2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.restconf.nb.rfc8040.rests.transactions;
10 import static com.google.common.base.Verify.verifyNotNull;
11 import static java.util.Objects.requireNonNull;
12 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.fromInstanceId;
14 import com.google.common.annotations.VisibleForTesting;
15 import com.google.common.collect.ImmutableMap;
16 import com.google.common.collect.ImmutableSet;
17 import com.google.common.collect.ImmutableSetMultimap;
18 import com.google.common.io.CharSource;
19 import com.google.common.util.concurrent.FutureCallback;
20 import com.google.common.util.concurrent.Futures;
21 import com.google.common.util.concurrent.ListenableFuture;
22 import com.google.common.util.concurrent.MoreExecutors;
23 import java.io.IOException;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.Comparator;
28 import java.util.HashMap;
29 import java.util.List;
31 import java.util.Map.Entry;
32 import java.util.NoSuchElementException;
33 import java.util.Optional;
34 import java.util.concurrent.CancellationException;
35 import java.util.function.BiFunction;
36 import java.util.function.Function;
37 import java.util.stream.Collectors;
38 import org.eclipse.jdt.annotation.NonNull;
39 import org.eclipse.jdt.annotation.NonNullByDefault;
40 import org.eclipse.jdt.annotation.Nullable;
41 import org.opendaylight.mdsal.common.api.CommitInfo;
42 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
43 import org.opendaylight.mdsal.dom.api.DOMActionException;
44 import org.opendaylight.mdsal.dom.api.DOMActionResult;
45 import org.opendaylight.mdsal.dom.api.DOMActionService;
46 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
47 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
48 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
49 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
50 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
51 import org.opendaylight.mdsal.dom.api.DOMRpcService;
52 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
53 import org.opendaylight.mdsal.dom.api.DOMSchemaService.YangTextSourceExtension;
54 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
55 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
56 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
57 import org.opendaylight.restconf.api.ApiPath;
58 import org.opendaylight.restconf.api.query.ContentParam;
59 import org.opendaylight.restconf.api.query.WithDefaultsParam;
60 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
61 import org.opendaylight.restconf.common.errors.RestconfError;
62 import org.opendaylight.restconf.common.errors.RestconfFuture;
63 import org.opendaylight.restconf.common.errors.SettableRestconfFuture;
64 import org.opendaylight.restconf.common.patch.PatchContext;
65 import org.opendaylight.restconf.common.patch.PatchStatusContext;
66 import org.opendaylight.restconf.common.patch.PatchStatusEntity;
67 import org.opendaylight.restconf.nb.rfc8040.Insert;
68 import org.opendaylight.restconf.nb.rfc8040.legacy.ErrorTags;
69 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
70 import org.opendaylight.restconf.nb.rfc8040.legacy.QueryParameters;
71 import org.opendaylight.restconf.nb.rfc8040.utils.parser.YangInstanceIdentifierSerializer;
72 import org.opendaylight.restconf.server.api.ChildBody;
73 import org.opendaylight.restconf.server.api.ConfigurationMetadata;
74 import org.opendaylight.restconf.server.api.DataGetParams;
75 import org.opendaylight.restconf.server.api.DataGetResult;
76 import org.opendaylight.restconf.server.api.DataPatchPath;
77 import org.opendaylight.restconf.server.api.DataPatchResult;
78 import org.opendaylight.restconf.server.api.DataPostBody;
79 import org.opendaylight.restconf.server.api.DataPostPath;
80 import org.opendaylight.restconf.server.api.DataPostResult;
81 import org.opendaylight.restconf.server.api.DataPostResult.CreateResource;
82 import org.opendaylight.restconf.server.api.DataPostResult.InvokeOperation;
83 import org.opendaylight.restconf.server.api.DataPutPath;
84 import org.opendaylight.restconf.server.api.DataPutResult;
85 import org.opendaylight.restconf.server.api.DataYangPatchResult;
86 import org.opendaylight.restconf.server.api.DatabindContext;
87 import org.opendaylight.restconf.server.api.OperationInputBody;
88 import org.opendaylight.restconf.server.api.OperationsGetResult;
89 import org.opendaylight.restconf.server.api.OperationsPostPath;
90 import org.opendaylight.restconf.server.api.OperationsPostResult;
91 import org.opendaylight.restconf.server.api.PatchBody;
92 import org.opendaylight.restconf.server.api.ResourceBody;
93 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
94 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.InstanceReference;
95 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.Path.Action;
96 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.Path.Data;
97 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.Path.Rpc;
98 import org.opendaylight.restconf.server.spi.OperationInput;
99 import org.opendaylight.restconf.server.spi.RpcImplementation;
100 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
101 import org.opendaylight.yangtools.yang.common.Empty;
102 import org.opendaylight.yangtools.yang.common.ErrorTag;
103 import org.opendaylight.yangtools.yang.common.ErrorType;
104 import org.opendaylight.yangtools.yang.common.QName;
105 import org.opendaylight.yangtools.yang.common.QNameModule;
106 import org.opendaylight.yangtools.yang.common.Revision;
107 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
108 import org.opendaylight.yangtools.yang.common.XMLNamespace;
109 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
110 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
111 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
112 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
113 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
114 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
116 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
117 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
118 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
119 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
121 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
122 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
123 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
124 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
125 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
126 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
127 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
128 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
129 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
130 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
131 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
132 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
133 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
134 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
135 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
136 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
137 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
138 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
139 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
140 import org.opendaylight.yangtools.yang.model.api.source.SourceRepresentation;
141 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
142 import org.opendaylight.yangtools.yang.model.api.source.YinTextSource;
143 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
144 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
145 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
146 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
147 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
148 import org.slf4j.Logger;
149 import org.slf4j.LoggerFactory;
152 * Baseline execution strategy for various RESTCONF operations.
