package org.oransc.policyagent.tasks;
-import java.util.Collection;
import java.util.Vector;
import org.oransc.policyagent.clients.A1Client;
+import org.oransc.policyagent.clients.A1ClientFactory;
+import org.oransc.policyagent.clients.AsyncRestClient;
import org.oransc.policyagent.exceptions.ServiceException;
import org.oransc.policyagent.repository.ImmutablePolicyType;
import org.oransc.policyagent.repository.Policies;
import org.oransc.policyagent.repository.PolicyType;
import org.oransc.policyagent.repository.PolicyTypes;
import org.oransc.policyagent.repository.Ric;
+import org.oransc.policyagent.repository.Service;
+import org.oransc.policyagent.repository.Services;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Mono;
/**
- * Loads information about RealTime-RICs at startup.
+ * Recovery handling of RIC, which means:
+ * - load all policy types
+ * - send all policy instances to the RIC
+ * --- if that fails remove all policy instances
+ * - Notify subscribing services
*/
public class RicRecoveryTask {
private static final Logger logger = LoggerFactory.getLogger(RicRecoveryTask.class);
- private final A1Client a1Client;
+ private final A1ClientFactory a1ClientFactory;
private final PolicyTypes policyTypes;
private final Policies policies;
+ private final Services services;
- public RicRecoveryTask(A1Client a1Client, PolicyTypes policyTypes, Policies policies) {
- this.a1Client = a1Client;
+ public RicRecoveryTask(A1ClientFactory a1ClientFactory, PolicyTypes policyTypes, Policies policies,
+ Services services) {
+ this.a1ClientFactory = a1ClientFactory;
this.policyTypes = policyTypes;
this.policies = policies;
- }
-
- public void run(Collection<Ric> rics) {
- for (Ric ric : rics) {
- run(ric);
- }
+ this.services = services;
}
public void run(Ric ric) {
}
ric.setState(Ric.RicState.RECOVERING);
}
- Flux<PolicyType> recoveredTypes = recoverPolicyTypes(ric);
- Flux<?> deletedPolicies = deletePolicies(ric);
-
- Flux.merge(recoveredTypes, deletedPolicies) //
+ this.a1ClientFactory.createA1Client(ric)//
+ .flatMapMany(client -> startRecover(ric, client)) //
.subscribe(x -> logger.debug("Recover: " + x), //
- throwable -> onError(ric, throwable), //
- () -> onComplete(ric));
+ throwable -> onRecoveryError(ric, throwable), //
+ () -> onRecoveryComplete(ric));
}
- private void onComplete(Ric ric) {
+ private Flux<Object> startRecover(Ric ric, A1Client a1Client) {
+ Flux<PolicyType> recoverTypes = recoverPolicyTypes(ric, a1Client);
+ Flux<?> deletePoliciesInRic = a1Client.deleteAllPolicies();
+ Flux<?> recreatePoliciesInRic = recreateAllPoliciesInRic(ric, a1Client);
+
+ return Flux.concat(recoverTypes, deletePoliciesInRic, recreatePoliciesInRic);
+ }
+
+ private void onRecoveryComplete(Ric ric) {
logger.debug("Recovery completed for:" + ric.name());
- ric.setState(Ric.RicState.ACTIVE);
+ ric.setState(Ric.RicState.IDLE);
+ notifyAllServices("Recovery completed for:" + ric.name());
+ }
+
+ private void notifyAllServices(String body) {
+ synchronized (services) {
+ for (Service service : services.getAll()) {
+ String url = service.getCallbackUrl();
+ if (service.getCallbackUrl().length() > 0) {
+ createClient(url) //
+ .put("", body) //
+ .subscribe(rsp -> logger.debug("Service called"),
+ throwable -> logger.warn("Service called failed", throwable),
+ () -> logger.debug("Service called complete"));
+ }
+ }
+ }
+ }
+
+ private void onRecoveryError(Ric ric, Throwable t) {
