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.ep.provider.impl.dao;
10 import com.google.common.base.Function;
11 import com.google.common.base.Optional;
12 import com.google.common.util.concurrent.CheckedFuture;
13 import com.google.common.util.concurrent.Futures;
14 import com.google.common.util.concurrent.ListenableFuture;
15 import java.util.ArrayList;
16 import java.util.Collection;
17 import java.util.Collections;
18 import java.util.List;
19 import java.util.stream.Collectors;
20 import javax.annotation.Nonnull;
21 import javax.annotation.Nullable;
22 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
23 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
25 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
26 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.DSAsyncDao;
27 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.MasterDatabaseBindingListener;
28 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.ReadableAsyncByKey;
29 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl.SimpleCachedDao;
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.sxp.database.rev160308.MasterDatabaseFields;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.Sgt;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.database.rev160308.master.database.fields.MasterDatabaseBinding;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.sxp.node.rev160308.SxpDatabasesFields;
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.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
39 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
41 import org.slf4j.Logger;
42 import org.slf4j.LoggerFactory;
45 * Purpose: general dao for EndPoint templates
47 public class MasterDatabaseBindingDaoImpl implements DSAsyncDao<IpPrefix, MasterDatabaseBinding>,
48 ReadableAsyncByKey<Sgt, MasterDatabaseBinding> {
50 private static final Logger LOG = LoggerFactory.getLogger(MasterDatabaseBindingDaoImpl.class);
51 private static final ListenableFuture<Optional<MasterDatabaseBinding>> READ_FUTURE_ABSENT = Futures.immediateFuture(Optional.absent());
53 private final DataBroker dataBroker;
54 private final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> cachedDao;
56 public MasterDatabaseBindingDaoImpl(final DataBroker dataBroker,
57 final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> cachedDao) {
58 this.dataBroker = dataBroker;
59 this.cachedDao = cachedDao;
63 public ListenableFuture<Optional<MasterDatabaseBinding>> read(@Nonnull final IpPrefix key) {
64 final Optional<MasterDatabaseBinding> cachedMasterDatabaseBinding = lookup(cachedDao, key);
65 if (cachedMasterDatabaseBinding.isPresent()) {
66 return Futures.immediateFuture(cachedMasterDatabaseBinding);
67 } else if (!cachedDao.isEmpty()) {
68 return READ_FUTURE_ABSENT;
70 final ListenableFuture<Void> cacheUpdatedFt = updateCache();
72 return Futures.transform(cacheUpdatedFt, new Function<Void, Optional<MasterDatabaseBinding>>() {
75 public Optional<MasterDatabaseBinding> apply(@Nullable final Void input) {
76 return lookup(cachedDao, key);
82 private ListenableFuture<Void> updateCache() {
83 final ReadOnlyTransaction rTx = dataBroker.newReadOnlyTransaction();
84 final CheckedFuture<Optional<Topology>, ReadFailedException> read =
85 rTx.read(LogicalDatastoreType.CONFIGURATION, buildReadPath(null));
87 Futures.addCallback(read, SxpListenerUtil.createTxCloseCallback(rTx));
89 return Futures.transform(read, new Function<Optional<Topology>, Void>() {
92 public Void apply(@Nullable final Optional<Topology> input) {
95 cachedDao.invalidateCache();
97 final List<Node> nodeList = java.util.Optional.ofNullable(input.orNull())
98 .map(Topology::getNode)
100 LOG.warn("failed to update cache of SxpMasterDB - no data");
101 return Collections.emptyList();
103 for (Node node : nodeList) {
104 java.util.Optional.ofNullable(node.getAugmentation(SxpNodeIdentity.class))
105 .map(SxpNodeIdentity::getSxpDomains)
106 .map(SxpDomains::getSxpDomain)
107 .ifPresent((sxpDomain) -> {
108 final List<MasterDatabaseBinding> masterDBBindings = sxpDomain.stream()
109 .map(SxpDatabasesFields::getMasterDatabase)
110 .filter(masterDb -> masterDb != null)
111 .map(MasterDatabaseFields::getMasterDatabaseBinding)
112 .filter(binding -> binding != null)
113 .flatMap(Collection::stream)
114 .collect(Collectors.toList());
116 for (MasterDatabaseBinding masterDBItem : masterDBBindings) {
118 final MasterDatabaseBinding
120 cachedDao.update(masterDBItem.getIpPrefix(), masterDBItem);
121 if (previousValue != null) {
122 LOG.warn("updated key already obtained: [node:{}, sgt:{}]",
123 node.getNodeId().getValue(), masterDBItem.getSecurityGroupTag());
129 LOG.warn("failed to update cache of SxpMasterDB - null input");
136 private InstanceIdentifier<Topology> buildReadPath(final Sgt key) {
137 return MasterDatabaseBindingListener.SXP_TOPOLOGY_PATH;
140 private Optional<MasterDatabaseBinding> lookup(final SimpleCachedDao<IpPrefix, MasterDatabaseBinding> cachedDao, final IpPrefix key) {
141 return cachedDao.find(key);
145 public ListenableFuture<Collection<MasterDatabaseBinding>> readBy(@Nonnull final Sgt specialKey) {
146 final ListenableFuture<Void> cacheUpdatedFt;
147 if (!cachedDao.isEmpty()) {
148 cacheUpdatedFt = Futures.immediateFuture(null);
150 cacheUpdatedFt = updateCache();
153 return Futures.transform(cacheUpdatedFt, new Function<Void, Collection<MasterDatabaseBinding>>() {
156 public Collection<MasterDatabaseBinding> apply(@Nullable final Void input) {
157 final Collection<MasterDatabaseBinding> foundGroups = new ArrayList<>();
159 for (MasterDatabaseBinding masterDBItem : cachedDao.values()) {
160 if (masterDBItem.getSecurityGroupTag().equals(specialKey)) {
161 foundGroups.add(masterDBItem);