154 * @see NetconfRestconfStrategy
155 * @see MdsalRestconfStrategy
157 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
158 // operations. This should be handled through proper allocation indirection.
159 public abstract class RestconfStrategy {
161 public record StrategyAndPath(RestconfStrategy strategy, Data path) {
162 public StrategyAndPath {
163 requireNonNull(strategy);
164 requireNonNull(path);
169 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
170 * points with possible nesting.
172 * @param strategy the strategy to use
173 * @param tail the {@link ApiPath} tail to use with the strategy
176 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
177 public StrategyAndTail {
178 requireNonNull(strategy);
179 requireNonNull(tail);
183 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
184 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
185 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
186 private static final @NonNull DataPatchResult PATCH_EMPTY = new DataPatchResult();
188 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
189 private final @NonNull ApiPathNormalizer pathNormalizer;
190 private final @NonNull DatabindContext databind;
191 private final YangTextSourceExtension sourceProvider;
192 private final DOMMountPointService mountPointService;
193 private final DOMActionService actionService;
194 private final DOMRpcService rpcService;
196 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
197 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
198 final YangTextSourceExtension sourceProvider, final @Nullable DOMMountPointService mountPointService) {
199 this.databind = requireNonNull(databind);
200 this.localRpcs = requireNonNull(localRpcs);
201 this.rpcService = rpcService;
202 this.actionService = actionService;
203 this.sourceProvider = sourceProvider;
204 this.mountPointService = mountPointService;
205 pathNormalizer = new ApiPathNormalizer(databind);
208 public final @NonNull StrategyAndPath resolveStrategyPath(final ApiPath path) {
209 final var andTail = resolveStrategy(path);
210 final var strategy = andTail.strategy();
211 return new StrategyAndPath(strategy, strategy.pathNormalizer.normalizeDataPath(andTail.tail()));
215 * Resolve any and all {@code yang-ext:mount} to the target {@link StrategyAndTail}.
217 * @param path {@link ApiPath} to resolve
218 * @return A strategy and the remaining path
219 * @throws NullPointerException if {@code path} is {@code null}
221 public final @NonNull StrategyAndTail resolveStrategy(final ApiPath path) {
222 var mount = path.indexOf("yang-ext", "mount");
224 return new StrategyAndTail(this, path);
226 if (mountPointService == null) {
227 throw new RestconfDocumentedException("Mount point service is not available",
228 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
230 final var mountPath = path.subPath(0, mount);
231 final var dataPath = pathNormalizer.normalizeDataPath(path.subPath(0, mount));
232 final var mountPoint = mountPointService.getMountPoint(dataPath.instance())
233 .orElseThrow(() -> new RestconfDocumentedException("Mount point '" + mountPath + "' does not exist",
234 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
236 return createStrategy(mountPath, mountPoint).resolveStrategy(path.subPath(mount + 1));
239 private static @NonNull RestconfStrategy createStrategy(final ApiPath mountPath, final DOMMountPoint mountPoint) {
240 final var mountSchemaService = mountPoint.getService(DOMSchemaService.class)
241 .orElseThrow(() -> new RestconfDocumentedException(
242 "Mount point '" + mountPath + "' does not expose DOMSchemaService",
243 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
244 final var mountModelContext = mountSchemaService.getGlobalContext();
245 if (mountModelContext == null) {
246 throw new RestconfDocumentedException("Mount point '" + mountPath + "' does not have any models",
247 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT);
249 final var mountDatabind = DatabindContext.ofModel(mountModelContext);
250 final var mountPointService = mountPoint.getService(DOMMountPointService.class).orElse(null);
251 final var rpcService = mountPoint.getService(DOMRpcService.class).orElse(null);
252 final var actionService = mountPoint.getService(DOMActionService.class).orElse(null);
253 final var sourceProvider = mountPoint.getService(DOMSchemaService.class)
254 .flatMap(schema -> Optional.ofNullable(schema.extension(YangTextSourceExtension.class)))
257 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
258 if (netconfService.isPresent()) {
259 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
260 sourceProvider, mountPointService);
262 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
263 if (dataBroker.isPresent()) {
264 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), rpcService, actionService,
265 sourceProvider, mountPointService);
267 LOG.warn("Mount point {} does not expose a suitable access interface", mountPath);
268 throw new RestconfDocumentedException("Could not find a supported access interface in mount point",
269 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED, mountPoint.getIdentifier());
272 public final @NonNull DatabindContext databind() {
276 public final @NonNull EffectiveModelContext modelContext() {
277 return databind.modelContext();
281 * Lock the entire datastore.
283 * @return A {@link RestconfTransaction}. This transaction needs to be either committed or canceled before doing
286 abstract RestconfTransaction prepareWriteExecution();
289 * Read data from the datastore.
