Commit 5d996788 authored by Konstantinos Poulakakis's avatar Konstantinos Poulakakis
Browse files

refactor: Decouple services that needed for monitoring (alarms) and based... 

refactor: Decouple services that needed for monitoring (alarms) and based common policy services. Didn't change any of th existing implementation.
parent 0d5f5d1c

src/policy/src/main/java/org/etsi/tfs/policy/policy/AddPolicyDeviceImpl.java

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package org.etsi.tfs.policy.policy;



import static org.etsi.tfs.policy.common.ApplicationProperties.INVALID_MESSAGE;

import static org.etsi.tfs.policy.common.ApplicationProperties.VALIDATED_POLICYRULE_STATE;



import io.smallrye.mutiny.Uni;

import io.smallrye.mutiny.groups.UniJoin;

import jakarta.enterprise.context.ApplicationScoped;

import jakarta.inject.Inject;

import java.util.List;

import org.etsi.tfs.policy.context.ContextService;

import org.etsi.tfs.policy.exception.ExternalServiceFailureException;

import org.etsi.tfs.policy.policy.model.PolicyRule;

import org.etsi.tfs.policy.policy.model.PolicyRuleBasic;

import org.etsi.tfs.policy.policy.model.PolicyRuleDevice;

import org.etsi.tfs.policy.policy.model.PolicyRuleState;

import org.etsi.tfs.policy.policy.model.PolicyRuleStateEnum;

import org.etsi.tfs.policy.policy.model.PolicyRuleTypeDevice;

import org.etsi.tfs.policy.policy.service.PolicyRuleConditionValidator;



@ApplicationScoped

public class AddPolicyDeviceImpl {



    @Inject private PolicyRuleConditionValidator policyRuleConditionValidator;



    @Inject private CommonPolicyServiceImpl commonPolicyServiceImpl;

    @Inject private CommonAlarmService commonAlarmService;



    @Inject private ContextService contextService;



    public Uni<List<Boolean>> returnInvalidDeviceIds(List<String> deviceIds) {

        UniJoin.Builder<Boolean> builder = Uni.join().builder();

        for (String deviceId : deviceIds) {

            final var validatedDeviceId = policyRuleConditionValidator.isDeviceIdValid(deviceId);

            builder.add(validatedDeviceId);

        }

        return builder.joinAll().andFailFast();

    }



    public Uni<PolicyRuleState> areDeviceOnContext(

            List<Boolean> areDevices,

            PolicyRuleDevice policyRuleDevice,

            PolicyRuleBasic policyRuleBasic) {

        if (areDevices.contains(false)) {

            var policyRuleState =

                    new PolicyRuleState(

                            PolicyRuleStateEnum.POLICY_FAILED,

                            String.format(

                                    INVALID_MESSAGE, policyRuleDevice.getPolicyRuleBasic().getPolicyRuleId()));



            return Uni.createFrom().item(policyRuleState);

        }



        final var policyRuleTypeDevice = new PolicyRuleTypeDevice(policyRuleDevice);

        final var policyRule = new PolicyRule(policyRuleTypeDevice);



        final var alarmDescriptorList = commonPolicyServiceImpl.createAlarmDescriptorList(policyRule);

        if (alarmDescriptorList.isEmpty()) {

            var policyRuleState =

                    new PolicyRuleState(

                            PolicyRuleStateEnum.POLICY_FAILED,

                            String.format(

                                    "Invalid PolicyRuleConditions in PolicyRule with ID: %s",

                                    policyRuleBasic.getPolicyRuleId()));

            return Uni.createFrom().item(policyRuleState);

        }



        return contextService

                .setPolicyRule(policyRule)

                .onFailure()

                .transform(failure -> new ExternalServiceFailureException(failure.getMessage()))

                .onItem()

                .transform(

                        policyId -> {

                            commonAlarmService.startMonitoringBasedOnAlarmDescriptors(

                                    policyId, policyRuleDevice, alarmDescriptorList);

