BUG-2637: migration final - cleanup
[controller.git] / opendaylight / md-sal / compatibility / sal-compatibility / src / main / java / org / opendaylight / controller / sal / compatibility / InventoryAndReadAdapter.java
diff --git a/opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/InventoryAndReadAdapter.java b/opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/InventoryAndReadAdapter.java
deleted file mode 100644 (file)
index 560d8a1..0000000
+++ /dev/null
@@ -1,917 +0,0 @@
-/**
- * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.sal.compatibility;
-
-import com.google.common.base.Optional;
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.collect.Iterables;
-
-import org.opendaylight.controller.md.sal.binding.util.TypeSafeDataReader;
-import org.opendaylight.controller.sal.binding.api.data.DataBrokerService;
-import org.opendaylight.controller.sal.binding.api.data.DataModificationTransaction;
-import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
-import org.opendaylight.controller.sal.core.ConstructionException;
-import org.opendaylight.controller.sal.core.Edge;
-import org.opendaylight.controller.sal.core.Node;
-import org.opendaylight.controller.sal.core.NodeConnector;
-import org.opendaylight.controller.sal.core.NodeTable;
-import org.opendaylight.controller.sal.core.NodeTable.NodeTableIDType;
-import org.opendaylight.controller.sal.core.Property;
-import org.opendaylight.controller.sal.core.UpdateType;
-import org.opendaylight.controller.sal.inventory.IPluginInInventoryService;
-import org.opendaylight.controller.sal.inventory.IPluginOutInventoryService;
-import org.opendaylight.controller.sal.reader.FlowOnNode;
-import org.opendaylight.controller.sal.reader.IPluginInReadService;
-import org.opendaylight.controller.sal.reader.IPluginOutReadService;
-import org.opendaylight.controller.sal.reader.NodeConnectorStatistics;
-import org.opendaylight.controller.sal.reader.NodeDescription;
-import org.opendaylight.controller.sal.reader.NodeTableStatistics;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.AggregateFlowStatisticsUpdate;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowStatisticsData;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetAllFlowStatisticsFromFlowTableInput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetAllFlowStatisticsFromFlowTableInputBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetAllFlowStatisticsFromFlowTableOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.GetFlowStatisticsFromFlowTableInputBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.OpendaylightFlowStatisticsListener;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.OpendaylightFlowStatisticsService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsData;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsUpdate;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.GetFlowTablesStatisticsInputBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.OpendaylightFlowTableStatisticsListener;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.OpendaylightFlowTableStatisticsService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.statistics.FlowTableStatistics;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.FlowTopologyDiscoveryService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.Link;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev131103.TransactionAware;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev131103.TransactionId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRemoved;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorUpdated;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemoved;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdated;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.GenericStatistics;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.node.connector.statistics.Bytes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.node.connector.statistics.Packets;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatistics;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsData;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.GetAllNodeConnectorsStatisticsInputBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.GetNodeConnectorStatisticsInputBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.NodeConnectorStatisticsUpdate;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.OpendaylightPortStatisticsListener;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.OpendaylightPortStatisticsService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.node.connector.statistics.and.port.number.map.NodeConnectorStatisticsAndPortNumberMap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.TableId;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-
-public class InventoryAndReadAdapter implements IPluginInReadService, IPluginInInventoryService, OpendaylightFlowStatisticsListener, OpendaylightFlowTableStatisticsListener, OpendaylightPortStatisticsListener {
-    private static final Logger LOG = LoggerFactory.getLogger(InventoryAndReadAdapter.class);
-    private static final short OPENFLOWV10_TABLE_ID = 0;
-    private static final int SLEEP_FOR_NOTIFICATIONS_MILLIS = 500;
-
-    private final InventoryNotificationProvider inventoryNotificationProvider = new InventoryNotificationProvider();
-    private final Map<PathArgument,List<PathArgument>> nodeToNodeConnectorsMap = new ConcurrentHashMap<>();
-    private List<IPluginOutInventoryService> inventoryPublisher = new CopyOnWriteArrayList<>();
-    private List<IPluginOutReadService> statisticsPublisher = new CopyOnWriteArrayList<>();
-    private Cache<String, TransactionNotificationList<? extends TransactionAware>> txCache;