291 * @param store the logical data store which should be modified
292 * @param path the data object path
293 * @return a ListenableFuture containing the result of the read
295 abstract ListenableFuture<Optional<NormalizedNode>> read(LogicalDatastoreType store, YangInstanceIdentifier path);
298 * Check if data already exists in the configuration datastore.
300 * @param path the data object path
301 * @return a ListenableFuture containing the result of the check
303 // FIXME: this method should be hosted in RestconfTransaction
304 // FIXME: this method should only be needed in MdsalRestconfStrategy
305 abstract ListenableFuture<Boolean> exists(YangInstanceIdentifier path);
308 final @NonNull RestconfFuture<DataPatchResult> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
309 final var ret = new SettableRestconfFuture<DataPatchResult>();
310 merge(ret, requireNonNull(path), requireNonNull(data));
314 private void merge(final @NonNull SettableRestconfFuture<DataPatchResult> future,
315 final @NonNull YangInstanceIdentifier path, final @NonNull NormalizedNode data) {
316 final var tx = prepareWriteExecution();
317 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
318 tx.ensureParentsByMerge(path);
319 tx.merge(path, data);
320 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
322 public void onSuccess(final CommitInfo result) {
323 // TODO: extract details once CommitInfo can communicate them
324 future.set(PATCH_EMPTY);
328 public void onFailure(final Throwable cause) {
329 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
331 }, MoreExecutors.directExecutor());
334 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
335 final Map<String, String> queryParameters) {
338 path = pathNormalizer.normalizeDataPath(apiPath);
339 } catch (RestconfDocumentedException e) {
340 return RestconfFuture.failed(e);
345 insert = Insert.ofQueryParameters(databind, queryParameters);
346 } catch (IllegalArgumentException e) {
347 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
348 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
350 final NormalizedNode data;
352 data = body.toNormalizedNode(new DataPutPath(databind, path.inference(), path.instance()));
353 } catch (RestconfDocumentedException e) {
354 return RestconfFuture.failed(e);
356 return putData(path.instance(), data, insert);
360 * Check mount point and prepare variables for put data to DS.
362 * @param path path of data
364 * @param insert {@link Insert}
365 * @return A {@link DataPutResult}
367 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
368 final NormalizedNode data, final @Nullable Insert insert) {
369 final var exists = TransactionUtil.syncAccess(exists(path), path);
371 final ListenableFuture<? extends CommitInfo> commitFuture;
372 if (insert != null) {
373 final var parentPath = path.coerceParent();
374 checkListAndOrderedType(parentPath);
375 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
377 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
380 final var ret = new SettableRestconfFuture<DataPutResult>();
382 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
384 public void onSuccess(final CommitInfo result) {
385 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
389 public void onFailure(final Throwable cause) {
390 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
392 }, MoreExecutors.directExecutor());
397 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
398 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
399 final var tx = prepareWriteExecution();
401 return switch (insert.insert()) {
403 final var readData = tx.readList(parentPath);
404 if (readData == null || readData.isEmpty()) {
405 yield replaceAndCommit(tx, path, data);
407 tx.remove(parentPath);
408 tx.replace(path, data);
409 tx.replace(parentPath, readData);
412 case LAST -> replaceAndCommit(tx, path, data);
414 final var readData = tx.readList(parentPath);
415 if (readData == null || readData.isEmpty()) {
416 yield replaceAndCommit(tx, path, data);
418 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
422 final var readData = tx.readList(parentPath);
423 if (readData == null || readData.isEmpty()) {
424 yield replaceAndCommit(tx, path, data);
426 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
432 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
433 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
434 final boolean before) {
435 tx.remove(path.getParent());
437 int lastItemPosition = 0;
438 for (var nodeChild : readList.body()) {
439 if (nodeChild.name().equals(pointArg)) {
448 int lastInsertedPosition = 0;
449 final var emptySubtree = fromInstanceId(modelContext(), path.getParent());
450 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
451 for (var nodeChild : readList.body()) {
452 if (lastInsertedPosition == lastItemPosition) {
453 tx.replace(path, data);
455 final var childPath = path.coerceParent().node(nodeChild.name());
456 tx.replace(childPath, nodeChild);
457 lastInsertedPosition++;
460 // In case we are inserting after last element
462 if (lastInsertedPosition == lastItemPosition) {
463 tx.replace(path, data);
468 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
469 final YangInstanceIdentifier path, final NormalizedNode data) {
470 tx.replace(path, data);
474 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
475 // FIXME: we have this available in InstanceIdentifierContext
476 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
478 final String message;
479 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
480 if (listSchema.isUserOrdered()) {
483 message = "Insert parameter can be used only with ordered-by user list.";
484 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
485 if (leafListSchema.isUserOrdered()) {
486 return leafListSchema;
488 message = "Insert parameter can be used only with ordered-by user leaf-list.";
490 message = "Insert parameter can be used only with list or leaf-list";
492 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
496 * Check mount point and prepare variables for post data.
