1 files changed, 108 insertions, 0 deletions
diff --git a/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/tasks/ScheduledTasksRunner.java b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/tasks/ScheduledTasksRunner.java
new file mode 100644
index 00000000..956ffead
--- /dev/null
+++ b/prh-app-server/src/main/java/org/onap/dcaegen2/services/prh/tasks/ScheduledTasksRunner.java
@@ -0,0 +1,108 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.onap.dcaegen2.services.prh.tasks;
+
+import io.swagger.annotations.ApiOperation;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ScheduledFuture;
+import javax.annotation.PostConstruct;
+
+import org.onap.dcaegen2.services.prh.configuration.CloudConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.Marker;
+import org.slf4j.MarkerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.scheduling.TaskScheduler;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import reactor.core.publisher.Mono;
+
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 6/13/18
+ */
+@Configuration
+@EnableScheduling
+public class ScheduledTasksRunner {
+
+    private static final int SCHEDULING_DELAY_FOR_PRH_TASKS = 10;
+    private static final int SCHEDULING_REQUEST_FOR_CONFIGURATION_DELAY = 5;
+    private static final Logger LOGGER = LoggerFactory.getLogger(ScheduledTasksRunner.class);
+    private static final Marker ENTRY = MarkerFactory.getMarker("ENTRY");
+    private static volatile List<ScheduledFuture> scheduledPrhTaskFutureList = new ArrayList<>();
+
+    private final TaskScheduler taskScheduler;
+    private final ScheduledTasks scheduledTask;
+    private final CloudConfiguration cloudConfiguration;
+
+    @Autowired
+    public ScheduledTasksRunner(TaskScheduler taskScheduler,
+                                ScheduledTasks scheduledTask,
+                                CloudConfiguration cloudConfiguration) {
+        this.taskScheduler = taskScheduler;
+        this.scheduledTask = scheduledTask;
+        this.cloudConfiguration = cloudConfiguration;
+    }
+
+    /**
+     * Function which have to stop tasks execution.
+     *
+     * @return response entity about status of cancellation operation
+     */
+    @ApiOperation(value = "Get response on stopping task execution")
+    public synchronized Mono<ResponseEntity<String>> getResponseFromCancellationOfTasks() {
+        scheduledPrhTaskFutureList.forEach(x -> x.cancel(false));
+        scheduledPrhTaskFutureList.clear();
+        return Mono.defer(() ->
+            Mono.just(new ResponseEntity<>("PRH Service has already been stopped!", HttpStatus.CREATED))
+        );
+    }
+
+    /**
+     * Function for starting scheduling PRH workflow.
+     *
+     * @return status of operation execution: true - started, false - not started
+     */
+
+    @PostConstruct
+    @ApiOperation(value = "Start task if possible")
+    public synchronized boolean tryToStartTask() {
+        LOGGER.info(ENTRY, "Start scheduling PRH workflow");
+        if (scheduledPrhTaskFutureList.isEmpty()) {
+            scheduledPrhTaskFutureList.add(taskScheduler
+                .scheduleAtFixedRate(cloudConfiguration::runTask, Instant.now(),
+                    Duration.ofMinutes(SCHEDULING_REQUEST_FOR_CONFIGURATION_DELAY)));
+            scheduledPrhTaskFutureList.add(taskScheduler
+                .scheduleWithFixedDelay(scheduledTask::scheduleMainPrhEventTask,
+                    Duration.ofSeconds(SCHEDULING_DELAY_FOR_PRH_TASKS)));
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+}