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.List;
  19 import java.util.Map;
  20 import java.util.concurrent.TimeUnit;
  21 import javax.annotation.PreDestroy;
  22 import javax.inject.Inject;
  23 import javax.inject.Singleton;
  24 import org.checkerframework.checker.lock.qual.GuardedBy;
  25 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  26 import org.opendaylight.mdsal.binding.api.DataBroker;
  27 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  28 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  29 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  30 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  31 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTree;
  32 import org.opendaylight.mdsal.common.api.CommitInfo;
  33 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  34 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  35 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  36 import org.opendaylight.mdsal.singleton.api.ClusterSingletonServiceProvider;
  37 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
  38 import org.opendaylight.protocol.bmp.api.BmpDispatcher;
  39 import org.opendaylight.protocol.bmp.impl.app.BmpMonitoringStationImpl;
  40 import org.opendaylight.protocol.bmp.impl.spi.BmpMonitoringStation;
  41 import org.opendaylight.protocol.util.Ipv4Util;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.OdlBmpMonitors;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.odl.bmp.monitors.BmpMonitorConfig;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev200120.server.config.Server;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.BmpMonitor;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.MonitorId;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev200120.bmp.monitor.Monitor;
  48 import org.opendaylight.yangtools.concepts.Registration;
  49 import org.opendaylight.yangtools.yang.binding.DataObject;
  50 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  51 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  52 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  53 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  54 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  55 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  56 import org.osgi.service.component.annotations.Activate;
  57 import org.osgi.service.component.annotations.Component;
  58 import org.osgi.service.component.annotations.Deactivate;
  59 import org.osgi.service.component.annotations.Reference;
  60 import org.slf4j.Logger;
  61 import org.slf4j.LoggerFactory;
  62
  63 @Singleton
  64 @Component(service = {})
  65 public final class BmpDeployerImpl implements ClusteredDataTreeChangeListener<OdlBmpMonitors>, AutoCloseable {
  66     private static final Logger LOG = LoggerFactory.getLogger(BmpDeployerImpl.class);
  67
  68     private static final long TIMEOUT_NS = TimeUnit.SECONDS.toNanos(5);
  69     private static final InstanceIdentifier<OdlBmpMonitors> ODL_BMP_MONITORS_IID =
  70             InstanceIdentifier.create(OdlBmpMonitors.class);
  71     private static final YangInstanceIdentifier BMP_MONITOR_YII = YangInstanceIdentifier.of(BmpMonitor.QNAME);
  72     private static final ContainerNode EMPTY_PARENT_NODE = Builders.containerBuilder()
  73         .withNodeIdentifier(new NodeIdentifier(BmpMonitor.QNAME))
  74         .addChild(ImmutableNodes.mapNodeBuilder(Monitor.QNAME).build())
  75         .build();
  76
  77     private final BmpDispatcher dispatcher;
  78     private final DOMDataBroker domDataBroker;
  79     private final RIBExtensionConsumerContext extensions;
  80     private final BindingCodecTree codecTree;
  81     private final ClusterSingletonServiceProvider singletonProvider;
  82
  83     @GuardedBy("this")
  84     private final Map<MonitorId, BmpMonitoringStationImpl> bmpMonitorServices = new HashMap<>();
  85     @GuardedBy("this")
  86     private Registration registration;
  87
  88     @Activate
  89     @Inject
  90     public BmpDeployerImpl(@Reference final BmpDispatcher dispatcher, @Reference final DataBroker dataBroker,
  91             @Reference final DOMDataBroker domDataBroker, @Reference final RIBExtensionConsumerContext extensions,
  92             @Reference final BindingCodecTree codecTree,
  93             @Reference final ClusterSingletonServiceProvider singletonProvider) {
  94         this.dispatcher = requireNonNull(dispatcher);