                            return VALIDATED_POLICYRULE_STATE;

                        });

    }

}

src/policy/src/main/java/org/etsi/tfs/policy/policy/AddPolicyServiceImpl.java

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package org.etsi.tfs.policy.policy;



import static org.etsi.tfs.policy.common.ApplicationProperties.INVALID_MESSAGE;

import static org.etsi.tfs.policy.common.ApplicationProperties.VALIDATED_POLICYRULE_STATE;



import io.smallrye.mutiny.Uni;

import jakarta.enterprise.context.ApplicationScoped;

import jakarta.inject.Inject;

import java.util.List;

import org.etsi.tfs.policy.context.ContextService;

import org.etsi.tfs.policy.context.model.ServiceId;

import org.etsi.tfs.policy.exception.NewException;

import org.etsi.tfs.policy.monitoring.model.AlarmDescriptor;

import org.etsi.tfs.policy.policy.model.PolicyRule;

import org.etsi.tfs.policy.policy.model.PolicyRuleBasic;

import org.etsi.tfs.policy.policy.model.PolicyRuleService;

import org.etsi.tfs.policy.policy.model.PolicyRuleState;

import org.etsi.tfs.policy.policy.model.PolicyRuleStateEnum;

import org.etsi.tfs.policy.policy.model.PolicyRuleTypeService;

import org.jboss.logging.Logger;



@ApplicationScoped

public class AddPolicyServiceImpl {

    private static final Logger LOGGER = Logger.getLogger(AddPolicyServiceImpl.class);



    @Inject private CommonPolicyServiceImpl commonPolicyService;

    @Inject private CommonAlarmService commonAlarmService;

    @Inject private ContextService contextService;



    public Uni<PolicyRuleState> constructPolicyStateBasedOnCriteria(

            Boolean isService,

            ServiceId serviceId,

            PolicyRuleService policyRuleService,

            PolicyRuleBasic policyRuleBasic) {



        if (!isService) {

            var policyRuleState =

                    new PolicyRuleState(

                            PolicyRuleStateEnum.POLICY_FAILED, String.format(INVALID_MESSAGE, serviceId));



            return Uni.createFrom().item(policyRuleState);

        }



        final var policyRuleTypeService = new PolicyRuleTypeService(policyRuleService);

        final var policyRule = new PolicyRule(policyRuleTypeService);

        final var alarmDescriptorList = commonPolicyService.createAlarmDescriptorList(policyRule);



        if (alarmDescriptorList.isEmpty()) {

            var policyRuleState =

                    new PolicyRuleState(

                            PolicyRuleStateEnum.POLICY_FAILED,

                            String.format(

                                    "Invalid PolicyRuleConditions in PolicyRule with ID: %s",

                                    policyRuleBasic.getPolicyRuleId()));

            return Uni.createFrom().item(policyRuleState);

        }



        return setPolicyRuleOnContextAndReturnState(policyRule, policyRuleService, alarmDescriptorList);

    }



    private Uni<PolicyRuleState> setPolicyRuleOnContextAndReturnState(

            PolicyRule policyRule,

            PolicyRuleService policyRuleService,

            List<AlarmDescriptor> alarmDescriptorList) {

        return contextService

                .setPolicyRule(policyRule)

                .onFailure()

                .transform(failure -> new NewException(failure.getMessage()))

                .onItem()

                .transform(

                        policyId -> {

                            commonAlarmService.startMonitoringBasedOnAlarmDescriptors(

                                    policyId, policyRuleService, alarmDescriptorList);



                            return VALIDATED_POLICYRULE_STATE;

                        });

