rules/ccvnp-rule.drl

   1 package org.onap.holmes.ccvpn;
   2
   3 dialect "java"
   4
   5 import org.onap.holmes.common.api.stat.VesAlarm;
   6 import org.onap.holmes.common.api.stat.AlarmAdditionalField;
   7 import org.onap.holmes.common.aai.AaiQuery4Ccvpn;
   8 import org.onap.holmes.common.exception.CorrelationException;
   9 import org.onap.holmes.common.dmaap.entity.PolicyMsg;
  10 import org.onap.holmes.common.dmaap.DmaapService;
  11 import org.onap.holmes.common.utils.DroolsLog;
  12 import org.onap.holmes.common.dropwizard.ioc.utils.ServiceLocatorHolder;
  13
  14 import com.alibaba.fastjson.JSONArray;
  15 import com.alibaba.fastjson.JSONObject;
  16
  17 import java.util.List;
  18 import java.util.Map;
  19 import java.util.ArrayList;
  20 import java.util.HashMap;
  21 import java.util.UUID;
  22
  23 function String getAdditionalField(VesAlarm a, String field) {
  24         List<AlarmAdditionalField> fields = a.getAlarmAdditionalInformation();
  25         for (AlarmAdditionalField f : fields) {
  26                 if (f.getName().equals(field)) {
  27                         return f.getValue();
  28                 }
  29         }
  30         return null;
  31 }
  32
  33 function String getLogicLink(VesAlarm alarm) {
  34         AaiQuery4Ccvpn aai = AaiQuery4Ccvpn.newInstance();
  35         return aai.getLogicLink(
  36                 getAdditionalField(alarm, "networkId"),
  37                 getAdditionalField(alarm, "node"),
  38                 getAdditionalField(alarm, "tp-id"),
  39                 getAdditionalField(alarm, "oper-status")
  40         );
  41 }
  42
  43 function boolean isCorrelated(VesAlarm a, VesAlarm b) {
  44         String logicLinkA = getLogicLink(a);
  45         if (logicLinkA == null) {
  46                 return false;
  47         }
  48
  49         String logicLinkB = getLogicLink(b);
  50         if (logicLinkB == null) {
  51                 return false;
  52         }
  53
  54         return logicLinkA.equals(logicLinkB);
  55 }
  56
  57 function void updateAaiStatus(String networkId, String pnfName, String ifName,
  58                 String linkName, String status) {
  59         AaiQuery4Ccvpn aai = AaiQuery4Ccvpn.newInstance();
  60         Map<String, Object> body = new HashMap<String, Object>(){
  61                 {
  62                         put("operational-status", status);
  63                 }
  64         };
  65         aai.updateLogicLinkStatus(linkName, body);
  66         aai.updateTerminalPointStatus(networkId, pnfName, ifName, body);
  67 }
  68
  69 function Map<String, Object> getAdditionalResourceInfo(String networkId, String pnfName, String ifName, String status) {
  70         AaiQuery4Ccvpn aai = AaiQuery4Ccvpn.newInstance();
  71         JSONArray instances = aai.getServiceInstances(networkId, pnfName, ifName, status);
  72
  73         Map<String, Object> ret = new HashMap<String, Object>();
  74
  75         StringBuilder sb = new StringBuilder();
  76         for(int i = 0; i < instances.size(); ++i) {
  77                 JSONObject o = instances.getJSONObject(i);
  78                 String name = o.getString("service-instance-name");
  79                 ret.put(name + ".input-parameters", o.getString("input-parameters"));
  80                 sb.append(name).append(",");
  81         }
  82         ret.put("service-instance.service-instance-name", sb.substring(0, sb.length() -1).toString());
  83         ret.put("vserver.vserver-name", "TBD");
  84         ret.put("globalSubscriberId", instances.getJSONObject(0).getString("globalSubscriberId"));
  85         ret.put("serviceType", instances.getJSONObject(0).getString("serviceType"));
  86
  87         return ret;
  88 }
  89
  90 function PolicyMsg createPolicyMsg(VesAlarm alarm) {
  91         PolicyMsg m = new PolicyMsg();
  92         m.setPolicyVersion("1.0.0.5");
