1 files changed, 118 insertions, 0 deletions
diff --git a/src/main/java/org/onap/a1pesimulator/service/cell/RanCellsHolder.java b/src/main/java/org/onap/a1pesimulator/service/cell/RanCellsHolder.java
new file mode 100644
index 0000000..86fa32c
--- /dev/null
+++ b/src/main/java/org/onap/a1pesimulator/service/cell/RanCellsHolder.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * 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
+ */
+
+package org.onap.a1pesimulator.service.cell;
+
+import java.text.MessageFormat;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.function.BinaryOperator;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import org.onap.a1pesimulator.data.cell.CellDetails;
+import org.onap.a1pesimulator.data.cell.CellList.Cell;
+import org.onap.a1pesimulator.data.cell.CellList.CellData;
+import org.onap.a1pesimulator.util.TopologyReader;
+import org.springframework.stereotype.Service;
+
+@Service
+public class RanCellsHolder {
+
+    private Map<String, CellDetails> cellDetailsById;
+    private final Collection<CellInFailureMode> cellsInFailureMode = new HashSet<>();
+
+    private final TopologyReader topologyReader;
+
+    public RanCellsHolder(TopologyReader topologyReader) {
+        this.topologyReader = topologyReader;
+        refresh();
+    }
+
+    public Set<String> getCellIds() {
+        return cellDetailsById.keySet();
+    }
+
+    public CellDetails getCellById(String id) {
+        if (!cellDetailsById.containsKey(id)) {
+            throw new RuntimeException(MessageFormat.format("Cell not found: {0}", id));
+        }
+        return cellDetailsById.get(id);
+    }
+
+    public Collection<CellDetails> getCellDetailsList() {
+        return cellDetailsById.values();
+    }
+
+    public Collection<CellDetails> getAllCells() {
+        return cellDetailsById.values();
+    }
+
+    public void markCellInFailure(String id) {
+        cellsInFailureMode.add(CellInFailureMode.builder().id(id).build());
+    }
+
+    public boolean isInFailureMode(String id) {
+        return cellsInFailureMode.stream().anyMatch(byIdPredicate(id));
+    }
+
+    public void unmarkCellInFailure(String id) {
+        cellsInFailureMode.removeIf(byIdPredicate(id));
+    }
+
+    public Optional<CellInFailureMode> getCellsInFailureMode(String id) {
+        return cellsInFailureMode.stream().filter(byIdPredicate(id)).findFirst();
+    }
+
+    @Getter
+    @Builder
+    public static class CellInFailureMode {
+
+        private final String id;
+        @Setter
+        private Long sleepingModeDetectedTime;
+    }
+
+    public void refresh() {
+        List<CellData> cellDatas = topologyReader.loadCellTopology().getCellList();
+        cellDetailsById = cellDatas.stream().collect(Collectors.toMap(cellData -> cellData.getCell().getNodeId(),
+                this::toCellDetails, throwingMerger(), TreeMap::new));
+    }
+
+    public boolean hasChanged() {
+        return topologyReader.topologyCellHasChanged();
+    }
+
+    private <T> BinaryOperator<T> throwingMerger() {
+        return (u, v) -> {
+            throw new IllegalStateException(String.format("Duplicate key %s", u));
+        };
+    }
+
+    private CellDetails toCellDetails(CellData data) {
+        Cell cell = data.getCell();
+        return CellDetails.builder().id(cell.getNodeId()).latitude(cell.getLatitude()).longitude(cell.getLongitude())
+                       .build();
+    }
+
+    public static Predicate<CellInFailureMode> byIdPredicate(String id) {
+        return cell -> cell.getId().equals(id);
+    }
+}