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;
13 import com.google.common.collect.ImmutableMap;
14 import com.google.common.collect.ImmutableSet;
15 import com.google.common.collect.ImmutableSetMultimap;
16 import com.google.common.io.CharSource;
17 import com.google.common.util.concurrent.FutureCallback;
18 import com.google.common.util.concurrent.Futures;
19 import com.google.common.util.concurrent.ListenableFuture;
20 import com.google.common.util.concurrent.MoreExecutors;
21 import java.io.IOException;
23 import java.util.ArrayList;
24 import java.util.Collection;
25 import java.util.Comparator;
26 import java.util.HashMap;
27 import java.util.List;
29 import java.util.Map.Entry;
30 import java.util.NoSuchElementException;
31 import java.util.Optional;
32 import java.util.concurrent.CancellationException;
33 import java.util.function.BiFunction;
34 import java.util.function.Function;
35 import java.util.stream.Collectors;
36 import org.eclipse.jdt.annotation.NonNull;
37 import org.eclipse.jdt.annotation.NonNullByDefault;
38 import org.eclipse.jdt.annotation.Nullable;
39 import org.opendaylight.mdsal.common.api.CommitInfo;
40 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
41 import org.opendaylight.mdsal.dom.api.DOMActionException;
42 import org.opendaylight.mdsal.dom.api.DOMActionResult;
43 import org.opendaylight.mdsal.dom.api.DOMActionService;
44 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
45 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
46 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
47 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
48 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
49 import org.opendaylight.mdsal.dom.api.DOMRpcService;
50 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
51 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
52 import org.opendaylight.mdsal.dom.api.DOMYangTextSourceProvider;
53 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
54 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
55 import org.opendaylight.restconf.api.ApiPath;
56 import org.opendaylight.restconf.api.query.ContentParam;
57 import org.opendaylight.restconf.api.query.WithDefaultsParam;
58 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
59 import org.opendaylight.restconf.common.errors.RestconfError;
60 import org.opendaylight.restconf.common.errors.RestconfFuture;
61 import org.opendaylight.restconf.common.errors.SettableRestconfFuture;
62 import org.opendaylight.restconf.common.patch.PatchContext;
63 import org.opendaylight.restconf.common.patch.PatchStatusContext;
64 import org.opendaylight.restconf.common.patch.PatchStatusEntity;
65 import org.opendaylight.restconf.nb.rfc8040.Insert;
66 import org.opendaylight.restconf.nb.rfc8040.databind.ChildBody;
67 import org.opendaylight.restconf.nb.rfc8040.databind.DataPostBody;
68 import org.opendaylight.restconf.nb.rfc8040.databind.OperationInputBody;
69 import org.opendaylight.restconf.nb.rfc8040.databind.ResourceBody;
70 import org.opendaylight.restconf.nb.rfc8040.legacy.ErrorTags;
71 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
72 import org.opendaylight.restconf.nb.rfc8040.legacy.QueryParameters;
73 import org.opendaylight.restconf.nb.rfc8040.utils.parser.YangInstanceIdentifierSerializer;
74 import org.opendaylight.restconf.server.api.DataGetParams;
75 import org.opendaylight.restconf.server.api.DataPostPath;
76 import org.opendaylight.restconf.server.api.DataPostResult;
77 import org.opendaylight.restconf.server.api.DataPostResult.CreateResource;
78 import org.opendaylight.restconf.server.api.DataPostResult.InvokeOperation;
79 import org.opendaylight.restconf.server.api.DataPutPath;
80 import org.opendaylight.restconf.server.api.DataPutResult;
81 import org.opendaylight.restconf.server.api.DatabindContext;
82 import org.opendaylight.restconf.server.api.OperationsGetResult;
83 import org.opendaylight.restconf.server.api.OperationsPostPath;
84 import org.opendaylight.restconf.server.api.OperationsPostResult;
85 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
86 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.DataPath;
87 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.InstanceReference;
88 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.OperationPath;
89 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.OperationPath.Rpc;
90 import org.opendaylight.restconf.server.spi.OperationInput;
91 import org.opendaylight.restconf.server.spi.RpcImplementation;
92 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
93 import org.opendaylight.yangtools.yang.common.Empty;
94 import org.opendaylight.yangtools.yang.common.ErrorTag;
95 import org.opendaylight.yangtools.yang.common.ErrorType;
96 import org.opendaylight.yangtools.yang.common.QName;
97 import org.opendaylight.yangtools.yang.common.QNameModule;
98 import org.opendaylight.yangtools.yang.common.Revision;
99 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
100 import org.opendaylight.yangtools.yang.common.XMLNamespace;
101 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
102 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
103 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
104 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
105 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
106 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
107 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
108 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
109 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
110 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
111 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
112 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
113 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
114 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
116 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
117 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
118 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
119 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
121 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
122 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
123 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
124 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
125 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
126 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
127 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
128 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
129 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
130 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
131 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
132 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
133 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
134 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
135 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
136 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
137 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
138 import org.opendaylight.yangtools.yang.model.repo.api.YinTextSchemaSource;
139 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
140 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
141 import org.slf4j.Logger;
142 import org.slf4j.LoggerFactory;
145 * Baseline execution strategy for various RESTCONF operations.
