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