+ logger.warn("Recovery failed for: {}, reason: {}", ric.name(), t.getMessage());
+ // If recovery fails, try to remove all instances
+ deleteAllPolicies(ric);
+ Flux<PolicyType> recoverTypes = this.a1ClientFactory.createA1Client(ric) //
+ .flatMapMany(a1Client -> recoverPolicyTypes(ric, a1Client));
+ Flux<?> deletePoliciesInRic = this.a1ClientFactory.createA1Client(ric) //
+ .flatMapMany(a1Client -> a1Client.deleteAllPolicies());
+
+ Flux.merge(recoverTypes, deletePoliciesInRic) //
+ .subscribe(x -> logger.debug("Brute recover: " + x), //
+ throwable -> onRemoveAllError(ric, throwable), //
+ () -> onRecoveryComplete(ric));
+ }
+ private void onRemoveAllError(Ric ric, Throwable t) {
+ logger.warn("Remove all failed for: {}, reason: {}", ric.name(), t.getMessage());
+ ric.setState(Ric.RicState.UNDEFINED);
}
- private void onError(Ric ric, Throwable t) {
- logger.debug("Recovery failed for: {}, reason: {}", ric.name(), t.getMessage());
- ric.setState(Ric.RicState.NOT_REACHABLE);
+ private AsyncRestClient createClient(final String url) {
+ return new AsyncRestClient(url);
}
- private Flux<PolicyType> recoverPolicyTypes(Ric ric) {
+ private Flux<PolicyType> recoverPolicyTypes(Ric ric, A1Client a1Client) {
ric.clearSupportedPolicyTypes();
- return a1Client.getPolicyTypeIdentities(ric.getConfig().baseUrl()) //
+ return a1Client.getPolicyTypeIdentities() //
.flatMapMany(types -> Flux.fromIterable(types)) //
- .doOnNext(typeId -> logger.debug("For ric: {}, handling type: {}", ric.getConfig().name(), typeId))
- .flatMap((policyTypeId) -> getPolicyType(ric, policyTypeId)) //
+ .doOnNext(typeId -> logger.debug("For ric: {}, handling type: {}", ric.getConfig().name(), typeId)) //
+ .flatMap((policyTypeId) -> getPolicyType(ric, policyTypeId, a1Client)) //
.doOnNext(policyType -> ric.addSupportedPolicyType(policyType)); //
}
- private Mono<PolicyType> getPolicyType(Ric ric, String policyTypeId) {
+ private Mono<PolicyType> getPolicyType(Ric ric, String policyTypeId, A1Client a1Client) {
if (policyTypes.contains(policyTypeId)) {
try {
return Mono.just(policyTypes.getType(policyTypeId));
return Mono.error(e);
}
}
- return a1Client.getPolicyType(ric.getConfig().baseUrl(), policyTypeId) //
+ return a1Client.getPolicyTypeSchema(policyTypeId) //
.flatMap(schema -> createPolicyType(policyTypeId, schema));
}
return Mono.just(pt);
}
- private Flux<String> deletePolicies(Ric ric) {
- Collection<Policy> ricPolicies = new Vector<>(policies.getForRic(ric.name()));
- for (Policy policy : ricPolicies) {
- this.policies.remove(policy);
+ private void deleteAllPolicies(Ric ric) {
+ synchronized (policies) {
+ for (Policy policy : policies.getForRic(ric.name())) {
+ this.policies.remove(policy);
+ }
}
+ }
- return a1Client.getPolicyIdentities(ric.getConfig().baseUrl()) //
- .flatMapMany(policyIds -> Flux.fromIterable(policyIds)) //
- .doOnNext(policyId -> logger.debug("Deleting policy: {}, for ric: {}", policyId, ric.getConfig().name()))
- .flatMap(policyId -> a1Client.deletePolicy(ric.getConfig().baseUrl(), policyId)); //
+ private Flux<String> recreateAllPoliciesInRic(Ric ric, A1Client a1Client) {
+ synchronized (policies) {
+ return Flux.fromIterable(new Vector<>(policies.getForRic(ric.name()))) //
+ .doOnNext(
+ policy -> logger.debug("Recreating policy: {}, for ric: {}", policy.id(), ric.getConfig().name()))
+ .flatMap(policy -> a1Client.putPolicy(policy));
+ }
}
+
}
Code Review / nonrtric.git / blobdiff