500 * @param insert {@link Insert}
501 * @return A {@link RestconfFuture}
503 public final @NonNull RestconfFuture<CreateResource> postData(final YangInstanceIdentifier path,
504 final NormalizedNode data, final @Nullable Insert insert) {
505 final ListenableFuture<? extends CommitInfo> future;
506 if (insert != null) {
507 checkListAndOrderedType(path);
508 future = insertAndCommitPost(path, data, insert);
510 future = createAndCommit(prepareWriteExecution(), path, data);
513 final var ret = new SettableRestconfFuture<CreateResource>();
514 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
516 public void onSuccess(final CommitInfo result) {
517 ret.set(new CreateResource(new YangInstanceIdentifierSerializer(databind).serializePath(
518 data instanceof MapNode mapData && !mapData.isEmpty()
519 ? path.node(mapData.body().iterator().next().name()) : path)));
523 public void onFailure(final Throwable cause) {
524 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
527 }, MoreExecutors.directExecutor());
531 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
532 final NormalizedNode data, final @NonNull Insert insert) {
533 final var tx = prepareWriteExecution();
535 return switch (insert.insert()) {
537 final var readData = tx.readList(path);
538 if (readData == null || readData.isEmpty()) {
539 tx.replace(path, data);
541 checkListDataDoesNotExist(path, data);
543 tx.replace(path, data);
544 tx.replace(path, readData);
548 case LAST -> createAndCommit(tx, path, data);
550 final var readData = tx.readList(path);
551 if (readData == null || readData.isEmpty()) {
552 tx.replace(path, data);
554 checkListDataDoesNotExist(path, data);
555 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
560 final var readData = tx.readList(path);
561 if (readData == null || readData.isEmpty()) {
562 tx.replace(path, data);
564 checkListDataDoesNotExist(path, data);
565 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
573 * Merge data into the configuration datastore, as outlined in
574 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
576 * @param apiPath Path to merge
577 * @param body Data to merge
578 * @return A {@link RestconfFuture}
579 * @throws NullPointerException if any argument is {@code null}
581 public final @NonNull RestconfFuture<DataPatchResult> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
584 path = pathNormalizer.normalizeDataPath(apiPath);
585 } catch (RestconfDocumentedException e) {
586 return RestconfFuture.failed(e);
589 final NormalizedNode data;
591 data = body.toNormalizedNode(new DataPutPath(databind, path.inference(), path.instance()));
592 } catch (RestconfDocumentedException e) {
593 return RestconfFuture.failed(e);
596 return merge(path.instance(), data);
599 public final @NonNull RestconfFuture<DataYangPatchResult> dataPATCH(final ApiPath apiPath, final PatchBody body) {
602 path = pathNormalizer.normalizeDataPath(apiPath);
603 } catch (RestconfDocumentedException e) {
604 return RestconfFuture.failed(e);
607 final PatchContext patch;
609 patch = body.toPatchContext(new DataPatchPath(databind, path.instance()));
610 } catch (IOException e) {
611 LOG.debug("Error parsing YANG Patch input", e);
612 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
613 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
615 return patchData(patch);
619 * Process edit operations of one {@link PatchContext}.
621 * @param patch Patch context to be processed
622 * @return {@link PatchStatusContext}
624 public final @NonNull RestconfFuture<DataYangPatchResult> patchData(final PatchContext patch) {
625 final var editCollection = new ArrayList<PatchStatusEntity>();
626 final var tx = prepareWriteExecution();
628 boolean noError = true;
629 for (var patchEntity : patch.entities()) {
631 final var targetNode = patchEntity.getTargetNode();
632 final var editId = patchEntity.getEditId();
634 switch (patchEntity.getOperation()) {
637 tx.create(targetNode, patchEntity.getNode());
638 editCollection.add(new PatchStatusEntity(editId, true, null));
639 } catch (RestconfDocumentedException e) {
640 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
646 tx.delete(targetNode);
647 editCollection.add(new PatchStatusEntity(editId, true, null));
648 } catch (RestconfDocumentedException e) {
649 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
655 tx.ensureParentsByMerge(targetNode);
656 tx.merge(targetNode, patchEntity.getNode());
657 editCollection.add(new PatchStatusEntity(editId, true, null));
658 } catch (RestconfDocumentedException e) {
659 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
665 tx.replace(targetNode, patchEntity.getNode());
666 editCollection.add(new PatchStatusEntity(editId, true, null));
667 } catch (RestconfDocumentedException e) {
668 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
674 tx.remove(targetNode);
675 editCollection.add(new PatchStatusEntity(editId, true, null));
676 } catch (RestconfDocumentedException e) {
677 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
682 editCollection.add(new PatchStatusEntity(editId, false, List.of(
683 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
684 "Not supported Yang Patch operation"))));
693 final var ret = new SettableRestconfFuture<DataYangPatchResult>();
697 ret.set(new DataYangPatchResult(
698 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false, null)));
702 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
704 public void onSuccess(final CommitInfo result) {
705 ret.set(new DataYangPatchResult(
706 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), true, null)));
710 public void onFailure(final Throwable cause) {
711 // if errors occurred during transaction commit then patch failed and global errors are reported
712 ret.set(new DataYangPatchResult(
713 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false,
714 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors())));
716 }, MoreExecutors.directExecutor());
721 private void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
722 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
723 final boolean before) {
726 int lastItemPosition = 0;
727 for (var nodeChild : readList.body()) {
728 if (nodeChild.name().equals(pointArg)) {
737 int lastInsertedPosition = 0;
738 for (var nodeChild : readList.body()) {
739 if (lastInsertedPosition == lastItemPosition) {
740 tx.replace(path, data);
742 tx.replace(path.node(nodeChild.name()), nodeChild);
743 lastInsertedPosition++;
746 // In case we are inserting after last element
748 if (lastInsertedPosition == lastItemPosition) {
749 tx.replace(path, data);
754 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
755 final YangInstanceIdentifier path, final NormalizedNode data) {
757 tx.create(path, data);
758 } catch (RestconfDocumentedException e) {
759 // close transaction if any and pass exception further
768 * Check if child items do NOT already exists in List at specified {@code path}.
