2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.groupbasedpolicy.sxp.mapper.impl.listen;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.util.concurrent.AsyncFunction;
13 import com.google.common.util.concurrent.FutureCallback;
14 import com.google.common.util.concurrent.Futures;
15 import com.google.common.util.concurrent.ListenableFuture;
16 import java.util.Collection;
17 import javax.annotation.Nonnull;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
20 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
21 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
23 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.DSAsyncDao;
24 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.MasterDatabaseBindingListener;
25 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.SimpleCachedDao;
26 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.SxpMapperReactor;
27 import org.opendaylight.groupbasedpolicy.sxp.mapper.impl.util.L3EPServiceUtil;
28 import org.opendaylight.groupbasedpolicy.sxp.mapper.impl.util.SxpListenerUtil;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.mapper.model.rev160302.sxp.mapper.EndpointForwardingTemplateBySubnet;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.mapper.model.rev160302.sxp.mapper.EndpointPolicyTemplateBySgt;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.Sgt;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.master.database.fields.MasterDatabaseBinding;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.SxpNodeIdentity;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.sxp.databases.fields.MasterDatabase;
36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
37 import org.opendaylight.yangtools.concepts.ListenerRegistration;
38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
39 import org.opendaylight.yangtools.yang.common.RpcResult;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
44 * listens to sxp master database and propagates change events for further processing
46 public class MasterDatabaseBindingListenerImpl implements MasterDatabaseBindingListener {
48 private static final Logger LOG = LoggerFactory.getLogger(MasterDatabaseBindingListenerImpl.class);
50 private static final FutureCallback<RpcResult<Void>> RPC_POLICY_RESULT_FUTURE_CALLBACK =
51 L3EPServiceUtil.createFailureLoggingCallback("failed to read epPolicyTemplate");
53 public static final FutureCallback<RpcResult<Void>> RPC_FW_RESULT_FUTURE_CALLBACK =
54 L3EPServiceUtil.createFailureLoggingCallback("failed to read epForwardingTemplate");
56 private final SxpMapperReactor sxpMapperReactor;
57 private final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> masterDBBindingDaoCached;
58 private final DSAsyncDao<Sgt, EndpointPolicyTemplateBySgt> epPolicyTemplateDao;
59 private final DSAsyncDao<IpPrefix, EndpointForwardingTemplateBySubnet> epForwardingTemplateDao;
61 private final ListenerRegistration<? extends DataTreeChangeListener> listenerRegistration;
62 private final InstanceIdentifier<MasterDatabaseBinding> sxpDbPath;
64 public MasterDatabaseBindingListenerImpl(final DataBroker dataBroker,
65 final SxpMapperReactor sxpMapperReactor,
66 final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> masterDBBindingDaoCached,
67 final DSAsyncDao<Sgt, EndpointPolicyTemplateBySgt> epPolicyTemplateDao,
68 final DSAsyncDao<IpPrefix, EndpointForwardingTemplateBySubnet> epForwardingTemplateDao) {
69 this.sxpMapperReactor = Preconditions.checkNotNull(sxpMapperReactor);
70 this.masterDBBindingDaoCached = Preconditions.checkNotNull(masterDBBindingDaoCached);
71 this.epPolicyTemplateDao = Preconditions.checkNotNull(epPolicyTemplateDao);
72 this.epForwardingTemplateDao = Preconditions.checkNotNull(epForwardingTemplateDao);
73 sxpDbPath = MasterDatabaseBindingListener.SXP_TOPOLOGY_PATH
75 .augmentation(SxpNodeIdentity.class)
76 .child(MasterDatabase.class)
77 .child(MasterDatabaseBinding.class);
79 final DataTreeIdentifier<MasterDatabaseBinding> dataTreeIdentifier = new DataTreeIdentifier<>(
80 LogicalDatastoreType.OPERATIONAL, sxpDbPath);
81 listenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIdentifier, this);
82 LOG.debug("started listening to {}", sxpDbPath);
86 public void onDataTreeChanged(@Nonnull final Collection<DataTreeModification<MasterDatabaseBinding>> collection) {
87 for (DataTreeModification<MasterDatabaseBinding> change : collection) {
88 LOG.trace("received modification: {} -> {}", change.getRootPath(), change.getRootNode().getModificationType());
90 final MasterDatabaseBinding sxpMasterDBItem = change.getRootNode().getDataAfter();
91 if (sxpMasterDBItem == null) {
92 //TODO: cover sgt-ip mapping removal
94 final Sgt sgtKey = sxpMasterDBItem.getSecurityGroupTag();
95 final IpPrefix ipPrefixKey = sxpMasterDBItem.getIpPrefix();
96 SxpListenerUtil.updateCachedDao(masterDBBindingDaoCached, ipPrefixKey, change);
98 processWithEPPolicyTemplate(sgtKey, sxpMasterDBItem);
99 processWithEPForwardingTemplate(ipPrefixKey, sxpMasterDBItem);
104 private void processWithEPForwardingTemplate(final IpPrefix changeKey, final MasterDatabaseBinding sxpMasterDBItem) {
105 final ListenableFuture<Optional<EndpointForwardingTemplateBySubnet>> epForwardingTemplateFuture =
106 epForwardingTemplateDao.read(changeKey);
108 final ListenableFuture<RpcResult<Void>> rpcResult = Futures.transform(epForwardingTemplateFuture, new AsyncFunction<Optional<EndpointForwardingTemplateBySubnet>, RpcResult<Void>>() {
110 public ListenableFuture<RpcResult<Void>> apply(final Optional<EndpointForwardingTemplateBySubnet> input) throws Exception {
111 if (input == null || !input.isPresent()) {
112 LOG.debug("no epForwardingTemplate available for ipPrefix: {}", changeKey);
113 throw new IllegalArgumentException("no epForwardingTemplate available");
115 LOG.trace("processing sxpMasterDB event and epForwardingTemplate for ip-prefix: {}", changeKey);
116 return sxpMapperReactor.processForwardingAndSxpMasterDB(input.get(), sxpMasterDBItem);
120 Futures.addCallback(rpcResult, RPC_FW_RESULT_FUTURE_CALLBACK);
123 private void processWithEPPolicyTemplate(final Sgt changeKey, final MasterDatabaseBinding sxpMasterDBItem) {
124 final ListenableFuture<Optional<EndpointPolicyTemplateBySgt>> epPolicyTemplateFuture =
125 epPolicyTemplateDao.read(changeKey);
127 final ListenableFuture<RpcResult<Void>> rpcResult = Futures.transform(epPolicyTemplateFuture, new AsyncFunction<Optional<EndpointPolicyTemplateBySgt>, RpcResult<Void>>() {
129 public ListenableFuture<RpcResult<Void>> apply(final Optional<EndpointPolicyTemplateBySgt> input) throws Exception {
130 if (input == null || !input.isPresent()) {
131 LOG.debug("no epPolicyTemplate available for sgt: {}", changeKey);
132 throw new IllegalArgumentException("no epPolicyTemplate available");
134 LOG.trace("processing sxpMasterDB event and epPolicyTemplate for sgt: {}", changeKey);
135 return sxpMapperReactor.processPolicyAndSxpMasterDB(input.get(), sxpMasterDBItem);
140 Futures.addCallback(rpcResult, RPC_POLICY_RESULT_FUTURE_CALLBACK);
144 public void close() throws Exception {
145 LOG.debug("closing listener registration to {}", sxpDbPath);
146 listenerRegistration.close();