<>();
-                       updatedPoliciesInGroup = group.getPolicies();
-                       //need to remove the policy with default name from group
-                       for (PDPPolicy updatedPolicy : currentPoliciesInGroup) {
-                               if (updatedPolicy.getName().equalsIgnoreCase("default")) {
-                                       group.removePolicyFromGroup(updatedPolicy);
-                                       break;
-                               }
-                       }
-                       if(updatedPoliciesInGroup!=null){
-                               policies.addAll(updatedPoliciesInGroup);
-                       }
-                       group.setPolicies(policies);
+                       
                        // Assume that this is an update of an existing PDP Group
                        loggingContext.setServiceName("PolicyEngineAPI:PAP.updateGroup");
                        try{
@@ -1332,7 +1439,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                                +"group="+group.getId());
                                throw new PAPException(e.getMessage()); 
                        }
+                       
+                       LOGGER.info("Calling updatGroup() with new group");
                        papEngine.updateGroup(group);
+                       
                        String policyId = "empty";
                        if(policy!=null){
                                policyId = policy.getId();
@@ -1341,15 +1451,22 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        response.addHeader("operation", "push");
                        response.addHeader("policyId", policyId);
                        response.addHeader("groupId", groupId);
-                       if (LOGGER.isDebugEnabled()) {          
-                               LOGGER.debug("Group '" + group.getId() + "' updated");
-                       }
+                       
+                       LOGGER.info("Group '" + group.getId() + "' updated");
+                       
+                       loggingContext.metricStarted();
                        acPutTransaction.commitTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet updateGroupsFromAPI commitTransaction");
+                       loggingContext.metricStarted();
                        notifyAC();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet updateGroupsFromAPI notifyAC");
+
                        // Group changed, which might include changing the policies     
-                       groupChanged(group);
+                       groupChanged(group, loggingContext);
                        loggingContext.transactionEnded();
-                       auditLogger.info("Success");
+                       LOGGER.info("Success");
 
                        if (policy != null && ((policy.getId().contains("Config_MS_")) || (policy.getId().contains("BRMS_Param")))) {
                                PushPolicyHandler pushPolicyHandler = PushPolicyHandler.getInstance();
@@ -1393,18 +1510,26 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        if (groupName != null && groupDescription != null) {
                                // Args:              group=<groupId> groupName=<name> groupDescription=<description>            <= create a new group
                                loggingContext.setServiceName("AC:PAP.createGroup");
-                               String unescapedName = URLDecoder.decode(groupName, "UTF-8");
-                               String unescapedDescription = URLDecoder.decode(groupDescription, "UTF-8");
+                               String unescapedName = null;
+                               String unescapedDescription = null;
+                               try{
+                                   unescapedName = URLDecoder.decode(groupName, "UTF-8");
+                                   unescapedDescription = URLDecoder.decode(groupDescription, "UTF-8");
+                               } catch (UnsupportedEncodingException e) {
+                                   LOGGER.error(e);
+                               }
                                PolicyDBDaoTransaction newGroupTransaction = policyDBDao.getNewTransaction();
                                try {                                   
                                        newGroupTransaction.createGroup(PolicyDBDao.createNewPDPGroupId(unescapedName), unescapedName, unescapedDescription,"XACMLPapServlet.doACPost");
                                        papEngine.newGroup(unescapedName, unescapedDescription);
+                                       loggingContext.metricStarted();
                                        newGroupTransaction.commitTransaction();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doACPost commitTransaction");
                                } catch (Exception e) {
                                        newGroupTransaction.rollbackTransaction();
                                        PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XACMLPapServlet", " Unable to create new group");
                                        loggingContext.transactionEnded();
-       
                                        PolicyLogger.audit("Transaction Failed - See Error.log");
                                        setResponseError(response,HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to create new group '" + groupId + "'");
                                        return;
@@ -1414,7 +1539,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        LOGGER.debug("New Group '" + groupId + "' created");
                                }
                                // tell the Admin Consoles there is a change
+                               loggingContext.metricStarted();
                                notifyAC();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPost notifyAC");
                                // new group by definition has no PDPs, so no need to notify them of changes
                                loggingContext.transactionEnded();
                                PolicyLogger.audit("Transaction Failed - See Error.log");
@@ -1423,7 +1551,12 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                return;
                        }