147 * @see NetconfRestconfStrategy
148 * @see MdsalRestconfStrategy
150 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
151 // operations. This should be handled through proper allocation indirection.
152 public abstract class RestconfStrategy {
154 public record StrategyAndPath(RestconfStrategy strategy, DataPath path) {
155 public StrategyAndPath {
156 requireNonNull(strategy);
157 requireNonNull(path);
162 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
163 * points with possible nesting.
165 * @param strategy the strategy to use
166 * @param tail the {@link ApiPath} tail to use with the strategy
169 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
170 public StrategyAndTail {
171 requireNonNull(strategy);
172 requireNonNull(tail);
176 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
178 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
179 private final @NonNull ApiPathNormalizer pathNormalizer;
180 private final @NonNull DatabindContext databind;
181 private final DOMYangTextSourceProvider sourceProvider;
182 private final DOMMountPointService mountPointService;
183 private final DOMActionService actionService;
184 private final DOMRpcService rpcService;
186 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
187 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
188 final DOMYangTextSourceProvider sourceProvider, final @Nullable DOMMountPointService mountPointService) {
189 this.databind = requireNonNull(databind);
190 this.localRpcs = requireNonNull(localRpcs);
191 this.rpcService = rpcService;
192 this.actionService = actionService;
193 this.sourceProvider = sourceProvider;
194 this.mountPointService = mountPointService;
195 pathNormalizer = new ApiPathNormalizer(databind);
198 public final @NonNull StrategyAndPath resolveStrategyPath(final ApiPath path) {
199 final var andTail = resolveStrategy(path);
200 final var strategy = andTail.strategy();
201 return new StrategyAndPath(strategy, strategy.pathNormalizer.normalizeDataPath(andTail.tail()));
205 * Resolve any and all {@code yang-ext:mount} to the target {@link StrategyAndTail}.
207 * @param path {@link ApiPath} to resolve
208 * @return A strategy and the remaining path
209 * @throws NullPointerException if {@code path} is {@code null}
211 public final @NonNull StrategyAndTail resolveStrategy(final ApiPath path) {
212 var mount = path.indexOf("yang-ext", "mount");
214 return new StrategyAndTail(this, path);
216 if (mountPointService == null) {
217 throw new RestconfDocumentedException("Mount point service is not available",
218 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
220 final var mountPath = path.subPath(0, mount);
221 final var dataPath = pathNormalizer.normalizeDataPath(path.subPath(0, mount));
222 final var mountPoint = mountPointService.getMountPoint(dataPath.instance())
223 .orElseThrow(() -> new RestconfDocumentedException("Mount point '" + mountPath + "' does not exist",
224 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
226 return createStrategy(mountPath, mountPoint).resolveStrategy(path.subPath(mount + 1));
229 private static @NonNull RestconfStrategy createStrategy(final ApiPath mountPath, final DOMMountPoint mountPoint) {
230 final var mountSchemaService = mountPoint.getService(DOMSchemaService.class)
231 .orElseThrow(() -> new RestconfDocumentedException(
232 "Mount point '" + mountPath + "' does not expose DOMSchemaService",
233 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
234 final var mountModelContext = mountSchemaService.getGlobalContext();
235 if (mountModelContext == null) {
236 throw new RestconfDocumentedException("Mount point '" + mountPath + "' does not have any models",
237 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT);
239 final var mountDatabind = DatabindContext.ofModel(mountModelContext);
240 final var mountPointService = mountPoint.getService(DOMMountPointService.class).orElse(null);
241 final var rpcService = mountPoint.getService(DOMRpcService.class).orElse(null);
242 final var actionService = mountPoint.getService(DOMActionService.class).orElse(null);
243 final var sourceProvider = mountPoint.getService(DOMSchemaService.class)
244 .flatMap(schema -> Optional.ofNullable(schema.getExtensions().getInstance(DOMYangTextSourceProvider.class)))
247 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
248 if (netconfService.isPresent()) {
249 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
250 sourceProvider, mountPointService);
252 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
253 if (dataBroker.isPresent()) {
254 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), rpcService, actionService,
255 sourceProvider, mountPointService);
257 LOG.warn("Mount point {} does not expose a suitable access interface", mountPath);
258 throw new RestconfDocumentedException("Could not find a supported access interface in mount point",
259 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED, mountPoint.getIdentifier());
262 public final @NonNull DatabindContext databind() {
266 public final @NonNull EffectiveModelContext modelContext() {
267 return databind.modelContext();
271 * Lock the entire datastore.
273 * @return A {@link RestconfTransaction}. This transaction needs to be either committed or canceled before doing
276 abstract RestconfTransaction prepareWriteExecution();
279 * Read data from the datastore.
281 * @param store the logical data store which should be modified
282 * @param path the data object path
283 * @return a ListenableFuture containing the result of the read
285 abstract ListenableFuture<Optional<NormalizedNode>> read(LogicalDatastoreType store, YangInstanceIdentifier path);
288 * Check if data already exists in the configuration datastore.
