Changed in config will add and recover Rics

[nonrtric.git] / policy-agent / src / main / java / org / oransc / policyagent / tasks / RepositorySupervision.java

diff --git a/policy-agent/src/main/java/org/oransc/policyagent/tasks/RepositorySupervision.java b/policy-agent/src/main/java/org/oransc/policyagent/tasks/RepositorySupervision.java
index 7984a62..1a90382 100644 (file)
--- a/policy-agent/src/main/java/org/oransc/policyagent/tasks/RepositorySupervision.java
+++ b/policy-agent/src/main/java/org/oransc/policyagent/tasks/RepositorySupervision.java
@@ -20,11 +20,15 @@
 
 package org.oransc.policyagent.tasks;
 
+import java.util.Collection;
+
 import org.oransc.policyagent.clients.A1Client;
 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;
@@ -45,13 +49,18 @@ public class RepositorySupervision {
 
     private final Rics rics;
     private final Policies policies;
+    private final PolicyTypes policyTypes;
     private final A1Client a1Client;
+    private final Services services;
 
     @Autowired
-    public RepositorySupervision(Rics rics, Policies policies, A1Client a1Client) {
+    public RepositorySupervision(Rics rics, Policies policies, A1Client a1Client, PolicyTypes policyTypes,
+        Services services) {
         this.rics = rics;
         this.policies = policies;
         this.a1Client = a1Client;
+        this.policyTypes = policyTypes;
+        this.services = services;
     }
 
     /**
@@ -61,50 +70,73 @@ public class RepositorySupervision {
     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));
+        synchronized (this.rics) {
+            return Flux.fromIterable(rics.getRics()) //
+                .flatMap(ric -> checkRicState(ric)) //
+                .flatMap(ric -> checkRicPolicies(ric)) //
+                .flatMap(ric -> checkRicPolicyTypes(ric));
+        }
     }
 
-    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 Mono<Ric> checkRicState(Ric ric) {
+        if (ric.state() == RicState.UNDEFINED) {
+            return startRecovery(ric);
+        } else if (ric.state() == RicState.RECOVERING) {
+            return Mono.empty();
+        } else {
+            return Mono.just(ric);
+        }
+    }
 
-            case NOT_REACHABLE:
-                return fluxGroup.flatMap(this::checkNotReachable);
+    private Mono<Ric> checkRicPolicies(Ric ric) {
+        return a1Client.getPolicyIdentities(ric.getConfig().baseUrl()) //
+            .onErrorResume(t -> Mono.empty()) //
+            .flatMap(ricP -> validateInstances(ricP, ric));
+    }
 
-            default:
-                // If not initiated, leave it to the StartupService.
-                return Flux.empty();
+    private Mono<Ric> validateInstances(Collection<String> ricPolicies, Ric ric) {
+        synchronized (this.policies) {
+            if (ricPolicies.size() != policies.getForRic(ric.name()).size()) {
+                return startRecovery(ric);
+            }
+        }
+        for (String policyId : ricPolicies) {
+            if (!policies.containsPolicy(policyId)) {
+                return startRecovery(ric);
+            }
         }
+        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();
-        return Mono.just(ric);
+    private Mono<Ric> checkRicPolicyTypes(Ric ric) {
+        return a1Client.getPolicyTypeIdentities(ric.getConfig().baseUrl()) //
+            .onErrorResume(t -> {
+                return Mono.empty();
+            }) //
+            .flatMap(ricTypes -> validateTypes(ricTypes, 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<Ric> validateTypes(Collection<String> ricTypes, Ric ric) {
+        if (ricTypes.size() != ric.getSupportedPolicyTypes().size()) {
+            return startRecovery(ric);
+        }
+        for (String typeName : ricTypes) {
+            if (!ric.isSupportingType(typeName)) {
+                return startRecovery(ric);
+            }
+        }
         return Mono.just(ric);
     }
 
+    private Mono<Ric> startRecovery(Ric ric) {
+        RicRecoveryTask recovery = new RicRecoveryTask(a1Client, policyTypes, policies, services);
+        recovery.run(ric);
+        return Mono.empty();
+    }
+
     private void onRicChecked(Ric ric) {
         logger.info("Ric: " + ric.name() + " checked");
     }