                        // for all remaining POST operations the group must exist before the operation can be done
-                       OnapPDPGroup group = papEngine.getGroup(groupId);
+                       OnapPDPGroup group = null;
+                       try{
+                           group = papEngine.getGroup(groupId);
+                       } catch (PAPException e){
+                           LOGGER.error(e);
+                       }
                        if (group == null) {
                                String message = "Unknown groupId '" + groupId + "'";
                                PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " " + message);
@@ -1439,54 +1572,29 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                }
                                return;
                        }
-                       // determine the operation needed based on the parameters in the request
+                       
+                       // If the request contains a policyId then we know we are pushing the policy to PDP
                        if (request.getParameter("policyId") != null) {
-                               //      Args:        group=<groupId> policy=<policyId>          <= copy file
-                               // copy a policy from the request contents into a file in the group's directory on this machine
+                               
                                if(apiflag!=null){
                                        loggingContext.setServiceName("PolicyEngineAPI:PAP.postPolicy");
                                } else {
                                        loggingContext.setServiceName("AC:PAP.postPolicy");
                                }
+                               
                                String policyId = request.getParameter("policyId");
                                PolicyDBDaoTransaction addPolicyToGroupTransaction = policyDBDao.getNewTransaction();
+                               StdPDPGroup updatedGroup = null;
                                try {
-                                       InputStream is = null;
-                                       File temp= null;
-                                       if (apiflag != null){
-                                               // get the request content into a String if the request is from API 
-                                               String json = null;
-                                               // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
-                                               java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
-                                               scanner.useDelimiter("\\A");
-                                               json =  scanner.hasNext() ? scanner.next() : "";
-                                               scanner.close();
-                                               LOGGER.info("JSON request from API: " + json);
-                                               // convert Object sent as JSON into local object
-                                               ObjectMapper mapper = new ObjectMapper();
-                                               Object objectFromJSON = mapper.readValue(json, StdPAPPolicy.class);
-                                               StdPAPPolicy policy = (StdPAPPolicy) objectFromJSON;
-                                               temp = new File(policy.getLocation());
-                                               is = new FileInputStream(temp);
-                                       } else {
-                                               is = request.getInputStream();
-                                       }
-                                       addPolicyToGroupTransaction.addPolicyToGroup(group.getId(), policyId,"XACMLPapServlet.doACPost");
-                       if (apiflag != null){
-                           ((StdPDPGroup) group).copyPolicyToFile(policyId,"API", is);
-                       } else {
-                               String name = null;
-                               if (policyId.endsWith(".xml")) {
-                                       name = policyId.replace(".xml", "");
-                                       name = name.substring(0, name.lastIndexOf("."));
-                                               }
-                               ((StdPDPGroup) group).copyPolicyToFile(policyId, name, is);
-                       }
-                       if(is!=null && temp!=null){
-                               is.close();
-                                               temp.delete();
-                       }
+                                       //Copying the policy to the file system and updating groups in database
+                                       LOGGER.info("PapServlet: calling PolicyDBDao.addPolicyToGroup()");
+                                       updatedGroup = addPolicyToGroupTransaction.addPolicyToGroup(group.getId(), policyId,"XACMLPapServlet.doACPost");
+                                       loggingContext.metricStarted();
                                        addPolicyToGroupTransaction.commitTransaction();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doACPost commitTransaction");
+                                       LOGGER.info("PapServlet: addPolicyToGroup() succeeded, transaction was committed");
+                                       
                                } catch (Exception e) {
                                        addPolicyToGroupTransaction.rollbackTransaction();
                                        String message = "Policy '" + policyId + "' not copied to group '" + groupId +"': " + e;
@@ -1502,17 +1610,99 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        }
                                        return;
                                }
+                               
+                               // Get new transaction to perform updateGroup()
+                               PolicyDBDaoTransaction acPutTransaction = policyDBDao.getNewTransaction();
+                               try {
+                                       /*
+                                        * If request comes from the API we need to run the PolicyDBDao updateGroup() to notify other paps of the change.
+                                        * The GUI does this from the POLICY-SDK-APP code.
