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package org.onap.holmes.ccvpnBandwidth;
 
dialect "java"

    import org.onap.holmes.common.api.stat.VesAlarm;
    import org.onap.holmes.common.api.stat.AlarmAdditionalField;
    import org.onap.holmes.common.aai.AaiQuery4Ccvpn2;
    import org.onap.holmes.common.exception.CorrelationException;
    import org.onap.holmes.common.dmaap.entity.PolicyMsg;
    import org.onap.holmes.common.dmaap.DmaapService;
    import org.onap.holmes.common.utils.DroolsLog;
    import org.onap.holmes.common.utils.SpringContextUtil;

    import com.google.gson.JsonObject;

    import java.util.List;
    import java.util.Map;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.UUID;

    function String getAdditionalField(VesAlarm a, String field) {
    List<AlarmAdditionalField> fields = a.getAlarmAdditionalInformation();
    for (AlarmAdditionalField f : fields) {
        if (f.getName().equals(field)) {
           return f.getValue();
        }
    }
        return null;
    }

    function Map<String, Object> getAdditionalResourceInfo(VesAlarm a, String bandwidth) {
        AaiQuery4Ccvpn2 aai = AaiQuery4Ccvpn2.newInstance();
        JsonObject instance = aai.getServiceInstance(getAdditionalField(a, "siteService")); 
        Map<String, Object> ret = new HashMap<String, Object>();
        ret.put("service-instance.service-instance-id", instance.get("service-instance-id").getAsString()); 
         ret.put("vserver.vserver-name", "TBD");
         ret.put("globalSubscriberId", instance.get("globalSubscriberId").getAsString());
         ret.put("serviceType", instance.get("serviceType").getAsString());
         ret.put("vserver.is-closed-loop-disabled", "false");
         ret.put("vserver.prov-status", "ACTIVE");
         ret.put("bandwidth", bandwidth);
         ret.put("bandwidth-change-time", getAdditionalField(a, "timestamp"));
         ret.put("vnfId", instance.get("vnfId").getAsString());
         return ret;
    }

    function PolicyMsg createPolicyMsg(VesAlarm alarm, String bandwidth) {
        PolicyMsg m = new PolicyMsg();
        m.setPolicyVersion("2.0.0");
        m.setPolicyName("ccvpn");
        m.setPolicyScope("service=SOTNService,type=SampleType,closedLoopControlName=CL-CCVPN-d925ed73-8231-4d02-9545-db4e101f88f8");
        m.setClosedLoopControlName(DmaapService.loopControlNames.get("org.onap.holmes.ccvpnBandwidth"));
        m.setRequestID(UUID.randomUUID().toString());
        m.setClosedLoopAlarmStart(alarm.getStartEpochMicrosec());
        m.setClosedLoopAlarmEnd(alarm.getLastEpochMicrosec());
        m.setTarget("vserver.vserver-name");
        m.setAai(getAdditionalResourceInfo(alarm, bandwidth));

        DmaapService.alarmUniqueRequestID.put(alarm.getEventId(), m.getRequestID());

         return m;
    }

    rule "Analyse traffic exception"
        no-loop true
         salience 200
         when
            $a: VesAlarm(eventName.indexOf("bandwidth") != -1, 
                        rootFlag != 1)
       then
        String bandwidth = "5000";
           if ("Abnormal".equalsIgnoreCase(getAdditionalField($a, "exceptionType"))) { 
               bandwidth = "10000";
           }
        PolicyMsg msg = createPolicyMsg($a, bandwidth);
        DmaapService dmaapService = SpringContextUtil.getBean(DmaapService.class);
        dmaapService.publishPolicyMsg(msg, "dcae_cl_out");
        $a.setRootFlag(1);
    end