Add 'Deleted' cm handle state for gauge

Issue-ID: CPS-2456
Change-Id: I2f7ff2dd18d164dbf685269fb2d2e47d08c3c5f5
Signed-off-by: emaclee <lee.anjella.macabuhay@est.tech>

2 files changed, 21 insertions, 5 deletions

diff --git a/cps-application/src/main/java/org/onap/cps/config/MicroMeterConfig.java b/cps-application/src/main/java/org/onap/cps/config/MicroMeterConfig.java
index de981164f5..d169c61ad6 100644
--- a/cps-application/src/main/java/org/onap/cps/config/MicroMeterConfig.java
+++ b/cps-application/src/main/java/org/onap/cps/config/MicroMeterConfig.java
@@ -52,7 +52,7 @@ public class MicroMeterConfig {
         return Gauge.builder(CM_HANDLE_STATE_GAUGE, cmHandlesByState,
                         value -> cmHandlesByState.get("advisedCmHandlesCount"))
                 .tag(STATE_TAG, "ADVISED")
-                .description("Current number of cmhandles in advised state")
+                .description("Current number of cm handles in advised state")
                 .register(meterRegistry);
     }
 
@@ -67,7 +67,7 @@ public class MicroMeterConfig {
         return Gauge.builder(CM_HANDLE_STATE_GAUGE, cmHandlesByState,
                         value -> cmHandlesByState.get("readyCmHandlesCount"))
                 .tag(STATE_TAG, "READY")
-                .description("Current number of cmhandles in ready state")
+                .description("Current number of cm handles in ready state")
                 .register(meterRegistry);
     }
 
@@ -82,7 +82,7 @@ public class MicroMeterConfig {
         return Gauge.builder(CM_HANDLE_STATE_GAUGE, cmHandlesByState,
                 value -> cmHandlesByState.get("lockedCmHandlesCount"))
                 .tag(STATE_TAG, "LOCKED")
-                .description("Current number of cmhandles in locked state")
+                .description("Current number of cm handles in locked state")
                 .register(meterRegistry);
     }
 
@@ -97,7 +97,22 @@ public class MicroMeterConfig {
         return Gauge.builder(CM_HANDLE_STATE_GAUGE, cmHandlesByState,
                         value -> cmHandlesByState.get("deletingCmHandlesCount"))
                 .tag(STATE_TAG, "DELETING")
-                .description("Current number of cmhandles in deleting state")
+                .description("Current number of cm handles in deleting state")
+                .register(meterRegistry);
+    }
+
+    /**
+     * Register gauge metric for cm handles with state 'deleted'.
+     *
+     * @param meterRegistry meter registry
+     * @return cm handle state gauge
+     */
+    @Bean
+    public Gauge deletedCmHandles(final MeterRegistry meterRegistry) {
+        return Gauge.builder(CM_HANDLE_STATE_GAUGE, cmHandlesByState,
+                        value -> cmHandlesByState.get("deletedCmHandlesCount"))
+                .tag(STATE_TAG, "DELETED")
+                .description("Number of cm handles that have been deleted since the application started")
                 .register(meterRegistry);
     }
 
diff --git a/cps-application/src/test/groovy/org/onap/cps/config/MicroMeterConfigSpec.groovy b/cps-application/src/test/groovy/org/onap/cps/config/MicroMeterConfigSpec.groovy
index 9cef8de4b7..fc8c670ebf 100644
--- a/cps-application/src/test/groovy/org/onap/cps/config/MicroMeterConfigSpec.groovy
+++ b/cps-application/src/test/groovy/org/onap/cps/config/MicroMeterConfigSpec.groovy
@@ -43,8 +43,9 @@ class MicroMeterConfigSpec extends Specification {
              objectUnderTest.readyCmHandles(simpleMeterRegistry)
              objectUnderTest.lockedCmHandles(simpleMeterRegistry)
              objectUnderTest.deletingCmHandles(simpleMeterRegistry)
+             objectUnderTest.deletedCmHandles(simpleMeterRegistry)
         then: 'each state has the correct value when queried'
-            ['ADVISED', 'READY', 'LOCKED', 'DELETING'].each { state ->
+            ['ADVISED', 'READY', 'LOCKED', 'DELETING', 'DELETED'].each { state ->
                 def gaugeValue = simpleMeterRegistry.get('cmHandlesByState').tag('state',state).gauge().value()
                 assert gaugeValue == 1
             }