+                                        */
+                                       if(apiflag != null){
+
+                                               // get the request content into a String
+                                               String json = null;
+                                               // read the inputStream into a buffer
+                                               java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
+                                               scanner.useDelimiter("\\A");
+                                               json =  scanner.hasNext() ? scanner.next() : "";
+                                               scanner.close();
+                                               LOGGER.info("PushPolicy API request: " + json);
+                                               
+                                               // convert Object sent as JSON into local object
+                                               ObjectMapper mapper = new ObjectMapper();
+                                               Object objectFromJSON = mapper.readValue(json, StdPDPPolicy.class);
+                                               StdPDPPolicy policy = (StdPDPPolicy) objectFromJSON;
+                                               
+                                               // Assume that this is an update of an existing PDP Group
+                                               loggingContext.setServiceName("PolicyEngineAPI:PAP.updateGroup");
+                                               try{
+                                                       acPutTransaction.updateGroup(updatedGroup, "XACMLPapServlet.doACPut");
+                                               } catch(Exception e){
+                                                       PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XACMLPapServlet", " Error occurred when notifying PAPs of a group change: "
+                                                                       + e);
+                                                       throw new PAPException(e.getMessage()); 
+                                               }
+                                               
+                                               LOGGER.info("Calling updatGroup() with new group");
+                                               papEngine.updateGroup(updatedGroup);
+                                               
+                                               LOGGER.info("Group '" + updatedGroup.getId() + "' updated");
+                                               
+                                               // Commit transaction to send notification to other PAPs
+                                               loggingContext.metricStarted();
+                                               acPutTransaction.commitTransaction();
+                                               loggingContext.metricEnded();
+                                               PolicyLogger.metrics("XACMLPapServlet updateGroupsFromAPI commitTransaction");
+                                               loggingContext.metricStarted();
+                                               
+                                               notifyAC();
+                                               loggingContext.metricEnded();
+                                               PolicyLogger.metrics("XACMLPapServlet updateGroupsFromAPI notifyAC");
+                                               
+                                               // Group changed to send notification to PDPs, which might include changing the policies        
+                                               groupChanged(updatedGroup,loggingContext);
+                                               loggingContext.transactionEnded();
+                                               LOGGER.info("Success");
+
+                                               if (policy != null && ((policy.getName().contains("Config_MS_")) || (policy.getId().contains("BRMS_Param")))) {
+                                                       PushPolicyHandler pushPolicyHandler = PushPolicyHandler.getInstance();
+                                                       if (pushPolicyHandler.preSafetyCheck(policy, configHome)) {
+                                                               LOGGER.debug("Precheck Successful.");
+                                                       }
+                                               }
+                                               
+                                               //delete temporary policy file from the bin directory
+                                               Files.deleteIfExists(Paths.get(policy.getId()));
+                                               
+                                       }
+                               } catch (Exception e) {
+                                       acPutTransaction.rollbackTransaction();
+                                       PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XACMLPapServlet", " API PUT exception");
+                                       loggingContext.transactionEnded();
+                                       PolicyLogger.audit("Transaction Failed - See Error.log");
+                                       String message = XACMLErrorConstants.ERROR_PROCESS_FLOW + "Exception occurred when updating the group from API.";
+                                       LOGGER.error(message);
+                                       setResponseError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
+                                       response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                                       response.addHeader("error","addGroupError");
+                                       response.addHeader("message", message);
+                                       return;
+                               }
+                               
+                               
+                               
                                // policy file copied ok and the Group was updated on the PDP
                                response.setStatus(HttpServletResponse.SC_NO_CONTENT);
                                response.addHeader("operation", "push");
                                response.addHeader("policyId", policyId);
                                response.addHeader("groupId", groupId);
-                               if (LOGGER.isDebugEnabled()) {
-                                       LOGGER.debug("policy '" + policyId + "' copied to directory for group '" + groupId + "'");
-                               }
+                               
+                               LOGGER.info("policy '" + policyId + "' copied to directory for group '" + groupId + "'");
