block status operations until controllers ready

Status messages to the PAP won't be send until
all mandatory resources specified in the
lifecycle.pdp.policytypes property are functional.

Issue-ID: POLICY-2669
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Change-Id: Ia9d4c678fcfbdb232059d0827235845ee11f1201
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>

3 files changed, 49 insertions, 22 deletions

diff --git a/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties b/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties
index 076da1f9..b495664d 100644
--- a/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties
+++ b/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties
@@ -1,7 +1,7 @@
 # ============LICENSE_START=======================================================
 # ONAP
 # ================================================================================
-# Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+# Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,6 +18,9 @@
 
 lifecycle.pdp.group=${envd:POLICY_PDP_PAP_GROUP:defaultGroup}
 
+# Mandatory policy types that this PDP-D must support at a minimum
+lifecycle.pdp.policytypes=${envd:POLICY_PDP_PAP_POLICYTYPES}
+
 dmaap.source.topics=POLICY-PDP-PAP
 dmaap.sink.topics=POLICY-PDP-PAP
 
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java
index 319770bd..a45f2b4e 100644
--- a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java
@@ -22,10 +22,12 @@ package org.onap.policy.drools.lifecycle;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Properties;
+import java.util.Set;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.ScheduledThreadPoolExecutor;
@@ -77,6 +79,7 @@ public class LifecycleFsm implements Startable {
 
     protected static final String CONFIGURATION_PROPERTIES_NAME = "feature-lifecycle";
     protected static final String GROUP_NAME = "lifecycle.pdp.group";
+    protected static final String MANDATORY_POLICY_TYPES = "lifecycle.pdp.policytypes";
     protected static final String DEFAULT_PDP_GROUP = "defaultGroup";
     protected static final long MIN_STATUS_INTERVAL_SECONDS = 5L;
     protected static final String PDP_MESSAGE_NAME = "messageName";
@@ -129,6 +132,9 @@ public class LifecycleFsm implements Startable {
     protected String subgroup;
 
     @Getter
+    protected Set<String> mandatoryPolicyTypes = new HashSet<>();
+
+    @Getter
     protected final Map<ToscaPolicyTypeIdentifier, PolicyTypeController> policyTypesMap = new HashMap<>();
 
     @Getter
@@ -146,6 +152,16 @@ public class LifecycleFsm implements Startable {
         this.policyTypesMap.put(
                 POLICY_TYPE_DROOLS_NATIVE_RULES,
                  new PolicyTypeNativeArtifactController(this, POLICY_TYPE_DROOLS_NATIVE_RULES));
+
+        String commaSeparatedPolicyTypes = this.properties.getProperty(MANDATORY_POLICY_TYPES);
+        if (!StringUtils.isBlank(commaSeparatedPolicyTypes)) {
+            for (String mpt: commaSeparatedPolicyTypes.split("\\s*,\\s*")) {
+                this.mandatoryPolicyTypes.add(mpt);
+            }
+        }
+
+        logger.info("The mandatory Policy Types are {}. Compliance is {}",
+                this.mandatoryPolicyTypes, this.isMandatoryPolicyTypesCompliant());
     }
 
     @GsonJsonIgnore
@@ -165,6 +181,7 @@ public class LifecycleFsm implements Startable {
         return state.state();
     }
 
+
     /* ** FSM events - entry points of events into the FSM ** */
 
     @Override
@@ -184,14 +201,12 @@ public class LifecycleFsm implements Startable {
         }
 
         for (ToscaPolicyTypeIdentifier id : controller.getPolicyTypes()) {
-            if (isToscaPolicyType(id.getName())) {
-                PolicyTypeDroolsController ptDroolsController = (PolicyTypeDroolsController) policyTypesMap.get(id);
-                if (ptDroolsController == null) {
-                    policyTypesMap.put(id, new PolicyTypeDroolsController(this, id, controller));
-                    logger.info("policy-type {} added", id);
-                } else {
-                    ptDroolsController.add(controller);
-                }
+            PolicyTypeDroolsController ptDc = (PolicyTypeDroolsController) policyTypesMap.get(id); //NOSONAR
+            if (ptDc == null) {
+                policyTypesMap.put(id, new PolicyTypeDroolsController(this, id, controller));
+                logger.info("policy-type {} added", id);
+            } else {
+                ptDc.add(controller);
             }
         }
     }
@@ -329,10 +344,6 @@ public class LifecycleFsm implements Startable {
         return stopTimers() && startTimers();
     }
 
-    protected PolicyTypeController getController(ToscaPolicyTypeIdentifier policyType) {
-        return policyTypesMap.get(policyType);
-    }
-
     protected List<ToscaPolicy> getDeployablePoliciesAction(@NonNull List<ToscaPolicy> policies) {
         List<ToscaPolicy> deployPolicies = new ArrayList<>(policies);
         deployPolicies.removeAll(policiesMap.values());
@@ -363,6 +374,22 @@ public class LifecycleFsm implements Startable {
         return (this.scheduler.submit(() -> state.updatePolicies(toscaPolicies)) != null);
     }
 
+    protected PolicyTypeController getController(ToscaPolicyTypeIdentifier policyType) {
+        return policyTypesMap.get(policyType);
+    }
+
+    /**
+     * Do I support the mandatory policy types?.
+     */
+    protected boolean isMandatoryPolicyTypesCompliant() {
+        return getCurrentPolicyTypes().containsAll(getMandatoryPolicyTypes());
+    }
+
+    protected Set<String> getCurrentPolicyTypes() {
+        return getPolicyTypesMap().keySet().stream()
+                       .map(ToscaPolicyTypeIdentifier::getName).collect(Collectors.toSet());
+    }
+
     /* ** Action Helpers ** */
 
     private boolean startIo() {
@@ -444,11 +471,6 @@ public class LifecycleFsm implements Startable {
         return this.client.getSink().start();
     }
 
-    protected boolean isToscaPolicyType(String domain) {
-        // HACK: until legacy controllers support is removed
-        return StringUtils.countMatches(domain, ".") > 1;
-    }
-
     protected boolean isItMe(String name, String group, String subgroup) {
         if (Objects.equals(name, getName())) {
             return true;
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateRunning.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateRunning.java
index 503c0c11..cf13c46d 100644
--- a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateRunning.java
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateRunning.java
@@ -79,11 +79,13 @@ public abstract class LifecycleStateRunning extends LifecycleStateDefault {
     @Override
     public boolean status() {
         synchronized (fsm) {
-            if (fsm.getPolicyTypesMap().isEmpty()) {
-                return true;
-            } else {
-                return fsm.statusAction();
+            if (!fsm.isMandatoryPolicyTypesCompliant()) {
+                logger.info("Not all expected policy types are registered yet, current={}, expected={}",
+                        fsm.getCurrentPolicyTypes(), fsm.getMandatoryPolicyTypes());
+                return false;
             }
+
+            return fsm.statusAction();
         }
     }