290 * @param path the data object path
291 * @return a ListenableFuture containing the result of the check
293 // FIXME: this method should be hosted in RestconfTransaction
294 // FIXME: this method should only be needed in MdsalRestconfStrategy
295 abstract ListenableFuture<Boolean> exists(YangInstanceIdentifier path);
298 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
299 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
301 * @param path Path to delete
302 * @return A {@link RestconfFuture}
303 * @throws NullPointerException if {@code path} is {@code null}
305 public final @NonNull RestconfFuture<Empty> delete(final YangInstanceIdentifier path) {
306 final var ret = new SettableRestconfFuture<Empty>();
307 delete(ret, requireNonNull(path));
311 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
314 * Merge data into the configuration datastore, as outlined in
315 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
317 * @param path Path to merge
318 * @param data Data to merge
319 * @return A {@link RestconfFuture}
320 * @throws NullPointerException if any argument is {@code null}
322 public final @NonNull RestconfFuture<Empty> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
323 final var ret = new SettableRestconfFuture<Empty>();
324 merge(ret, requireNonNull(path), requireNonNull(data));
328 private void merge(final @NonNull SettableRestconfFuture<Empty> future, final @NonNull YangInstanceIdentifier path,
329 final @NonNull NormalizedNode data) {
330 final var tx = prepareWriteExecution();
331 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
332 tx.ensureParentsByMerge(path);
333 tx.merge(path, data);
334 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
336 public void onSuccess(final CommitInfo result) {
337 future.set(Empty.value());
341 public void onFailure(final Throwable cause) {
342 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
344 }, MoreExecutors.directExecutor());
347 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
348 final Map<String, String> queryParameters) {
351 path = pathNormalizer.normalizeDataPath(apiPath);
352 } catch (RestconfDocumentedException e) {
353 return RestconfFuture.failed(e);
358 insert = Insert.ofQueryParameters(databind, queryParameters);
359 } catch (IllegalArgumentException e) {
360 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
361 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
363 final NormalizedNode data;
365 data = body.toNormalizedNode(new DataPutPath(databind, path.inference(), path.instance()));
366 } catch (RestconfDocumentedException e) {
367 return RestconfFuture.failed(e);
369 return putData(path.instance(), data, insert);
373 * Check mount point and prepare variables for put data to DS.
375 * @param path path of data
377 * @param insert {@link Insert}
378 * @return A {@link DataPutResult}
380 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
381 final NormalizedNode data, final @Nullable Insert insert) {
382 final var exists = TransactionUtil.syncAccess(exists(path), path);
384 final ListenableFuture<? extends CommitInfo> commitFuture;
385 if (insert != null) {
386 final var parentPath = path.coerceParent();
387 checkListAndOrderedType(parentPath);
388 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
390 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
393 final var ret = new SettableRestconfFuture<DataPutResult>();
395 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
397 public void onSuccess(final CommitInfo result) {
398 ret.set(exists ? DataPutResult.REPLACED : DataPutResult.CREATED);
402 public void onFailure(final Throwable cause) {
403 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
405 }, MoreExecutors.directExecutor());
410 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
411 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
412 final var tx = prepareWriteExecution();
414 return switch (insert.insert()) {
416 final var readData = tx.readList(parentPath);
417 if (readData == null || readData.isEmpty()) {
418 yield replaceAndCommit(tx, path, data);
420 tx.remove(parentPath);
421 tx.replace(path, data);
422 tx.replace(parentPath, readData);
425 case LAST -> replaceAndCommit(tx, path, data);
427 final var readData = tx.readList(parentPath);
428 if (readData == null || readData.isEmpty()) {
429 yield replaceAndCommit(tx, path, data);
431 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
435 final var readData = tx.readList(parentPath);
436 if (readData == null || readData.isEmpty()) {
437 yield replaceAndCommit(tx, path, data);
439 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
445 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
446 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
447 final boolean before) {
448 tx.remove(path.getParent());
450 int lastItemPosition = 0;
451 for (var nodeChild : readList.body()) {
452 if (nodeChild.name().equals(pointArg)) {
461 int lastInsertedPosition = 0;
462 final var emptySubtree = ImmutableNodes.fromInstanceId(modelContext(), path.getParent());
463 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
464 for (var nodeChild : readList.body()) {
465 if (lastInsertedPosition == lastItemPosition) {
466 tx.replace(path, data);
468 final var childPath = path.coerceParent().node(nodeChild.name());
469 tx.replace(childPath, nodeChild);
470 lastInsertedPosition++;
474 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
475 final YangInstanceIdentifier path, final NormalizedNode data) {
476 tx.replace(path, data);
480 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
481 // FIXME: we have this available in InstanceIdentifierContext
482 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
484 final String message;
485 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
486 if (listSchema.isUserOrdered()) {
489 message = "Insert parameter can be used only with ordered-by user list.";
490 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
491 if (leafListSchema.isUserOrdered()) {
492 return leafListSchema;
494 message = "Insert parameter can be used only with ordered-by user leaf-list.";
496 message = "Insert parameter can be used only with list or leaf-list";
498 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
502 * Check mount point and prepare variables for post data.