    }

}

src/policy/src/main/java/org/etsi/tfs/policy/policy/CommonAlarmService.java

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package org.etsi.tfs.policy.policy;



import static org.etsi.tfs.policy.common.ApplicationProperties.PROVISIONED_POLICYRULE_STATE;

import static org.etsi.tfs.policy.common.ApplicationProperties.VALIDATED_POLICYRULE_STATE;



import io.smallrye.mutiny.Multi;

import io.smallrye.mutiny.Uni;

import io.smallrye.mutiny.subscription.Cancellable;

import jakarta.enterprise.context.ApplicationScoped;

import jakarta.inject.Inject;

import java.util.ArrayList;

import java.util.List;

import org.etsi.tfs.policy.monitoring.MonitoringService;

import org.etsi.tfs.policy.monitoring.model.AlarmDescriptor;

import org.etsi.tfs.policy.monitoring.model.AlarmResponse;

import org.etsi.tfs.policy.monitoring.model.AlarmSubscription;

import org.etsi.tfs.policy.policy.model.PolicyRuleDevice;

import org.etsi.tfs.policy.policy.model.PolicyRuleService;

import org.jboss.logging.Logger;



@ApplicationScoped

public class CommonAlarmService {

    private static final Logger LOGGER = Logger.getLogger(CommonAlarmService.class);



    @Inject private CommonPolicyServiceImpl commonPolicyServiceImpl;

    @Inject private MonitoringService monitoringService;



    public void startMonitoringBasedOnAlarmDescriptors(

            String policyId,

            PolicyRuleDevice policyRuleDevice,

            List<AlarmDescriptor> alarmDescriptorList) {

        commonPolicyServiceImpl.setPolicyRuleDeviceToContext(

                policyRuleDevice, VALIDATED_POLICYRULE_STATE);

        commonPolicyServiceImpl.noAlarms = 0;



        List<Uni<String>> alarmIds = createAlarmList(alarmDescriptorList);



        List<Multi<AlarmResponse>> alarmResponseStreamList =

                transformAlarmIds(alarmIds, policyRuleDevice);



        // Merge the promised alarms into one stream (Multi Object)

        final var multi = Multi.createBy().merging().streams(alarmResponseStreamList);

        commonPolicyServiceImpl.setPolicyRuleDeviceToContext(

                policyRuleDevice, PROVISIONED_POLICYRULE_STATE);



        commonPolicyServiceImpl

                .getSubscriptionList()

                .put(policyId, monitorAlarmResponseForDevice(multi));



        // TODO: Resubscribe to the stream, if it has ended



        // TODO: Redesign evaluation of action

        // evaluateAction(policyRule, alarmDescriptorList, multi);

    }



    public void startMonitoringBasedOnAlarmDescriptors(

            String policyId,

            PolicyRuleService policyRuleService,

            List<AlarmDescriptor> alarmDescriptorList) {

        commonPolicyServiceImpl.setPolicyRuleServiceToContext(

                policyRuleService, VALIDATED_POLICYRULE_STATE);

        commonPolicyServiceImpl.noAlarms = 0;



        List<Uni<String>> alarmIds =

                createAlarmList(alarmDescriptorList); // setAllarmtomonitoring get back alarmid



        List<Multi<AlarmResponse>> alarmResponseStreamList =

                transformAlarmIds(alarmIds, policyRuleService);



        // Merge the promised alarms into one stream (Multi Object)

        final var multi = Multi.createBy().merging().streams(alarmResponseStreamList);

        commonPolicyServiceImpl.setPolicyRuleServiceToContext(

                policyRuleService, PROVISIONED_POLICYRULE_STATE);



        commonPolicyServiceImpl

                .getSubscriptionList()

                .put(policyId, monitorAlarmResponseForService(multi));



        // TODO: Resubscribe to the stream, if it has ended



        // TODO: Redesign evaluation of action

        // evaluateAction(policyRule, alarmDescriptorList, multi);

    }



    /**

    * Transform the alarmIds into promised alarms returned from the getAlarmResponseStream