770 * @param data Data to be checked
771 * @param path Path to be checked
772 * @throws RestconfDocumentedException if data already exists.
774 private void checkListDataDoesNotExist(final YangInstanceIdentifier path, final NormalizedNode data) {
775 if (data instanceof NormalizedNodeContainer<?> dataNode) {
776 for (final var node : dataNode.body()) {
777 checkItemDoesNotExists(exists(path.node(node.name())), path.node(node.name()));
780 throw new RestconfDocumentedException("Unexpected node type: " + data.getClass().getName());
785 * Check if items do NOT already exists at specified {@code path}.
787 * @param existsFuture if checked data exists
788 * @param path Path to be checked
789 * @throws RestconfDocumentedException if data already exists.
791 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
792 final YangInstanceIdentifier path) {
793 if (TransactionUtil.syncAccess(existsFuture, path)) {
794 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
795 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
801 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
802 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
804 * @param apiPath Path to delete
805 * @return A {@link RestconfFuture}
806 * @throws NullPointerException if {@code apiPath} is {@code null}
808 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
809 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
812 path = pathNormalizer.normalizeDataPath(apiPath);
813 } catch (RestconfDocumentedException e) {
814 return RestconfFuture.failed(e);
817 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
818 final var ret = new SettableRestconfFuture<Empty>();
819 delete(ret, path.instance());
823 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
825 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath,
826 final DataGetParams params) {
829 path = pathNormalizer.normalizeDataPath(apiPath);
830 } catch (RestconfDocumentedException e) {
831 return RestconfFuture.failed(e);
833 return dataGET(path, params);
836 abstract @NonNull RestconfFuture<DataGetResult> dataGET(Data path, DataGetParams params);
838 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
839 final QueryParameters queryParams, final @Nullable NormalizedNode node,
840 final @Nullable ConfigurationMetadata metadata) {
842 return RestconfFuture.failed(new RestconfDocumentedException(
843 "Request could not be completed because the relevant data model content does not exist",
844 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
847 final var payload = new NormalizedNodePayload(inference, node, queryParams);
848 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
849 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
853 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
854 * inside of object {@link RestconfStrategy} provided as a parameter.
856 * @param content type of data to read (config, state, all)
857 * @param path the path to read
858 * @param defaultsMode value of with-defaults parameter
859 * @return {@link NormalizedNode}
861 // FIXME: NETCONF-1155: this method should asynchronous
863 final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
864 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
865 return switch (content) {
867 // PREPARE STATE DATA NODE
868 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
869 // PREPARE CONFIG DATA NODE
870 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
872 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
873 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
876 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
877 yield defaultsMode == null ? read
878 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
880 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
884 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
885 final YangInstanceIdentifier path) {
886 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
889 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
890 final WithDefaultsMode defaultsMode) {
891 final boolean trim = switch (defaultsMode) {
893 case Explicit -> false;
894 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
895 "Unsupported with-defaults value " + defaultsMode.getName());
898 // FIXME: we have this readily available in InstanceIdentifierContext
899 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
900 if (readData instanceof ContainerNode container) {
901 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
902 buildCont(builder, container.body(), ctxNode, trim);
903 return builder.build();
904 } else if (readData instanceof MapEntryNode mapEntry) {
905 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
906 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
909 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(mapEntry.name());
910 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
911 return builder.build();
913 throw new IllegalStateException("Unhandled data contract " + readData.contract());
917 private static void buildMapEntryBuilder(
918 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
919 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
920 final boolean trim, final List<QName> keys) {
921 for (var child : children) {
922 final var childCtx = getChildContext(ctxNode, child);
924 if (child instanceof ContainerNode container) {
925 appendContainer(builder, container, childCtx, trim);
926 } else if (child instanceof MapNode map) {
927 appendMap(builder, map, childCtx, trim);
928 } else if (child instanceof LeafNode<?> leaf) {
929 appendLeaf(builder, leaf, childCtx, trim, keys);
931 // FIXME: we should never hit this, throw an ISE if this ever happens
932 LOG.debug("Ignoring unhandled child contract {}", child.contract());
937 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
938 final DataSchemaContext ctxNode, final boolean trim) {
939 final var childBuilder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
940 buildCont(childBuilder, container.body(), ctxNode, trim);
941 builder.withChild(childBuilder.build());
944 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
945 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
946 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
947 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
950 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
951 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
953 // This is a combined check for when we need to emit the leaf.
955 // We always have to emit key leaf values
956 keys.contains(leafSchema.getQName())
957 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
959 // When data is retrieved with a <with-defaults> parameter equal to
960 // 'trim', data nodes MUST NOT be reported if they contain the schema
961 // default value. Non-configuration data nodes containing the schema
962 // default value MUST NOT be reported.
964 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
965 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
966 // grasp what we are doing here... emit only if it matches default ???!!!