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
-                               PolicyLogger.audit("Transaction Ended Successfully");
+                               LOGGER.info("Transaction Ended Successfully");
+                               
                                return;
                        } else if (request.getParameter("default") != null) {
                                // Args:       group=<groupId> default=true               <= make default
@@ -1523,13 +1713,15 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                PolicyDBDaoTransaction setDefaultGroupTransaction = policyDBDao.getNewTransaction();
                                try {
                                        setDefaultGroupTransaction.changeDefaultGroup(group, "XACMLPapServlet.doACPost");
-                                       papEngine.SetDefaultGroup(group);
+                                       papEngine.setDefaultGroup(group);
+                                       loggingContext.metricStarted();
                                        setDefaultGroupTransaction.commitTransaction();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doACPost commitTransaction");
                                } catch (Exception e) {
                                        setDefaultGroupTransaction.rollbackTransaction();
                                        PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "XACMLPapServlet", " Unable to set group");
                                        loggingContext.transactionEnded();
-       
                                        PolicyLogger.audit("Transaction Failed - See Error.log");
                                        setResponseError(response,HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to set group '" + groupId + "' to default");
                                        return;
@@ -1541,11 +1733,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                // Notify the Admin Consoles that something changed
                                // For now the AC cannot handle anything more detailed than the whole set of PDPGroups, so just notify on that
                                //TODO - Future: FIGURE OUT WHAT LEVEL TO NOTIFY: 2 groups or entire set - currently notify AC to update whole configuration of all groups
+                               loggingContext.metricStarted();
                                notifyAC();
                                // This does not affect any PDPs in the existing groups, so no need to notify them of this change
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPost notifyAC");
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
-                               PolicyLogger.audit("Transaction Ended Successfully");
+                               LOGGER.info("Transaction Ended Successfully");
                                return;
                        } else if (request.getParameter("pdpId") != null) {
                                doACPostTransaction = policyDBDao.getNewTransaction();
@@ -1573,10 +1768,16 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                ((StdPDPGroup)group).resetStatus();
                                // Notify the Admin Consoles that something changed
                                // For now the AC cannot handle anything more detailed than the whole set of PDPGroups, so just notify on that
+                               loggingContext.metricStarted();
                                notifyAC();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPost notifyAC");
                                // Need to notify the PDP that it's config may have changed
-                               pdpChanged(pdp);
+                               pdpChanged(pdp, loggingContext);
+                               loggingContext.metricStarted();
                                doACPostTransaction.commitTransaction();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPost commitTransaction");
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -1601,7 +1802,7 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
         * @throws ServletException
         * @throws IOException
         */
-       private void doACGet(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws ServletException, IOException {
+       private void doACGet(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws IOException {
                try {
                        String parameterDefault = request.getParameter("default");
                        String pdpId = request.getParameter("pdpId");
@@ -1613,13 +1814,17 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        loggingContext.setServiceName("AC:PAP.getDefaultGroup");
                                        OnapPDPGroup group = papEngine.getDefaultGroup();
                                        // convert response object to JSON and include in the response
-                                       mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  group);
+                                       mapperWriteValue(new ObjectMapper(), response,  group);
                                        if (LOGGER.isDebugEnabled()) {
                                                LOGGER.debug("GET Default group req from '" + request.getRequestURL() + "'");
                                        }
                                        response.setStatus(HttpServletResponse.SC_OK);
                                        response.setHeader("content-type", "application/json");
-                                       response.getOutputStream().close();
+                                       try{
+                        response.getOutputStream().close();
+                    } catch (IOException e){
+                        LOGGER.error(e);
+                    }
                                        loggingContext.transactionEnded();
                                        auditLogger.info("Success");
                                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -1629,15 +1834,24 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        if (pdpGroup == null) {
                                                // Request is for the (unspecified) group containing a given PDP
                                                loggingContext.setServiceName("AC:PAP.getPDP");
-                                               OnapPDP pdp = papEngine.getPDP(pdpId);
+                                               OnapPDP pdp = null;
+                                               try{
+                                                   pdp = papEngine.getPDP(pdpId);
+                                               }catch(PAPException e){
