sxp-integration/sxp-ep-provider/src/main/java/org/opendaylight/groupbasedpolicy/sxp/ep/provider/impl/SxpMapperReactorImpl.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.sxp.ep.provider.impl;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.util.concurrent.AsyncFunction;
  14 import com.google.common.util.concurrent.CheckedFuture;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.JdkFutureAdapters;
  17 import com.google.common.util.concurrent.ListenableFuture;
  18 import java.util.Collections;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  23 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.util.SxpListenerUtil;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.BaseEndpointService;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.Endpoints;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainment;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.AddressEndpoints;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpoint;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointReg;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointRegBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.IpPrefixType;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.L3Context;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.ep.provider.model.rev160302.sxp.ep.mapper.EndpointForwardingTemplateBySubnet;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.ep.provider.model.rev160302.sxp.ep.mapper.EndpointPolicyTemplateBySgt;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.master.database.fields.MasterDatabaseBinding;
  44 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  45 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  46 import org.opendaylight.yangtools.yang.common.RpcResult;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49
  50 /**
  51  * Purpose: exclusively processes sxp master database changes and EGP templates changes
  52  */
  53 public class SxpMapperReactorImpl implements SxpMapperReactor {
  54
  55     private static final Logger LOG = LoggerFactory.getLogger(SxpMapperReactorImpl.class);
  56
  57     private final BaseEndpointService l3EndpointService;
  58     private final DataBroker dataBroker;
  59
  60     public SxpMapperReactorImpl(final BaseEndpointService l3EndpointService, final DataBroker dataBroker) {
  61         this.l3EndpointService = Preconditions.checkNotNull(l3EndpointService, "l3Endpoint service missing");
  62         this.dataBroker = Preconditions.checkNotNull(dataBroker, "dataBroker missing");
  63     }
  64
  65     @Override
  66     public ListenableFuture<RpcResult<Void>> processTemplatesAndSxpMasterDB(
  67             final EndpointPolicyTemplateBySgt epPolicyTemplate,
  68             final EndpointForwardingTemplateBySubnet epForwardingTemplate,
  69             final MasterDatabaseBinding masterDBBinding) {
  70         LOG.debug("processing ep-templates + sxpMasterDB entry: {} - {}",
  71                 masterDBBinding.getSecurityGroupTag(), masterDBBinding.getIpPrefix());
  72         // apply sxpMasterDB to policy template
  73         final Ipv4Prefix address = new Ipv4Prefix(epForwardingTemplate.getIpPrefix().getIpv4Prefix().getValue());
  74         final NetworkContainment networkContainment = new NetworkContainmentBuilder()
  75             .setContainment(new NetworkDomainContainmentBuilder()
  76             .setNetworkDomainType(epForwardingTemplate.getNetworkContainment().getNetworkDomainType())
  77             .setNetworkDomainId(epForwardingTemplate.getNetworkContainment().getNetworkDomainId())
  78             .build())
  79                     .build();
  80         final RegisterEndpointInput epInput = new RegisterEndpointInputBuilder().setAddressEndpointReg(
  81                 Collections.singletonList(new AddressEndpointRegBuilder().setAddressType(IpPrefixType.class)
  82                     .setAddress(address.getValue())
  83                     .setContextType(L3Context.class)
  84                     .setContextId(epForwardingTemplate.getL3Context())
  85                     .setNetworkContainment(networkContainment)
  86                     .setCondition(epPolicyTemplate.getConditions())
  87                     .setTenant(epPolicyTemplate.getTenant())
  88                     .setEndpointGroup(epPolicyTemplate.getEndpointGroups())
  89                     .build()))
  90                 .build();
  91                 epForwardingTemplate.getL3Context();
  92
  93         return chainL3EPServiceIfEpAbsent(epInput);
  94     }
  95
  96     private CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> findExistingEndPoint(final ContextId containment,
  97                                                                                           final String address) {
  98         KeyedInstanceIdentifier<AddressEndpoint, AddressEndpointKey> addressEndpointPath =
  99                 InstanceIdentifier.create(Endpoints.class).child(AddressEndpoints.class).child(AddressEndpoint.class,
 100                         new AddressEndpointKey(address, IpPrefixType.class, containment, L3Context.class));
 101         final ReadOnlyTransaction rTx = dataBroker.newReadOnlyTransaction();
 102         final CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> read = rTx.read(
 103                 LogicalDatastoreType.OPERATIONAL, addressEndpointPath);
 104         Futures.addCallback(read, SxpListenerUtil.createTxCloseCallback(rTx));
 105         return read;
 106     }
 107
 108     private ListenableFuture<RpcResult<Void>> chainL3EPServiceIfEpAbsent(final RegisterEndpointInput epInput) {
 109         AddressEndpointReg addressEndpoint = epInput.getAddressEndpointReg().get(0);
 110         CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> existingEndpointFuture =
 111                 findExistingEndPoint(addressEndpoint.getContextId(), addressEndpoint.getAddress());
 112
 113         return Futures.transform(existingEndpointFuture, new AsyncFunction<Optional<AddressEndpoint>, RpcResult<Void>>() {
 114             @Override
 115             public ListenableFuture<RpcResult<Void>> apply(final Optional<AddressEndpoint> input) throws Exception {
 116                 final ListenableFuture<RpcResult<Void>> nextResult;
 117                 if (input == null || !input.isPresent() || !isSameEpg(epInput, input.get())) {
 118                     // invoke service
 119                     return JdkFutureAdapters.listenInPoolThread(l3EndpointService.registerEndpoint(epInput));
 120                 } else {
 121                     final String existingL3EpMsg = String.format("address-endpoint for given key already exists: %s | %s",
 122                             addressEndpoint.getContextId(), addressEndpoint.getAddress() );
 123                     nextResult = Futures.immediateFailedFuture(new IllegalStateException(existingL3EpMsg));
 124                 }
 125                 return nextResult;
 126             }
 127         });
 128     }
 129
 130     private boolean isSameEpg(RegisterEndpointInput epInput, AddressEndpoint input) {
 131         if (epInput == null || epInput.getAddressEndpointReg() == null || epInput.getAddressEndpointReg().isEmpty()) {
 132             return true;
 133         }
 134         final AddressEndpointReg epInputAddressEndpoint = epInput.getAddressEndpointReg().get(0);
 135         if (epInputAddressEndpoint.getEndpointGroup() == null || epInputAddressEndpoint.getEndpointGroup().isEmpty()) {
 136             return true;
 137         }
 138         if (input == null || input.getEndpointGroup() == null || input.getEndpointGroup().isEmpty()) {
 139             return true;
 140         }
 141         final EndpointGroupId addressEndpointGroupId = epInputAddressEndpoint.getEndpointGroup().get(0);
 142         final EndpointGroupId existingEndpointGroupId = input.getEndpointGroup().get(0);
 143         return addressEndpointGroupId.equals(existingEndpointGroupId);
 144     }
 145
 146 }
 147