506 * @param insert {@link Insert}
507 * @return A {@link RestconfFuture}
509 public final @NonNull RestconfFuture<CreateResource> postData(final YangInstanceIdentifier path,
510 final NormalizedNode data, final @Nullable Insert insert) {
511 final ListenableFuture<? extends CommitInfo> future;
512 if (insert != null) {
513 final var parentPath = path.coerceParent();
514 checkListAndOrderedType(parentPath);
515 future = insertAndCommitPost(path, data, insert, parentPath);
517 future = createAndCommit(prepareWriteExecution(), path, data);
520 final var ret = new SettableRestconfFuture<CreateResource>();
521 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
523 public void onSuccess(final CommitInfo result) {
524 ret.set(new CreateResource(new YangInstanceIdentifierSerializer(databind).serializePath(
525 data instanceof MapNode mapData && !mapData.isEmpty()
526 ? path.node(mapData.body().iterator().next().name()) : path)));
530 public void onFailure(final Throwable cause) {
531 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
534 }, MoreExecutors.directExecutor());
538 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
539 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parent) {
540 final var grandParent = parent.coerceParent();
541 final var tx = prepareWriteExecution();
543 return switch (insert.insert()) {
545 final var readData = tx.readList(grandParent);
546 if (readData == null || readData.isEmpty()) {
547 tx.replace(path, data);
549 checkItemDoesNotExists(exists(path), path);
550 tx.remove(grandParent);
551 tx.replace(path, data);
552 tx.replace(grandParent, readData);
556 case LAST -> createAndCommit(tx, path, data);
558 final var readData = tx.readList(grandParent);
559 if (readData == null || readData.isEmpty()) {
560 tx.replace(path, data);
562 checkItemDoesNotExists(exists(path), path);
563 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, grandParent, true);
568 final var readData = tx.readList(grandParent);
569 if (readData == null || readData.isEmpty()) {
570 tx.replace(path, data);
572 checkItemDoesNotExists(exists(path), path);
573 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, grandParent, false);
581 * Process edit operations of one {@link PatchContext}.
583 * @param patch Patch context to be processed
584 * @return {@link PatchStatusContext}
586 public final @NonNull RestconfFuture<PatchStatusContext> patchData(final PatchContext patch) {
587 final var editCollection = new ArrayList<PatchStatusEntity>();
588 final var tx = prepareWriteExecution();
590 boolean noError = true;
591 for (var patchEntity : patch.entities()) {
593 final var targetNode = patchEntity.getTargetNode();
594 final var editId = patchEntity.getEditId();
596 switch (patchEntity.getOperation()) {
599 tx.create(targetNode, patchEntity.getNode());
600 editCollection.add(new PatchStatusEntity(editId, true, null));
601 } catch (RestconfDocumentedException e) {
602 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
608 tx.delete(targetNode);
609 editCollection.add(new PatchStatusEntity(editId, true, null));
610 } catch (RestconfDocumentedException e) {
611 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
617 tx.ensureParentsByMerge(targetNode);
618 tx.merge(targetNode, patchEntity.getNode());
619 editCollection.add(new PatchStatusEntity(editId, true, null));
620 } catch (RestconfDocumentedException e) {
621 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
627 tx.replace(targetNode, patchEntity.getNode());
628 editCollection.add(new PatchStatusEntity(editId, true, null));
629 } catch (RestconfDocumentedException e) {
630 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
636 tx.remove(targetNode);
637 editCollection.add(new PatchStatusEntity(editId, true, null));
638 } catch (RestconfDocumentedException e) {
639 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
644 editCollection.add(new PatchStatusEntity(editId, false, List.of(
645 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
646 "Not supported Yang Patch operation"))));
655 final var ret = new SettableRestconfFuture<PatchStatusContext>();
659 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false, null));
663 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
665 public void onSuccess(final CommitInfo result) {
666 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), true,
671 public void onFailure(final Throwable cause) {
672 // if errors occurred during transaction commit then patch failed and global errors are reported
673 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false,
674 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors()));
676 }, MoreExecutors.directExecutor());
681 private void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
682 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
683 final YangInstanceIdentifier grandParentPath, final boolean before) {
684 tx.remove(grandParentPath);
686 int lastItemPosition = 0;
687 for (var nodeChild : readList.body()) {
688 if (nodeChild.name().equals(pointArg)) {
697 int lastInsertedPosition = 0;
698 final var emptySubtree = ImmutableNodes.fromInstanceId(modelContext(), grandParentPath);
699 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
700 for (var nodeChild : readList.body()) {
701 if (lastInsertedPosition == lastItemPosition) {
702 tx.replace(path, data);
704 tx.replace(grandParentPath.node(nodeChild.name()), nodeChild);
705 lastInsertedPosition++;
709 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
710 final YangInstanceIdentifier path, final NormalizedNode data) {
712 tx.create(path, data);
713 } catch (RestconfDocumentedException e) {
714 // close transaction if any and pass exception further
723 * Check if items do NOT already exists at specified {@code path}.
