neutron-vpp-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/vpp/mapper/processors/PortHandler.java

   1 /*\r
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.\r
   3  *\r
   4  * This program and the accompanying materials are made available under the\r
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html\r
   7  */\r
   8 \r
   9 package org.opendaylight.groupbasedpolicy.neutron.vpp.mapper.processors;\r
  10 \r
  11 import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;\r
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;\r
  13 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;\r
  14 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;\r
  15 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;\r
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;\r
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;\r
  18 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;\r
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;\r
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;\r
  21 import org.opendaylight.groupbasedpolicy.neutron.vpp.mapper.SocketInfo;\r
  22 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;\r
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;\r
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.UniqueId;\r
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.Mappings;\r
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.GbpByNeutronMappings;\r
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.BaseEndpointsByPorts;\r
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.base.endpoints.by.ports.BaseEndpointByPort;\r
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.base.endpoints.by.ports.BaseEndpointByPortKey;\r
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.Config;\r
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.VppEndpoint;\r
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.VppEndpointBuilder;\r
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.VppEndpointKey;\r
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.vpp.endpoint._interface.type.choice.VhostUserCaseBuilder;\r
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.binding.rev150712.PortBindingExtension;\r
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;\r
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;\r
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.PortKey;\r
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;\r
  40 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;\r
  41 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;\r
  42 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;\r
  43 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;\r
  44 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;\r
  45 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;\r
  46 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;\r
  47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;\r
  48 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;\r
  49 import org.slf4j.Logger;\r
  50 import org.slf4j.LoggerFactory;\r
  51 \r
  52 import com.google.common.annotations.VisibleForTesting;\r
  53 import com.google.common.base.Optional;\r
  54 \r
  55 public class PortHandler implements TransactionChainListener {\r
  56 \r
  57     private static final Logger LOG = LoggerFactory.getLogger(MappingProvider.class);\r
  58 \r
  59     private static final String COMPUTE_OWNER = "compute";\r
  60     private static final String VHOST_USER = "vhostuser";\r
  61     private static final String NETCONF_TOPOLOGY_ID = "topology-netconf";\r
  62 \r
  63     private BindingTransactionChain transactionChain;\r
  64     BaseEndpointByPortListener portByBaseEpListener;\r
  65     DataBroker dataBroker;\r
  66     SocketInfo socketInfo;\r
  67 \r
  68     PortHandler(DataBroker dataBroker, SocketInfo socketInfo) {\r
  69         this.dataBroker = dataBroker;\r
  70         this.socketInfo = socketInfo;\r
  71         transactionChain = this.dataBroker.createTransactionChain(this);\r
  72     }\r
  73 \r
  74     void processCreated(Port port) {\r
  75         ReadTransaction rTx = dataBroker.newReadOnlyTransaction();\r
  76         Optional<BaseEndpointByPort> optBaseEpByPort = DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL,\r
  77                 createBaseEpByPortIid(port.getUuid()), rTx);\r
  78         if (!optBaseEpByPort.isPresent()) {\r
  79             return;\r
  80         }\r
  81         processCreatedData(port, optBaseEpByPort.get());\r
  82     }\r
  83 \r
  84     void processCreated(BaseEndpointByPort bebp) {\r
  85         ReadTransaction rTx = dataBroker.newReadOnlyTransaction();\r
  86         Optional<Port> optPort = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,\r
  87                 createPortIid(bebp.getPortId()), rTx);\r
  88         if (!optPort.isPresent()) {\r
  89             return;\r
  90         }\r
  91         processCreatedData(optPort.get(), bebp);\r
  92     }\r
  93 \r
  94     @VisibleForTesting\r
  95     void processCreatedData(Port port, BaseEndpointByPort bebp) {\r
  96         if (isValidVhostUser(port)) {\r
  97             VppEndpoint vppEp = buildVhostUserEndpoint(port, bebp);\r
  98             writeVppEndpoint(createVppEndpointIid(vppEp.getKey()), vppEp);\r
  99             LOG.debug("Created vpp-endpoint {}", vppEp);\r
 100         }\r
 101     }\r
 102 \r
 103     private boolean isValidVhostUser(Port port) {\r
 104         PortBindingExtension portBindingExt = port.getAugmentation(PortBindingExtension.class);\r
 105         if (portBindingExt != null) {\r
 106             String vifType = portBindingExt.getVifType();\r
 107             String deviceOwner = port.getDeviceOwner();\r