+                                                   LOGGER.error(e);
+                                               }
                                                // convert response object to JSON and include in the response
-                                               mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  pdp);
+                                               mapperWriteValue(new ObjectMapper(), response,  pdp);
                                                if (LOGGER.isDebugEnabled()) {
                                                        LOGGER.debug("GET pdp '" + pdpId + "' req from '" + request.getRequestURL() + "'");
                                                }
                                                response.setStatus(HttpServletResponse.SC_OK);
                                                response.setHeader("content-type", "application/json");
-                                               response.getOutputStream().close();
+                                               try{
+                            response.getOutputStream().close();
+                        } catch (IOException e){
+                            LOGGER.error(e);
+                        }
                                                loggingContext.transactionEnded();
                                                auditLogger.info("Success");
                                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -1645,16 +1859,25 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        } else {
                                                // Request is for the group containing a given PDP
                                                loggingContext.setServiceName("AC:PAP.getGroupForPDP");
-                                               OnapPDP pdp = papEngine.getPDP(pdpId);
-                                               OnapPDPGroup group = papEngine.getPDPGroup((OnapPDP) pdp);
+                                               OnapPDPGroup group =null;
+                                               try{
+                                                   OnapPDP pdp = papEngine.getPDP(pdpId);
+                               group = papEngine.getPDPGroup((OnapPDP) pdp);
+                                               }catch(PAPException e){
+                                                   LOGGER.error(e);
+                                               }
                                                // convert response object to JSON and include in the response
-                                               mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  group);
+                                               mapperWriteValue(new ObjectMapper(), response,  group);
                                                if (LOGGER.isDebugEnabled()) {
                                                        LOGGER.debug("GET PDP '" + pdpId + "' Group req from '" + request.getRequestURL() + "'");
                                                }
                                                response.setStatus(HttpServletResponse.SC_OK);
                                                response.setHeader("content-type", "application/json");
-                                               response.getOutputStream().close();
+                                               try{
+                               response.getOutputStream().close();
+                           } catch (IOException e){
+                               LOGGER.error(e);
+                           }
                                                loggingContext.transactionEnded();
                                                auditLogger.info("Success");
                                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -1665,13 +1888,17 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        loggingContext.setServiceName("AC:PAP.getAllGroups");
                                        Set<OnapPDPGroup> groups = papEngine.getOnapPDPGroups();
                                        // convert response object to JSON and include in the response
-                                       mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  groups);
+                                       mapperWriteValue(new ObjectMapper(), response,  groups);
                                        if (LOGGER.isDebugEnabled()) {
                                                LOGGER.debug("GET All groups req");
                                        }
                                        response.setStatus(HttpServletResponse.SC_OK);
                                        response.setHeader("content-type", "application/json");
-                                       response.getOutputStream().close();
+                                       try{
+                           response.getOutputStream().close();
+                       } catch (IOException e){
+                           LOGGER.error(e);
+                       }
                                        loggingContext.transactionEnded();
                                        auditLogger.info("Success");
                                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -1679,12 +1906,16 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                }
                        }
                        // for all other GET operations the group must exist before the operation can be done
-                       OnapPDPGroup group = papEngine.getGroup(groupId);
+                       OnapPDPGroup group = null;
+                       try{
+                           group = papEngine.getGroup(groupId);
+                       } catch(PAPException e){
+                           LOGGER.error(e);
+                       }
                        if (group == null) {
                                String message = "Unknown groupId '" + groupId + "'";
                                PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " " + message);
                                loggingContext.transactionEnded();
-
                                PolicyLogger.audit("Transaction Failed - See Error.log");
                                setResponseError(response,HttpServletResponse.SC_NOT_FOUND, message);
                                return;
@@ -1703,13 +1934,17 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                // No other parameters, so return the identified Group
                                loggingContext.setServiceName("AC:PAP.getGroup");
                                // convert response object to JSON and include in the response
-                               mapperWriteValue(new ObjectMapper(), response.getOutputStream(),  group);
