neutron-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/mapper/util/MappingUtils.java

   1 /*
   2  * Copyright (c) 2014 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.mapper.util;
  10
  11 import java.util.List;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.groupbasedpolicy.neutron.mapper.mapping.NeutronPortAware;
  16 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.AllowAction;
  17 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  18 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  19 import org.opendaylight.neutron.spi.Neutron_IPs;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ActionName;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2BridgeDomainId;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2FloodDomainId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.action.refs.ActionRef;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.action.refs.ActionRefBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.L2BridgeDomain;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.L2FloodDomain;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.L3Context;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.subject.feature.instances.ActionInstance;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.subject.feature.instances.ActionInstanceBuilder;
  33
  34 import com.google.common.base.Optional;
  35 import com.google.common.collect.ImmutableList;
  36
  37 public final class MappingUtils {
  38
  39     public static final String NEUTRON_ROUTER = "neutron_router-";
  40     public static final String NEUTRON_EXTERNAL = "neutron_external_network-";
  41     public static final String NEUTRON_GROUP = "neutron_group-";
  42     public static final ActionInstance ACTION_ALLOW = new ActionInstanceBuilder().setName(
  43             new ActionName("Allow"))
  44         .setActionDefinitionId(AllowAction.DEFINITION.getId())
  45         .build();
  46     public static final List<ActionRef> ACTION_REF_ALLOW =
  47             ImmutableList.of(new ActionRefBuilder().setName(ACTION_ALLOW.getName()).setOrder(0).build());
  48     public static final EndpointGroupId EPG_EXTERNAL_ID = new EndpointGroupId("eeeaa3a2-e9ba-44e0-a462-bea923d30e38");
  49
  50     public static final String NAME_VALUE_DELIMETER = "-";
  51     public static final String NAME_DELIMETER = "_";
  52     public static final String NAME_DOUBLE_DELIMETER = "__";
  53
  54     private MappingUtils() {
  55         throw new UnsupportedOperationException("Cannot create an instance.");
  56     }
  57
  58     public static ForwardingCtx createForwardingContext(TenantId tenantId, L2FloodDomainId l2FdId, ReadTransaction rTx) {
  59         Optional<L2FloodDomain> potentialL2Fd = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,
  60                 IidFactory.l2FloodDomainIid(tenantId, l2FdId), rTx);
  61         if (!potentialL2Fd.isPresent()) {
  62             return new ForwardingCtx(null, null, null);
  63         }
  64         L2BridgeDomainId l2BdId = potentialL2Fd.get().getParent();
  65         if (l2BdId == null) {
  66             return new ForwardingCtx(potentialL2Fd.get(), null, null);
  67         }
  68         Optional<L2BridgeDomain> potentialL2Bd = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,
  69                 IidFactory.l2BridgeDomainIid(tenantId, l2BdId), rTx);
  70         if (!potentialL2Bd.isPresent()) {
  71             return new ForwardingCtx(potentialL2Fd.get(), null, null);
  72         }
  73         L3ContextId l3ContextId = potentialL2Bd.get().getParent();
  74         if (l3ContextId == null) {
  75             return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), null);
  76         }
  77         Optional<L3Context> potentialL3Context = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,
  78                 IidFactory.l3ContextIid(tenantId, l3ContextId), rTx);
  79         if (!potentialL3Context.isPresent()) {
  80             return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), null);
  81         }
  82         return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), potentialL3Context.get());
  83     }
  84
  85     public static final class ForwardingCtx {
  86
  87         private final L2FloodDomain l2FloodDomain;
  88         private final L2BridgeDomain l2BridgeDomain;
  89         private final L3Context l3Context;
  90
  91         private ForwardingCtx(L2FloodDomain l2Fd, L2BridgeDomain l2Bd, L3Context l3Context) {
  92             this.l2FloodDomain = l2Fd;
  93             this.l2BridgeDomain = l2Bd;
  94             this.l3Context = l3Context;
  95         }
  96
  97         public L2FloodDomain getL2FloodDomain() {
  98             return l2FloodDomain;
  99         }
 100
 101         public L2BridgeDomain getL2BridgeDomain() {
 102             return l2BridgeDomain;
 103         }
 104
 105         public L3Context getL3Context() {
 106             return l3Context;
 107         }
 108
 109     }
 110
 111     public static Neutron_IPs getFirstIp(List<Neutron_IPs> fixedIPs) {
 112         if (fixedIPs == null || fixedIPs.isEmpty()) {
 113             return null;
 114         }
 115         Neutron_IPs neutron_Ip = fixedIPs.get(0);
 116         if (fixedIPs.size() > 1) {
 117             NeutronPortAware.LOG.warn("Neutron mapper does not support multiple IPs on the same port. Only first IP is selected {}",
 118                     neutron_Ip);
 119         }
 120         return neutron_Ip;
 121     }
 122 }