neutron-vpp-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/vpp/mapper/hostconfigs/VppNodeListener.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. 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
   9 package org.opendaylight.groupbasedpolicy.neutron.vpp.mapper.hostconfigs;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  14 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  15 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.groupbasedpolicy.neutron.vpp.mapper.SocketInfo;
  18 import org.opendaylight.groupbasedpolicy.neutron.vpp.mapper.util.HostconfigUtil;
  19 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  20 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.RendererName;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.Renderers;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.RendererKey;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.RendererNodes;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.nodes.RendererNode;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.hostconfig.rev150712.hostconfig.attributes.Hostconfigs;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.hostconfig.rev150712.hostconfig.attributes.hostconfigs.Hostconfig;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.hostconfig.rev150712.hostconfig.attributes.hostconfigs.HostconfigKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 public class VppNodeListener extends DataTreeChangeHandler<RendererNode> {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(VppNodeListener.class);
  41
  42     private SocketInfo socketInfo;
  43     public static final RendererName VPP_RENDERER_NAME = new RendererName("vpp-renderer");
  44
  45     public VppNodeListener(DataBroker dataBroker, SocketInfo socketInfo) {
  46         super(dataBroker);
  47         this.socketInfo = socketInfo;
  48         registerDataTreeChangeListener(new DataTreeIdentifier<>(
  49                 LogicalDatastoreType.OPERATIONAL, getVppNodeWildcardIid()));
  50     }
  51
  52     private InstanceIdentifier<RendererNode> getVppNodeWildcardIid() {
  53         return InstanceIdentifier.builder(Renderers.class)
  54             .child(Renderer.class, new RendererKey(VPP_RENDERER_NAME))
  55             .child(RendererNodes.class)
  56             .child(RendererNode.class)
  57             .build();
  58     }
  59
  60     @Override
  61     protected void onWrite(DataObjectModification<RendererNode> rootNode,
  62             InstanceIdentifier<RendererNode> rootIdentifier) {
  63         writeData(rootNode.getDataAfter());
  64     }
  65
  66     @Override
  67     protected void onDelete(DataObjectModification<RendererNode> rootNode,
  68             InstanceIdentifier<RendererNode> rootIdentifier) {
  69         deleteData(rootNode.getDataBefore());
  70     }
  71
  72     @Override
  73     protected void onSubtreeModified(DataObjectModification<RendererNode> rootNode,
  74             InstanceIdentifier<RendererNode> rootIdentifier) {
  75         deleteData(rootNode.getDataBefore());
  76         writeData(rootNode.getDataAfter());
  77     }
  78
  79     private void writeData(RendererNode rendererNode) {
  80         NodeKey nodeKey = rendererNode.getNodePath().firstKeyOf(Node.class);
  81         WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  82         Hostconfig hcData = HostconfigUtil.createHostconfigsDataFor(nodeKey.getNodeId(), socketInfo);
  83         wTx.put(LogicalDatastoreType.OPERATIONAL, hostconfigIid(nodeKey.getNodeId()), hcData);
  84         DataStoreHelper.submitToDs(wTx);
  85         LOG.info("Hostconfig data written to DS for VPP node {}", nodeKey);
  86     }
  87
  88     private InstanceIdentifier<Hostconfig> hostconfigIid(NodeId nodeId) {
  89         return InstanceIdentifier.builder(Neutron.class)
  90             .child(Hostconfigs.class)
  91             .child(Hostconfig.class, new HostconfigKey(nodeId.getValue(), HostconfigUtil.L2_HOST_TYPE))
  92             .build();
  93     }
  94
  95     private void deleteData(RendererNode rendererNode) {
  96         NodeKey nodeKey = rendererNode.getNodePath().firstKeyOf(Node.class);
  97         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
  98         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL, hostconfigIid(nodeKey.getNodeId()), rwTx);
  99         DataStoreHelper.submitToDs(rwTx);
 100         LOG.info("Hostconfig data removed from DS for VPP node {}", nodeKey);
 101     }
 102 }