967 // FIXME: The WithDefaultsParam.EXPLICIT says:
969 // Data nodes set to the YANG default by the client are reported.
971 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
973 // If the "with-defaults" parameter is set to "explicit", then the
974 // server MUST adhere to the default-reporting behavior defined in
975 // Section 3.3 of [RFC6243].
977 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
979 // When data is retrieved with a <with-defaults> parameter equal to
980 // 'explicit', a data node that was set by a client to its schema
981 // default value MUST be reported. A conceptual data node that would be
982 // set by the server to the schema default value MUST NOT be reported.
983 // Non-configuration data nodes containing the schema default value MUST
986 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
987 // This seems to disregard the 'trim = true' case semantics (see above).
988 // Combining the above, though, these checks are missing the 'non-config' check, which would
989 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
990 // Without that input, this really should be covered by the previous case.
991 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
992 builder.withChild(leaf);
996 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
997 final DataSchemaContext childCtx, final boolean trim) {
998 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
999 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
1002 final var childBuilder = switch (map.ordering()) {
1003 case SYSTEM -> ImmutableNodes.newSystemMapBuilder();
1004 case USER -> ImmutableNodes.newUserMapBuilder();
1006 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
1007 listSchema.getKeyDefinition());
1008 builder.withChild(childBuilder.build());
1011 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
1012 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
1013 final List<@NonNull QName> keys) {
1014 for (var entry : entries) {
1015 final var childCtx = getChildContext(ctxNode, entry);
1016 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(entry.name());
1017 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
1018 builder.withChild(mapEntryBuilder.build());
1022 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
1023 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
1024 for (var child : children) {
1025 final var childCtx = getChildContext(ctxNode, child);
1026 if (child instanceof ContainerNode container) {
1027 appendContainer(builder, container, childCtx, trim);
1028 } else if (child instanceof MapNode map) {
1029 appendMap(builder, map, childCtx, trim);
1030 } else if (child instanceof LeafNode<?> leaf) {
1031 appendLeaf(builder, leaf, childCtx, trim, List.of());
1036 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1037 final NormalizedNode child) {
1038 final var childId = child.name();
1039 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1041 if (childCtx == null) {
1042 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1047 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1048 final NormalizedNode configDataNode) {
1049 if (stateDataNode == null) {
1050 // No state, return config
1051 return configDataNode;
1053 if (configDataNode == null) {
1054 // No config, return state
1055 return stateDataNode;
1057 // merge config and state
1058 return mergeStateAndConfigData(stateDataNode, configDataNode);
1062 * Merge state and config data into a single NormalizedNode.
1064 * @param stateDataNode data node of state data
1065 * @param configDataNode data node of config data
1066 * @return {@link NormalizedNode}
1068 private static @NonNull NormalizedNode mergeStateAndConfigData(
1069 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1070 validateNodeMerge(stateDataNode, configDataNode);
1071 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1072 if (configDataNode instanceof RpcDefinition) {
1073 return prepareRpcData(configDataNode, stateDataNode);
1075 return prepareData(configDataNode, stateDataNode);
1080 * Validates whether the two NormalizedNodes can be merged.
1082 * @param stateDataNode data node of state data
1083 * @param configDataNode data node of config data
1085 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1086 final @NonNull NormalizedNode configDataNode) {
1087 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1088 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1089 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1090 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1095 * Prepare and map data for rpc.
1097 * @param configDataNode data node of config data
1098 * @param stateDataNode data node of state data
1099 * @return {@link NormalizedNode}
1101 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1102 final @NonNull NormalizedNode stateDataNode) {
1103 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder()
1104 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1107 mapRpcDataNode(configDataNode, mapEntryBuilder);
1109 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1111 return ImmutableNodes.newSystemMapBuilder()
1112 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1113 .addChild(mapEntryBuilder.build())
1118 * Map node to map entry builder.
1120 * @param dataNode data node
1121 * @param mapEntryBuilder builder for mapping data
1123 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1124 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1125 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1129 * Prepare and map all data from DS.
1131 * @param configDataNode data node of config data
1132 * @param stateDataNode data node of state data
1133 * @return {@link NormalizedNode}
1135 @SuppressWarnings("unchecked")
1136 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1137 final @NonNull NormalizedNode stateDataNode) {
1138 if (configDataNode instanceof UserMapNode configMap) {
1139 final var builder = ImmutableNodes.newUserMapBuilder().withNodeIdentifier(configMap.name());
1140 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1141 return builder.build();
1142 } else if (configDataNode instanceof SystemMapNode configMap) {
1143 final var builder = ImmutableNodes.newSystemMapBuilder().withNodeIdentifier(configMap.name());
1144 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1145 return builder.build();
1146 } else if (configDataNode instanceof MapEntryNode configEntry) {
1147 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(configEntry.name());
1148 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1149 return builder.build();
1150 } else if (configDataNode instanceof ContainerNode configContaienr) {
1151 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(configContaienr.name());
1152 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1153 return builder.build();
1154 } else if (configDataNode instanceof ChoiceNode configChoice) {
1155 final var builder = ImmutableNodes.newChoiceBuilder().withNodeIdentifier(configChoice.name());
1156 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1157 return builder.build();
1158 } else if (configDataNode instanceof LeafNode configLeaf) {
1159 // config trumps oper
1161 } else if (configDataNode instanceof UserLeafSetNode) {
1162 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1163 final var builder = ImmutableNodes.<Object>newUserLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1164 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1165 return builder.build();
1166 } else if (configDataNode instanceof SystemLeafSetNode) {
1167 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1168 final var builder = ImmutableNodes.<Object>newSystemLeafSetBuilder()
1169 .withNodeIdentifier(configLeafSet.name());
1170 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1171 return builder.build();
1172 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1173 // config trumps oper
1175 } else if (configDataNode instanceof UnkeyedListNode configList) {
1176 final var builder = ImmutableNodes.newUnkeyedListBuilder().withNodeIdentifier(configList.name());
1177 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1178 return builder.build();
1179 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1180 final var builder = ImmutableNodes.newUnkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1181 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1182 return builder.build();
1184 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1189 * Map value from container node to builder.