+                               mapperWriteValue(new ObjectMapper(), response,  group);
                                if (LOGGER.isDebugEnabled()) {
                                        LOGGER.debug("GET group '" + group.getId() + "' req from '" + request.getRequestURL() + "'");
                                }
                                response.setStatus(HttpServletResponse.SC_OK);
                                response.setHeader("content-type", "application/json");
-                               response.getOutputStream().close();
+                               try{
+                                   response.getOutputStream().close();
+                               } catch (IOException e){
+                                   LOGGER.error(e);
+                               }
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -1744,7 +1979,7 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
         * @throws ServletException
         * @throws IOException
         */
-       private void doACPut(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws ServletException, IOException {
+       private void doACPut(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws IOException {
                PolicyDBDaoTransaction acPutTransaction = policyDBDao.getNewTransaction();
                try {
                        // for PUT operations the group may or may not need to exist before the operation can be done
@@ -1780,10 +2015,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                // get the request content into a String
                                String json = null;
                                // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
-                               java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
-                               scanner.useDelimiter("\\A");
-                               json =  scanner.hasNext() ? scanner.next() : "";
-                               scanner.close();
+                               try{
+                                   Scanner scanner = new Scanner(request.getInputStream());
+                                   scanner.useDelimiter("\\A");
+                       json =  scanner.hasNext() ? scanner.next() : "";
+                       scanner.close();
+                               }catch(IOException e){
+                                   LOGGER.error(e);
+                               }
                                LOGGER.info("JSON request from AC: " + json);
                                // convert Object sent as JSON into local object
                                ObjectMapper mapper = new ObjectMapper();
@@ -1800,7 +2039,13 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                }
                                StdPDP pdp = (StdPDP) objectFromJSON;
                                if(pdp != null){
-                                       if (papEngine.getPDP(pdpId) == null) {
+                                   OnapPDP oPDP = null;
+                                   try{
+                                       oPDP = papEngine.getPDP(pdpId);
+                                   }catch (PAPException e){
+                                       LOGGER.error(e);
+                                   }
+                                       if (oPDP == null) {
                                                // this is a request to create a new PDP object
                                                try{
                                                        acPutTransaction.addPdpToGroup(pdp.getId(), group.getId(), pdp.getName(), 
@@ -1810,7 +2055,11 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                                                        +"pdp="+ (pdp.getId()) +",to group="+group.getId());
                                                        throw new PAPException(e.getMessage());
                                                }
-                                               papEngine.newPDP(pdp.getId(), group, pdp.getName(), pdp.getDescription(), pdp.getJmxPort());
+                                               try{
+                                                   papEngine.newPDP(pdp.getId(), group, pdp.getName(), pdp.getDescription(), pdp.getJmxPort());
+                                               }catch(PAPException e){
+                                                   LOGGER.error(e);
+                                               }
                                        } else {
                                                try{
                                                        acPutTransaction.updatePdp(pdp, "XACMLPapServlet.doACPut");
@@ -1820,7 +2069,11 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                                        throw new PAPException(e.getMessage());
                                                }
                                                // this is a request to update the pdp
-                                               papEngine.updatePDP(pdp);
+                                               try{
+                                                   papEngine.updatePDP(pdp);
+                                               }catch(PAPException e){
+                            LOGGER.error(e);
+                        }
                                        }
                                        response.setStatus(HttpServletResponse.SC_NO_CONTENT);
                                        if (LOGGER.isDebugEnabled()) {
@@ -1829,10 +2082,16 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        // adjust the group's state including the new PDP
                                        ((StdPDPGroup)group).resetStatus();
                                        // tell the Admin Consoles there is a change
+                                       loggingContext.metricStarted();
                                        notifyAC();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doACPut notifyAC");
                                        // this might affect the PDP, so notify it of the change
-                                       pdpChanged(pdp);
+                                       pdpChanged(pdp, loggingContext);
+                                       loggingContext.metricStarted();
                                        acPutTransaction.commitTransaction();
+                                       loggingContext.metricEnded();
+                                       PolicyLogger.metrics("XACMLPapServlet doACPut commitTransaction");
                                        loggingContext.transactionEnded();
                                        auditLogger.info("Success");
