Merge "Updates of the NBI"

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

diff --git a/policy-agent/src/main/java/org/oransc/policyagent/tasks/StartupService.java b/policy-agent/src/main/java/org/oransc/policyagent/tasks/StartupService.java
index 1fa0aa8..283e8ea 100644 (file)
--- a/policy-agent/src/main/java/org/oransc/policyagent/tasks/StartupService.java
+++ b/policy-agent/src/main/java/org/oransc/policyagent/tasks/StartupService.java
@@ -20,11 +20,10 @@
 
 package org.oransc.policyagent.tasks;
 
-import java.util.Vector;
-
-import org.oransc.policyagent.clients.RicClient;
+import org.oransc.policyagent.clients.A1Client;
 import org.oransc.policyagent.configuration.ApplicationConfig;
-import org.oransc.policyagent.configuration.RicConfig;
+import org.oransc.policyagent.exceptions.ServiceException;
+import org.oransc.policyagent.repository.ImmutablePolicyType;
 import org.oransc.policyagent.repository.PolicyType;
 import org.oransc.policyagent.repository.PolicyTypes;
 import org.oransc.policyagent.repository.Ric;
@@ -35,6 +34,9 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
 /**
  * Loads information about RealTime-RICs at startup.
  */
@@ -53,13 +55,13 @@ public class StartupService {
     PolicyTypes policyTypes;
 
     @Autowired
-    private RicClient ricClient;
+    private A1Client a1Client;
 
-    StartupService(ApplicationConfig appConfig, Rics rics, PolicyTypes policyTypes, RicClient ricClient) {
+    StartupService(ApplicationConfig appConfig, Rics rics, PolicyTypes policyTypes, A1Client a1Client) {
         this.applicationConfig = appConfig;
         this.rics = rics;
         this.policyTypes = policyTypes;
-        this.ricClient = ricClient;
+        this.a1Client = a1Client;
     }
 
     /**
@@ -67,22 +69,66 @@ public class StartupService {
      */
     public void startup() {
         applicationConfig.initialize();
-        Vector<RicConfig> ricConfigs = applicationConfig.getRicConfigs();
-        for (RicConfig ricConfig : ricConfigs) {
-            Ric ric = new Ric(ricConfig);
-            String baseUrl = ricConfig.baseUrl();
-            ricClient.deleteAllPolicies(baseUrl);
-            Vector<PolicyType> types = ricClient.getPolicyTypes(baseUrl);
-            for (PolicyType policyType : types) {
-                if (!policyTypes.contains(policyType)) {
-                    policyTypes.put(policyType);
-                }
+        Flux.fromIterable(applicationConfig.getRicConfigs()) //
+            .map(ricConfig -> new Ric(ricConfig)) //
+            .doOnNext(ric -> logger.debug("Handling ric: {}", ric.getConfig().name())) //
+            .flatMap(this::addPolicyTypesForRic) //
+            .flatMap(this::deletePoliciesForRic) //
+            .doOnNext(rics::put) //
+            .subscribe();
+    }
+
+    private Mono<Ric> addPolicyTypesForRic(Ric ric) {
+        a1Client.getPolicyTypeIdentities(ric.getConfig().baseUrl()) //
+            .doOnNext(typeId -> logger.debug("For ric: {}, handling type: {}", ric.getConfig().name(), typeId))
+            .flatMap((policyTypeId) -> addTypeToRepo(ric, policyTypeId)) //
+            .flatMap(type -> addTypeToRic(ric, type)) //
+            .subscribe(null, cause -> setRicToNotReachable(ric, cause), () -> setRicToActive(ric));
+        return Mono.just(ric);
+    }
+
+    private Mono<PolicyType> addTypeToRepo(Ric ric, String policyTypeId) {
+        if (policyTypes.contains(policyTypeId)) {
+            try {
+                return Mono.just(policyTypes.getType(policyTypeId));
+            } catch (ServiceException e) {
+                return Mono.error(e);
             }
-            ric.addSupportedPolicyTypes(types);
-            ric.setState(RicState.ACTIVE);
-            rics.put(ric);
         }
+        return a1Client.getPolicyType(ric.getConfig().baseUrl(), policyTypeId) //
+            .flatMap(schema -> createPolicyType(policyTypeId, schema));
+    }
+
+    private Mono<PolicyType> createPolicyType(String policyTypeId, String schema) {
+        PolicyType pt = ImmutablePolicyType.builder().name(policyTypeId).schema(schema).build();
+        policyTypes.put(pt);
+        return Mono.just(pt);
+    }
+
+    private Mono<PolicyType> addTypeToRic(Ric ric, PolicyType policyType) {
+        ric.addSupportedPolicyType(policyType);
+        return Mono.just(policyType);
+    }
+
+    private Mono<Ric> deletePoliciesForRic(Ric ric) {
+        if (!Ric.RicState.NOT_REACHABLE.equals(ric.state())) {
+            a1Client.getPolicyIdentities(ric.getConfig().baseUrl()) //
+                .doOnNext(
+                    policyId -> logger.debug("Deleting policy: {}, for ric: {}", policyId, ric.getConfig().name()))
+                .flatMap(policyId -> a1Client.deletePolicy(ric.getConfig().baseUrl(), policyId)) //
+                .subscribe(null, cause -> setRicToNotReachable(ric, cause), null);
+        }
+
+        return Mono.just(ric);
+    }
+
+    private void setRicToNotReachable(Ric ric, Throwable t) {
+        ric.setState(Ric.RicState.NOT_REACHABLE);
+        logger.info("Unable to connect to ric {}. Cause: {}", ric.name(), t.getMessage());
+    }
 
+    private void setRicToActive(Ric ric) {
+        ric.setState(RicState.ACTIVE);
     }
 
 }