-
-    private OpendaylightFlowTableStatisticsService flowTableStatisticsService;
-    private OpendaylightPortStatisticsService nodeConnectorStatisticsService;
-    private OpendaylightFlowStatisticsService flowStatisticsService;
-    private FlowTopologyDiscoveryService topologyDiscovery;
-    private DataProviderService dataProviderService;
-    private DataBrokerService dataService;
-
-    public DataBrokerService getDataService() {
-        return dataService;
-    }
-
-    public void setDataService(final DataBrokerService dataService) {
-        this.dataService = dataService;
-    }
-
-    public DataProviderService getDataProviderService() {
-        return dataProviderService;
-    }
-
-    public void setDataProviderService(final DataProviderService dataProviderService) {
-        this.dataProviderService = dataProviderService;
-    }
-
-    public OpendaylightFlowStatisticsService getFlowStatisticsService() {
-        return flowStatisticsService;
-    }
-
-    public void setFlowStatisticsService(final OpendaylightFlowStatisticsService flowStatisticsService) {
-        this.flowStatisticsService = flowStatisticsService;
-    }
-
-    public OpendaylightPortStatisticsService getNodeConnectorStatisticsService() {
-        return nodeConnectorStatisticsService;
-    }
-
-    public void setNodeConnectorStatisticsService(final OpendaylightPortStatisticsService nodeConnectorStatisticsService) {
-        this.nodeConnectorStatisticsService = nodeConnectorStatisticsService;
-    }
-
-    public OpendaylightFlowTableStatisticsService getFlowTableStatisticsService() {
-        return flowTableStatisticsService;
-    }
-
-    public void setFlowTableStatisticsService(final OpendaylightFlowTableStatisticsService flowTableStatisticsService) {
-        this.flowTableStatisticsService = flowTableStatisticsService;
-    }
-
-    public FlowTopologyDiscoveryService getTopologyDiscovery() {
-        return topologyDiscovery;
-    }
-
-    public void setTopologyDiscovery(final FlowTopologyDiscoveryService topologyDiscovery) {
-        this.topologyDiscovery = topologyDiscovery;
-    }
-
-    public List<IPluginOutReadService> getStatisticsPublisher() {
-        return statisticsPublisher;
-    }
-
-    public void setStatisticsPublisher(final List<IPluginOutReadService> statisticsPublisher) {
-        this.statisticsPublisher = statisticsPublisher;
-    }
-
-    public List<IPluginOutInventoryService> getInventoryPublisher() {
-        return inventoryPublisher;
-    }
-
-    public void setInventoryPublisher(final List<IPluginOutInventoryService> inventoryPublisher) {
-        this.inventoryPublisher = inventoryPublisher;
-    }
-
-    public void startAdapter() {
-        inventoryNotificationProvider.setDataProviderService(getDataProviderService());
-        inventoryNotificationProvider.setInventoryPublisher(getInventoryPublisher());
-        txCache = CacheBuilder.newBuilder().expireAfterWrite(60L, TimeUnit.SECONDS).maximumSize(10000).build();
-        // inventoryNotificationProvider.start();
-    }
-
-    public boolean setInventoryPublisher(final IPluginOutInventoryService listener) {
-        return getInventoryPublisher().add(listener);
-    }
-
-    public boolean unsetInventoryPublisher(final IPluginOutInventoryService listener) {
-        return getInventoryPublisher().remove(listener);
-    }
-
-    public boolean setReadPublisher(final IPluginOutReadService listener) {
-        return getStatisticsPublisher().add(listener);
-    }
-
-    public Boolean unsetReadPublisher(final IPluginOutReadService listener) {
-        if (listener != null) {
-            return getStatisticsPublisher().remove(listener);
-        }
-        return false;
-    }
-
-    protected DataModificationTransaction startChange() {
-        return getDataProviderService().beginTransaction();
-    }
-
-    @Override
-    public long getTransmitRate(final NodeConnector connector) {
-        final FlowCapableNodeConnector nodeConnector = this.readOperFlowCapableNodeConnector(NodeMapping.toNodeConnectorRef(connector));
-        return nodeConnector.getCurrentSpeed().longValue();
-    }
-
-    private FlowCapableNode readOperFlowCapableNode(final NodeRef ref) {
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node node =
-                (org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node)getDataService().readOperationalData(ref.getValue());
-        if (node == null) {
-            return null;
-        }
-
-        return node.getAugmentation(FlowCapableNode.class);
-    }
-
-    private org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node readConfigNode(final Node node) {
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node> nodeRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, InventoryMapping.toNodeKey(node))
-                .build();
-
-        return (org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node) startChange().readConfigurationData(nodeRef);
-    }
-
-    private org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector readConfigNodeConnector(final NodeConnector connector) {
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector> nodeConnectorRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, InventoryMapping.toNodeKey(connector.getNode()))
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector.class, InventoryMapping.toNodeConnectorKey(connector))
-                .toInstance();
-
-        return((org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector) startChange().readConfigurationData(nodeConnectorRef));
-    }
-
-    /**
-     * Read a table of a node from configuration data store.