                                        PolicyLogger.audit("Transaction Ended Successfully");
@@ -1861,10 +2120,14 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                // get the request content into a String
                                String json = null;
                                // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
-                               java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
-                               scanner.useDelimiter("\\A");
-                               json =  scanner.hasNext() ? scanner.next() : "";
-                               scanner.close();
+                try{
+                    Scanner scanner = new Scanner(request.getInputStream());
+                    scanner.useDelimiter("\\A");
+                    json =  scanner.hasNext() ? scanner.next() : "";
+                    scanner.close();
+                }catch(IOException e){
+                    LOGGER.error(e);
+                }
                                LOGGER.info("JSON request from AC: " + json);
                                // convert Object sent as JSON into local object
                                ObjectMapper mapper = new ObjectMapper();
@@ -1896,18 +2159,26 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                if (pushPolicyHandler.preSafetyCheck(updatedGroup, configHome)) {               
                                        LOGGER.debug("Precheck Successful.");
                                }
-                               
-                papEngine.updateGroup((StdPDPGroup)objectFromJSON);
-
+                               try{
+                                   papEngine.updateGroup((StdPDPGroup)objectFromJSON);
+                               }catch(PAPException e){
+                                   LOGGER.error(e);
+                               }
                                response.setStatus(HttpServletResponse.SC_NO_CONTENT);
                                if (LOGGER.isDebugEnabled()) {
                                        LOGGER.debug("Group '" + group.getId() + "' updated");
                                }
+                               loggingContext.metricStarted();
                                acPutTransaction.commitTransaction();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut commitTransaction");
                                // tell the Admin Consoles there is a change
+                               loggingContext.metricStarted();
                                notifyAC();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut notifyAC");
                                // Group changed, which might include changing the policies
-                               groupChanged(group);
+                               groupChanged(group, loggingContext);
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -1934,7 +2205,7 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
         * @throws ServletException
         * @throws IOException
         */
-       private void doACDelete(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws ServletException, IOException {
+       private void doACDelete(HttpServletRequest request, HttpServletResponse response, String groupId, ONAPLoggingContext loggingContext) throws IOException {
                //This code is to allow deletes to propagate to the database since delete is not implemented
                String isDeleteNotify = request.getParameter("isDeleteNotify");
                if(isDeleteNotify != null){
@@ -1955,7 +2226,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                                + "\nfailure with the following exception: " + e);
                                return;
                        }
+                       loggingContext.metricStarted();
                        deleteTransaction.commitTransaction();
+                       loggingContext.metricEnded();
+                       PolicyLogger.metrics("XACMLPapServlet doACPut commitTransaction");
                        response.setStatus(HttpServletResponse.SC_OK);
                        return;
                }
@@ -1990,14 +2264,24 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                } catch(Exception e){
                                        throw new PAPException(e);
                                }
-                               papEngine.removePDP((OnapPDP) pdp);
+                               try{
+                       papEngine.removePDP((OnapPDP) pdp);
+                               }catch(PAPException e){
+                    LOGGER.error(e);
+                }
                                // adjust the status of the group, which may have changed when we removed this PDP
                                ((StdPDPGroup)group).resetStatus();
                                response.setStatus(HttpServletResponse.SC_NO_CONTENT);
+                               loggingContext.metricStarted();
                                notifyAC();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut notifyAC");
                                // update the PDP and tell it that it has NO Policies (which prevents it from serving PEP Requests)
-                               pdpChanged(pdp);
+                               pdpChanged(pdp, loggingContext);
+                               loggingContext.metricStarted();
                                removePdpOrGroupTransaction.commitTransaction();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut commitTransaction");
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -2015,7 +2299,11 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                String moveToGroupId = request.getParameter("movePDPsToGroupId");
                                OnapPDPGroup moveToGroup = null;
                                if (moveToGroupId != null) {
-                                       moveToGroup = papEngine.getGroup(moveToGroupId);
+                                   try{
+                                       moveToGroup = papEngine.getGroup(moveToGroupId);
+                                   }catch(PAPException e){
+                           LOGGER.error(e);
+                       }
                                }
                                // get list of PDPs in the group being deleted so we can notify them that they got changed
                                Set<OnapPDP> movedPDPs = new HashSet<>();
@@ -2027,14 +2315,24 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        PolicyLogger.error(MessageCodes.ERROR_UNKNOWN, e, "XACMLPapServlet", " Failed to delete PDP Group. Exception");
                                        throw new PAPException(e.getMessage());
                                }
-                               papEngine.removeGroup(group, moveToGroup);
