1 files changed, 144 insertions, 0 deletions
diff --git a/src/main/java/com/wipro/www/sonhms/child/ClusterFormation.java b/src/main/java/com/wipro/www/sonhms/child/ClusterFormation.java
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+/*******************************************************************************
+ * ============LICENSE_START=======================================================
+ * pcims
+ *  ================================================================================
+ *  Copyright (C) 2018 Wipro Limited.
+ *  ==============================================================================
+ *   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 com.wipro.www.sonhms.child;
+
+import com.wipro.www.sonhms.ConfigPolicy;
+import com.wipro.www.sonhms.Configuration;
+import com.wipro.www.sonhms.dao.ClusterDetailsRepository;
+import com.wipro.www.sonhms.entity.ClusterDetails;
+import com.wipro.www.sonhms.model.FapServiceList;
+import com.wipro.www.sonhms.utils.BeanUtil;
+
+import java.sql.Timestamp;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.Properties;
+import java.util.UUID;
+import java.util.concurrent.BlockingQueue;
+
+import org.slf4j.Logger;
+
+
+public class ClusterFormation {
+
+    private static final Logger log = org.slf4j.LoggerFactory.getLogger(ClusterFormation.class);
+    private BlockingQueue<FapServiceList> queue;
+    private ClusterModification clusterModification;
+    private Detection detect;
+    Properties confProp;
+    ClusterDetails details = new ClusterDetails();
+
+    public ClusterFormation() {
+        this.detect = new Detection();
+    }
+
+    /**
+     * parameterized constructor.
+     *
+     */
+    public ClusterFormation(BlockingQueue<FapServiceList> queue) {
+        super();
+        this.queue = queue;
+        this.detect = new Detection();
+        this.clusterModification = new ClusterModification();
+    }
+
+    /**
+     * Determines whether to trigger Oof or wait for notifications.
+     */
+    public Boolean triggerOrWait(Map<String, ArrayList<Integer>> collisionConfusionResult) {
+        // determine collision or confusion
+
+        Configuration configuration = Configuration.getInstance();
+        int collisionSum = 0;
+        int confusionSum = 0;
+
+        for (Map.Entry<String, ArrayList<Integer>> entry : collisionConfusionResult.entrySet()) {
+
+            ArrayList<Integer> arr;
+            arr = entry.getValue();
+            // check for 0 collision and confusion
+            if (!arr.isEmpty()) {
+                collisionSum = collisionSum + arr.get(0);
+                confusionSum = confusionSum + arr.get(1);
+            }
+        }
+        return ((collisionSum >= configuration.getMinCollision()) && (confusionSum >= configuration.getMinConfusion()));
+
+    }
+
+    /**
+     * Waits for notifications.
+     */
+    public Map<String, ArrayList<Integer>> waitForNotification(Map<String, ArrayList<Integer>> collisionConfusionResult,
+            Graph cluster) {
+
+        FapServiceList newNotification;
+        ConfigPolicy config = ConfigPolicy.getInstance();
+        int timer = 60;
+        try {
+            timer = (int) config.getConfig().get("PCI_NEIGHBOR_CHANGE_CLUSTER_TIMEOUT_IN_SECS");
+        } catch (NullPointerException e) {
+            log.debug("Policy config not available. Using default timeout - 60 seconds");
+        }
+
+        Timestamp currentTime = new Timestamp(System.currentTimeMillis());
+        log.debug("Current Time {}", currentTime);
+
+        Timestamp laterTime = new Timestamp(System.currentTimeMillis());
+        log.debug("LaterTime {}", laterTime);
+
+        long difference = laterTime.getTime() - currentTime.getTime();
+
+        int flag = 0;
+
+        while (difference < (timer * 1000)) {
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                log.error("Interrupted Exception is {}", e);
+                Thread.currentThread().interrupt();
+            }
+
+            laterTime = new Timestamp(System.currentTimeMillis());
+            difference = laterTime.getTime() - currentTime.getTime();
+
+            if ((difference < (timer * 1000)) && (!queue.isEmpty())) {
+                newNotification = queue.poll();
+                cluster = clusterModification.clustermod(cluster, newNotification);
+
+                // update cluster in DB
+                String cellPciNeighbourString = cluster.getPciNeighbourJson();
+                UUID clusterId = cluster.getGraphId();
+                ClusterDetailsRepository clusterDetailsRepository = BeanUtil.getBean(ClusterDetailsRepository.class);
+                clusterDetailsRepository.updateCluster(cellPciNeighbourString, clusterId.toString());
+                flag++;
+
+            }
+        }
+        if (flag != 0) {
+            return detect.detectCollisionConfusion(cluster);
+
+        }
+        return collisionConfusionResult;
+    }
+
+}