-     *
-     * @param node Node id
-     * @param id Table id
-     * @return Table contents, or null if not present
-     */
-    private Table readOperationalTable(final Node node, final short id) {
-        final InstanceIdentifier<Table> tableRef = InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, NodeMapping.toNodeKey(node))
-                .augmentation(FlowCapableNode.class)
-                .child(Table.class, new TableKey(id))
-                .build();
-
-        return (Table) startChange().readOperationalData(tableRef);
-    }
-
-    @Override
-    public List<FlowOnNode> readAllFlow(final Node node, final boolean cached) {
-        final ArrayList<FlowOnNode> ret= new ArrayList<>();
-        if (cached) {
-            final Table table = readOperationalTable(node, OPENFLOWV10_TABLE_ID);
-            if (table != null) {
-                final List<Flow> flows = table.getFlow();
-                LOG.trace("Number of flows installed in table 0 of node {} : {}", node, flows.size());
-
-                for (final Flow flow : flows) {
-                    final FlowStatisticsData statsFromDataStore = flow.getAugmentation(FlowStatisticsData.class);
-                    if (statsFromDataStore != null) {
-                        final FlowOnNode it = new FlowOnNode(ToSalConversionsUtils.toFlow(flow, node));
-                        ret.add(addFlowStats(it, statsFromDataStore.getFlowStatistics()));
-                    }
-                }
-            }
-        } else {
-            LOG.debug("readAllFlow cached:{}", cached);
-            GetAllFlowStatisticsFromFlowTableInput input =
-                new GetAllFlowStatisticsFromFlowTableInputBuilder()
-                    .setNode(NodeMapping.toNodeRef(node))
-                    .setTableId(new TableId(OPENFLOWV10_TABLE_ID))
-                    .build();
-
-            Future<RpcResult<GetAllFlowStatisticsFromFlowTableOutput>> future =
-                getFlowStatisticsService().getAllFlowStatisticsFromFlowTable(input);
-
-            RpcResult<GetAllFlowStatisticsFromFlowTableOutput> result = null;
-            try {
-                // having a blocking call is fine here, as we need to join
-                // the notifications and return the result
-                result = future.get();
-            } catch (Exception e) {
-               LOG.error("Exception in getAllFlowStatisticsFromFlowTable ", e);
-               return ret;
-            }
-
-            GetAllFlowStatisticsFromFlowTableOutput output = result.getResult();
-            if (output == null) {
-                return ret;
-            }
-
-            TransactionId transactionId = output.getTransactionId();
-            String cacheKey = buildCacheKey(transactionId, NodeMapping.toNodeId(node));
-            LOG.info("readAllFlow transactionId:{} cacheKey:{}", transactionId, cacheKey);
-
-            // insert an entry in tempcache, will get updated when notification is received
-            txCache.put(cacheKey, new TransactionNotificationList<FlowsStatisticsUpdate>(
-                transactionId, node.getNodeIDString()));
-
-            TransactionNotificationList<FlowsStatisticsUpdate> txnList =
-                (TransactionNotificationList<FlowsStatisticsUpdate>) txCache.getIfPresent(cacheKey);
-
-            // this loop would not be infinite as the cache will remove an entry
-            // after defined time if not written to
-            while (txnList != null && !txnList.areAllNotificationsGathered()) {
-                LOG.debug("readAllFlow waiting for notification...");
-                waitForNotification();
-                txnList = (TransactionNotificationList<FlowsStatisticsUpdate>) txCache.getIfPresent(cacheKey);
-            }
-
-            if (txnList == null) {
-                return ret;
-            }
-
-            List<FlowsStatisticsUpdate> notifications = txnList.getNotifications();
-            for (FlowsStatisticsUpdate flowsStatisticsUpdate : notifications) {
-                List<FlowAndStatisticsMapList> flowAndStatisticsMapList = flowsStatisticsUpdate.getFlowAndStatisticsMapList();
-                if (flowAndStatisticsMapList != null) {
-                    for (FlowAndStatisticsMapList flowAndStatistics : flowAndStatisticsMapList) {
-                        final FlowOnNode it = new FlowOnNode(ToSalConversionsUtils.toFlow(flowAndStatistics, node));
-                        ret.add(addFlowStats(it, flowAndStatistics));
-                    }
-                }
-            }
-        }
-        return ret;
-    }
-
-    private String buildCacheKey(final TransactionId id, final NodeId nodeId) {
-        return String.valueOf(id.getValue()) + "-" + nodeId.getValue();
-    }
-
-    private void waitForNotification() {
-        try {
-            // going for a simple sleep approach,as wait-notify on a monitor would require
-            // us to maintain monitors per txn-node combo
-            Thread.sleep(SLEEP_FOR_NOTIFICATIONS_MILLIS);
-            LOG.trace("statCollector is waking up from a wait stat Response sleep");
-        } catch (final InterruptedException e) {
-            LOG.warn("statCollector has been interrupted waiting stat Response sleep", e);
-        }
-    }
-
-    @Override
