Populate the PdpStatistics data in heartbeat

Apex to populate the PdpStatistics data in every heartbeat sent to PAP

Issue-ID: POLICY-2302
Change-Id: I2d3a6c1e8605d53bf754a135980527bd50762abd
Signed-off-by: shaoqiu <tim.huang@est.tech>

5 files changed, 122 insertions, 6 deletions

diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/ApexStarterMain.java b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/ApexStarterMain.java
index 2a3031a4a..4a5fb360e 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/ApexStarterMain.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/ApexStarterMain.java
@@ -1,8 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  *  Modifications Copyright (C) 2019 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.
@@ -23,6 +22,7 @@
 package org.onap.policy.apex.services.onappf;
 
 import java.util.Arrays;
+import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
 import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
 import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterGroup;
 import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterHandler;
@@ -79,6 +79,7 @@ public class ApexStarterMain {
         // create the activator
         activator = new ApexStarterActivator(parameterGroup);
         Registry.register(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR, activator);
+        Registry.register(ApexPolicyStatisticsManager.REG_APEX_PDP_POLICY_COUNTER, new ApexPolicyStatisticsManager());
         // Start the activator
         try {
             activator.initialize();
@@ -117,6 +118,8 @@ public class ApexStarterMain {
         if (activator != null && activator.isAlive()) {
             activator.terminate();
         }
+
+        Registry.unregister(ApexPolicyStatisticsManager.REG_APEX_PDP_POLICY_COUNTER);
     }
 
     /**
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/ApexEngineHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/ApexEngineHandler.java
index 6a5bb17ff..8150ff9c5 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/ApexEngineHandler.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/ApexEngineHandler.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,6 +30,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
+import org.onap.policy.apex.model.enginemodel.concepts.AxEngineModel;
 import org.onap.policy.apex.service.engine.main.ApexMain;
 import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
 import org.onap.policy.common.utils.coder.CoderException;
@@ -130,6 +131,17 @@ public class ApexEngineHandler {
     }
 
     /**
+     * Method to get the APEX engine statistics.
+     */
+    public List<AxEngineModel> getEngineStats() {
+        List<AxEngineModel> engineStats = null;
+        if (null != apexMain && apexMain.isAlive()) {
+            engineStats = apexMain.getEngineStats();
+        }
+        return engineStats;
+    }
+
+    /**
      * Method to check whether the apex engine is running or not.
      */
     public boolean isApexEngineRunning() {
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpMessageHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpMessageHandler.java
index 697f3d47f..e82e34755 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpMessageHandler.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpMessageHandler.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,19 +21,30 @@
 package org.onap.policy.apex.services.onappf.handler;
 
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
+import lombok.NonNull;
+import org.onap.policy.apex.model.enginemodel.concepts.AxEngineModel;
+import org.onap.policy.apex.model.enginemodel.concepts.AxEngineState;
+import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
 import org.onap.policy.apex.services.onappf.ApexStarterConstants;
 import org.onap.policy.apex.services.onappf.parameters.PdpStatusParameters;
 import org.onap.policy.apex.services.onappf.parameters.ToscaPolicyTypeIdentifierParameters;
 import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.pdp.concepts.PdpEngineWorkerStatistics;
 import org.onap.policy.models.pdp.concepts.PdpResponseDetails;
+import org.onap.policy.models.pdp.concepts.PdpStatistics;
 import org.onap.policy.models.pdp.concepts.PdpStatus;
+import org.onap.policy.models.pdp.enums.PdpEngineWorkerState;
 import org.onap.policy.models.pdp.enums.PdpHealthStatus;
 import org.onap.policy.models.pdp.enums.PdpResponseStatus;
 import org.onap.policy.models.pdp.enums.PdpState;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 
 /**
  * This class supports the handling of pdp messages.
@@ -41,6 +52,7 @@ import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifi
  * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
  */
 public class PdpMessageHandler {
+    private static final Logger LOGGER = LoggerFactory.getLogger(PdpMessageHandler.class);
 