1191 * @param configData collection of config data nodes
1192 * @param stateData collection of state data nodes
1193 * @param builder builder
1195 private static <T extends NormalizedNode> void mapValueToBuilder(
1196 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1197 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1198 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1199 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1201 // merge config and state data of children with different identifiers
1202 mapDataToBuilder(configMap, stateMap, builder);
1204 // merge config and state data of children with the same identifiers
1205 mergeDataToBuilder(configMap, stateMap, builder);
1209 * Map data with different identifiers to builder. Data with different identifiers can be just added
1210 * as childs to parent node.
1212 * @param configMap map of config data nodes
1213 * @param stateMap map of state data nodes
1214 * @param builder - builder
1216 private static <T extends NormalizedNode> void mapDataToBuilder(
1217 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1218 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1219 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1220 y -> builder.addChild(y.getValue()));
1221 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1222 y -> builder.addChild(y.getValue()));
1226 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1227 * go one level down with {@code prepareData} method.
1229 * @param configMap immutable config data
1230 * @param stateMap immutable state data
1231 * @param builder - builder
1233 @SuppressWarnings("unchecked")
1234 private static <T extends NormalizedNode> void mergeDataToBuilder(
1235 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1236 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1237 // it is enough to process only config data because operational contains the same data
1238 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1239 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1242 public @NonNull RestconfFuture<OperationsGetResult> operationsGET() {
1243 final var modelContext = modelContext();
1244 final var modules = modelContext.getModuleStatements();
1245 if (modules.isEmpty()) {
1246 // No modules, or defensive return empty content
1247 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, ImmutableSetMultimap.of()));
1250 // RPC QNames by their XMLNamespace/Revision. This should be a Table, but Revision can be null, which wrecks us.
1251 final var table = new HashMap<XMLNamespace, Map<Revision, ImmutableSet<QName>>>();
1252 for (var entry : modules.entrySet()) {
1253 final var module = entry.getValue();
1254 final var rpcNames = module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
1255 .map(RpcEffectiveStatement::argument)
1256 .collect(ImmutableSet.toImmutableSet());
1257 if (!rpcNames.isEmpty()) {
1258 final var namespace = entry.getKey();
1259 table.computeIfAbsent(namespace.namespace(), ignored -> new HashMap<>())
1260 .put(namespace.revision(), rpcNames);
1264 // Now pick the latest revision for each namespace
1265 final var rpcs = ImmutableSetMultimap.<QNameModule, QName>builder();
1266 for (var entry : table.entrySet()) {
1267 entry.getValue().entrySet().stream()
1268 .sorted(Comparator.comparing(Entry::getKey, (first, second) -> Revision.compare(second, first)))
1270 .ifPresent(row -> rpcs.putAll(QNameModule.of(entry.getKey(), row.getKey()), row.getValue()));
1272 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, rpcs.build()));
1275 public @NonNull RestconfFuture<OperationsGetResult> operationsGET(final ApiPath apiPath) {
1276 if (apiPath.steps().isEmpty()) {
1277 return operationsGET();
1282 rpc = pathNormalizer.normalizeRpcPath(apiPath);
1283 } catch (RestconfDocumentedException e) {
1284 return RestconfFuture.failed(e);
1287 return RestconfFuture.of(new OperationsGetResult.Leaf(rpc.inference().modelContext(), rpc.rpc().argument()));
1290 public @NonNull RestconfFuture<OperationsPostResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1291 final OperationInputBody body) {
1294 path = pathNormalizer.normalizeRpcPath(apiPath);
1295 } catch (RestconfDocumentedException e) {
1296 return RestconfFuture.failed(e);
1299 final var postPath = new OperationsPostPath(databind, path.inference());
1300 final ContainerNode data;
1302 data = body.toContainerNode(postPath);
1303 } catch (IOException e) {
1304 LOG.debug("Error reading input", e);
1305 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1306 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1309 final var type = path.rpc().argument();
1310 final var local = localRpcs.get(type);
1311 if (local != null) {
1312 return local.invoke(restconfURI, new OperationInput(databind, postPath.operation(), data));
1314 if (rpcService == null) {
1315 LOG.debug("RPC invocation is not available");
1316 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1317 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1320 final var ret = new SettableRestconfFuture<OperationsPostResult>();
1321 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1323 public void onSuccess(final DOMRpcResult response) {
1324 final var errors = response.errors();
1325 if (errors.isEmpty()) {
1326 ret.set(new OperationsPostResult(databind, postPath.operation(), response.value()));
1328 LOG.debug("RPC invocation reported {}", response.errors());
1329 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1330 response.errors()));
1335 public void onFailure(final Throwable cause) {
1336 LOG.debug("RPC invocation failed, cause");
1337 if (cause instanceof RestconfDocumentedException ex) {
1340 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1341 ret.setFailure(new RestconfDocumentedException(cause,
1342 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1345 }, MoreExecutors.directExecutor());
1349 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1350 final Class<? extends SourceRepresentation> representation) {
1351 final var src = requireNonNull(source);
1352 if (YangTextSource.class.isAssignableFrom(representation)) {
1353 if (sourceProvider != null) {
