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