    *

    * @param alarmIds the list of alarm ids

    * @param policyRuleService the policy rule service

    * @return

    */

    private List<Multi<AlarmResponse>> transformAlarmIds(

            List<Uni<String>> alarmIds, PolicyRuleService policyRuleService) {

        List<Multi<AlarmResponse>> alarmResponseStreamList = new ArrayList<>();

        for (Uni<String> alarmId : alarmIds) {

            Multi<AlarmResponse> alarmResponseStream =

                    alarmId.onItem().transformToMulti(id -> setPolicyMonitor(policyRuleService, id));



            alarmResponseStreamList.add(alarmResponseStream);

        }

        return alarmResponseStreamList;

    }



    private List<Multi<AlarmResponse>> transformAlarmIds(

            List<Uni<String>> alarmIds, PolicyRuleDevice policyRuleDevice) {

        // Transform the alarmIds into promised alarms returned from the

        // getAlarmResponseStream

        List<Multi<AlarmResponse>> alarmResponseStreamList = new ArrayList<>();

        for (Uni<String> alarmId : alarmIds) {

            alarmResponseStreamList.add(

                    alarmId.onItem().transformToMulti(id -> setPolicyMonitor(policyRuleDevice, id)));

        }

        return alarmResponseStreamList;

    }



    private Multi<AlarmResponse> setPolicyMonitor(PolicyRuleService policyRuleService, String id) {

        commonPolicyServiceImpl.getAlarmPolicyRuleServiceMap().put(id, policyRuleService);



        // TODO: Create infinite subscription

        var alarmSubscription = new AlarmSubscription(id, 259200, 5000);

        return monitoringService.getAlarmResponseStream(alarmSubscription);

    }



    private Multi<AlarmResponse> setPolicyMonitor(PolicyRuleDevice policyRuleDevice, String id) {

        commonPolicyServiceImpl.getAlarmPolicyRuleDeviceMap().put(id, policyRuleDevice);



        // TODO: Create infinite subscription

        var alarmSubscription = new AlarmSubscription(id, 259200, 5000);

        return monitoringService.getAlarmResponseStream(alarmSubscription);

    }



    /**

    * Create an alarmIds list that contains the promised ids returned from setKpiAlarm

    *

    * @param alarmDescriptorList the list of alarm descriptors

    * @return the list of alarm descriptors

    */

    public List<Uni<String>> createAlarmList(List<AlarmDescriptor> alarmDescriptorList) {

        List<Uni<String>> alarmIds = new ArrayList<Uni<String>>();

        for (AlarmDescriptor alarmDescriptor : alarmDescriptorList) {

            LOGGER.infof("alarmDescriptor:");

            LOGGER.infof(alarmDescriptor.toString());

            alarmIds.add(monitoringService.setKpiAlarm(alarmDescriptor));

        }

        return alarmIds;

    }



    private Cancellable monitorAlarmResponseForService(Multi<AlarmResponse> multi) {

        return multi

                .subscribe()

                .with(

                        alarmResponse -> {

                            LOGGER.infof("**************************Received Alarm!**************************");

                            LOGGER.infof("alarmResponse:");

                            LOGGER.info(alarmResponse);

                            LOGGER.info(alarmResponse.getAlarmId());

                            commonPolicyServiceImpl.applyActionService(alarmResponse.getAlarmId());

                        });

    }



    private Cancellable monitorAlarmResponseForDevice(Multi<AlarmResponse> multi) {

        return multi

                .subscribe()

                .with(

                        alarmResponse -> {

                            LOGGER.infof("**************************Received Alarm!**************************");

                            LOGGER.infof("alarmResponse:");

                            LOGGER.info(alarmResponse);

                            LOGGER.info(alarmResponse.getAlarmId());

                            commonPolicyServiceImpl.applyActionDevice(alarmResponse.getAlarmId());

                        });

    }

}

src/policy/src/main/java/org/etsi/tfs/policy/policy/CommonPolicyServiceImpl.java

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src/policy/src/main/java/org/etsi/tfs/policy/policy/DeletePolicyImpl.java

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package org.etsi.tfs.policy.policy;



public class DeletePolicyImpl {}