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
9 package org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.listen;
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.FutureCallback;
15 import com.google.common.util.concurrent.Futures;
16 import com.google.common.util.concurrent.ListenableFuture;
17 import java.util.Collection;
18 import javax.annotation.Nonnull;
19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
20 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
21 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
22 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
23 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
24 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.DSAsyncDao;
25 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.MasterDatabaseBindingListener;
26 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.SimpleCachedDao;
27 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.SxpMapperReactor;
28 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.util.EPTemplateUtil;
29 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.util.L3EPServiceUtil;
30 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.util.SxpListenerUtil;
31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.integration.sxp.ep.provider.model.rev160302.sxp.ep.mapper.EndpointForwardingTemplateBySubnet;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.sxp.integration.sxp.ep.provider.model.rev160302.sxp.ep.mapper.EndpointPolicyTemplateBySgt;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.Sgt;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.master.database.fields.MasterDatabaseBinding;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.SxpNodeIdentity;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.network.topology.topology.node.SxpDomains;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.network.topology.topology.node.sxp.domains.SxpDomain;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.sxp.databases.fields.MasterDatabase;
40 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
41 import org.opendaylight.yangtools.concepts.ListenerRegistration;
42 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
43 import org.opendaylight.yangtools.yang.common.RpcError;
44 import org.opendaylight.yangtools.yang.common.RpcResult;
45 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
46 import org.slf4j.Logger;
47 import org.slf4j.LoggerFactory;
50 * listens to sxp master database and propagates change events for further processing
52 public class MasterDatabaseBindingListenerImpl implements MasterDatabaseBindingListener {
54 private static final Logger LOG = LoggerFactory.getLogger(MasterDatabaseBindingListenerImpl.class);
56 private static final FutureCallback<RpcResult<Void>> RPC_POLICY_RESULT_FUTURE_CALLBACK =
57 L3EPServiceUtil.createFailureLoggingCallback("failed to read epPolicyTemplate");
59 public static final FutureCallback<RpcResult<Void>> RPC_FW_RESULT_FUTURE_CALLBACK =
60 L3EPServiceUtil.createFailureLoggingCallback("failed to read epForwardingTemplate");
62 private final SxpMapperReactor sxpMapperReactor;
63 private final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> masterDBBindingDaoCached;
64 private final DSAsyncDao<Sgt, EndpointPolicyTemplateBySgt> epPolicyTemplateDao;
65 private final DSAsyncDao<IpPrefix, EndpointForwardingTemplateBySubnet> epForwardingTemplateDao;
67 private final ListenerRegistration<? extends ClusteredDataTreeChangeListener> listenerRegistration;
68 private final InstanceIdentifier<MasterDatabaseBinding> sxpDbPath;
70 public MasterDatabaseBindingListenerImpl(final DataBroker dataBroker,
71 final SxpMapperReactor sxpMapperReactor,
72 final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> masterDBBindingDaoCached,
73 final DSAsyncDao<Sgt, EndpointPolicyTemplateBySgt> epPolicyTemplateDao,
74 final DSAsyncDao<IpPrefix, EndpointForwardingTemplateBySubnet> epForwardingTemplateDao) {
75 this.sxpMapperReactor = Preconditions.checkNotNull(sxpMapperReactor);
76 this.masterDBBindingDaoCached = Preconditions.checkNotNull(masterDBBindingDaoCached);
