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.base.Preconditions;
11 import com.google.common.collect.ImmutableMap;
12 import com.google.common.collect.ImmutableMap.Builder;
13 import com.google.common.collect.LinkedListMultimap;
14 import com.google.common.collect.ListMultimap;
15 import com.google.common.collect.Maps;
16 import com.google.common.util.concurrent.CheckedFuture;
17 import com.google.common.util.concurrent.Futures;
18 import java.util.ArrayList;
19 import java.util.Collection;
20 import java.util.Collections;
21 import java.util.List;
23 import java.util.Map.Entry;
25 import org.opendaylight.mdsal.dom.api.DOMRpcException;
26 import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
27 import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
28 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
29 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
30 import org.opendaylight.yangtools.yang.common.QName;
31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
33 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
34 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
35 import org.opendaylight.yangtools.yang.model.api.Module;
36 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
37 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
38 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
39 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
41 final class DOMRpcRoutingTable {
42 private static final QName CONTEXT_REFERENCE = QName.create("urn:opendaylight:yang:extension:yang-ext",
43 "2013-07-09", "context-reference").intern();
45 static final DOMRpcRoutingTable EMPTY = new DOMRpcRoutingTable();
47 private final Map<SchemaPath, AbstractDOMRpcRoutingTableEntry> rpcs;
48 private final SchemaContext schemaContext;
50 private DOMRpcRoutingTable() {
51 rpcs = Collections.emptyMap();
55 private DOMRpcRoutingTable(final Map<SchemaPath, AbstractDOMRpcRoutingTableEntry> rpcs,
56 final SchemaContext schemaContext) {
57 this.rpcs = Preconditions.checkNotNull(rpcs);
58 this.schemaContext = schemaContext;
61 private static ListMultimap<SchemaPath, YangInstanceIdentifier> decomposeIdentifiers(
62 final Set<DOMRpcIdentifier> rpcs) {
63 final ListMultimap<SchemaPath, YangInstanceIdentifier> ret = LinkedListMultimap.create();
64 for (DOMRpcIdentifier i : rpcs) {
65 ret.put(i.getType(), i.getContextReference());
70 DOMRpcRoutingTable add(final DOMRpcImplementation implementation, final Set<DOMRpcIdentifier> rpcs) {
75 // First decompose the identifiers to a multimap
76 final ListMultimap<SchemaPath, YangInstanceIdentifier> toAdd = decomposeIdentifiers(rpcs);
78 // Now iterate over existing entries, modifying them as appropriate...
79 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> mb = ImmutableMap.builder();
80 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> re : this.rpcs.entrySet()) {
81 List<YangInstanceIdentifier> newRpcs = new ArrayList<>(toAdd.removeAll(re.getKey()));
82 if (!newRpcs.isEmpty()) {
83 final AbstractDOMRpcRoutingTableEntry ne = re.getValue().add(implementation, newRpcs);
84 mb.put(re.getKey(), ne);
90 // Finally add whatever is left in the decomposed multimap
91 for (Entry<SchemaPath, Collection<YangInstanceIdentifier>> e : toAdd.asMap().entrySet()) {
92 final Builder<YangInstanceIdentifier, List<DOMRpcImplementation>> vb = ImmutableMap.builder();
93 final List<DOMRpcImplementation> v = Collections.singletonList(implementation);
94 for (YangInstanceIdentifier i : e.getValue()) {
98 mb.put(e.getKey(), createRpcEntry(schemaContext, e.getKey(), vb.build()));
101 return new DOMRpcRoutingTable(mb.build(), schemaContext);
104 DOMRpcRoutingTable remove(final DOMRpcImplementation implementation, final Set<DOMRpcIdentifier> rpcs) {
105 if (rpcs.isEmpty()) {
109 // First decompose the identifiers to a multimap
110 final ListMultimap<SchemaPath, YangInstanceIdentifier> toRemove = decomposeIdentifiers(rpcs);
112 // Now iterate over existing entries, modifying them as appropriate...
113 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> b = ImmutableMap.builder();
114 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> e : this.rpcs.entrySet()) {
115 final List<YangInstanceIdentifier> removed = new ArrayList<>(toRemove.removeAll(e.getKey()));
116 if (!removed.isEmpty()) {
117 final AbstractDOMRpcRoutingTableEntry ne = e.getValue().remove(implementation, removed);
119 b.put(e.getKey(), ne);
126 // All done, whatever is in toRemove, was not there in the first place
127 return new DOMRpcRoutingTable(b.build(), schemaContext);
130 boolean contains(final DOMRpcIdentifier input) {
131 final AbstractDOMRpcRoutingTableEntry contexts = rpcs.get(input.getType());
132 return contexts != null && contexts.containsContext(input.getContextReference());
135 Map<SchemaPath, Set<YangInstanceIdentifier>> getRpcs() {
136 return Maps.transformValues(rpcs, AbstractDOMRpcRoutingTableEntry::registeredIdentifiers);
139 private static RpcDefinition findRpcDefinition(final SchemaContext context, final SchemaPath schemaPath) {
140 if (context != null) {
141 final QName qname = schemaPath.getPathFromRoot().iterator().next();
142 final Module module = context.findModuleByNamespaceAndRevision(qname.getNamespace(), qname.getRevision());
143 if (module != null && module.getRpcs() != null) {
144 for (RpcDefinition rpc : module.getRpcs()) {
145 if (qname.equals(rpc.getQName())) {
155 private static AbstractDOMRpcRoutingTableEntry createRpcEntry(final SchemaContext context, final SchemaPath key,
156 final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> implementations) {
157 final RpcDefinition rpcDef = findRpcDefinition(context, key);
158 if (rpcDef != null) {
159 final ContainerSchemaNode input = rpcDef.getInput();
161 for (DataSchemaNode c : input.getChildNodes()) {
162 for (UnknownSchemaNode extension : c.getUnknownSchemaNodes()) {
163 if (CONTEXT_REFERENCE.equals(extension.getNodeType())) {
164 final YangInstanceIdentifier keyId =
165 YangInstanceIdentifier.builder().node(c.getQName()).build();
166 return new RoutedDOMRpcRoutingTableEntry(rpcDef, keyId, implementations);
172 return new GlobalDOMRpcRoutingTableEntry(rpcDef, implementations);
174 return new UnknownDOMRpcRoutingTableEntry(key, implementations);
178 CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final SchemaPath type, final NormalizedNode<?, ?> input) {
179 final AbstractDOMRpcRoutingTableEntry entry = rpcs.get(type);
181 return Futures.<DOMRpcResult, DOMRpcException>immediateFailedCheckedFuture(
182 new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available", type));
185 return entry.invokeRpc(input);
188 DOMRpcRoutingTable setSchemaContext(final SchemaContext context) {
189 final Builder<SchemaPath, AbstractDOMRpcRoutingTableEntry> b = ImmutableMap.builder();
191 for (Entry<SchemaPath, AbstractDOMRpcRoutingTableEntry> e : rpcs.entrySet()) {
192 b.put(e.getKey(), createRpcEntry(context, e.getKey(), e.getValue().getImplementations()));
195 return new DOMRpcRoutingTable(b.build(), context);