package org.oransc.policyagent.tasks;
+import java.util.Collection;
+
import org.oransc.policyagent.clients.A1Client;
+import org.oransc.policyagent.clients.A1ClientFactory;
import org.oransc.policyagent.repository.Policies;
+import org.oransc.policyagent.repository.PolicyTypes;
import org.oransc.policyagent.repository.Ric;
import org.oransc.policyagent.repository.Ric.RicState;
import org.oransc.policyagent.repository.Rics;
+import org.oransc.policyagent.repository.Services;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
private final Rics rics;
private final Policies policies;
- private final A1Client a1Client;
+ private final PolicyTypes policyTypes;
+ private final A1ClientFactory a1ClientFactory;
+ private final Services services;
@Autowired
- public RepositorySupervision(Rics rics, Policies policies, A1Client a1Client) {
+ public RepositorySupervision(Rics rics, Policies policies, A1ClientFactory a1ClientFactory, PolicyTypes policyTypes,
+ Services services) {
this.rics = rics;
this.policies = policies;
- this.a1Client = a1Client;
+ this.a1ClientFactory = a1ClientFactory;
+ this.policyTypes = policyTypes;
+ this.services = services;
}
/**
public void checkAllRics() {
logger.debug("Checking Rics starting");
createTask().subscribe(this::onRicChecked, this::onError, this::onComplete);
-
}
- private Flux<Ric> createTask() {
- return Flux.fromIterable(rics.getRics()) //
- .groupBy(ric -> ric.state()) //
- .flatMap(fluxGroup -> handleGroup(fluxGroup.key(), fluxGroup));
+ private Flux<RicData> createTask() {
+ synchronized (this.rics) {
+ return Flux.fromIterable(rics.getRics()) //
+ .flatMap(ric -> createRicData(ric)) //
+ .flatMap(ricData -> checkRicState(ricData)) //
+ .flatMap(ricData -> checkRicPolicies(ricData)) //
+ .flatMap(ricData -> checkRicPolicyTypes(ricData));
+ }
}
- private Flux<Ric> handleGroup(Ric.RicState key, Flux<Ric> fluxGroup) {
- logger.debug("Handling group {}", key);
- switch (key) {
- case ACTIVE:
- return fluxGroup.flatMap(this::checkActive);
+ private static class RicData {
+ RicData(Ric ric, A1Client a1Client) {
+ this.ric = ric;
+ this.a1Client = a1Client;
+ }
- case NOT_REACHABLE:
- return fluxGroup.flatMap(this::checkNotReachable);
+ final Ric ric;
+ final A1Client a1Client;
+ }
- default:
- // If not initiated, leave it to the StartupService.
- return Flux.empty();
+ private Mono<RicData> createRicData(Ric ric) {
+ return Mono.just(ric) //
+ .flatMap(aRic -> this.a1ClientFactory.createA1Client(ric)) //
+ .flatMap(a1Client -> Mono.just(new RicData(ric, a1Client)));
+ }
+
+ private Mono<RicData> checkRicState(RicData ric) {
+ if (ric.ric.getState() == RicState.UNDEFINED) {
+ return startRecovery(ric);
+ } else if (ric.ric.getState() == RicState.RECOVERING) {
+ return Mono.empty();
+ } else {
+ return Mono.just(ric);
}
}
- private Mono<Ric> checkActive(Ric ric) {
- logger.debug("Handling active ric {}", ric);
- a1Client.getPolicyIdentities(ric.getConfig().baseUrl()) //
- .filter(policyId -> !policies.containsPolicy(policyId)) //
- .doOnNext(policyId -> logger.debug("Deleting policy {}", policyId))
- .flatMap(policyId -> a1Client.deletePolicy(ric.getConfig().baseUrl(), policyId)) //
- .subscribe();
+ private Mono<RicData> checkRicPolicies(RicData ric) {
+ return ric.a1Client.getPolicyIdentities() //
+ .onErrorResume(t -> Mono.empty()) //
+ .flatMap(ricP -> validateInstances(ricP, ric));
+ }
+
+ private Mono<RicData> validateInstances(Collection<String> ricPolicies, RicData ric) {
+ synchronized (this.policies) {
+ if (ricPolicies.size() != policies.getForRic(ric.ric.name()).size()) {
+ return startRecovery(ric);
+ }
+ }
+ for (String policyId : ricPolicies) {
+ if (!policies.containsPolicy(policyId)) {
+ return startRecovery(ric);
+ }
+ }
return Mono.just(ric);
}
- private Mono<Ric> checkNotReachable(Ric ric) {
- logger.debug("Handling not reachable ric {}", ric);
- a1Client.getPolicyIdentities(ric.getConfig().baseUrl()) //
- .filter(policyId -> !policies.containsPolicy(policyId)) //
- .doOnNext(policyId -> logger.debug("Deleting policy {}", policyId))
- .flatMap(policyId -> a1Client.deletePolicy(ric.getConfig().baseUrl(), policyId)) //
- .subscribe(null, null, () -> ric.setState(RicState.ACTIVE));
+ private Mono<RicData> checkRicPolicyTypes(RicData ric) {
+ return ric.a1Client.getPolicyTypeIdentities() //
+ .onErrorResume(t -> {
+ return Mono.empty();
+ }) //
+ .flatMap(ricTypes -> validateTypes(ricTypes, ric));
+ }
+
+ private Mono<RicData> validateTypes(Collection<String> ricTypes, RicData ric) {
+ if (ricTypes.size() != ric.ric.getSupportedPolicyTypes().size()) {
+ return startRecovery(ric);
+ }
+ for (String typeName : ricTypes) {
+ if (!ric.ric.isSupportingType(typeName)) {
+ return startRecovery(ric);
+ }
+ }
return Mono.just(ric);
}
- private void onRicChecked(Ric ric) {
- logger.info("Ric: " + ric.name() + " checked");
+ private Mono<RicData> startRecovery(RicData ric) {
+ RicRecoveryTask recovery = new RicRecoveryTask(a1ClientFactory, policyTypes, policies, services);
+ recovery.run(ric.ric);
+ return Mono.empty();
+ }
+
+ private void onRicChecked(RicData ric) {
+ logger.info("Ric: " + ric.ric.name() + " checked");
}
private void onError(Throwable t) {