-    public List<NodeConnectorStatistics> readAllNodeConnector(final Node node, final boolean cached) {
-        final ArrayList<NodeConnectorStatistics> ret = new ArrayList<>();
-
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node dsNode = readConfigNode(node);
-        if (dsNode != null) {
-            for (final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector dsNodeConnector : dsNode.getNodeConnector()) {
-                final FlowCapableNodeConnectorStatistics stats = (dsNodeConnector.getAugmentation(FlowCapableNodeConnectorStatisticsData.class));
-                if (stats != null) {
-                    try {
-                        ret.add(toNodeConnectorStatistics(stats.getFlowCapableNodeConnectorStatistics(), dsNode.getId(), dsNodeConnector.getId()));
-                    } catch (ConstructionException e) {
-                        LOG.warn("Failed to instantiate node connector statistics for node {} connector {}, ignoring it",
-                                dsNode.getId(), dsNodeConnector.getId(), e);
-                    }
-                }
-            }
-        }
-
-        //TODO: Refer TODO (main)
-        getNodeConnectorStatisticsService().getAllNodeConnectorsStatistics(
-                new GetAllNodeConnectorsStatisticsInputBuilder().setNode(NodeMapping.toNodeRef(node)).build());
-        return ret;
-    }
-
-    @Override
-    public List<NodeTableStatistics> readAllNodeTable(final Node node, final boolean cached) {
-        final NodeRef nodeRef = NodeMapping.toNodeRef(node);
-
-        final ArrayList<NodeTableStatistics> ret = new ArrayList<>();
-        final FlowCapableNode dsFlowCapableNode = this.readOperFlowCapableNode(nodeRef);
-        if (dsFlowCapableNode != null) {
-            for (final Table table : dsFlowCapableNode.getTable()) {
-                final FlowTableStatisticsData tableStats = table.getAugmentation(FlowTableStatisticsData.class);
-                if (tableStats != null) {
-                    try {
-                        ret.add(toNodeTableStatistics(tableStats.getFlowTableStatistics(), table.getId(), node));
-                    } catch (ConstructionException e) {
-                        LOG.warn("Failed to instantiate table statistics for node {} table {}, ignoring it", node, table.getId(), e);
-                    }
-                }
-            }
-        }
-
-        //TODO: Refer TODO (main)
-        getFlowTableStatisticsService().getFlowTablesStatistics(new GetFlowTablesStatisticsInputBuilder().setNode(nodeRef).build());
-        return ret;
-    }
-
-    @Override
-    public NodeDescription readDescription(final Node node, final boolean cached) {
-        return this.toNodeDescription(NodeMapping.toNodeRef(node));
-    }
-
-    @Override
-    public FlowOnNode readFlow(final Node node, final org.opendaylight.controller.sal.flowprogrammer.Flow targetFlow, final boolean cached) {
-        FlowOnNode ret = null;
-        final Table table = readOperationalTable(node, OPENFLOWV10_TABLE_ID);
-        if (table != null) {
-            final List<Flow> flows = table.getFlow();
-            InventoryAndReadAdapter.LOG.trace("Number of flows installed in table 0 of node {} : {}", node, flows.size());
-
-            for (final Flow mdsalFlow : flows) {
-                if(FromSalConversionsUtils.flowEquals(mdsalFlow, MDFlowMapping.toMDSalflow(targetFlow))) {
-                    final FlowStatisticsData statsFromDataStore = mdsalFlow.getAugmentation(FlowStatisticsData.class);
-                    if (statsFromDataStore != null) {
-                        InventoryAndReadAdapter.LOG.debug("Found matching flow in the data store flow table ");
-                        ret = addFlowStats(new FlowOnNode(targetFlow), statsFromDataStore.getFlowStatistics());
-
-                        // FIXME: break; ?
-                    }
-                }
-            }
-        }
-
-        //TODO: Refer TODO (main)
-        final GetFlowStatisticsFromFlowTableInputBuilder input = new GetFlowStatisticsFromFlowTableInputBuilder().setNode(NodeMapping.toNodeRef(node));
-        input.fieldsFrom(MDFlowMapping.toMDSalflow(targetFlow));
-        getFlowStatisticsService().getFlowStatisticsFromFlowTable(input.build());
-        return ret;
-    }
-
-    @Override
-    public NodeConnectorStatistics readNodeConnector(final NodeConnector connector, final boolean cached) {
-        final NodeConnectorId ncId = InventoryMapping.toNodeConnectorKey(connector).getId();
-
-        NodeConnectorStatistics ret = null;
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector nodeConnectorFromDS = readConfigNodeConnector(connector);
-        if (nodeConnectorFromDS != null) {
-            final FlowCapableNodeConnectorStatistics stats = nodeConnectorFromDS.getAugmentation(FlowCapableNodeConnectorStatisticsData.class);
-            if (stats != null) {
-                try {
-                    ret = toNodeConnectorStatistics(stats.getFlowCapableNodeConnectorStatistics(),
-                            InventoryMapping.toNodeKey(connector.getNode()).getId(), ncId);
-                } catch (ConstructionException e) {
-                    LOG.warn("Failed to instantiate node connector statistics for connector {}, ignoring it",
-                            connector, e);
