bmp/bmp-impl/src/main/java/org/opendaylight/protocol/bmp/impl/config/BmpDeployerImpl.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.protocol.bmp.impl.config;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.Iterables;
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15 import java.net.InetSocketAddress;
  16 import java.util.Collection;
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.concurrent.TimeUnit;
  20 import org.checkerframework.checker.lock.qual.GuardedBy;
  21 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  22 import org.opendaylight.mdsal.binding.api.DataBroker;
  23 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  24 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  25 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  26 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  27 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTree;
  28 import org.opendaylight.mdsal.common.api.CommitInfo;
  29 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  30 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  31 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  32 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  33 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
  34 import org.opendaylight.protocol.bmp.api.BmpDispatcher;
  35 import org.opendaylight.protocol.bmp.impl.app.BmpMonitoringStationImpl;
  36 import org.opendaylight.protocol.bmp.impl.spi.BmpMonitoringStation;
  37 import org.opendaylight.protocol.util.Ipv4Util;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.OdlBmpMonitors;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.odl.bmp.monitors.BmpMonitorConfig;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.server.config.Server;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.BmpMonitor;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.MonitorId;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.bmp.monitor.Monitor;
  44 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  45 import org.opendaylight.yangtools.yang.binding.DataObject;
  46 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  47 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  48 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  49 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  50 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  51 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  52 import org.osgi.service.component.annotations.Reference;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 public final class BmpDeployerImpl implements ClusteredDataTreeChangeListener<OdlBmpMonitors>, AutoCloseable {
  57     private static final Logger LOG = LoggerFactory.getLogger(BmpDeployerImpl.class);
  58
  59     private static final long TIMEOUT_NS = TimeUnit.SECONDS.toNanos(5);
  60     private static final InstanceIdentifier<OdlBmpMonitors> ODL_BMP_MONITORS_IID =
  61             InstanceIdentifier.create(OdlBmpMonitors.class);
  62     private static final YangInstanceIdentifier BMP_MONITOR_YII = YangInstanceIdentifier.of(BmpMonitor.QNAME);
  63     private static final ContainerNode EMPTY_PARENT_NODE = Builders.containerBuilder()
  64         .withNodeIdentifier(new NodeIdentifier(BmpMonitor.QNAME))
  65         .addChild(ImmutableNodes.mapNodeBuilder(Monitor.QNAME).build())
  66         .build();
  67
  68     private final BmpDispatcher dispatcher;
  69     private final DataBroker dataBroker;
  70     private final DOMDataBroker domDataBroker;
  71     private final RIBExtensionConsumerContext extensions;
  72     private final BindingCodecTree codecTree;
  73     private final ClusterSingletonServiceProvider singletonProvider;
  74
  75     @GuardedBy("this")
  76     private final Map<MonitorId, BmpMonitoringStationImpl> bmpMonitorServices = new HashMap<>();
  77     @GuardedBy("this")
  78     private ListenerRegistration<BmpDeployerImpl> registration;
  79
  80     public BmpDeployerImpl(@Reference final BmpDispatcher dispatcher, @Reference final DataBroker dataBroker,
  81             @Reference final DOMDataBroker domDataBroker, @Reference final RIBExtensionConsumerContext extensions,
  82             @Reference final BindingCodecTree codecTree,
  83             @Reference final ClusterSingletonServiceProvider singletonProvider) {
  84         this.dispatcher = requireNonNull(dispatcher);
  85         this.dataBroker = requireNonNull(dataBroker);
  86         this.domDataBroker = requireNonNull(domDataBroker);