     /**
      * Method to create PdpStatus message from the parameters which will be saved to the context.
@@ -96,10 +108,84 @@ public class PdpMessageHandler {
         pdpStatus.setPolicies(pdpStatusContext.getPolicies());
         pdpStatus.setPdpGroup(pdpStatusContext.getPdpGroup());
         pdpStatus.setPdpSubgroup(pdpStatusContext.getPdpSubgroup());
+
+        ApexEngineHandler apexEngineHandler = null;
+        try {
+            apexEngineHandler = Registry.get(ApexStarterConstants.REG_APEX_ENGINE_HANDLER);
+        } catch (IllegalArgumentException e) {
+            LOGGER.warn(e.getMessage());
+        }
+
+        pdpStatus.setStatistics(getStatistics(pdpStatus, apexEngineHandler));
+
+
         return pdpStatus;
     }
 
     /**
+     * Method to get the statistics.
+     *
+     * @return PdpStatistics the pdp status message
+     */
+
+    private PdpStatistics getStatistics(final PdpStatus pdpStatusContext, final ApexEngineHandler apexEngineHandler) {
+        PdpStatistics pdpStatistics = new PdpStatistics();
+        pdpStatistics.setPdpInstanceId(pdpStatusContext.getName());
+        pdpStatistics.setTimeStamp(new Date());
+        pdpStatistics.setPdpGroupName(pdpStatusContext.getPdpGroup());
+        pdpStatistics.setPdpSubGroupName(pdpStatusContext.getPdpSubgroup());
+        if (apexEngineHandler != null) {
+            pdpStatistics.setEngineStats(getEngineWorkerStats(apexEngineHandler));
+        }
+        final ApexPolicyStatisticsManager apexPolicyCounter = ApexPolicyStatisticsManager.getInstanceFromRegistry();
+        if (apexPolicyCounter != null) {
+            pdpStatistics.setPolicyDeploySuccessCount(apexPolicyCounter.getPolicyDeploySuccessCount());
+            pdpStatistics.setPolicyDeployFailCount(apexPolicyCounter.getPolicyDeployFailCount());
+            pdpStatistics.setPolicyDeployCount(apexPolicyCounter.getPolicyDeployCount());
+            pdpStatistics.setPolicyExecutedCount(apexPolicyCounter.getPolicyExecutedCount());
+            pdpStatistics.setPolicyExecutedSuccessCount(apexPolicyCounter.getPolicyExecutedSuccessCount());
+            pdpStatistics.setPolicyExecutedFailCount(apexPolicyCounter.getPolicyExecutedFailCount());
+        }
+        return pdpStatistics;
+    }
+
+    private List<PdpEngineWorkerStatistics> getEngineWorkerStats(@NonNull final ApexEngineHandler apexEngineHandler) {
+        List<PdpEngineWorkerStatistics> pdpEngineWorkerStats = new ArrayList<>();
+        List<AxEngineModel> engineModels = apexEngineHandler.getEngineStats();
+        if (engineModels != null) {
+            engineModels.forEach(engineModel -> {
+                PdpEngineWorkerStatistics workerStatistics = new PdpEngineWorkerStatistics();
+                workerStatistics.setEngineWorkerState(transferEngineState(engineModel.getState()));
+                workerStatistics.setEngineId(engineModel.getId());
+                workerStatistics.setEventCount(engineModel.getStats().getEventCount());
+                workerStatistics.setAverageExecutionTime(engineModel.getStats().getAverageExecutionTime());
+                workerStatistics.setEngineTimeStamp(engineModel.getStats().getTimeStamp());
+                workerStatistics.setLastEnterTime(engineModel.getStats().getLastEnterTime());
+                workerStatistics.setLastExecutionTime(engineModel.getStats().getLastExecutionTime());
+                workerStatistics.setLastStart(engineModel.getStats().getLastStart());
+                workerStatistics.setUpTime(engineModel.getStats().getUpTime());
+                pdpEngineWorkerStats.add(workerStatistics);
+            });
+        }
+        return pdpEngineWorkerStats;
+    }
+
+    private PdpEngineWorkerState transferEngineState(@NonNull final AxEngineState state) {
+        switch (state) {
+            case STOPPING:
+                return PdpEngineWorkerState.STOPPING;
+            case STOPPED:
+                return PdpEngineWorkerState.STOPPED;
+            case READY:
+                return PdpEngineWorkerState.READY;
+            case EXECUTING:
+                return PdpEngineWorkerState.EXECUTING;
+            default:
+                return PdpEngineWorkerState.UNDEFINED;
+        }
+    }
+
+    /**
      * Method to get a final pdp status when the apex started is shutting down.
      *
      * @return PdpStatus the pdp status message
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpStateChangeMessageHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpStateChangeMessageHandler.java
index fd95b47b7..46d04f63f 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpStateChangeMessageHandler.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpStateChangeMessageHandler.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ package org.onap.policy.apex.services.onappf.handler;
 