725 * @param existsFuture if checked data exists
726 * @param path Path to be checked
727 * @throws RestconfDocumentedException if data already exists.
729 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
730 final YangInstanceIdentifier path) {
731 if (TransactionUtil.syncAccess(existsFuture, path)) {
732 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
733 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
738 public final @NonNull RestconfFuture<NormalizedNodePayload> dataGET(final ApiPath apiPath,
739 final DataGetParams params) {
742 path = pathNormalizer.normalizeDataPath(apiPath);
743 } catch (RestconfDocumentedException e) {
744 return RestconfFuture.failed(e);
746 return dataGET(path, params);
749 abstract @NonNull RestconfFuture<NormalizedNodePayload> dataGET(DataPath path, DataGetParams params);
751 static final @NonNull RestconfFuture<NormalizedNodePayload> completeDataGET(final Inference inference,
752 final QueryParameters queryParams, final NormalizedNode node) {
754 return RestconfFuture.failed(new RestconfDocumentedException(
755 "Request could not be completed because the relevant data model content does not exist",
756 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
759 return RestconfFuture.of(new NormalizedNodePayload(inference, node, queryParams));
763 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
764 * inside of object {@link RestconfStrategy} provided as a parameter.
766 * @param content type of data to read (config, state, all)
767 * @param path the path to read
768 * @param defaultsMode value of with-defaults parameter
769 * @return {@link NormalizedNode}
771 // FIXME: NETCONF-1155: this method should asynchronous
772 public final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
773 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
774 return switch (content) {
776 // PREPARE STATE DATA NODE
777 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
778 // PREPARE CONFIG DATA NODE
779 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
781 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
782 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
785 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
786 yield defaultsMode == null ? read
787 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
789 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
793 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
794 final YangInstanceIdentifier path) {
795 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
798 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
799 final WithDefaultsMode defaultsMode) {
800 final boolean trim = switch (defaultsMode) {
802 case Explicit -> false;
803 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
804 "Unsupported with-defaults value " + defaultsMode.getName());
807 // FIXME: we have this readily available in InstanceIdentifierContext
808 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
809 if (readData instanceof ContainerNode container) {
810 final var builder = Builders.containerBuilder().withNodeIdentifier(container.name());
811 buildCont(builder, container.body(), ctxNode, trim);
812 return builder.build();
813 } else if (readData instanceof MapEntryNode mapEntry) {
814 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
815 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
818 final var builder = Builders.mapEntryBuilder().withNodeIdentifier(mapEntry.name());
819 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
820 return builder.build();
822 throw new IllegalStateException("Unhandled data contract " + readData.contract());
826 private static void buildMapEntryBuilder(
827 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
828 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
829 final boolean trim, final List<QName> keys) {
830 for (var child : children) {
831 final var childCtx = getChildContext(ctxNode, child);
833 if (child instanceof ContainerNode container) {
834 appendContainer(builder, container, childCtx, trim);
835 } else if (child instanceof MapNode map) {
836 appendMap(builder, map, childCtx, trim);
837 } else if (child instanceof LeafNode<?> leaf) {
838 appendLeaf(builder, leaf, childCtx, trim, keys);
840 // FIXME: we should never hit this, throw an ISE if this ever happens
841 LOG.debug("Ignoring unhandled child contract {}", child.contract());
846 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
847 final DataSchemaContext ctxNode, final boolean trim) {
848 final var childBuilder = Builders.containerBuilder().withNodeIdentifier(container.name());
849 buildCont(childBuilder, container.body(), ctxNode, trim);
850 builder.withChild(childBuilder.build());
853 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
854 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
855 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
856 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
859 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
860 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
862 // This is a combined check for when we need to emit the leaf.
864 // We always have to emit key leaf values
865 keys.contains(leafSchema.getQName())
866 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
868 // When data is retrieved with a <with-defaults> parameter equal to
869 // 'trim', data nodes MUST NOT be reported if they contain the schema
870 // default value. Non-configuration data nodes containing the schema
871 // default value MUST NOT be reported.
873 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
874 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
875 // grasp what we are doing here... emit only if it matches default ???!!!
876 // FIXME: The WithDefaultsParam.EXPLICIT says:
878 // Data nodes set to the YANG default by the client are reported.
880 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
882 // If the "with-defaults" parameter is set to "explicit", then the
883 // server MUST adhere to the default-reporting behavior defined in
884 // Section 3.3 of [RFC6243].
886 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
888 // When data is retrieved with a <with-defaults> parameter equal to
889 // 'explicit', a data node that was set by a client to its schema
890 // default value MUST be reported. A conceptual data node that would be
891 // set by the server to the schema default value MUST NOT be reported.
892 // Non-configuration data nodes containing the schema default value MUST
895 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
896 // This seems to disregard the 'trim = true' case semantics (see above).
897 // Combining the above, though, these checks are missing the 'non-config' check, which would
898 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
899 // Without that input, this really should be covered by the previous case.
