renderers/ios-xe/src/main/java/org/opendaylight/groupbasedpolicy/renderer/ios_xe_provider/impl/manager/PolicyManagerImpl.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.renderer.ios_xe_provider.impl.manager;
  10
  11 import static org.opendaylight.groupbasedpolicy.renderer.ios_xe_provider.impl.manager.PolicyManagerImpl.DsAction.Create;
  12 import static org.opendaylight.groupbasedpolicy.renderer.ios_xe_provider.impl.manager.PolicyManagerImpl.DsAction.Delete;
  13
  14 import java.util.HashMap;
  15 import java.util.List;
  16 import java.util.Map;
  17
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.groupbasedpolicy.renderer.ios_xe_provider.api.manager.PolicyManager;
  22 import org.opendaylight.groupbasedpolicy.renderer.ios_xe_provider.impl.util.PolicyManagerUtil;
  23 import org.opendaylight.groupbasedpolicy.renderer.ios_xe_provider.impl.writer.PolicyWriter;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.Renderers;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.RendererKey;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.RendererPolicy;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.RendererPolicyBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.policy.Configuration;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.policy.configuration.endpoints.AddressEndpointWithLocation;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.policy.configuration.renderer.endpoints.RendererEndpoint;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.policy.configuration.renderer.endpoints.renderer.endpoint.PeerEndpointWithPolicy;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.Sgt;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 import com.google.common.base.Preconditions;
  40 import com.google.common.util.concurrent.Futures;
  41 import com.google.common.util.concurrent.ListenableFuture;
  42
  43 public class PolicyManagerImpl implements PolicyManager {
  44
  45     private static final Logger LOG = LoggerFactory.getLogger(PolicyManagerImpl.class);
  46     private static final String policyMapName = "service-chains";
  47     private final DataBroker dataBroker;
  48     private final NodeManager nodeManager;
  49
  50     public PolicyManagerImpl(final DataBroker dataBroker,
  51                              final NodeManager nodeManager) {
  52         this.dataBroker = Preconditions.checkNotNull(dataBroker);
  53         this.nodeManager = Preconditions.checkNotNull(nodeManager);
  54     }
  55
  56     @Override
  57     public ListenableFuture<Boolean> syncPolicy(final Configuration dataAfter, final Configuration dataBefore,
  58             long version) {
  59         ListenableFuture<Boolean> result = Futures.immediateFuture(false);
  60         if (dataBefore == null && dataAfter != null) {
  61             result = syncPolicy(dataAfter, Create);
  62         } else if (dataBefore != null && dataAfter != null) {
  63             // TODO implement
  64             return Futures.immediateFuture(false);
  65         } else if (dataBefore != null) {
  66             result = syncPolicy(dataBefore, Delete);
  67         }
  68         reportVersion(version);
  69         return result;
  70     }
  71
  72     private ListenableFuture<Boolean> syncPolicy(final Configuration dataAfter, DsAction action) {
  73         if (dataAfter.getRendererEndpoints() == null
  74                 || dataAfter.getRendererEndpoints().getRendererEndpoint() == null) {
  75             LOG.debug("no configuration obtained - skipping");
  76             return Futures.immediateFuture(true);
  77         }
  78         final Map<DataBroker, PolicyWriter> policyWriterPerDeviceCache = new HashMap<>();
  79         for (RendererEndpoint rendererEndpoint : dataAfter.getRendererEndpoints().getRendererEndpoint()) {
  80             if (dataAfter.getEndpoints() == null || dataAfter.getEndpoints().getAddressEndpointWithLocation() == null) {
  81                 LOG.debug("renderer-endpoint: missing address-endpoint-with-location");
  82                 continue;
  83             }
  84             final List<AddressEndpointWithLocation> endpointsWithLocation = dataAfter.getEndpoints()
  85                     .getAddressEndpointWithLocation();
  86             final InstanceIdentifier mountpointIid = PolicyManagerUtil.getAbsoluteLocationMountpoint(rendererEndpoint, endpointsWithLocation);
  87             final DataBroker mountpoint = nodeManager.getNodeMountPoint(mountpointIid);
  88             if (mountpoint == null) {
  89                 LOG.debug("no data-broker for mount-point [{}] available", mountpointIid);
  90                 continue;
  91             }
  92             // Find policy writer
  93             PolicyWriter policyWriter = policyWriterPerDeviceCache.get(mountpoint);
  94             if (policyWriter == null) {
  95                 // Initialize new policy writer
  96                 final String interfaceName = PolicyManagerUtil.getInterfaceNameForPolicyMap(rendererEndpoint, endpointsWithLocation);
  97                 final NodeId nodeId = nodeManager.getNodeIdByMountpointIid(mountpointIid);
  98                 final String managementIpAddress = nodeManager.getNodeManagementIpByMountPointIid(mountpointIid);
  99                 if (interfaceName == null || managementIpAddress == null) {
 100                     LOG.debug("can not create policyWriter: interface={}, managementIpAddress={}",
 101                             interfaceName, managementIpAddress);
 102                     continue;
 103                 }
 104                 policyWriter = new PolicyWriter(mountpoint, interfaceName, managementIpAddress, policyMapName, nodeId);
 105                 policyWriterPerDeviceCache.put(mountpoint, policyWriter);
 106             }
 107
 108             final Sgt sourceSgt = PolicyManagerUtil.findSgtTag(rendererEndpoint, dataAfter.getEndpoints()
 109                     .getAddressEndpointWithLocation());
 110             // Peer Endpoint
 111             for (PeerEndpointWithPolicy peerEndpoint : rendererEndpoint.getPeerEndpointWithPolicy()) {
 112                 final Sgt destinationSgt = PolicyManagerUtil.findSgtTag(peerEndpoint, dataAfter.getEndpoints()
 113                         .getAddressEndpointWithLocation());
 114                 if (sourceSgt == null || destinationSgt == null) {
 115                     LOG.debug("endpoint-policy: missing sgt value(sourceSgt={}, destinationSgt={})",
 116                             sourceSgt, destinationSgt);
 117                     continue;
 118                 }
 119                 PolicyManagerUtil.syncPolicyEntities(sourceSgt, destinationSgt, policyWriter, dataAfter, peerEndpoint);
 120             }
 121         }
 122         if (action.equals(Create)) {
 123             policyWriterPerDeviceCache.values().forEach(PolicyWriter::commitToDatastore);
 124             return Futures.immediateFuture(true);
 125         } else if (action.equals(Delete)) {
 126             policyWriterPerDeviceCache.values().forEach(PolicyWriter::removeFromDatastore);
 127             return Futures.immediateFuture(true);
 128         }
 129         return Futures.immediateFuture(false);
 130     }
 131
 132     private void reportVersion(long version) {
 133         WriteTransaction wtx = dataBroker.newWriteOnlyTransaction();
 134         InstanceIdentifier<RendererPolicy> iid = InstanceIdentifier.create(Renderers.class)
 135                 .child(Renderer.class, new RendererKey(NodeManager.iosXeRenderer))
 136                 .child(RendererPolicy.class);
 137         wtx.merge(LogicalDatastoreType.OPERATIONAL, iid, new RendererPolicyBuilder().setVersion(version).build());
 138         wtx.submit();
 139     }
 140
 141     @Override
 142     public void close() {
 143         //NOOP
 144     }
 145
 146     enum DsAction {Create, Delete}
 147
 148     public enum ActionCase {ALLOW, CHAIN}
 149 }