1 files changed, 60 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/trustlevel/dmiavailability/DMiPluginWatchDog.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/trustlevel/dmiavailability/DMiPluginWatchDog.java
new file mode 100644
index 000000000..dac32aa73
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/trustlevel/dmiavailability/DMiPluginWatchDog.java
@@ -0,0 +1,60 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 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.cps.ncmp.api.impl.trustlevel.dmiavailability;
+
+import com.hazelcast.map.IMap;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.ncmp.api.impl.client.DmiRestClient;
+import org.onap.cps.ncmp.api.impl.trustlevel.TrustLevel;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+@Slf4j
+@RequiredArgsConstructor
+@Service
+public class DMiPluginWatchDog {
+
+    private final IMap<String, TrustLevel> trustLevelPerDmiPlugin;
+
+    private final DmiRestClient dmiRestClient;
+
+    /**
+     * Monitors the aliveness of DMI plugins by this watchdog.
+     * This method periodically checks the health and status of each DMI plugin to ensure that
+     * they are functioning properly. If a plugin is found to be unresponsive or in an
+     * unhealthy state, the cache will be updated with the latest status.
+     * The @fixedDelayString is the time interval, in milliseconds, between consecutive aliveness checks.
+     */
+    @Scheduled(fixedDelayString = "${ncmp.timers.trust-evel.dmi-availability-watchdog-ms:30000}")
+    public void watchDmiPluginAliveness() {
+        trustLevelPerDmiPlugin.keySet().forEach((dmiPluginName) -> {
+            final DmiPluginStatus dmiPluginStatus = dmiRestClient.getDmiPluginStatus(dmiPluginName);
+            log.debug("Trust level for dmi-plugin: {} is {}", dmiPluginName, dmiPluginStatus.toString());
+            if (DmiPluginStatus.UP.equals(dmiPluginStatus)) {
+                trustLevelPerDmiPlugin.put(dmiPluginName, TrustLevel.COMPLETE);
+            } else {
+                trustLevelPerDmiPlugin.put(dmiPluginName, TrustLevel.NONE);
+            }
+        });
+    }
+
+}