 import java.util.HashSet;
 import java.util.List;
+import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
 import org.onap.policy.apex.services.onappf.ApexStarterConstants;
 import org.onap.policy.apex.services.onappf.comm.PdpStatusPublisher;
 import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
@@ -145,6 +146,12 @@ public class PdpStateChangeMessageHandler {
             pdpResponseDetails = pdpMessageHandler.createPdpResonseDetails(pdpStateChangeMsg.getRequestId(),
                     PdpResponseStatus.FAIL, "Apex engine service running failed. " + e.getMessage());
         }
+        final ApexPolicyStatisticsManager apexPolicyStatisticsManager =
+                ApexPolicyStatisticsManager.getInstanceFromRegistry();
+        if (apexPolicyStatisticsManager != null) {
+            apexPolicyStatisticsManager
+                    .updatePolicyDeployCounter(pdpResponseDetails.getResponseStatus() == PdpResponseStatus.SUCCESS);
+        }
         return pdpResponseDetails;
     }
 
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpUpdateMessageHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpUpdateMessageHandler.java
index 33ac81f5d..aa5a6457e 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpUpdateMessageHandler.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/services/onappf/handler/PdpUpdateMessageHandler.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ package org.onap.policy.apex.services.onappf.handler;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
+import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
 import org.onap.policy.apex.services.onappf.ApexStarterConstants;
 import org.onap.policy.apex.services.onappf.comm.PdpStatusPublisher;
 import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
@@ -160,6 +161,7 @@ public class PdpUpdateMessageHandler {
     private PdpResponseDetails startApexEngineBasedOnPolicies(final PdpUpdate pdpUpdateMsg,
         final PdpMessageHandler pdpMessageHandler, ApexEngineHandler apexEngineHandler) {
         PdpResponseDetails pdpResponseDetails = null;
+
         try {
             if (null != apexEngineHandler && apexEngineHandler.isApexEngineRunning()) {
                 apexEngineHandler.updateApexEngine(pdpUpdateMsg.getPolicies());
@@ -192,6 +194,12 @@ public class PdpUpdateMessageHandler {
             pdpResponseDetails = pdpMessageHandler.createPdpResonseDetails(pdpUpdateMsg.getRequestId(),
                     PdpResponseStatus.FAIL, "Apex engine service running failed. " + e.getMessage());
         }
+        final ApexPolicyStatisticsManager apexPolicyStatisticsManager =
+                ApexPolicyStatisticsManager.getInstanceFromRegistry();
+        if (apexPolicyStatisticsManager != null) {
+            apexPolicyStatisticsManager
+                    .updatePolicyDeployCounter(pdpResponseDetails.getResponseStatus() == PdpResponseStatus.SUCCESS);
+        }
         return pdpResponseDetails;
     }