-                }
-            }
-        }
-
-        getNodeConnectorStatisticsService().getNodeConnectorStatistics(
-                new GetNodeConnectorStatisticsInputBuilder().setNode(NodeMapping.toNodeRef(connector.getNode())).setNodeConnectorId(ncId).build());
-        return ret;
-    }
-
-    @Override
-    public NodeTableStatistics readNodeTable(final NodeTable nodeTable, final boolean cached) {
-        NodeTableStatistics nodeStats = null;
-        final Table table = readOperationalTable(nodeTable.getNode(), (short) nodeTable.getID());
-        if (table != null) {
-            final FlowTableStatisticsData tableStats = table.getAugmentation(FlowTableStatisticsData.class);
-            if (tableStats != null) {
-                try {
-                    nodeStats = toNodeTableStatistics(tableStats.getFlowTableStatistics(), table.getId(), nodeTable.getNode());
-                } catch (ConstructionException e) {
-                    LOG.warn("Failed to instantiate table statistics for node {} table {}, ignoring it",
-                            nodeTable.getNode(), table.getId(), e);
-                }
-            }
-        }
-
-        //TODO: Refer TODO (main)
-        getFlowTableStatisticsService().getFlowTablesStatistics(
-                new GetFlowTablesStatisticsInputBuilder().setNode(NodeMapping.toNodeRef(nodeTable.getNode())).build());
-        return nodeStats;
-    }
-
-    public void onNodeConnectorRemovedInternal(final NodeConnectorRemoved update) {
-        // Never received
-    }
-
-    public void onNodeRemovedInternal(final NodeRemoved notification) {
-        this.removeNodeConnectors(notification.getNodeRef().getValue());
-        try {
-            final Node aDNode = NodeMapping.toADNode(notification.getNodeRef());
-            this.publishNodeUpdate(aDNode, UpdateType.REMOVED, Collections.<Property>emptySet());
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node for {}, not propagating update", notification.getNodeRef(), e);
-        }
-    }
-
-    public void onNodeConnectorUpdatedInternal(final NodeConnectorUpdated update) {
-        final NodeConnectorRef ref = update.getNodeConnectorRef();
-        final UpdateType updateType;
-        if (!this.isKnownNodeConnector(ref.getValue())) {
-            this.recordNodeConnector(ref.getValue());
-            updateType = UpdateType.ADDED;
-        } else {
-            updateType = UpdateType.CHANGED;
-        }
-
-        try {
-            final NodeConnector nodeConnector;
-            nodeConnector = NodeMapping.toADNodeConnector(ref);
-            this.publishNodeConnectorUpdate(nodeConnector, updateType, NodeMapping.toADNodeConnectorProperties(update));
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node connector for {}, not reporting the update", ref, e);
-        }
-    }
-
-    public void onNodeUpdatedInternal(final NodeUpdated notification) {
-        final NodeRef ref = notification.getNodeRef();
-
-        final UpdateType updateType;
-        if (dataService.readOperationalData(ref.getValue()) == null) {
-            updateType = UpdateType.ADDED;
-        } else {
-            updateType = UpdateType.CHANGED;
-        }
-
-        final Node aDNode;
-        try {
-            aDNode = NodeMapping.toADNode(ref);
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node for {}, not reporting the update", ref, e);
-            return;
-        }
-
-        this.publishNodeUpdate(aDNode, updateType, NodeMapping.toADNodeProperties(notification));
-        for (final IPluginOutReadService statsPublisher : getStatisticsPublisher()) {
-            final NodeDescription description = this.toNodeDescription(ref);
-            if (description != null) {
-                final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node> nodeRef =
-                        InstanceIdentifier.builder(Nodes.class)
-                        .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, new NodeKey(notification.getId()))
-                        .toInstance();
-                try {
-                    statsPublisher.descriptionStatisticsUpdated(NodeMapping.toADNode(nodeRef), description);
-                } catch (ConstructionException e) {
-                    LOG.warn("Failed to construct node for {}, not reporting the update to publisher {}", nodeRef, statsPublisher, e);
-                }
-            }
-        }
-    }
-
-    @Override
-    public ConcurrentMap<Node,Map<String,Property>> getNodeProps() {
-        final ConcurrentHashMap<Node,Map<String,Property>> props = new ConcurrentHashMap<>();
-        final Nodes nodes = this.readOperAllMDNodes();
-        for (final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node node : nodes.getNode()) {
-            final FlowCapableNode fcn = node.getAugmentation(FlowCapableNode.class);
-            if (fcn != null) {
-                final ConcurrentHashMap<String,Property> perNodePropMap = new ConcurrentHashMap<String, Property>();
-                final HashSet<Property> perNodeProps = NodeMapping.toADNodeProperties(fcn, node.getId());
-                if (perNodeProps != null) {
-                    for (final Property perNodeProp : perNodeProps) {
-                        perNodePropMap.put(perNodeProp.getName(), perNodeProp);