77 this.epPolicyTemplateDao = Preconditions.checkNotNull(epPolicyTemplateDao);
78 this.epForwardingTemplateDao = Preconditions.checkNotNull(epForwardingTemplateDao);
80 //TODO: get exact sxp-node path from config (pointing to ise listener).. start listening later - when config appears
81 sxpDbPath = MasterDatabaseBindingListener.SXP_TOPOLOGY_PATH
83 .augmentation(SxpNodeIdentity.class)
84 .child(SxpDomains.class)
85 .child(SxpDomain.class)
86 .child(MasterDatabase.class)
87 .child(MasterDatabaseBinding.class);
89 final DataTreeIdentifier<MasterDatabaseBinding> dataTreeIdentifier = new DataTreeIdentifier<>(
90 LogicalDatastoreType.OPERATIONAL, sxpDbPath);
91 listenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIdentifier, this);
92 LOG.debug("started listening to {}", sxpDbPath);
96 public void onDataTreeChanged(@Nonnull final Collection<DataTreeModification<MasterDatabaseBinding>> collection) {
97 for (DataTreeModification<MasterDatabaseBinding> change : collection) {
98 LOG.trace("received modification: {} -> {}", change.getRootPath(), change.getRootNode().getModificationType());
100 final MasterDatabaseBinding sxpMasterDBItem = change.getRootNode().getDataAfter();
101 if (sxpMasterDBItem == null) {
102 //TODO: cover sgt-ip mapping removal
103 LOG.debug("ip-sgt mapping was removed - NOOP: {}",
104 change.getRootPath().getRootIdentifier().firstKeyOf(MasterDatabaseBinding.class));
106 final IpPrefix ipPrefixKey = sxpMasterDBItem.getIpPrefix();
107 SxpListenerUtil.updateCachedDao(masterDBBindingDaoCached, ipPrefixKey, change);
108 processWithEPTemplates(sxpMasterDBItem);
113 private void processWithEPTemplates(final MasterDatabaseBinding sxpMasterDBItem) {
114 final ListenableFuture<Optional<EndpointPolicyTemplateBySgt>> epPolicyTemplateFuture =
115 epPolicyTemplateDao.read(sxpMasterDBItem.getSecurityGroupTag());
117 final ListenableFuture<Optional<EndpointForwardingTemplateBySubnet>> epForwardingTemplateFuture =
118 epForwardingTemplateDao.read(sxpMasterDBItem.getIpPrefix());
120 final ListenableFuture<EPTemplateUtil.OptionalMutablePair<EndpointPolicyTemplateBySgt, EndpointForwardingTemplateBySubnet>> compositeRead
121 = EPTemplateUtil.compositeRead(epPolicyTemplateFuture, epForwardingTemplateFuture);
123 final ListenableFuture<RpcResult<Void>> rpcResult = Futures.transform(compositeRead,
124 new AsyncFunction<EPTemplateUtil.OptionalMutablePair<EndpointPolicyTemplateBySgt, EndpointForwardingTemplateBySubnet>, RpcResult<Void>>() {
126 public ListenableFuture<RpcResult<Void>> apply(final EPTemplateUtil.OptionalMutablePair<EndpointPolicyTemplateBySgt, EndpointForwardingTemplateBySubnet> input) throws Exception {
127 final ListenableFuture<RpcResult<Void>> result;
129 LOG.debug("no ep*Templates available for sgt/ip-prefix: {}/{}",
130 sxpMasterDBItem.getSecurityGroupTag(),
131 sxpMasterDBItem.getIpPrefix());
132 result = RpcResultBuilder.<Void>failed()
133 .withError(RpcError.ErrorType.APPLICATION,
134 "no ep-templates available for" + sxpMasterDBItem)
137 } else if (!input.getLeft().isPresent()) {
138 LOG.debug("no epPolicyTemplate available for sgt: {}", sxpMasterDBItem.getSecurityGroupTag());
139 result = RpcResultBuilder.<Void>failed()
140 .withError(RpcError.ErrorType.APPLICATION,
141 "no epPolicyTemplate available for " + sxpMasterDBItem)
143 } else if (!input.getRight().isPresent()) {
144 LOG.debug("no epForwardingTemplate available for ip-prefix: {}",
145 sxpMasterDBItem.getIpPrefix());
146 result = RpcResultBuilder.<Void>failed()
147 .withError(RpcError.ErrorType.APPLICATION,
148 "no epForwardingTemplate available for " + sxpMasterDBItem)
151 LOG.trace("processing sxpMasterDB event and epPolicyTemplate for sgt/ip-prefix: {}/{}",
152 sxpMasterDBItem.getSecurityGroupTag(),
153 sxpMasterDBItem.getIpPrefix());
154 result = sxpMapperReactor.processTemplatesAndSxpMasterDB(input.getLeft().get(),
155 input.getRight().get(), sxpMasterDBItem);
161 Futures.addCallback(rpcResult, RPC_POLICY_RESULT_FUTURE_CALLBACK);
165 public void close() throws Exception {
166 LOG.debug("closing listener registration to {}", sxpDbPath);
167 listenerRegistration.close();