  95         this.domDataBroker = requireNonNull(domDataBroker);
  96         this.extensions = requireNonNull(extensions);
  97         this.codecTree = requireNonNull(codecTree);
  98         this.singletonProvider = requireNonNull(singletonProvider);
  99
 100         final DOMDataTreeWriteTransaction wTx = domDataBroker.newWriteOnlyTransaction();
 101         wTx.merge(LogicalDatastoreType.OPERATIONAL, BMP_MONITOR_YII, EMPTY_PARENT_NODE);
 102         wTx.commit().addCallback(new FutureCallback<CommitInfo>() {
 103             @Override
 104             public void onSuccess(final CommitInfo result) {
 105                 LOG.trace("Successful commit");
 106             }
 107
 108             @Override
 109             public void onFailure(final Throwable trw) {
 110                 LOG.error("Failed commit", trw);
 111             }
 112         }, MoreExecutors.directExecutor());
 113         registration = dataBroker.registerDataTreeChangeListener(
 114             DataTreeIdentifier.create(LogicalDatastoreType.CONFIGURATION, ODL_BMP_MONITORS_IID), this);
 115     }
 116
 117     @Override
 118     public synchronized void onDataTreeChanged(final List<DataTreeModification<OdlBmpMonitors>> changes) {
 119         final DataTreeModification<OdlBmpMonitors> dataTreeModification = Iterables.getOnlyElement(changes);
 120         final Collection<? extends DataObjectModification<? extends DataObject>> rootNode =
 121             dataTreeModification.getRootNode().getModifiedChildren();
 122         if (rootNode.isEmpty()) {
 123             return;
 124         }
 125         rootNode.forEach(dto -> handleModification((DataObjectModification<BmpMonitorConfig>) dto));
 126     }
 127
 128     private synchronized void handleModification(final DataObjectModification<BmpMonitorConfig> config) {
 129         final ModificationType modificationType = config.getModificationType();
 130         LOG.trace("Bmp Monitor configuration has changed: {}, type modification {}", config, modificationType);
 131         switch (modificationType) {
 132             case DELETE:
 133                 removeBmpMonitor(config.getDataBefore().getMonitorId());
 134                 break;
 135             case SUBTREE_MODIFIED:
 136             case WRITE:
 137                 updateBmpMonitor(config.getDataAfter());
 138                 break;
 139             default:
 140                 break;
 141         }
 142     }
 143
 144     @SuppressWarnings("checkstyle:IllegalCatch")
 145     private synchronized void updateBmpMonitor(final BmpMonitorConfig bmpConfig) {
 146         final MonitorId monitorId = bmpConfig.getMonitorId();
 147         final BmpMonitoringStationImpl oldService = bmpMonitorServices.remove(monitorId);
 148         try {
 149             if (oldService != null) {
 150                 oldService.closeServiceInstance().get(TIMEOUT_NS, TimeUnit.NANOSECONDS);
 151                 oldService.close();
 152             }
 153
 154             final Server server = bmpConfig.getServer();
 155             final InetSocketAddress inetAddress =
 156                     Ipv4Util.toInetSocketAddress(server.getBindingAddress(), server.getBindingPort());
 157             final BmpMonitoringStationImpl monitor = new BmpMonitoringStationImpl(domDataBroker, dispatcher,
 158                 extensions, codecTree, singletonProvider, monitorId, inetAddress,
 159                 bmpConfig.nonnullMonitoredRouter().values());
 160             bmpMonitorServices.put(monitorId, monitor);
 161         } catch (final Exception e) {
 162             LOG.error("Failed to create Bmp Monitor {}.", monitorId, e);
 163         }
 164
 165     }
 166
 167     @SuppressWarnings("checkstyle:IllegalCatch")
 168     private synchronized void removeBmpMonitor(final MonitorId monitorId) {
 169         final BmpMonitoringStation service = bmpMonitorServices.remove(monitorId);
 170         if (service != null) {
 171             LOG.debug("Closing Bmp Monitor {}.", monitorId);
 172             try {
 173                 service.close();
 174             } catch (final Exception e) {
 175                 LOG.error("Failed to close Bmp Monitor {}.", monitorId, e);
 176             }
 177         }
 178     }
 179
 180     @Override
 181     @Deactivate
 182     @PreDestroy
 183     public synchronized void close() {
 184         if (registration != null) {
 185             registration.close();
 186             registration = null;
 187         }
 188     }
 189 }