-                    }
-                }
-
-                try {
-                    final Node adNode = NodeMapping.toADNode(node.getId());
-                    props.put(adNode, perNodePropMap);
-                } catch (ConstructionException e) {
-                    LOG.warn("Failed to construct node for {}, skipping it", node, e);
-                }
-            }
-        }
-        return props;
-    }
-
-    private Nodes readOperAllMDNodes() {
-        final TypeSafeDataReader reader = TypeSafeDataReader.forReader(getDataService());
-        return reader.readOperationalData(InstanceIdentifier.builder(Nodes.class).build());
-    }
-
-    @Override
-    public ConcurrentMap<NodeConnector,Map<String,Property>> getNodeConnectorProps(final Boolean refresh) {
-        final ConcurrentHashMap<NodeConnector,Map<String,Property>> props = new ConcurrentHashMap<>();
-        for (final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node node : this.readOperAllMDNodes().getNode()) {
-            for (final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector nc : node.getNodeConnector()) {
-                final FlowCapableNodeConnector fcnc = nc.getAugmentation(FlowCapableNodeConnector.class);
-                if (fcnc != null) {
-                    final ConcurrentHashMap<String,Property> ncpsm = new ConcurrentHashMap<>();
-                    final HashSet<Property> ncps = NodeMapping.toADNodeConnectorProperties(fcnc);
-                    if (ncps != null) {
-                        for (final Property p : ncps) {
-                            ncpsm.put(p.getName(), p);
-                        }
-                    }
-
-                    try {
-                        props.put(NodeMapping.toADNodeConnector(nc.getId(), node.getId()), ncpsm);
-                    } catch (ConstructionException e) {
-                        LOG.warn("Failed to instantiate node {} connector {}, not reporting it", node.getId(), nc.getId(), e);
-                    }
-                }
-            }
-        }
-        return props;
-    }
-
-    private FlowCapableNodeConnector readOperFlowCapableNodeConnector(final NodeConnectorRef ref) {
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector nc =
-                (org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector)
-                getDataService().readOperationalData(ref.getValue());
-        return nc.getAugmentation(FlowCapableNodeConnector.class);
-    }
-
-    private static NodeConnectorStatistics toNodeConnectorStatistics(final org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.NodeConnectorStatistics nodeConnectorStatistics, final NodeId nodeId, final NodeConnectorId nodeConnectorId) throws ConstructionException {
-        final NodeConnectorStatistics it = new NodeConnectorStatistics();
-
-        final Packets packets = nodeConnectorStatistics.getPackets();
-        it.setReceivePacketCount(packets.getReceived().longValue());
-        it.setTransmitPacketCount(packets.getTransmitted().longValue());
-
-        final Bytes bytes = nodeConnectorStatistics.getBytes();
-        it.setReceiveByteCount(bytes.getReceived().longValue());
-        it.setTransmitByteCount(bytes.getTransmitted().longValue());
-
-        it.setReceiveDropCount(nodeConnectorStatistics.getReceiveDrops().longValue());
-        it.setTransmitDropCount(nodeConnectorStatistics.getTransmitDrops().longValue());
-        it.setReceiveErrorCount(nodeConnectorStatistics.getReceiveErrors().longValue());
-        it.setTransmitErrorCount(nodeConnectorStatistics.getTransmitErrors().longValue());
-        it.setReceiveFrameErrorCount(nodeConnectorStatistics.getReceiveFrameError().longValue());
-        it.setReceiveOverRunErrorCount(nodeConnectorStatistics.getReceiveOverRunError().longValue());
-        it.setReceiveCRCErrorCount(nodeConnectorStatistics.getReceiveCrcError().longValue());
-        it.setCollisionCount(nodeConnectorStatistics.getCollisionCount().longValue());
-
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector> nodeConnectorRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, new NodeKey(nodeId))
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector.class, new NodeConnectorKey(nodeConnectorId))
-                .build();
-        it.setNodeConnector(NodeMapping.toADNodeConnector(new NodeConnectorRef(nodeConnectorRef)));
-        return it;
-    }
-
-    private static NodeTableStatistics toNodeTableStatistics(final FlowTableStatistics tableStats, final Short tableId, final Node node) throws ConstructionException {
-        final NodeTableStatistics it = new NodeTableStatistics();
-        it.setActiveCount(tableStats.getActiveFlows().getValue().intValue());
-        it.setLookupCount(tableStats.getPacketsLookedUp().getValue().longValue());
-        it.setMatchedCount(tableStats.getPacketsMatched().getValue().longValue());
-        it.setName(tableId.toString());
-        it.setNodeTable(new NodeTable(NodeTableIDType.OPENFLOW, tableId.byteValue(), node));
-        return it;
-    }
-
-    private NodeDescription toNodeDescription(final NodeRef nodeRef) {
-        final FlowCapableNode capableNode = this.readOperFlowCapableNode(nodeRef);
-        if (capableNode == null) {
