Added supervision of producers

[nonrtric.git] / enrichment-coordinator-service / src / main / java / org / oransc / enrichment / tasks / ProducerSupervision.java

diff --git a/enrichment-coordinator-service/src/main/java/org/oransc/enrichment/tasks/ProducerSupervision.java b/enrichment-coordinator-service/src/main/java/org/oransc/enrichment/tasks/ProducerSupervision.java
new file mode 100644 (file)
index 0000000..3b62fa7
--- /dev/null
+++ b/enrichment-coordinator-service/src/main/java/org/oransc/enrichment/tasks/ProducerSupervision.java
@@ -0,0 +1,98 @@
+/*-
+ * ========================LICENSE_START=================================
+ * ONAP : ccsdk oran
+ * ======================================================================
+ * Copyright (C) 2020 Nordix Foundation. 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.
+ * 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.
+ * ========================LICENSE_END===================================
+ */
+
+package org.oransc.enrichment.tasks;
+
+import org.oransc.enrichment.clients.AsyncRestClient;
+import org.oransc.enrichment.configuration.ApplicationConfig;
+import org.oransc.enrichment.repository.EiJobs;
+import org.oransc.enrichment.repository.EiProducer;
+import org.oransc.enrichment.repository.EiProducers;
+import org.oransc.enrichment.repository.EiTypes;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+/**
+ * Regularly checks the availability of the EI Producers
+ */
+@Component
+@EnableScheduling
+@SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
+public class ProducerSupervision {
+    private static final Logger logger = LoggerFactory.getLogger(ProducerSupervision.class);
+
+    @Autowired
+    ApplicationConfig applicationConfig;
+
+    @Autowired
+    EiProducers eiProducers;
+
+    @Autowired
+    EiJobs eiJobs;
+
+    @Autowired
+    EiTypes eiTypes;
+
+    @Scheduled(fixedRate = 1000 * 60 * 5)
+    public void checkAllProducers() {
+        logger.debug("Checking producers starting");
+        createTask().subscribe(null, null, () -> logger.debug("Checking all Producers completed"));
+    }
+
+    public Flux<EiProducer> createTask() {
+        return Flux.fromIterable(eiProducers.getAllProducers()) //
+            .flatMap(this::checkOneProducer);
+    }
+
+    private Mono<EiProducer> checkOneProducer(EiProducer producer) {
+        return restClient().get(producer.getProducerSupervisionCallbackUrl()) //
+            .onErrorResume(throwable -> {
+                handleNonRespondingProducer(throwable, producer);
+                return Mono.empty();
+            })//
+            .doOnNext(response -> handleRespondingProducer(response, producer))
+            .flatMap(response -> Mono.just(producer));
+    }
+
+    private void handleNonRespondingProducer(Throwable throwable, EiProducer producer) {
+        logger.warn("Unresponsive producer: {} exception: {}", producer.getId(), throwable.getMessage());
+        producer.setAliveStatus(false);
+        if (producer.isDead()) {
+            this.eiProducers.deregisterProducer(producer, this.eiTypes, this.eiJobs);
+        }
+    }
+
+    private void handleRespondingProducer(String response, EiProducer producer) {
+        logger.debug("{}", response);
+        producer.setAliveStatus(true);
+    }
+
+    private AsyncRestClient restClient() {
+        return new AsyncRestClient("", this.applicationConfig.getWebClientConfig());
+    }
+
+}