  87         this.extensions = requireNonNull(extensions);
  88         this.codecTree = requireNonNull(codecTree);
  89         this.singletonProvider = requireNonNull(singletonProvider);
  90     }
  91
  92     public synchronized void init() {
  93         final DOMDataTreeWriteTransaction wTx = this.domDataBroker.newWriteOnlyTransaction();
  94         wTx.merge(LogicalDatastoreType.OPERATIONAL, BMP_MONITOR_YII, EMPTY_PARENT_NODE);
  95         wTx.commit().addCallback(new FutureCallback<CommitInfo>() {
  96             @Override
  97             public void onSuccess(final CommitInfo result) {
  98                 LOG.trace("Successful commit");
  99             }
 100
 101             @Override
 102             public void onFailure(final Throwable trw) {
 103                 LOG.error("Failed commit", trw);
 104             }
 105         }, MoreExecutors.directExecutor());
 106         this.registration = dataBroker.registerDataTreeChangeListener(
 107             DataTreeIdentifier.create(LogicalDatastoreType.CONFIGURATION, ODL_BMP_MONITORS_IID), this);
 108     }
 109
 110     @Override
 111     public synchronized void onDataTreeChanged(final Collection<DataTreeModification<OdlBmpMonitors>> changes) {
 112         final DataTreeModification<OdlBmpMonitors> dataTreeModification = Iterables.getOnlyElement(changes);
 113         final Collection<? extends DataObjectModification<? extends DataObject>> rootNode =
 114             dataTreeModification.getRootNode().getModifiedChildren();
 115         if (rootNode.isEmpty()) {
 116             return;
 117         }
 118         rootNode.forEach(dto -> handleModification((DataObjectModification<BmpMonitorConfig>) dto));
 119     }
 120
 121     private synchronized void handleModification(final DataObjectModification<BmpMonitorConfig> config) {
 122         final ModificationType modificationType = config.getModificationType();
 123         LOG.trace("Bmp Monitor configuration has changed: {}, type modification {}", config, modificationType);
 124         switch (modificationType) {
 125             case DELETE:
 126                 removeBmpMonitor(config.getDataBefore().getMonitorId());
 127                 break;
 128             case SUBTREE_MODIFIED:
 129             case WRITE:
 130                 updateBmpMonitor(config.getDataAfter());
 131                 break;
 132             default:
 133                 break;
 134         }
 135     }
 136
 137     @SuppressWarnings("checkstyle:IllegalCatch")
 138     private synchronized void updateBmpMonitor(final BmpMonitorConfig bmpConfig) {
 139         final MonitorId monitorId = bmpConfig.getMonitorId();
 140         final BmpMonitoringStationImpl oldService = this.bmpMonitorServices.remove(monitorId);
 141         try {
 142             if (oldService != null) {
 143                 oldService.closeServiceInstance().get(TIMEOUT_NS, TimeUnit.NANOSECONDS);
 144                 oldService.close();
 145             }
 146
 147             final Server server = bmpConfig.getServer();
 148             final InetSocketAddress inetAddress =
 149                     Ipv4Util.toInetSocketAddress(server.getBindingAddress(), server.getBindingPort());
 150             final BmpMonitoringStationImpl monitor = new BmpMonitoringStationImpl(this.domDataBroker, this.dispatcher,
 151                 this.extensions, this.codecTree, this.singletonProvider, monitorId, inetAddress,
 152                 bmpConfig.nonnullMonitoredRouter().values());
 153             this.bmpMonitorServices.put(monitorId, monitor);
 154         } catch (final Exception e) {
 155             LOG.error("Failed to create Bmp Monitor {}.", monitorId, e);
 156         }
 157
 158     }
 159
 160     @SuppressWarnings("checkstyle:IllegalCatch")
 161     private synchronized void removeBmpMonitor(final MonitorId monitorId) {
 162         final BmpMonitoringStation service = this.bmpMonitorServices.remove(monitorId);
 163         if (service != null) {
 164             LOG.debug("Closing Bmp Monitor {}.", monitorId);
 165             try {
 166                 service.close();
 167             } catch (final Exception e) {
 168                 LOG.error("Failed to close Bmp Monitor {}.", monitorId, e);
 169             }
 170         }
 171     }
 172
 173     @Override
 174     public synchronized void close() {
 175         if (this.registration != null) {
 176             this.registration.close();
 177             this.registration = null;
 178         }
 179     }
 180 }