neutron-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/mapper/mapping/NeutronSubnetAware.java

   1 /*
   2  * Copyright (c) 2015 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 package org.opendaylight.groupbasedpolicy.neutron.mapper.mapping;
   9
  10 import static com.google.common.base.Preconditions.checkNotNull;
  11
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
  16 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils.ForwardingCtx;
  17 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.Utils;
  18 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  19 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  20 import org.opendaylight.neutron.spi.INeutronSubnetAware;
  21 import org.opendaylight.neutron.spi.NeutronSubnet;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2FloodDomainId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.Name;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.NetworkDomainId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.SubnetId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.SubnetBuilder;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 import com.google.common.base.Optional;
  35 import com.google.common.base.Strings;
  36
  37 public class NeutronSubnetAware implements INeutronSubnetAware {
  38
  39     private final static Logger LOG = LoggerFactory.getLogger(NeutronSubnetAware.class);
  40     private final DataBroker dataProvider;
  41     private final NeutronNetworkDao networkDao;
  42
  43     public NeutronSubnetAware(DataBroker dataProvider, NeutronNetworkDao networkDao) {
  44         this.dataProvider = checkNotNull(dataProvider);
  45         this.networkDao = checkNotNull(networkDao);
  46     }
  47
  48     /**
  49      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#canCreateSubnet(org.opendaylight.neutron.spi.NeutronSubnet)
  50      */
  51     @Override
  52     public int canCreateSubnet(NeutronSubnet subnet) {
  53         LOG.trace("canCreateSubnet - {}", subnet);
  54         // nothing to consider
  55         return StatusCode.OK;
  56     }
  57
  58     /**
  59      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#neutronSubnetCreated(org.opendaylight.neutron.spi.NeutronSubnet)
  60      */
  61     @Override
  62     public void neutronSubnetCreated(NeutronSubnet neutronSubnet) {
  63         LOG.trace("neutronSubnetCreated - {}", neutronSubnet);
  64         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
  65         SubnetId subnetId = new SubnetId(Utils.normalizeUuid(neutronSubnet.getID()));
  66         TenantId tenantId = new TenantId(Utils.normalizeUuid(neutronSubnet.getTenantID()));
  67         Subnet subnet = createSubnet(neutronSubnet);
  68         rwTx.put(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, subnetId), subnet, true);
  69         DataStoreHelper.submitToDs(rwTx);
  70
  71         rwTx = dataProvider.newReadWriteTransaction();
  72         if (networkDao.isExternalNetwork(neutronSubnet.getNetworkUUID())) {
  73             LOG.trace("neutronSubnetCreated - adding L3 Endpoint");
  74             L2FloodDomainId l2FdId = new L2FloodDomainId(subnet.getParent().getValue());
  75             ForwardingCtx fwCtx = MappingUtils.createForwardingContext(tenantId, l2FdId, rwTx);
  76             IpAddress defaultGateway = Utils.createIpAddress(neutronSubnet.getGatewayIP());
  77             //Create L3Endpoint for defaultGateway
  78             NetworkDomainId containment = new NetworkDomainId(neutronSubnet.getID());
  79             NeutronPortAware.addL3EndpointForExternalGateway(tenantId, fwCtx.getL3Context().getId(), defaultGateway, containment ,rwTx);
  80             DataStoreHelper.submitToDs(rwTx);
  81         }
  82     }
  83
  84     private Subnet createSubnet(NeutronSubnet neutronSubnet) {
  85         SubnetBuilder subnetBuilder = new SubnetBuilder();
  86         subnetBuilder.setId(new SubnetId(neutronSubnet.getID()));
  87         subnetBuilder.setParent(new ContextId(neutronSubnet.getNetworkUUID()));
  88         if (!Strings.isNullOrEmpty(neutronSubnet.getName())) {
  89             subnetBuilder.setName(new Name(neutronSubnet.getName()));
  90         }
  91         subnetBuilder.setIpPrefix(Utils.createIpPrefix(neutronSubnet.getCidr()));
  92         return subnetBuilder.build();
  93     }
  94
  95     /**
  96      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#canUpdateSubnet(org.opendaylight.neutron.spi.NeutronSubnet,
  97      *      org.opendaylight.neutron.spi.NeutronSubnet)
  98      */
  99     @Override
 100     public int canUpdateSubnet(NeutronSubnet delta, NeutronSubnet original) {
 101         LOG.trace("canUpdateSubnet - delta: {} original: {}", delta, original);
 102         // nothing to consider
 103         return StatusCode.OK;
 104     }
 105
 106     /**
 107      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#neutronSubnetUpdated(org.opendaylight.neutron.spi.NeutronSubnet)
 108      */
 109     @Override
 110     public void neutronSubnetUpdated(NeutronSubnet subnet) {
 111         LOG.trace("neutronSubnetUpdated - {}", subnet);
 112         neutronSubnetCreated(subnet);
 113     }
 114
 115     /**
 116      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#canDeleteSubnet(org.opendaylight.neutron.spi.NeutronSubnet)
 117      */
 118     @Override
 119     public int canDeleteSubnet(NeutronSubnet subnet) {
 120         LOG.trace("canDeleteSubnet - {}", subnet);
 121         // nothing to consider
 122         return StatusCode.OK;
 123     }
 124
 125     /**
 126      * @see org.opendaylight.neutron.spi.INeutronSubnetAware#neutronSubnetDeleted(org.opendaylight.neutron.spi.NeutronSubnet)
 127      */
 128     @Override
 129     public void neutronSubnetDeleted(NeutronSubnet neutronSubnet) {
 130         LOG.trace("neutronSubnetDeleted - {}", neutronSubnet);
 131         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 132         SubnetId subnetId = new SubnetId(Utils.normalizeUuid(neutronSubnet.getID()));
 133         TenantId tenantId = new TenantId(Utils.normalizeUuid(neutronSubnet.getTenantID()));
 134         Optional<Subnet> potentialSubnet = DataStoreHelper.removeIfExists(LogicalDatastoreType.CONFIGURATION,
 135                 IidFactory.subnetIid(tenantId, subnetId), rwTx);
 136         if (!potentialSubnet.isPresent()) {
 137             LOG.warn("Illegal state - subnet {} does not exist.", subnetId.getValue());
 138             rwTx.cancel();
 139             return;
 140         }
 141         DataStoreHelper.submitToDs(rwTx);
 142     }
 143 }