-            return null;
-        }
-
-        final NodeDescription it = new NodeDescription();
-        it.setManufacturer(capableNode.getManufacturer());
-        it.setSerialNumber(capableNode.getSerialNumber());
-        it.setSoftware(capableNode.getSoftware());
-        it.setDescription(capableNode.getDescription());
-        return it;
-    }
-
-    public Edge toADEdge(final Link link) throws ConstructionException {
-        NodeConnectorRef _source = link.getSource();
-        NodeConnector _aDNodeConnector = NodeMapping.toADNodeConnector(_source);
-        NodeConnectorRef _destination = link.getDestination();
-        NodeConnector _aDNodeConnector_1 = NodeMapping.toADNodeConnector(_destination);
-        Edge _edge = new Edge(_aDNodeConnector, _aDNodeConnector_1);
-        return _edge;
-    }
-
-    /**
-     * OpendaylightFlowStatisticsListener interface implementation
-     */
-    @Override
-    public void onAggregateFlowStatisticsUpdate(final AggregateFlowStatisticsUpdate notification) {
-        // Ignoring this notification as there does not seem to be a way to bubble this up to AD-SAL
-    }
-
-    @Override
-    public void onFlowsStatisticsUpdate(final FlowsStatisticsUpdate notification) {
-        final ArrayList<FlowOnNode> adsalFlowsStatistics = new ArrayList<>();
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node> nodeRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, new NodeKey(notification.getId()))
-                .build();
-
-        final Node aDNode;
-        try {
-            aDNode = NodeMapping.toADNode(nodeRef);
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node for {}, ignoring it", notification.getId(), e);
-            return;
-        }
-
-        for (final FlowAndStatisticsMapList flowStats : notification.getFlowAndStatisticsMapList()) {
-            if (flowStats.getTableId() == 0) {
-                adsalFlowsStatistics.add(InventoryAndReadAdapter.toFlowOnNode(flowStats, aDNode));
-            }
-        }
-        for (final IPluginOutReadService statsPublisher : getStatisticsPublisher()) {
-            statsPublisher.nodeFlowStatisticsUpdated(aDNode, adsalFlowsStatistics);
-        }
-
-        updateTransactionCache(notification, notification.getId(), !notification.isMoreReplies());
-    }
-
-    /**
-     * OpendaylightFlowTableStatisticsListener interface implementation
-     */
-    @Override
-    public void onFlowTableStatisticsUpdate(final FlowTableStatisticsUpdate notification) {
-        ArrayList<NodeTableStatistics> adsalFlowTableStatistics = new ArrayList<>();
-        for (final FlowTableAndStatisticsMap stats : notification.getFlowTableAndStatisticsMap()) {
-            if (stats.getTableId().getValue() == 0) {
-                final NodeTableStatistics it = new NodeTableStatistics();
-                it.setActiveCount(stats.getActiveFlows().getValue().intValue());
-                it.setLookupCount(stats.getPacketsLookedUp().getValue().longValue());
-                it.setMatchedCount(stats.getPacketsMatched().getValue().longValue());
-                adsalFlowTableStatistics.add(it);
-            }
-        }
-
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node> nodeRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, new NodeKey(notification.getId()))
-                .build();
-
-        final Node aDNode;
-        try {
-            aDNode = NodeMapping.toADNode(nodeRef);
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node for {}, ignoring it", notification.getId(), e);
-            return;
-        }
-
-        for (final IPluginOutReadService statsPublisher : getStatisticsPublisher()) {
-            statsPublisher.nodeTableStatisticsUpdated(aDNode, adsalFlowTableStatistics);
-        }
-    }
-
-    /**
-     * OpendaylightPortStatisticsUpdate interface implementation
-     */
-    @Override
-    public void onNodeConnectorStatisticsUpdate(final NodeConnectorStatisticsUpdate notification) {
-        final ArrayList<NodeConnectorStatistics> adsalPortStatistics = new ArrayList<NodeConnectorStatistics>();
-        for (final NodeConnectorStatisticsAndPortNumberMap nodeConnectorStatistics : notification.getNodeConnectorStatisticsAndPortNumberMap()) {
-            try {
-                adsalPortStatistics.add(toNodeConnectorStatistics(
-                        nodeConnectorStatistics, notification.getId(), nodeConnectorStatistics.getNodeConnectorId()));
-            } catch (ConstructionException e) {
-                LOG.warn("Failed to create statistics for node {} connector {}, not updating them",
-                        notification.getId(), nodeConnectorStatistics.getNodeConnectorId(), e);
-            }
-        }
-
-        final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node> nodeRef =
-                InstanceIdentifier.builder(Nodes.class)
-                .child(org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node.class, new NodeKey(notification.getId()))
-                .build();
-
-        final Node aDNode;
-        try {
-            aDNode = NodeMapping.toADNode(nodeRef);
-        } catch (ConstructionException e) {
-            LOG.warn("Failed to construct node for {}, ignoring it", notification.getId(), e);
-            return;
-        }
-
