rename metrics as per global constants for prometheus

Issue-ID: POLICY-3760
Signed-off-by: Rashmi Pujar <rashmi.pujar1@bell.ca>
Change-Id: I0fb59e8d9c95fd81a1754bb769705ef753b9022d

2 files changed, 45 insertions, 33 deletions

diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManager.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManager.java
index 277b23f06..d0be6492e 100644
--- a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManager.java
+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManager.java
@@ -25,7 +25,9 @@ package org.onap.policy.apex.service.engine.main;
 import io.prometheus.client.Counter;
 import java.util.concurrent.atomic.AtomicLong;
 import lombok.NoArgsConstructor;
+import org.onap.policy.common.utils.resources.PrometheusUtils;
 import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.pdp.enums.PdpResponseStatus;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -33,26 +35,14 @@ import org.slf4j.LoggerFactory;
 public class ApexPolicyStatisticsManager {
     private static final Logger LOGGER = LoggerFactory.getLogger(ApexPolicyStatisticsManager.class);
 
-    static final Counter POLICY_DEPLOY_REQUESTS_COUNTER = Counter.build()
-            .name("policies_deploy_requests_total")
-            .help("Total number of TOSCA policies deploy requests.").register();
-    static final Counter POLICY_DEPLOY_REQUESTS_SUCCESS_COUNTER = Counter.build()
-            .name("policies_deploy_requests_success")
-            .help("Total number of TOSCA policies deploy requests that succeeded.").register();
-    static final Counter POLICY_DEPLOY_REQUESTS_FAILED_COUNTER = Counter.build()
-            .name("policies_deploy_requests_failed")
-            .help("Total number of TOSCA policies deploy requests that failed.").register();
-    static final Counter POLICY_UNDEPLOY_REQUESTS_COUNTER = Counter.build()
-            .name("policies_undeploy_requests_total").help("Total number of TOSCA policies undeploy requests.")
-            .register();
-    static final Counter POLICY_UNDEPLOY_REQUESTS_SUCCESS_COUNTER = Counter.build()
-            .name("policies_undeploy_requests_success")
-            .help("Total number of TOSCA policies undeploy requests that succeeded.").register();
-    static final Counter POLICY_UNDEPLOY_REQUESTS_FAILED_COUNTER = Counter.build()
-            .name("policies_undeploy_requests_failed")
-            .help("Total number of TOSCA policies undeploy requests that failed.").register();
+    static final Counter POLICY_DEPLOYMENTS_COUNTER =
+        Counter.build().namespace(PrometheusUtils.PdpType.PDPA.getNamespace())
+            .name(PrometheusUtils.POLICY_DEPLOYMENTS_METRIC)
+            .labelNames(PrometheusUtils.OPERATION_METRIC_LABEL, PrometheusUtils.STATUS_METRIC_LABEL)
+            .help(PrometheusUtils.POLICY_DEPLOYMENT_HELP).register();
 
     public static final String REG_APEX_PDP_POLICY_COUNTER = "object:pdp/statistics/policy/counter";
+    private static final String PROMETHEUS_TOTAL_LABEL_VALUE = "TOTAL";
 
     private final AtomicLong policyDeployCount = new AtomicLong(0);
     private final AtomicLong policyDeploySuccessCount = new AtomicLong(0);
@@ -79,19 +69,18 @@ public class ApexPolicyStatisticsManager {
         return instance;
     }
 
-
     /**
      * Update the policy deploy count.
      */
     public void updatePolicyDeployCounter(final boolean isSuccessful) {
+        POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.DEPLOY_OPERATION, PROMETHEUS_TOTAL_LABEL_VALUE).inc();
         this.policyDeployCount.incrementAndGet();
-        POLICY_DEPLOY_REQUESTS_COUNTER.inc();
         if (!isSuccessful) {
+            POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.DEPLOY_OPERATION, PdpResponseStatus.FAIL.name()).inc();
             this.policyDeployFailCount.incrementAndGet();
-            POLICY_DEPLOY_REQUESTS_FAILED_COUNTER.inc();
         } else {
+            POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.DEPLOY_OPERATION, PdpResponseStatus.SUCCESS.name()).inc();
             this.policyDeploySuccessCount.incrementAndGet();
-            POLICY_DEPLOY_REQUESTS_SUCCESS_COUNTER.inc();
         }
     }
 
@@ -107,32 +96,32 @@ public class ApexPolicyStatisticsManager {
         }
     }
 