1354 final var ret = new SettableRestconfFuture<CharSource>();
1355 Futures.addCallback(sourceProvider.getYangTexttSource(src), new FutureCallback<>() {
1357 public void onSuccess(final YangTextSource result) {
1362 public void onFailure(final Throwable cause) {
1363 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1364 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1365 ErrorTag.OPERATION_FAILED, cause));
1367 }, MoreExecutors.directExecutor());
1370 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1372 if (YinTextSource.class.isAssignableFrom(representation)) {
1373 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1375 return RestconfFuture.failed(new RestconfDocumentedException(
1376 "Unsupported source representation " + representation.getName()));
1379 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1380 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1381 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1382 // If the source identifies a module, things are easy
1383 final var name = source.name().getLocalName();
1384 final var optRevision = Optional.ofNullable(source.revision());
1385 final var optModule = modelContext.findModule(name, optRevision);
1386 if (optModule.isPresent()) {
1387 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1390 // The source could be a submodule, which we need to hunt down
1391 for (var module : modelContext.getModules()) {
1392 for (var submodule : module.getSubmodules()) {
1393 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1394 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1395 submodule.asEffectiveStatement()));
1400 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1401 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1402 sb.append(" not found");
1403 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1404 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1407 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1408 final DataPostBody body, final Map<String, String> queryParameters) {
1409 if (apiPath.steps().isEmpty()) {
1410 return dataCreatePOST(body.toResource(), queryParameters);
1412 final InstanceReference path;
1414 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1415 } catch (RestconfDocumentedException e) {
1416 return RestconfFuture.failed(e);
1418 if (path instanceof Data dataPath) {
1419 try (var resourceBody = body.toResource()) {
1420 return dataCreatePOST(new DataPostPath(databind, dataPath.inference(), dataPath.instance()),
1421 resourceBody, queryParameters);
1424 if (path instanceof Action actionPath) {
1425 try (var inputBody = body.toOperationInput()) {
1426 return dataInvokePOST(actionPath, inputBody);
1429 // Note: this should never happen
1430 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1431 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1434 public @NonNull RestconfFuture<CreateResource> dataCreatePOST(final ChildBody body,
1435 final Map<String, String> queryParameters) {
1436 return dataCreatePOST(new DataPostPath(databind,
1437 SchemaInferenceStack.of(databind.modelContext()).toInference(), YangInstanceIdentifier.of()), body,
1441 private @NonNull RestconfFuture<CreateResource> dataCreatePOST(final DataPostPath path, final ChildBody body,
1442 final Map<String, String> queryParameters) {
1443 final Insert insert;
1445 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1446 } catch (IllegalArgumentException e) {
1447 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1448 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1451 final var payload = body.toPayload(path);
1452 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1455 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1457 for (var arg : args) {
1458 ret = ret.node(arg);
1463 private @NonNull RestconfFuture<InvokeOperation> dataInvokePOST(final Action path, final OperationInputBody body) {
1464 final var inference = path.inference();
1465 final ContainerNode input;
1467 input = body.toContainerNode(new OperationsPostPath(databind, inference));
1468 } catch (IOException e) {
1469 LOG.debug("Error reading input", e);
1470 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1471 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1474 if (actionService == null) {
1475 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1478 final var future = dataInvokePOST(actionService, path, input);
1479 return future.transform(result -> result.getOutput()
1480 .flatMap(output -> output.isEmpty() ? Optional.empty()
1481 : Optional.of(new InvokeOperation(new NormalizedNodePayload(inference, output))))
1482 .orElse(InvokeOperation.EMPTY));
1486 * Invoke Action via ActionServiceHandler.
1488 * @param input input data
1489 * @param yangIId invocation context
1490 * @param schemaPath schema path of data
1491 * @param actionService action service to invoke action
1492 * @return {@link DOMActionResult}
1494 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1495 final Action path, final @NonNull ContainerNode input) {
1496 final var ret = new SettableRestconfFuture<DOMActionResult>();
1498 Futures.addCallback(actionService.invokeAction(
1499 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1500 DOMDataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1501 new FutureCallback<DOMActionResult>() {
1503 public void onSuccess(final DOMActionResult result) {
1504 final var errors = result.getErrors();
1505 LOG.debug("InvokeAction Error Message {}", errors);
1506 if (errors.isEmpty()) {
1509 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1514 public void onFailure(final Throwable cause) {
1515 if (cause instanceof DOMActionException) {
1516 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1517 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1518 } else if (cause instanceof RestconfDocumentedException e) {
1520 } else if (cause instanceof CancellationException) {
1521 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1522 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1524 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1527 }, MoreExecutors.directExecutor());