900 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
901 builder.withChild(leaf);
905 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
906 final DataSchemaContext childCtx, final boolean trim) {
907 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
908 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
911 final var childBuilder = switch (map.ordering()) {
912 case SYSTEM -> Builders.mapBuilder();
913 case USER -> Builders.orderedMapBuilder();
915 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
916 listSchema.getKeyDefinition());
917 builder.withChild(childBuilder.build());
920 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
921 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
922 final List<@NonNull QName> keys) {
923 for (var entry : entries) {
924 final var childCtx = getChildContext(ctxNode, entry);
925 final var mapEntryBuilder = Builders.mapEntryBuilder().withNodeIdentifier(entry.name());
926 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
927 builder.withChild(mapEntryBuilder.build());
931 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
932 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
933 for (var child : children) {
934 final var childCtx = getChildContext(ctxNode, child);
935 if (child instanceof ContainerNode container) {
936 appendContainer(builder, container, childCtx, trim);
937 } else if (child instanceof MapNode map) {
938 appendMap(builder, map, childCtx, trim);
939 } else if (child instanceof LeafNode<?> leaf) {
940 appendLeaf(builder, leaf, childCtx, trim, List.of());
945 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
946 final NormalizedNode child) {
947 final var childId = child.name();
948 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
950 if (childCtx == null) {
951 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
956 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
957 final NormalizedNode configDataNode) {
959 if (stateDataNode == null && configDataNode == null) {
963 // return config data
964 if (stateDataNode == null) {
965 return configDataNode;
969 if (configDataNode == null) {
970 return stateDataNode;
973 // merge data from config and state
974 return mergeStateAndConfigData(stateDataNode, configDataNode);
978 * Merge state and config data into a single NormalizedNode.
980 * @param stateDataNode data node of state data
981 * @param configDataNode data node of config data
982 * @return {@link NormalizedNode}
984 private static @NonNull NormalizedNode mergeStateAndConfigData(
985 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
986 validateNodeMerge(stateDataNode, configDataNode);
987 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
988 if (configDataNode instanceof RpcDefinition) {
989 return prepareRpcData(configDataNode, stateDataNode);
991 return prepareData(configDataNode, stateDataNode);
996 * Validates whether the two NormalizedNodes can be merged.
998 * @param stateDataNode data node of state data
999 * @param configDataNode data node of config data
1001 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1002 final @NonNull NormalizedNode configDataNode) {
1003 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1004 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1005 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1006 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1011 * Prepare and map data for rpc.
1013 * @param configDataNode data node of config data
1014 * @param stateDataNode data node of state data
1015 * @return {@link NormalizedNode}
1017 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1018 final @NonNull NormalizedNode stateDataNode) {
1019 final var mapEntryBuilder = Builders.mapEntryBuilder()
1020 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1023 mapRpcDataNode(configDataNode, mapEntryBuilder);
1025 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1027 return Builders.mapBuilder()
1028 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1029 .addChild(mapEntryBuilder.build())
1034 * Map node to map entry builder.
1036 * @param dataNode data node
1037 * @param mapEntryBuilder builder for mapping data
1039 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1040 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1041 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1045 * Prepare and map all data from DS.
1047 * @param configDataNode data node of config data
1048 * @param stateDataNode data node of state data
1049 * @return {@link NormalizedNode}
1051 @SuppressWarnings("unchecked")
1052 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1053 final @NonNull NormalizedNode stateDataNode) {
1054 if (configDataNode instanceof UserMapNode configMap) {
1055 final var builder = Builders.orderedMapBuilder().withNodeIdentifier(configMap.name());
1056 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1057 return builder.build();
1058 } else if (configDataNode instanceof SystemMapNode configMap) {
1059 final var builder = Builders.mapBuilder().withNodeIdentifier(configMap.name());
1060 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1061 return builder.build();
1062 } else if (configDataNode instanceof MapEntryNode configEntry) {
1063 final var builder = Builders.mapEntryBuilder().withNodeIdentifier(configEntry.name());
1064 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1065 return builder.build();
1066 } else if (configDataNode instanceof ContainerNode configContaienr) {
1067 final var builder = Builders.containerBuilder().withNodeIdentifier(configContaienr.name());
1068 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1069 return builder.build();
1070 } else if (configDataNode instanceof ChoiceNode configChoice) {
1071 final var builder = Builders.choiceBuilder().withNodeIdentifier(configChoice.name());
1072 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1073 return builder.build();
1074 } else if (configDataNode instanceof LeafNode configLeaf) {
1075 // config trumps oper
1077 } else if (configDataNode instanceof UserLeafSetNode) {
1078 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1079 final var builder = Builders.<Object>orderedLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1080 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1081 return builder.build();
1082 } else if (configDataNode instanceof SystemLeafSetNode) {
1083 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1084 final var builder = Builders.<Object>leafSetBuilder().withNodeIdentifier(configLeafSet.name());
1085 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1086 return builder.build();
1087 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1088 // config trumps oper
1090 } else if (configDataNode instanceof UnkeyedListNode configList) {
1091 final var builder = Builders.unkeyedListBuilder().withNodeIdentifier(configList.name());
1092 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1093 return builder.build();
1094 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1095 final var builder = Builders.unkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1096 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1097 return builder.build();
1099 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1104 * Map value from container node to builder.
