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.concurrent.GuardedBy;
  21 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  22 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  23 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  24 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  25 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  26 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  27 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  28 import org.opendaylight.mdsal.common.api.CommitInfo;
  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.rev180329.OdlBmpMonitors;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev180329.odl.bmp.monitors.BmpMonitorConfig;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev180329.server.config.Server;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev180329.BmpMonitor;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev180329.MonitorId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev180329.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 DOMDataWriteTransaction wTx = this.bmpDeployerDependencies.getDomDataBroker().newWriteOnlyTransaction();
  75         wTx.merge(LogicalDatastoreType.OPERATIONAL, BMP_MONITOR_YII, EMPTY_PARENT_NODE);
  76         wTx.commit().addCallback(new FutureCallback<CommitInfo>() {
  77             @Override
  78             public void onSuccess(final CommitInfo result) {
  79                 LOG.trace("Successful commit");
  80             }
  81
  82             @Override
  83             public void onFailure(final Throwable trw) {
  84                 LOG.error("Failed commit", trw);
  85             }
  86         }, MoreExecutors.directExecutor());
  87         this.registration = this.bmpDeployerDependencies.getDataBroker().registerDataTreeChangeListener(
  88                 new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, ODL_BMP_MONITORS_IID), this);
  89     }
  90
  91     @Override
  92     public synchronized void onDataTreeChanged(final Collection<DataTreeModification<OdlBmpMonitors>> changes) {
  93         final DataTreeModification<OdlBmpMonitors> dataTreeModification = Iterables.getOnlyElement(changes);
  94         final Collection<DataObjectModification<? extends DataObject>> rootNode = dataTreeModification.getRootNode()
  95                 .getModifiedChildren();
  96         if (rootNode.isEmpty()) {
  97             return;
  98         }
  99         rootNode.forEach(dto -> handleModification((DataObjectModification<BmpMonitorConfig>) dto));
 100     }
 101
 102     private synchronized void handleModification(final DataObjectModification<BmpMonitorConfig> config) {
 103         final ModificationType modificationType = config.getModificationType();
 104         LOG.trace("Bmp Monitor configuration has changed: {}, type modification {}", config, modificationType);
 105         switch (modificationType) {
 106             case DELETE:
 107                 removeBmpMonitor(config.getDataBefore().getMonitorId());
 108                 break;
 109             case SUBTREE_MODIFIED:
 110             case WRITE:
 111                 updateBmpMonitor(config.getDataAfter());
 112                 break;
 113             default:
 114                 break;
 115         }
 116     }
 117
 118     @SuppressWarnings("checkstyle:IllegalCatch")
 119     private synchronized void updateBmpMonitor(final BmpMonitorConfig bmpConfig) {
 120         final MonitorId monitorId = bmpConfig.getMonitorId();
 121         final BmpMonitoringStationImpl oldService = this.bmpMonitorServices.remove(monitorId);
 122         try {
 123             if (oldService != null) {
 124                 oldService.closeServiceInstance().get(TIMEOUT_NS, TimeUnit.NANOSECONDS);
 125                 oldService.close();
 126             }
 127
 128             final Server server = bmpConfig.getServer();
 129             final InetSocketAddress inetAddress =
 130                     Ipv4Util.toInetSocketAddress(server.getBindingAddress(), server.getBindingPort());
 131             final BmpMonitoringStationImpl monitor = new BmpMonitoringStationImpl(this.bmpDeployerDependencies,
 132                     this.dispatcher, monitorId, inetAddress, bmpConfig.getMonitoredRouter());
 133             this.bmpMonitorServices.put(monitorId, monitor);
 134         } catch (final Exception e) {
 135             LOG.error("Failed to create Bmp Monitor {}.", monitorId, e);
 136         }
 137
 138     }
 139
 140     @SuppressWarnings("checkstyle:IllegalCatch")
 141     private synchronized void removeBmpMonitor(final MonitorId monitorId) {
 142         final BmpMonitoringStation service = this.bmpMonitorServices.remove(monitorId);
 143         if (service != null) {
 144             LOG.debug("Closing Bmp Monitor {}.", monitorId);
 145             try {
 146                 service.close();
 147             } catch (final Exception e) {
 148                 LOG.error("Failed to close Bmp Monitor {}.", monitorId, e);
 149             }
 150         }
 151     }
 152
 153     @Override
 154     public synchronized void close() {
 155         if (this.registration != null) {
 156             this.registration.close();
 157             this.registration = null;
 158         }
 159     }
 160 }