-
     /**
      * Update the policy undeploy count.
      */
     public void updatePolicyUndeployCounter(final boolean isSuccessful) {
+        POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.UNDEPLOY_OPERATION, PROMETHEUS_TOTAL_LABEL_VALUE).inc();
         this.policyUndeployCount.incrementAndGet();
-        POLICY_UNDEPLOY_REQUESTS_COUNTER.inc();
         if (isSuccessful) {
+            POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.UNDEPLOY_OPERATION, PdpResponseStatus.SUCCESS.name())
+                .inc();
             this.policyUndeploySuccessCount.incrementAndGet();
-            POLICY_UNDEPLOY_REQUESTS_SUCCESS_COUNTER.inc();
         } else {
+            POLICY_DEPLOYMENTS_COUNTER.labels(PrometheusUtils.UNDEPLOY_OPERATION, PdpResponseStatus.FAIL.name()).inc();
             this.policyUndeployFailCount.incrementAndGet();
-            POLICY_UNDEPLOY_REQUESTS_FAILED_COUNTER.inc();
         }
     }
 
     public long getPolicyDeployCount() {
-        return Double.valueOf(POLICY_DEPLOY_REQUESTS_COUNTER.get()).longValue();
+        return policyDeployCount.get();
     }
 
     public long getPolicyDeployFailCount() {
-        return Double.valueOf(POLICY_DEPLOY_REQUESTS_FAILED_COUNTER.get()).longValue();
+        return policyDeployFailCount.get();
     }
 
     public long getPolicyDeploySuccessCount() {
-        return Double.valueOf(POLICY_DEPLOY_REQUESTS_SUCCESS_COUNTER.get()).longValue();
+        return policyDeploySuccessCount.get();
     }
 
     public long getPolicyExecutedCount() {
@@ -148,14 +137,14 @@ public class ApexPolicyStatisticsManager {
     }
 
     public long getPolicyUndeployCount() {
-        return Double.valueOf(POLICY_UNDEPLOY_REQUESTS_COUNTER.get()).longValue();
+        return policyUndeployCount.get();
     }
 
     public long getPolicyUndeploySuccessCount() {
-        return Double.valueOf(POLICY_UNDEPLOY_REQUESTS_SUCCESS_COUNTER.get()).longValue();
+        return policyUndeploySuccessCount.get();
     }
 
     public long getPolicyUndeployFailCount() {
-        return Double.valueOf(POLICY_UNDEPLOY_REQUESTS_FAILED_COUNTER.get()).longValue();
+        return policyUndeployFailCount.get();
     }
 }
\ No newline at end of file
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManagerTest.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManagerTest.java
index a63cea5eb..6213cae1f 100644
--- a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManagerTest.java
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/main/ApexPolicyStatisticsManagerTest.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2021 Nordix Foundation.
- *  Modifications Copyright (C) 2021 Bell Canada Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2021-2022 Bell Canada. 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.
@@ -23,8 +23,10 @@ package org.onap.policy.apex.service.engine.main;
 
 import static org.junit.Assert.assertEquals;
 
+import io.prometheus.client.CollectorRegistry;
 import org.junit.Before;
 import org.junit.Test;
+import org.onap.policy.common.utils.resources.PrometheusUtils;
 
 public class ApexPolicyStatisticsManagerTest {
 
@@ -46,6 +48,7 @@ public class ApexPolicyStatisticsManagerTest {
         statisticsManager.updatePolicyDeployCounter(true);
         statisticsManager.updatePolicyDeployCounter(true);
         assertDeploys(3, 2, 1);
+        checkDeploymentsMetrics("deploy");
     }
 
     @Test
@@ -64,6 +67,7 @@ public class ApexPolicyStatisticsManagerTest {
 
         statisticsManager.updatePolicyUndeployCounter(true);
         assertUndeploys(2, 1, 1);
+        checkDeploymentsMetrics("undeploy");
     }
 
     private void assertDeploys(long count, long success, long fail) {
@@ -84,4 +88,23 @@ public class ApexPolicyStatisticsManagerTest {
         assertEquals(fail, statisticsManager.getPolicyExecutedFailCount());
     }
 
+    private void checkDeploymentsMetrics(String operation) {
+        final var defaultRegistry = CollectorRegistry.defaultRegistry;
+        Double totalCount = defaultRegistry.getSampleValue("pdpa_policy_deployments_total",
+            new String[]{"operation", "status"}, new String[]{operation, "TOTAL"});
+        Double successCount = defaultRegistry.getSampleValue("pdpa_policy_deployments_total",
+            new String[]{"operation", "status"}, new String[]{operation, "SUCCESS"});
+        Double failCount = defaultRegistry.getSampleValue("pdpa_policy_deployments_total",
+            new String[]{"operation", "status"}, new String[]{operation, "FAIL"});
+
+        if (PrometheusUtils.DEPLOY_OPERATION.equals(operation)) {
+            assertEquals(totalCount.intValue(), statisticsManager.getPolicyDeployCount());
+            assertEquals(successCount.intValue(), statisticsManager.getPolicyDeploySuccessCount());
+            assertEquals(failCount.intValue(), statisticsManager.getPolicyDeployFailCount());
+        } else if (PrometheusUtils.UNDEPLOY_OPERATION.equals(operation)) {
+            assertEquals(totalCount.intValue(), statisticsManager.getPolicyUndeployCount());
+            assertEquals(successCount.intValue(), statisticsManager.getPolicyUndeploySuccessCount());
+            assertEquals(failCount.intValue(), statisticsManager.getPolicyUndeployFailCount());
+        }
+    }
 }
\ No newline at end of file