-        for (final IPluginOutReadService statsPublisher : getStatisticsPublisher()) {
-            statsPublisher.nodeConnectorStatisticsUpdated(aDNode, adsalPortStatistics);
-        }
-    }
-
-    private static FlowOnNode toFlowOnNode(final FlowAndStatisticsMapList flowAndStatsMap, final Node node) {
-        final FlowOnNode it = new FlowOnNode(ToSalConversionsUtils.toFlow(flowAndStatsMap, node));
-        return addFlowStats(it, flowAndStatsMap);
-    }
-
-    private static FlowOnNode addFlowStats(final FlowOnNode node, final GenericStatistics stats) {
-        node.setByteCount(stats.getByteCount().getValue().longValue());
-        node.setPacketCount(stats.getPacketCount().getValue().longValue());
-        node.setDurationSeconds(stats.getDuration().getSecond().getValue().intValue());
-        node.setDurationNanoseconds(stats.getDuration().getNanosecond().getValue().intValue());
-        return node;
-    }
-
-    @Override
-    public Set<Node> getConfiguredNotConnectedNodes() {
-        return Collections.emptySet();
-    }
-
-    private void publishNodeUpdate(final Node node, final UpdateType updateType, final Set<Property> properties) {
-        for (final IPluginOutInventoryService publisher : getInventoryPublisher()) {
-            publisher.updateNode(node, updateType, properties);
-        }
-    }
-
-    private void publishNodeConnectorUpdate(final NodeConnector nodeConnector, final UpdateType updateType, final Set<Property> properties) {
-        for (final IPluginOutInventoryService publisher : getInventoryPublisher()) {
-            publisher.updateNodeConnector(nodeConnector, updateType, properties);
-        }
-    }
-
-    private boolean isKnownNodeConnector(final InstanceIdentifier<? extends Object> nodeConnectorIdentifier) {
-        final Iterator<PathArgument> it = nodeConnectorIdentifier.getPathArguments().iterator();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        it.next();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        final PathArgument nodePath = it.next();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        final PathArgument nodeConnectorPath = it.next();
-
-        final List<PathArgument> nodeConnectors = nodeToNodeConnectorsMap.get(nodePath);
-        return nodeConnectors == null ? false :
-            nodeConnectors.contains(nodeConnectorPath);
-    }
-
-    private boolean recordNodeConnector(final InstanceIdentifier<? extends Object> nodeConnectorIdentifier) {
-        final Iterator<PathArgument> it = nodeConnectorIdentifier.getPathArguments().iterator();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        it.next();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        final PathArgument nodePath = it.next();
-
-        if (!it.hasNext()) {
-            return false;
-        }
-        final PathArgument nodeConnectorPath = it.next();
-
-        synchronized (this) {
-            List<PathArgument> nodeConnectors = this.nodeToNodeConnectorsMap.get(nodePath);
-            if (nodeConnectors == null) {
-                nodeConnectors = new ArrayList<>();
-                this.nodeToNodeConnectorsMap.put(nodePath, nodeConnectors);
-            }
-
-            return nodeConnectors.add(nodeConnectorPath);
-        }
-    }
-
-    private List<PathArgument> removeNodeConnectors(final InstanceIdentifier<? extends Object> nodeIdentifier) {
-        return this.nodeToNodeConnectorsMap.remove(Iterables.get(nodeIdentifier.getPathArguments(), 1));
-    }
-
-    private <T extends TransactionAware> void updateTransactionCache(T notification, NodeId nodeId, boolean lastNotification) {
-
-        String cacheKey = buildCacheKey(notification.getTransactionId(), nodeId);
-        TransactionNotificationList<T> txnList = (TransactionNotificationList<T>) txCache.getIfPresent(cacheKey);
-        final Optional<TransactionNotificationList<T>> optional = Optional.<TransactionNotificationList<T>>fromNullable(txnList);
-        if (optional.isPresent()) {
-            LOG.info("updateTransactionCache cacheKey:{}, lastNotification:{}, txnList-present:{}", cacheKey, lastNotification, optional.isPresent());
-            TransactionNotificationList<T> txn = optional.get();
-            txn.addNotification(notification);
-            txn.setAllNotificationsGathered(lastNotification);
-        }
-    }
-
-    private class TransactionNotificationList<T extends TransactionAware> {
-        private TransactionId id;
-        private String nId;
-        private List<T> notifications;
-        private boolean allNotificationsGathered;
-
-        public TransactionNotificationList(TransactionId id, String nId) {
-            this.nId = nId;
-            this.id = id;
-            notifications = new ArrayList<T>();
-        }
-
-        public void addNotification(T notification) {
-            notifications.add(notification);
-        }
-
-        public void setAllNotificationsGathered(boolean allNotificationsGathered) {
-            this.allNotificationsGathered = allNotificationsGathered;
-        }
-
-        public boolean areAllNotificationsGathered() {
-            return allNotificationsGathered;
-        }
-
-        public List<T> getNotifications() {
-            return notifications;
-        }
-
-    }
-
-}