  93         m.setPolicyName("CCVPN");
  94         m.setPolicyScope("service=SOTNService,type=SampleType,closedLoopControlName=CL-CCVPN-d925ed73-8231-4d02-9545-db4e101f88f8");
  95         m.setClosedLoopControlName(DmaapService.loopControlNames.get("org.onap.holmes.ccvpn"));
  96         m.setRequestID(UUID.randomUUID().toString());
  97         m.setClosedLoopAlarmStart(alarm.getStartEpochMicrosec());
  98         m.setClosedLoopAlarmEnd(alarm.getLastEpochMicrosec());
  99         m.setTarget("vserver.vserver-name");
 100         m.setAai(getAdditionalResourceInfo(
 101                 getAdditionalField(alarm, "networkId"),
 102                 getAdditionalField(alarm, "node"),
 103                 getAdditionalField(alarm, "tp-id"),
 104                 getAdditionalField(alarm, "oper-status")
 105         ));
 106
 107         DmaapService.alarmUniqueRequestID.put(alarm.getEventId(), m.getRequestID());
 108
 109         return m;
 110 }
 111
 112 rule "Update AAI Information"
 113         no-loop true
 114         salience 300
 115         when
 116                 $a: VesAlarm(eventName.indexOf("Fault_Route_Status") != -1)
 117         then
 118                 updateAaiStatus (
 119                         getAdditionalField($a, "networkId"),
 120                         getAdditionalField($a, "node"),
 121                         getAdditionalField($a, "tp-id"),
 122                         getLogicLink($a),
 123                         getAdditionalField($a, "oper-status")
 124                 );
 125 end
 126
 127 rule "Set Up Correlation"
 128         no-loop true
 129         salience 200
 130         when
 131                 $a: VesAlarm($id: eventId,
 132                                                 $start: startEpochMicrosec,
 133                                                 eventName.indexOf("Fault_Route_Status") != -1)
 134                 $b: VesAlarm(eventId != $id,
 135                                                 eventName.indexOf("Fault_Route_Status") != -1,
 136                                                 Math.abs(startEpochMicrosec - $start) < 60000)
 137         then
 138                 if ("down".equalsIgnoreCase(getAdditionalField($a, "oper-status"))
 139                                 && "down".equalsIgnoreCase(getAdditionalField($b, "oper-status"))) {
 140                     if (isCorrelated($a, $b)){
 141                         // If any of the alarms have been marked as root, a policy message has ever been created and sent. Do NOT send it again.
 142                         if ($a.getRootFlag() != 1 && $b.getRootFlag() != 1) {
 143                                 PolicyMsg msg = createPolicyMsg($a);
 144                                 DmaapService dmaapService = ServiceLocatorHolder.getLocator().getService(DmaapService.class);
 145                                 dmaapService.publishPolicyMsg(msg, "unauthenticated.DCAE_CL_OUTPUT");
 146                         }
 147                         $a.setRootFlag(1);
 148                         $b.setRootFlag(1);
 149                         update($a);
 150                         update($b);
 151                     }
 152             }
 153 end
 154
 155 rule "Clear Alarms"
 156         no-loop true
 157         salience 100
 158         when
 159                 $a: VesAlarm(eventName.indexOf("Fault_Route_Status") != -1)
 160         then
 161                 if ("up".equalsIgnoreCase(getAdditionalField($a, "oper-status"))) {
 162                         if (DmaapService.alarmUniqueRequestID.containsKey($a.getEventId())) {
 163                                 DmaapService.alarmUniqueRequestID.remove($a.getEventId());
 164                         }
 165
 166                         //TODO: send alarm clearing message to Policy - for now it's not needed.
 167                 //...
 168
 169                         retract($a);
 170                 }
 171 end