 108             if (vifType != null && deviceOwner != null) {\r
 109                 if (vifType.contains(VHOST_USER) && deviceOwner.contains(COMPUTE_OWNER)) {\r
 110                     return true;\r
 111                 }\r
 112             }\r
 113         }\r
 114         return false;\r
 115     }\r
 116 \r
 117     void processUpdated(Port original, Port delta) {\r
 118         if (isValidVhostUser(original)) {\r
 119             ReadOnlyTransaction rTx = dataBroker.newReadOnlyTransaction();\r
 120             Optional<BaseEndpointByPort> optBebp = DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL,\r
 121                     createBaseEpByPortIid(original.getUuid()), rTx);\r
 122             rTx.close();\r
 123             if (!optBebp.isPresent()) {\r
 124                 return;\r
 125             }\r
 126             processDeleted(optBebp.get());\r
 127         }\r
 128         processCreated(delta);\r
 129     }\r
 130 \r
 131     void processDeleted(BaseEndpointByPort bebp) {\r
 132         VppEndpointKey vppEpKey = new VppEndpointKey(bebp.getAddress(), bebp.getAddressType(), bebp.getContextId(),\r
 133                 bebp.getContextType());\r
 134         InstanceIdentifier<VppEndpoint> vppEpIid = createVppEndpointIid(vppEpKey);\r
 135         ReadOnlyTransaction rTx = transactionChain.newReadOnlyTransaction();\r
 136         Optional<VppEndpoint> readVppEp = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION, vppEpIid, rTx);\r
 137         rTx.close();\r
 138         if (readVppEp.isPresent()) {\r
 139             writeVppEndpoint(vppEpIid, null);\r
 140             LOG.debug("Deleted vpp-endpoint {}", vppEpKey);\r
 141         }\r
 142     }\r
 143 \r
 144     private void writeVppEndpoint(InstanceIdentifier<VppEndpoint> vppEpIid, VppEndpoint vppEp) {\r
 145         WriteTransaction wTx = transactionChain.newWriteOnlyTransaction();\r
 146         if (vppEp != null) {\r
 147             wTx.put(LogicalDatastoreType.CONFIGURATION, vppEpIid, vppEp, true);\r
 148         } else {\r
 149             wTx.delete(LogicalDatastoreType.CONFIGURATION, vppEpIid);\r
 150         }\r
 151         try {\r
 152             wTx.submit().checkedGet();\r
 153         } catch (TransactionCommitFailedException e) {\r
 154             LOG.error("Transaction chain commit failed. {}", e);\r
 155             transactionChain.close();\r
 156             transactionChain = dataBroker.createTransactionChain(this);\r
 157         }\r
 158     }\r
 159 \r
 160     @VisibleForTesting\r
 161     VppEndpoint buildVhostUserEndpoint(Port port, BaseEndpointByPort bebp) {\r
 162         PortBindingExtension portBinding = port.getAugmentation(PortBindingExtension.class);\r
 163         String socket = socketInfo.getSocketPath() + socketInfo.getSocketPrefix() + bebp.getPortId().getValue();\r
 164         return new VppEndpointBuilder().setDescription("neutron port")\r
 165             .setContextId(bebp.getContextId())\r
 166             .setContextType(bebp.getContextType())\r
 167             .setAddress(bebp.getAddress())\r
 168             .setInterfaceTypeChoice(new VhostUserCaseBuilder().setSocket(socket).build())\r
 169             .setAddressType(bebp.getAddressType())\r
 170             .setVppInterfaceName(bebp.getPortId().getValue())\r
 171             .setVppNodePath(createNodeIid(new NodeId(portBinding.getHostId())))\r
 172             .build();\r
 173     }\r
 174 \r
 175     private InstanceIdentifier<Node> createNodeIid(NodeId nodeId) {\r
 176         return InstanceIdentifier.builder(NetworkTopology.class)\r
 177             .child(Topology.class, new TopologyKey(new TopologyId(NETCONF_TOPOLOGY_ID)))\r
 178             .child(Node.class, new NodeKey(nodeId))\r
 179             .build();\r
 180     }\r
 181 \r
 182     private InstanceIdentifier<VppEndpoint> createVppEndpointIid(VppEndpointKey vppEpKey) {\r
 183         return InstanceIdentifier.builder(Config.class).child(VppEndpoint.class, vppEpKey).build();\r
 184     }\r
 185 \r
 186     private InstanceIdentifier<BaseEndpointByPort> createBaseEpByPortIid(Uuid uuid) {\r
 187         return createBaseEpByPortIid(new UniqueId(uuid.getValue()));\r
 188     }\r
 189 \r
 190     private InstanceIdentifier<BaseEndpointByPort> createBaseEpByPortIid(UniqueId uuid) {\r
 191         return InstanceIdentifier.builder(Mappings.class)\r
 192             .child(GbpByNeutronMappings.class)\r
 193             .child(BaseEndpointsByPorts.class)\r
 194             .child(BaseEndpointByPort.class, new BaseEndpointByPortKey(uuid))\r
 195             .build();\r
 196     }\r
 197 \r
 198     InstanceIdentifier<Port> createWildcartedPortIid() {\r
 199         return portsIid().child(Port.class).build();\r
 200     }\r
 201 \r
 202     private InstanceIdentifier<Port> createPortIid(UniqueId uuid) {\r
 203         return portsIid().child(Port.class, new PortKey(new Uuid(uuid.getValue()))).build();\r
 204     }\r
 205 \r
 206     private InstanceIdentifierBuilder<Ports> portsIid() {\r
 207         return InstanceIdentifier.builder(Neutron.class).child(Ports.class);\r
 208     }\r
 209 \r
 210     @Override\r
 211     public void onTransactionChainFailed(TransactionChain<?, ?> chain, AsyncTransaction<?, ?> transaction,\r
 212             Throwable cause) {\r
 213         LOG.error("Transaction chain failed. {}", cause.getMessage());\r
 214         transactionChain.close();\r
 215         transactionChain = dataBroker.createTransactionChain(this);\r
 216     }\r
 217 \r
 218     @Override\r
 219     public void onTransactionChainSuccessful(TransactionChain<?, ?> chain) {\r
 220         LOG.trace("Transaction chain was successfull. {}", chain);\r
 221     }\r
 222 }\r