2 * Copyright (c) 2015 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.mdsal.dom.broker;
10 import com.google.common.annotations.VisibleForTesting;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableList;
13 import com.google.common.collect.ImmutableMap;
14 import com.google.common.collect.ImmutableMap.Builder;
15 import com.google.common.collect.LinkedListMultimap;
16 import com.google.common.collect.ListMultimap;
17 import com.google.common.collect.Maps;
18 import com.google.common.util.concurrent.CheckedFuture;
19 import com.google.common.util.concurrent.Futures;
20 import java.util.ArrayList;
21 import java.util.Collection;
22 import java.util.HashMap;
23 import java.util.List;
25 import java.util.Map.Entry;
27 import org.opendaylight.mdsal.dom.api.DOMRpcAvailabilityListener;
28 import org.opendaylight.mdsal.dom.api.DOMRpcException;
29 import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
30 import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
31 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
32 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
33 import org.opendaylight.mdsal.dom.spi.RpcRoutingStrategy;
34 import org.opendaylight.yangtools.yang.common.QName;
35 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
36 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
37 import org.opendaylight.yangtools.yang.model.api.Module;
38 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
39 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
40 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
42 final class DOMRpcRoutingTable {
43 static final DOMRpcRoutingTable EMPTY = new DOMRpcRoutingTable(ImmutableMap.of(), null);
45 private final Map<SchemaPath, AbstractDOMRpcRoutingTableEntry> rpcs;
46 private final SchemaContext schemaContext;
48 private DOMRpcRoutingTable(final Map<SchemaPath, AbstractDOMRpcRoutingTableEntry> rpcs,
49 final SchemaContext schemaContext) {
50 this.rpcs = Preconditions.checkNotNull(rpcs);
51 this.schemaContext = schemaContext;
54 private static ListMultimap<SchemaPath, YangInstanceIdentifier> decomposeIdentifiers(
55 final Set<DOMRpcIdentifier> rpcs) {
56 final ListMultimap<SchemaPath, YangInstanceIdentifier> ret = LinkedListMultimap.create();
57 for (DOMRpcIdentifier i : rpcs) {
58 ret.put(i.getType(), i.getContextReference());
63 DOMRpcRoutingTable add(final DOMRpcImplementation implementation, final Set<DOMRpcIdentifier> rpcsToAdd) {
64 if (rpcsToAdd.isEmpty()) {
68 // First decompose the identifiers to a multimap
69 final ListMultimap<SchemaPath, YangInstanceIdentifier> toAdd = decomposeIdentifiers(rpcsToAdd);
71 // Now iterate over existing entries, modifying them as appropriate...
72 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> mb = ImmutableMap.builder();
73 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> re : this.rpcs.entrySet()) {
74 List<YangInstanceIdentifier> newRpcs = new ArrayList<>(toAdd.removeAll(re.getKey()));
75 if (!newRpcs.isEmpty()) {
76 final AbstractDOMRpcRoutingTableEntry ne = re.getValue().add(implementation, newRpcs);
77 mb.put(re.getKey(), ne);
83 // Finally add whatever is left in the decomposed multimap
84 for (Entry<SchemaPath, Collection<YangInstanceIdentifier>> e : toAdd.asMap().entrySet()) {
85 final Builder<YangInstanceIdentifier, List<DOMRpcImplementation>> vb = ImmutableMap.builder();
86 final List<DOMRpcImplementation> v = ImmutableList.of(implementation);
87 for (YangInstanceIdentifier i : e.getValue()) {
91 mb.put(e.getKey(), createRpcEntry(schemaContext, e.getKey(), vb.build()));
94 return new DOMRpcRoutingTable(mb.build(), schemaContext);
97 DOMRpcRoutingTable remove(final DOMRpcImplementation implementation, final Set<DOMRpcIdentifier> rpcIds) {
98 if (rpcIds.isEmpty()) {
102 // First decompose the identifiers to a multimap
103 final ListMultimap<SchemaPath, YangInstanceIdentifier> toRemove = decomposeIdentifiers(rpcIds);
105 // Now iterate over existing entries, modifying them as appropriate...
106 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> b = ImmutableMap.builder();
107 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> e : this.rpcs.entrySet()) {
108 final List<YangInstanceIdentifier> removed = new ArrayList<>(toRemove.removeAll(e.getKey()));
109 if (!removed.isEmpty()) {
110 final AbstractDOMRpcRoutingTableEntry ne = e.getValue().remove(implementation, removed);
112 b.put(e.getKey(), ne);
119 // All done, whatever is in toRemove, was not there in the first place
120 return new DOMRpcRoutingTable(b.build(), schemaContext);
123 boolean contains(final DOMRpcIdentifier input) {
124 final AbstractDOMRpcRoutingTableEntry contexts = rpcs.get(input.getType());
125 return contexts != null && contexts.containsContext(input.getContextReference());
129 Map<SchemaPath, Set<YangInstanceIdentifier>> getRpcs() {
130 return Maps.transformValues(rpcs, AbstractDOMRpcRoutingTableEntry::registeredIdentifiers);
133 Map<SchemaPath, Set<YangInstanceIdentifier>> getRpcs(final DOMRpcAvailabilityListener listener) {
134 final Map<SchemaPath, Set<YangInstanceIdentifier>> ret = new HashMap<>(rpcs.size());
135 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> e : rpcs.entrySet()) {
136 final Set<YangInstanceIdentifier> ids = e.getValue().registeredIdentifiers(listener);
137 if (!ids.isEmpty()) {
138 ret.put(e.getKey(), ids);
145 private static RpcDefinition findRpcDefinition(final SchemaContext context, final SchemaPath schemaPath) {
146 if (context != null) {
147 final QName qname = schemaPath.getPathFromRoot().iterator().next();
148 final Module module = context.findModule(qname.getModule()).orElse(null);
149 if (module != null && module.getRpcs() != null) {
150 for (RpcDefinition rpc : module.getRpcs()) {
151 if (qname.equals(rpc.getQName())) {
161 private static AbstractDOMRpcRoutingTableEntry createRpcEntry(final SchemaContext context, final SchemaPath key,
162 final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> implementations) {
163 final RpcDefinition rpcDef = findRpcDefinition(context, key);
164 if (rpcDef == null) {
165 return new UnknownDOMRpcRoutingTableEntry(key, implementations);
168 final RpcRoutingStrategy strategy = RpcRoutingStrategy.from(rpcDef);
169 if (strategy.isContextBasedRouted()) {
170 return new RoutedDOMRpcRoutingTableEntry(rpcDef, YangInstanceIdentifier.of(strategy.getLeaf()),
174 return new GlobalDOMRpcRoutingTableEntry(rpcDef, implementations);
177 CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final SchemaPath type, final NormalizedNode<?, ?> input) {
178 final AbstractDOMRpcRoutingTableEntry entry = rpcs.get(type);
180 return Futures.<DOMRpcResult, DOMRpcException>immediateFailedCheckedFuture(
181 new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available", type));
184 return entry.invokeRpc(input);
187 DOMRpcRoutingTable setSchemaContext(final SchemaContext context) {
188 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> b = ImmutableMap.builder();
190 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> e : rpcs.entrySet()) {
191 b.put(e.getKey(), createRpcEntry(context, e.getKey(), e.getValue().getImplementations()));
194 return new DOMRpcRoutingTable(b.build(), context);