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