+                               try{
+                                   papEngine.removeGroup(group, moveToGroup);
+                               }catch(PAPException e){
+                    LOGGER.error(e);
+                }
                                response.setStatus(HttpServletResponse.SC_NO_CONTENT);
+                               loggingContext.metricStarted();
                                notifyAC();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut notifyAC");
                                // notify any PDPs in the removed set that their config may have changed
                                for (OnapPDP pdp : movedPDPs) {
-                                       pdpChanged(pdp);
+                                       pdpChanged(pdp, loggingContext);
                                }
+                               loggingContext.metricStarted();
                                removePdpOrGroupTransaction.commitTransaction();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet doACPut commitTransaction");
                                loggingContext.transactionEnded();
                                auditLogger.info("Success");
                                PolicyLogger.audit("Transaction Ended Successfully");
@@ -2264,7 +2562,21 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        groupChanged(group);
                }
        }
-
+       
+       public void changed(ONAPLoggingContext loggingContext) {
+               // all PDPs in all groups need to be updated/sync'd
+               Set<OnapPDPGroup> groups;
+               try {
+                       groups = papEngine.getOnapPDPGroups();
+               } catch (PAPException e) {
+                       PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, e, "XACMLPapServlet", " getPDPGroups failed");
+                       throw new IllegalAccessError(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "Unable to get Groups: " + e);
+               }
+               for (OnapPDPGroup group : groups) {
+                       groupChanged(group, loggingContext);
+               }
+       }
+       
        @Override
        public void groupChanged(OnapPDPGroup group) {
                // all PDPs within one group need to be updated/sync'd
@@ -2273,8 +2585,15 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                }
        }
 
+       public void groupChanged(OnapPDPGroup group, ONAPLoggingContext loggingContext) {
+               // all PDPs within one group need to be updated/sync'd
+               for (OnapPDP pdp : group.getOnapPdps()) {
+                       pdpChanged(pdp, loggingContext);
+               }
+       }
+
        @Override
-       public void pdpChanged(OnapPDP pdp) {
+        public void pdpChanged(OnapPDP pdp) {
                // kick off a thread to do an event notification for each PDP.
                // This needs to be on a separate thread so that PDPs that do not respond (down, non-existent, etc)
                // do not block the PSP response to the AC, which would freeze the GUI until all PDPs sequentially respond or time-out.
@@ -2283,20 +2602,50 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                        t.start();
                }
        }
+       
+        public void pdpChanged(OnapPDP pdp, ONAPLoggingContext loggingContext) {
+               // kick off a thread to do an event notification for each PDP.
+               // This needs to be on a separate thread so that PDPs that do not respond (down, non-existent, etc)
+               // do not block the PSP response to the AC, which would freeze the GUI until all PDPs sequentially respond or time-out.
+               Thread t = new Thread(new UpdatePDPThread(pdp, loggingContext));
+               if(CheckPDP.validateID(pdp.getId())){
+                       t.start();
+               }
+       }
 
        private class UpdatePDPThread implements Runnable {
                private OnapPDP pdp;
                private String requestId;
+               private ONAPLoggingContext loggingContext;
 
                public UpdatePDPThread(OnapPDP pdp) {
                        this.pdp = pdp;
                }
 
+               public UpdatePDPThread(OnapPDP pdp, ONAPLoggingContext loggingContext) {
+                       this.pdp = pdp;
+                       if (!(loggingContext == null)) {
+                               if (!(loggingContext.getRequestID() == null) || (loggingContext.getRequestID() == "")) {
+                                       this.requestId = loggingContext.getRequestID();
+                               }
+                       }
+                       this.loggingContext = loggingContext;
+               }
+
                public void run() {
                        // send the current configuration to one PDP
                        HttpURLConnection connection = null;
                        // get a new logging context for the thread
-                       ONAPLoggingContext loggingContext = new ONAPLoggingContext(baseLoggingContext);
+                       try {
+                               if (this.loggingContext.equals(null)) {
+                                    loggingContext = new ONAPLoggingContext(baseLoggingContext);
+                               } 
+                       } catch (Exception e) {
+                           PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, e, "XACMLPapServlet", " Failed to send property file to " + pdp.getId());
+                           // Since this is a server-side error, it probably does not reflect a problem on the client,
+                           // so do not change the PDP status.
+                           return;
+               }
                        try {
                                loggingContext.setServiceName("PAP:PDP.putConfig");
                                // If a requestId was provided, use it, otherwise generate one; post to loggingContext to be used later when calling PDP
@@ -2358,7 +2707,10 @@ public class XACMLPapServlet extends HttpServlet implements StdItemSetChangeList
                                        return;
                                }
                                // Do the connect
+                               loggingContext.metricStarted();
                                connection.connect();
+                               loggingContext.metricEnded();
+                               PolicyLogger.metrics("XACMLPapServlet UpdatePDPThread connection connect");
                                if (connection.getResponseCode() == 204) {
                                        LOGGER.info("Success. We are configured correctly.");
                                        loggingContext.transactionEnded();