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 javax.annotation.concurrent.GuardedBy;
  18 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  19 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  20 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  21 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  22 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  23 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  26 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  27 import org.opendaylight.protocol.bmp.api.BmpDispatcher;
  28 import org.opendaylight.protocol.bmp.impl.api.BmpDeployer;
  29 import org.opendaylight.protocol.bmp.impl.app.BmpMonitoringStationImpl;
  30 import org.opendaylight.protocol.bmp.impl.spi.BmpMonitoringStation;
  31 import org.opendaylight.protocol.util.Ipv4Util;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.OdlBmpMonitors;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.odl.bmp.monitors.BmpMonitorConfig;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.odl.bmp.monitors.BmpMonitorConfigKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.config.rev170517.server.config.Server;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.BmpMonitor;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.MonitorId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.monitor.rev150512.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.binding.KeyedInstanceIdentifier;
  43 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  44 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  45 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  46 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  47 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51 public class BmpDeployerImpl implements BmpDeployer, ClusteredDataTreeChangeListener<OdlBmpMonitors>, AutoCloseable {
  52     private static final Logger LOG = LoggerFactory.getLogger(BmpDeployerImpl.class);
  53
  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 final static ContainerNode EMPTY_PARENT_NODE = Builders.containerBuilder().withNodeIdentifier(
  59         new NodeIdentifier(BmpMonitor.QNAME)).addChild(ImmutableNodes.mapNodeBuilder(Monitor.QNAME).build()).build();
  60     private final BmpDispatcher dispatcher;
  61     @GuardedBy("this")
  62     private final Map<MonitorId, BmpMonitoringStationImpl> bmpMonitorServices = new HashMap<>();
  63     private final BmpDeployerDependencies bmpDeployerDependencies;
  64     @GuardedBy("this")
  65     private ListenerRegistration<BmpDeployerImpl> registration;
  66
  67     public BmpDeployerImpl(final BmpDispatcher dispatcher, final BmpDeployerDependencies bmpDeployerDependencies) {
  68         this.dispatcher = requireNonNull(dispatcher);
  69         this.bmpDeployerDependencies = requireNonNull(bmpDeployerDependencies);
  70     }
  71
  72     public synchronized void register() {
  73         final DOMDataWriteTransaction wTx = this.bmpDeployerDependencies.getDomDataBroker().newWriteOnlyTransaction();
  74         wTx.merge(LogicalDatastoreType.OPERATIONAL, BMP_MONITOR_YII, EMPTY_PARENT_NODE);
  75         wTx.submit();
  76         this.registration = this.bmpDeployerDependencies.getDataBroker().registerDataTreeChangeListener(
  77                 new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, ODL_BMP_MONITORS_IID), this);
  78     }
  79
  80     @Override
  81     public synchronized void onDataTreeChanged(final Collection<DataTreeModification<OdlBmpMonitors>> changes) {
  82         final DataTreeModification<OdlBmpMonitors> dataTreeModification = Iterables.getOnlyElement(changes);
  83         final Collection<DataObjectModification<? extends DataObject>> rootNode = dataTreeModification.getRootNode()
  84             .getModifiedChildren();
  85         if (rootNode.isEmpty()) {
  86             return;
  87         }
  88         rootNode.forEach(dto -> handleModification((DataObjectModification<BmpMonitorConfig>) dto));
  89     }
  90
  91     private void handleModification(final DataObjectModification<BmpMonitorConfig> config) {
  92         final ModificationType modificationType = config.getModificationType();
  93         LOG.trace("Bmp Monitor configuration has changed: {}, type modification {}", config, modificationType);
  94         switch (modificationType) {
  95             case DELETE:
  96                 removeBmpMonitor(config.getDataBefore().getMonitorId());
  97                 break;
  98             case SUBTREE_MODIFIED:
  99             case WRITE:
 100                 updateBmpMonitor(config.getDataAfter());
 101                 break;
 102             default:
 103                 break;
 104         }
 105     }
 106
 107     private void updateBmpMonitor(final BmpMonitorConfig bmpConfig) {
 108         final MonitorId monitorId = bmpConfig.getMonitorId();
 109         final BmpMonitoringStationImpl oldService = this.bmpMonitorServices.remove(monitorId);
 110         try {
 111             if (oldService != null) {
 112                 oldService.closeServiceInstance().get();
 113                 oldService.close();
 114             }
 115
 116             final Server server = bmpConfig.getServer();
 117             final InetSocketAddress inetAddress =
 118                     Ipv4Util.toInetSocketAddress(server.getBindingAddress(), server.getBindingPort());
 119             final BmpMonitoringStationImpl monitor = new BmpMonitoringStationImpl(this.bmpDeployerDependencies,
 120                 this.dispatcher, monitorId, inetAddress, bmpConfig.getMonitoredRouter());
 121             this.bmpMonitorServices.put(monitorId, monitor);
 122         } catch (final Exception e) {
 123             LOG.error("Failed to create Bmp Monitor {}.", monitorId, e);
 124         }
 125
 126     }
 127
 128     private void removeBmpMonitor(final MonitorId monitorId) {
 129         final BmpMonitoringStation service = this.bmpMonitorServices.remove(monitorId);
 130         if (service != null) {
 131             LOG.debug("Closing Bmp Monitor {}.", monitorId);
 132             try {
 133                 service.close();
 134             } catch (final Exception e) {
 135                 LOG.error("Failed to close Bmp Monitor {}.", monitorId, e);
 136             }
 137         }
 138     }
 139
 140     @Override
 141     public synchronized void writeBmpMonitor(final BmpMonitorConfig bmpConfig) throws TransactionCommitFailedException {
 142         final KeyedInstanceIdentifier<BmpMonitorConfig, BmpMonitorConfigKey> iid = ODL_BMP_MONITORS_IID
 143             .child(BmpMonitorConfig.class, bmpConfig.getKey());
 144
 145         final WriteTransaction wTx = this.bmpDeployerDependencies.getDataBroker().newWriteOnlyTransaction();
 146         wTx.put(LogicalDatastoreType.CONFIGURATION, iid, bmpConfig, true);
 147         wTx.submit().checkedGet();
 148     }
 149
 150     @Override
 151     public synchronized void deleteBmpMonitor(final MonitorId monitorId)
 152             throws TransactionCommitFailedException {
 153         final KeyedInstanceIdentifier<BmpMonitorConfig, BmpMonitorConfigKey> iid = ODL_BMP_MONITORS_IID
 154             .child(BmpMonitorConfig.class, new BmpMonitorConfigKey(monitorId));
 155
 156         final WriteTransaction wTx = this.bmpDeployerDependencies.getDataBroker().newWriteOnlyTransaction();
 157         wTx.delete(LogicalDatastoreType.CONFIGURATION, iid);
 158         wTx.submit().checkedGet();
 159     }
 160
 161     @Override
 162     public synchronized void close() throws Exception {
 163         if (this.registration != null) {
 164             this.registration.close();
 165         }
 166     }
 167 }