sxp-mapper/src/main/java/org/opendaylight/groupbasedpolicy/sxp/mapper/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.mapper.impl;
  10
  11 import java.util.Collections;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  17 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.SxpMapperReactor;
  18 import org.opendaylight.groupbasedpolicy.sxp.mapper.impl.util.SxpListenerUtil;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.BaseEndpointService;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.Endpoints;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainment;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.AddressEndpoints;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpoint;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointReg;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointRegBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.IpPrefixType;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.L3Context;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.mapper.model.rev160302.sxp.mapper.EndpointForwardingTemplateBySubnet;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.mapper.model.rev160302.sxp.mapper.EndpointPolicyTemplateBySgt;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.master.database.fields.MasterDatabaseBinding;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  40 import org.opendaylight.yangtools.yang.common.RpcResult;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.common.base.Optional;
  45 import com.google.common.base.Preconditions;
  46 import com.google.common.util.concurrent.AsyncFunction;
  47 import com.google.common.util.concurrent.CheckedFuture;
  48 import com.google.common.util.concurrent.Futures;
  49 import com.google.common.util.concurrent.JdkFutureAdapters;
  50 import com.google.common.util.concurrent.ListenableFuture;
  51
  52 /**
  53  * Purpose: exclusively processes sxp master database changes and EGP templates changes
  54  */
  55 public class SxpMapperReactorImpl implements SxpMapperReactor {
  56
  57     private static final Logger LOG = LoggerFactory.getLogger(SxpMapperReactorImpl.class);
  58
  59     private final BaseEndpointService l3EndpointService;
  60     private final DataBroker dataBroker;
  61
  62     public SxpMapperReactorImpl(final BaseEndpointService l3EndpointService, final DataBroker dataBroker) {
  63         this.l3EndpointService = Preconditions.checkNotNull(l3EndpointService, "l3Endpoint service missing");
  64         this.dataBroker = Preconditions.checkNotNull(dataBroker, "dataBroker missing");
  65     }
  66
  67     @Override
  68     public ListenableFuture<RpcResult<Void>> processTemplatesAndSxpMasterDB(
  69             final EndpointPolicyTemplateBySgt epPolicyTemplate,
  70             final EndpointForwardingTemplateBySubnet epForwardingTemplate,
  71             final MasterDatabaseBinding masterDBBinding) {
  72         LOG.debug("processing ep-templates + sxpMasterDB entry: {} - {}",
  73                 masterDBBinding.getSecurityGroupTag(), masterDBBinding.getIpPrefix());
  74         // apply sxpMasterDB to policy template
  75         final Ipv4Prefix address = new Ipv4Prefix(epForwardingTemplate.getIpPrefix().getIpv4Prefix().getValue());
  76         final NetworkContainment networkContainment = new NetworkContainmentBuilder()
  77             .setContainment(new NetworkDomainContainmentBuilder()
  78             .setNetworkDomainType(epForwardingTemplate.getNetworkContainment().getNetworkDomainType())
  79             .setNetworkDomainId(epForwardingTemplate.getNetworkContainment().getNetworkDomainId())
  80             .build())
  81             .build();
  82         final RegisterEndpointInput epInput = new RegisterEndpointInputBuilder()
  83                 .setAddressEndpointReg(Collections.singletonList(new AddressEndpointRegBuilder()
  84                         .setAddressType(IpPrefixType.class)
  85                         .setAddress(address.getValue())
  86                         .setContextType(L3Context.class)
  87                         .setContextId(epForwardingTemplate.getL3Context())
  88                         .setNetworkContainment(networkContainment)
  89                         .setCondition(epPolicyTemplate.getConditions())
  90                         .setTenant(epPolicyTemplate.getTenant())
  91                         .setEndpointGroup(epPolicyTemplate.getEndpointGroups())
  92                         .build()))
  93                 .build();
  94                 epForwardingTemplate.getL3Context();
  95
  96         return chainL3EPServiceIfEpAbsent(epInput);
  97     }
  98
  99     private CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> findExistingEndPoint(final ContextId containment,
 100                                                                                           final String address) {
 101         KeyedInstanceIdentifier<AddressEndpoint, AddressEndpointKey> addressEndpointPath =
 102                 InstanceIdentifier.create(Endpoints.class).child(AddressEndpoints.class).child(AddressEndpoint.class,
 103                         new AddressEndpointKey(address, IpPrefixType.class, containment, L3Context.class));
 104         final ReadOnlyTransaction rTx = dataBroker.newReadOnlyTransaction();
 105         final CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> read = rTx.read(
 106                 LogicalDatastoreType.OPERATIONAL, addressEndpointPath);
 107         Futures.addCallback(read, SxpListenerUtil.createTxCloseCallback(rTx));
 108         return read;
 109     }
 110
 111     private ListenableFuture<RpcResult<Void>> chainL3EPServiceIfEpAbsent(final RegisterEndpointInput epInput) {
 112         AddressEndpointReg addressEndpoint = epInput.getAddressEndpointReg().get(0);
 113         CheckedFuture<Optional<AddressEndpoint>, ReadFailedException> existingEndpointFuture =
 114                 findExistingEndPoint(addressEndpoint.getContextId(), addressEndpoint.getAddress());
 115
 116         return Futures.transform(existingEndpointFuture, new AsyncFunction<Optional<AddressEndpoint>, RpcResult<Void>>() {
 117             @Override
 118             public ListenableFuture<RpcResult<Void>> apply(final Optional<AddressEndpoint> input) throws Exception {
 119                 final ListenableFuture<RpcResult<Void>> nextResult;
 120                 if (input == null || !input.isPresent()) {
 121                     // invoke service
 122                     return JdkFutureAdapters.listenInPoolThread(l3EndpointService.registerEndpoint(epInput));
 123                 } else {
 124                     final String existingL3EpMsg = String.format("address-endpoint for given key already exists: %s | %s",
 125                             addressEndpoint.getContextId(), addressEndpoint.getAddress() );
 126                     nextResult = Futures.immediateFailedFuture(new IllegalStateException(existingL3EpMsg));
 127                 }
 128                 return nextResult;
 129             }
 130         });
 131     }
 132
 133 }
 134