1106 * @param configData collection of config data nodes
1107 * @param stateData collection of state data nodes
1108 * @param builder builder
1110 private static <T extends NormalizedNode> void mapValueToBuilder(
1111 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1112 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1113 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1114 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1116 // merge config and state data of children with different identifiers
1117 mapDataToBuilder(configMap, stateMap, builder);
1119 // merge config and state data of children with the same identifiers
1120 mergeDataToBuilder(configMap, stateMap, builder);
1124 * Map data with different identifiers to builder. Data with different identifiers can be just added
1125 * as childs to parent node.
1127 * @param configMap map of config data nodes
1128 * @param stateMap map of state data nodes
1129 * @param builder - builder
1131 private static <T extends NormalizedNode> void mapDataToBuilder(
1132 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1133 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1134 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1135 y -> builder.addChild(y.getValue()));
1136 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1137 y -> builder.addChild(y.getValue()));
1141 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1142 * go one level down with {@code prepareData} method.
1144 * @param configMap immutable config data
1145 * @param stateMap immutable state data
1146 * @param builder - builder
1148 @SuppressWarnings("unchecked")
1149 private static <T extends NormalizedNode> void mergeDataToBuilder(
1150 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1151 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1152 // it is enough to process only config data because operational contains the same data
1153 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1154 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1157 public @NonNull RestconfFuture<OperationsGetResult> operationsGET() {
1158 final var modelContext = modelContext();
1159 final var modules = modelContext.getModuleStatements();
1160 if (modules.isEmpty()) {
1161 // No modules, or defensive return empty content
1162 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, ImmutableSetMultimap.of()));
1165 // RPC QNames by their XMLNamespace/Revision. This should be a Table, but Revision can be null, which wrecks us.
1166 final var table = new HashMap<XMLNamespace, Map<Revision, ImmutableSet<QName>>>();
1167 for (var entry : modules.entrySet()) {
1168 final var module = entry.getValue();
1169 final var rpcNames = module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
1170 .map(RpcEffectiveStatement::argument)
1171 .collect(ImmutableSet.toImmutableSet());
1172 if (!rpcNames.isEmpty()) {
1173 final var namespace = entry.getKey();
1174 table.computeIfAbsent(namespace.getNamespace(), ignored -> new HashMap<>())
1175 .put(namespace.getRevision().orElse(null), rpcNames);
1179 // Now pick the latest revision for each namespace
1180 final var rpcs = ImmutableSetMultimap.<QNameModule, QName>builder();
1181 for (var entry : table.entrySet()) {
1182 entry.getValue().entrySet().stream()
1183 .sorted(Comparator.comparing(Entry::getKey, (first, second) -> Revision.compare(second, first)))
1185 .ifPresent(row -> rpcs.putAll(QNameModule.create(entry.getKey(), row.getKey()), row.getValue()));
1187 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, rpcs.build()));
1190 public @NonNull RestconfFuture<OperationsGetResult> operationsGET(final ApiPath apiPath) {
1191 if (apiPath.steps().isEmpty()) {
1192 return operationsGET();
1197 rpc = pathNormalizer.normalizeRpcPath(apiPath);
1198 } catch (RestconfDocumentedException e) {
1199 return RestconfFuture.failed(e);
1202 return RestconfFuture.of(
1203 new OperationsGetResult.Leaf(rpc.inference().getEffectiveModelContext(), rpc.rpc().argument()));
1206 public @NonNull RestconfFuture<OperationsPostResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1207 final OperationInputBody body) {
1208 final OperationPath.Rpc path;
1210 path = pathNormalizer.normalizeRpcPath(apiPath);
1211 } catch (RestconfDocumentedException e) {
1212 return RestconfFuture.failed(e);
1215 final var postPath = new OperationsPostPath(databind, path.inference());
1216 final ContainerNode data;
1218 data = body.toContainerNode(postPath);
1219 } catch (IOException e) {
1220 LOG.debug("Error reading input", e);
1221 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1222 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1225 final var type = path.rpc().argument();
1226 final var local = localRpcs.get(type);
1227 if (local != null) {
1228 return local.invoke(restconfURI, new OperationInput(databind, postPath.operation(), data));
1230 if (rpcService == null) {
1231 LOG.debug("RPC invocation is not available");
1232 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1233 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1236 final var ret = new SettableRestconfFuture<OperationsPostResult>();
1237 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1239 public void onSuccess(final DOMRpcResult response) {
1240 final var errors = response.errors();
1241 if (errors.isEmpty()) {
1242 ret.set(new OperationsPostResult(databind, postPath.operation(), response.value()));
1244 LOG.debug("RPC invocation reported {}", response.errors());
1245 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1246 response.errors()));
1251 public void onFailure(final Throwable cause) {
1252 LOG.debug("RPC invocation failed, cause");
1253 if (cause instanceof RestconfDocumentedException ex) {
1256 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1257 ret.setFailure(new RestconfDocumentedException(cause,
1258 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1261 }, MoreExecutors.directExecutor());
1265 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1266 final Class<? extends SchemaSourceRepresentation> representation) {
1267 final var src = requireNonNull(source);
1268 if (YangTextSchemaSource.class.isAssignableFrom(representation)) {
