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 java.net.InetSocketAddress;
  14 import java.util.Collection;
  15 import java.util.HashMap;
  16 import java.util.Map;
  17 import java.util.concurrent.TimeUnit;
  18 import javax.annotation.concurrent.GuardedBy;
  19 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  20 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  21 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  22 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  23 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  26 import org.opendaylight.protocol.bmp.api.BmpDispatcher;
  27 import org.opendaylight.protocol.bmp.impl.app.BmpMonitoringStationImpl;
  28 import org.opendaylight.protocol.bmp.impl.spi.BmpMonitoringStation;
  29 import org.opendaylight.protocol.util.Ipv4Util;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.OdlBmpMonitors;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.odl.bmp.monitors.BmpMonitorConfig;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.server.config.Server;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.BmpMonitor;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.MonitorId;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.bmp.monitor.Monitor;
  36 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  37 import org.opendaylight.yangtools.yang.binding.DataObject;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  40 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  41 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  43 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class BmpDeployerImpl implements ClusteredDataTreeChangeListener<OdlBmpMonitors>, AutoCloseable {
  48     private static final Logger LOG = LoggerFactory.getLogger(BmpDeployerImpl.class);
  49
  50     private static final long TIMEOUT_NS = TimeUnit.SECONDS.toNanos(5);
  51     private static final InstanceIdentifier<OdlBmpMonitors> ODL_BMP_MONITORS_IID =
  52             InstanceIdentifier.create(OdlBmpMonitors.class);
  53     private static final YangInstanceIdentifier BMP_MONITOR_YII =
  54             YangInstanceIdentifier.of(BmpMonitor.QNAME);
  55     private final static ContainerNode EMPTY_PARENT_NODE = Builders.containerBuilder().withNodeIdentifier(
  56             new NodeIdentifier(BmpMonitor.QNAME)).addChild(ImmutableNodes.mapNodeBuilder(Monitor.QNAME).build()).build();
  57     private final BmpDispatcher dispatcher;
  58     @GuardedBy("this")
  59     private final Map<MonitorId, BmpMonitoringStationImpl> bmpMonitorServices = new HashMap<>();
  60     private final BmpDeployerDependencies bmpDeployerDependencies;
  61     @GuardedBy("this")
  62     private ListenerRegistration<BmpDeployerImpl> registration;
  63
  64     public BmpDeployerImpl(final BmpDispatcher dispatcher, final BmpDeployerDependencies bmpDeployerDependencies) {
  65         this.dispatcher = requireNonNull(dispatcher);
  66         this.bmpDeployerDependencies = requireNonNull(bmpDeployerDependencies);
  67     }
  68
  69     public synchronized void init() {
  70         final DOMDataWriteTransaction wTx = this.bmpDeployerDependencies.getDomDataBroker().newWriteOnlyTransaction();
  71         wTx.merge(LogicalDatastoreType.OPERATIONAL, BMP_MONITOR_YII, EMPTY_PARENT_NODE);
  72         wTx.submit();
  73         this.registration = this.bmpDeployerDependencies.getDataBroker().registerDataTreeChangeListener(
  74                 new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, ODL_BMP_MONITORS_IID), this);
  75     }
  76
  77     @Override
  78     public synchronized void onDataTreeChanged(final Collection<DataTreeModification<OdlBmpMonitors>> changes) {
  79         final DataTreeModification<OdlBmpMonitors> dataTreeModification = Iterables.getOnlyElement(changes);
  80         final Collection<DataObjectModification<? extends DataObject>> rootNode = dataTreeModification.getRootNode()
  81                 .getModifiedChildren();
  82         if (rootNode.isEmpty()) {
  83             return;
  84         }
  85         rootNode.forEach(dto -> handleModification((DataObjectModification<BmpMonitorConfig>) dto));
  86     }
  87
  88     private synchronized void handleModification(final DataObjectModification<BmpMonitorConfig> config) {
  89         final ModificationType modificationType = config.getModificationType();
  90         LOG.trace("Bmp Monitor configuration has changed: {}, type modification {}", config, modificationType);
  91         switch (modificationType) {
  92             case DELETE:
  93                 removeBmpMonitor(config.getDataBefore().getMonitorId());
  94                 break;
  95             case SUBTREE_MODIFIED:
  96             case WRITE:
  97                 updateBmpMonitor(config.getDataAfter());
  98                 break;
  99             default:
 100                 break;
 101         }
 102     }
 103
 104     private synchronized void updateBmpMonitor(final BmpMonitorConfig bmpConfig) {
 105         final MonitorId monitorId = bmpConfig.getMonitorId();
 106         final BmpMonitoringStationImpl oldService = this.bmpMonitorServices.remove(monitorId);
 107         try {
 108             if (oldService != null) {
 109                 oldService.closeServiceInstance().get(TIMEOUT_NS, TimeUnit.NANOSECONDS);
 110                 oldService.close();
 111             }
 112
 113             final Server server = bmpConfig.getServer();
 114             final InetSocketAddress inetAddress =
 115                     Ipv4Util.toInetSocketAddress(server.getBindingAddress(), server.getBindingPort());
 116             final BmpMonitoringStationImpl monitor = new BmpMonitoringStationImpl(this.bmpDeployerDependencies,
 117                     this.dispatcher, monitorId, inetAddress, bmpConfig.getMonitoredRouter());
 118             this.bmpMonitorServices.put(monitorId, monitor);
 119         } catch (final Exception e) {
 120             LOG.error("Failed to create Bmp Monitor {}.", monitorId, e);
 121         }
 122
 123     }
 124
 125     private synchronized void removeBmpMonitor(final MonitorId monitorId) {
 126         final BmpMonitoringStation service = this.bmpMonitorServices.remove(monitorId);
 127         if (service != null) {
 128             LOG.debug("Closing Bmp Monitor {}.", monitorId);
 129             try {
 130                 service.close();
 131             } catch (final Exception e) {
 132                 LOG.error("Failed to close Bmp Monitor {}.", monitorId, e);
 133             }
 134         }
 135     }
 136
 137     @Override
 138     public synchronized void close() {
 139         if (this.registration != null) {
 140             this.registration.close();
 141         }
 142     }
 143 }