Add Prometheus metric messages for ACM participants

Issue-ID: POLICY-4433
Change-Id: I625c9ee26bb2451e0dcfbb4bbf7288dcc0effb50
Signed-off-by: FrancescoFioraEst <francesco.fiora@est.tech>

3 files changed, 56 insertions, 4 deletions

diff --git a/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/acm/participant/policy/config/MicrometerConfig.java b/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/acm/participant/policy/config/MicrometerConfig.java
new file mode 100644
index 000000000..2f942eaa8
--- /dev/null
+++ b/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/acm/participant/policy/config/MicrometerConfig.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.acm.participant.policy.config;
+
+import io.micrometer.core.aop.TimedAspect;
+import io.micrometer.core.instrument.MeterRegistry;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.config.BeanPostProcessor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MicrometerConfig {
+
+    /**
+     * Load up the metrics registry.
+     */
+    @Bean
+    public InitializingBean forcePrometheusPostProcessor(BeanPostProcessor meterRegistryPostProcessor,
+            MeterRegistry registry) {
+        return () -> meterRegistryPostProcessor.postProcessAfterInitialization(registry, "");
+    }
+
+    @Bean
+    public TimedAspect timedAspect(MeterRegistry registry) {
+        return new TimedAspect(registry);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-policy/src/main/resources/config/application.yaml b/participant/participant-impl/participant-impl-policy/src/main/resources/config/application.yaml
index c3338a993..a1fea4d1b 100644
--- a/participant/participant-impl/participant-impl-policy/src/main/resources/config/application.yaml
+++ b/participant/participant-impl/participant-impl-policy/src/main/resources/config/application.yaml
@@ -3,6 +3,12 @@ spring:
     user:
       name: participantUser
       password: zb!XztG34
+  autoconfigure:
+    exclude:
+      - org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration
+      - org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
+      - org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration
+      - org.springframework.boot.autoconfigure.data.web.SpringDataWebAutoConfiguration
 
 participant:
   pdpGroup: defaultGroup
@@ -49,6 +55,7 @@ participant:
 management:
   endpoints:
     web:
+      base-path: /
       exposure:
         include: health, metrics, prometheus
 server:
diff --git a/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/acm/participant/policy/main/utils/CommonActuatorController.java b/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/acm/participant/policy/main/utils/CommonActuatorController.java
index f83184024..41f091cbf 100644
--- a/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/acm/participant/policy/main/utils/CommonActuatorController.java
+++ b/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/acm/participant/policy/main/utils/CommonActuatorController.java
@@ -40,8 +40,7 @@ import org.onap.policy.common.utils.network.NetworkUtil;
 public class CommonActuatorController {
 
     public static final String SELF = NetworkUtil.getHostname();
-    public static final String CONTEXT_PATH = "onap/policy/clamp/acm/policyparticipant";
-    public static final String ACTUATOR_ENDPOINT = CONTEXT_PATH + "/actuator/";
+    public static final String CONTEXT_PATH = "onap/policy/clamp/acm/policyparticipant/";
 
     private static String httpPrefix;
 
@@ -52,7 +51,7 @@ public class CommonActuatorController {
      * @return a request builder
      */
     protected Invocation.Builder sendActRequest(final String endpoint) {
-        return sendFqeRequest(httpPrefix + ACTUATOR_ENDPOINT + endpoint, true);
+        return sendFqeRequest(httpPrefix + CONTEXT_PATH + endpoint, true);
     }
 
     /**
@@ -62,7 +61,7 @@ public class CommonActuatorController {
      * @return a request builder
      */
     protected Invocation.Builder sendNoAuthActRequest(final String endpoint) {
-        return sendFqeRequest(httpPrefix + ACTUATOR_ENDPOINT + endpoint, false);
+        return sendFqeRequest(httpPrefix + CONTEXT_PATH + endpoint, false);
     }
 
     /**