1269 if (sourceProvider != null) {
1270 final var ret = new SettableRestconfFuture<CharSource>();
1271 Futures.addCallback(sourceProvider.getSource(src), new FutureCallback<YangTextSchemaSource>() {
1273 public void onSuccess(final YangTextSchemaSource result) {
1278 public void onFailure(final Throwable cause) {
1279 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1280 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1281 ErrorTag.OPERATION_FAILED, cause));
1283 }, MoreExecutors.directExecutor());
1286 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1288 if (YinTextSchemaSource.class.isAssignableFrom(representation)) {
1289 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1291 return RestconfFuture.failed(new RestconfDocumentedException(
1292 "Unsupported source representation " + representation.getName()));
1295 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1296 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1297 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1298 // If the source identifies a module, things are easy
1299 final var name = source.name().getLocalName();
1300 final var optRevision = Optional.ofNullable(source.revision());
1301 final var optModule = modelContext.findModule(name, optRevision);
1302 if (optModule.isPresent()) {
1303 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1306 // The source could be a submodule, which we need to hunt down
1307 for (var module : modelContext.getModules()) {
1308 for (var submodule : module.getSubmodules()) {
1309 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1310 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1311 submodule.asEffectiveStatement()));
1316 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1317 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1318 sb.append(" not found");
1319 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1320 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1323 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1324 final DataPostBody body, final Map<String, String> queryParameters) {
1325 if (apiPath.steps().isEmpty()) {
1326 return dataCreatePOST(body.toResource(), queryParameters);
1328 final InstanceReference path;
1330 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1331 } catch (RestconfDocumentedException e) {
1332 return RestconfFuture.failed(e);
1334 if (path instanceof DataPath dataPath) {
1335 try (var resourceBody = body.toResource()) {
1336 return dataCreatePOST(new DataPostPath(databind, dataPath.inference(), dataPath.instance()),
1337 resourceBody, queryParameters);
1340 if (path instanceof OperationPath.Action actionPath) {
1341 try (var inputBody = body.toOperationInput()) {
1342 return dataInvokePOST(actionPath, inputBody);
1345 // Note: this should never happen
1346 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1347 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1350 public @NonNull RestconfFuture<CreateResource> dataCreatePOST(final ChildBody body,
1351 final Map<String, String> queryParameters) {
1352 return dataCreatePOST(new DataPostPath(databind,
1353 SchemaInferenceStack.of(databind.modelContext()).toInference(), YangInstanceIdentifier.of()), body,
1357 private @NonNull RestconfFuture<CreateResource> dataCreatePOST(final DataPostPath path, final ChildBody body,
1358 final Map<String, String> queryParameters) {
1359 final Insert insert;
1361 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1362 } catch (IllegalArgumentException e) {
1363 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1364 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1367 final var payload = body.toPayload(path);
1368 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1371 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1373 for (var arg : args) {
1374 ret = ret.node(arg);
1379 private @NonNull RestconfFuture<InvokeOperation> dataInvokePOST(final OperationPath.Action path,
1380 final OperationInputBody body) {
1381 final var inference = path.inference();
1382 final ContainerNode input;
1384 input = body.toContainerNode(new OperationsPostPath(databind, inference));
1385 } catch (IOException e) {
1386 LOG.debug("Error reading input", e);
1387 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1388 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1391 if (actionService == null) {
1392 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1395 final var future = dataInvokePOST(actionService, path, input);
1396 return future.transform(result -> result.getOutput()
1397 .flatMap(output -> output.isEmpty() ? Optional.empty()
1398 : Optional.of(new InvokeOperation(new NormalizedNodePayload(inference, output))))
1399 .orElse(InvokeOperation.EMPTY));
1403 * Invoke Action via ActionServiceHandler.
1405 * @param input input data
1406 * @param yangIId invocation context
1407 * @param schemaPath schema path of data
1408 * @param actionService action service to invoke action
1409 * @return {@link DOMActionResult}
1411 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1412 final OperationPath.Action path, final @NonNull ContainerNode input) {
1413 final var ret = new SettableRestconfFuture<DOMActionResult>();
1415 Futures.addCallback(actionService.invokeAction(
1416 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1417 new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1418 new FutureCallback<DOMActionResult>() {
1420 public void onSuccess(final DOMActionResult result) {
1421 final var errors = result.getErrors();
1422 LOG.debug("InvokeAction Error Message {}", errors);
1423 if (errors.isEmpty()) {
1426 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1431 public void onFailure(final Throwable cause) {
1432 if (cause instanceof DOMActionException) {
1433 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1434 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1435 } else if (cause instanceof RestconfDocumentedException e) {
1437 } else if (cause instanceof CancellationException) {
1438 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1439 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1441 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1444 }, MoreExecutors.directExecutor());