+++ /dev/null
-/*
- * Copyright © 2017 AT&T 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.transportpce.inventory.listener;
-
-import java.util.Collection;
-import java.util.List;
-import java.util.concurrent.ExecutionException;
-import java.util.stream.Collectors;
-import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
-import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
-import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
-import org.opendaylight.transportpce.common.StringConstants;
-import org.opendaylight.transportpce.inventory.DeviceInventory;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus.ConnectionStatus;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * This class implements the {@link DataTreeChangeListener} on a {@link Node}. This listener should
- * be registered on a netconf topology node.
- *
- */
-public class DeviceListener implements DataTreeChangeListener<Node> {
-
- private static final Logger LOG = LoggerFactory.getLogger(DeviceListener.class);
- private final DeviceInventory deviceInventory;
-
- /**
- * Default constructor invoked by blueprint injects {@link DeviceInventory} as a persistence layer.
- *
- * @param deviceInventory reference to the {@link DeviceInventory}
- */
- public DeviceListener(DeviceInventory deviceInventory) {
- this.deviceInventory = deviceInventory;
- }
-
- @Override
- public void onDataTreeChanged(Collection<DataTreeModification<Node>> changes) {
- List<DataTreeModification<Node>> changesWithoutDefaultNetconfNode = getRealDevicesOnly(changes);
- for (DataTreeModification<Node> device : changesWithoutDefaultNetconfNode) {
- String nodeId = device.getRootNode().getDataAfter().key().getNodeId().getValue();
- NetconfNode netconfNode = device.getRootNode().getDataAfter().augmentation(NetconfNode.class);
- if (isCreate(device) || isUpdate(device)) {
- LOG.info("Node {} was modified", nodeId);
- try {
- processModifiedSubtree(nodeId, netconfNode);
- } catch (InterruptedException | ExecutionException e) {
- LOG.error(e.getMessage(), e);
- }
- } else if (isDelete(device)) {
- LOG.info("Node {} was deleted", nodeId);
- }
- }
- }
-
- /**
- * Handles the {@link ModificationType#SUBTREE_MODIFIED} case. If the changed node has
- * {@link StringConstants.OPENROADM_DEVICE_MODEL_NAME} capabilities it may be persisted.
- *
- * @param nodeId device id
- * @param netconfNode netconf node
- * @throws InterruptedException may be thrown if there is a problem getting the device from
- * datastore
- * @throws ExecutionException may be thrown if there is a problem getting the device from datastore
- */
- private void processModifiedSubtree(String nodeId, NetconfNode netconfNode)
- throws InterruptedException, ExecutionException {
- NetconfNodeConnectionStatus.ConnectionStatus connectionStatus = netconfNode.getConnectionStatus();
- long count = netconfNode.getAvailableCapabilities().getAvailableCapability().stream()
- .filter(cp -> cp.getCapability().contains(StringConstants.OPENROADM_DEVICE_MODEL_NAME)).count();
- if (count < 1) {
- LOG.info("No {} capable device was found", StringConstants.OPENROADM_DEVICE_MODEL_NAME);
- return;
- }
- if (ConnectionStatus.Connected.equals(connectionStatus)) {
- this.deviceInventory.initializeDevice(nodeId);
- } else if (ConnectionStatus.Connecting.equals(connectionStatus)
- || ConnectionStatus.UnableToConnect.equals(connectionStatus)) {
- LOG.info("The device is in {} state", connectionStatus);
- } else {
- LOG.warn("Invalid connection status {}", connectionStatus);
- }
- }
-
- /**
- * Filters the {@link StringConstants#DEFAULT_NETCONF_NODEID} nodes from the provided
- * {@link Collection}.
- *
- * @param changes a change
- * @return {@code List<DataTreeModification<Node>>} a list of modifcations
- */
- private static List<DataTreeModification<Node>> getRealDevicesOnly(Collection<DataTreeModification<Node>> changes) {
- return changes.stream()
- .filter(change -> ((change.getRootNode().getDataAfter() != null)
- && !StringConstants.DEFAULT_NETCONF_NODEID
- .equalsIgnoreCase(change.getRootNode().getDataAfter().key().getNodeId().getValue())
- && (change.getRootNode().getDataAfter().augmentation(NetconfNode.class) != null))
- || ((change.getRootNode().getDataBefore() != null)
- && !StringConstants.DEFAULT_NETCONF_NODEID.equalsIgnoreCase(
- change.getRootNode().getDataBefore().key().getNodeId().getValue())
- && (change.getRootNode().getDataBefore().augmentation(NetconfNode.class) != null)
-
- )).collect(Collectors.toList());
- }
-
- /**
- * In the filtered collection checks if the change is a new write.
- *
- * @param change the change
- * @return boolean true if the change is a new write
- */
- private static boolean isCreate(DataTreeModification<Node> change) {
- return (change.getRootNode().getDataBefore() == null) && (change.getRootNode().getDataAfter() != null)
- && ModificationType.WRITE.equals(change.getRootNode().getModificationType());
- }
-
- /**
- * In the filtered collection checks if the modification is update.
- *
- * @param change the change
- * @return boolean true if the modification is update
- */
- private static boolean isUpdate(DataTreeModification<Node> change) {
- return ModificationType.SUBTREE_MODIFIED.equals(change.getRootNode().getModificationType());
- }
-
- /**
- * In the filtered collection checks if the node was deleted.
- *
- * @param change the change
- * @return boolean true if the node was deleted
- */
- private static boolean isDelete(DataTreeModification<Node> change) {
- return (change.getRootNode().getDataBefore() != null) && (change.getRootNode().getDataAfter() == null)
- && ModificationType.DELETE.equals(change.getRootNode().getModificationType());
- }
-}
Code Review / transportpce.git / blobdiff