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.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.List;
27 import java.util.NoSuchElementException;
28 import java.util.Optional;
29 import java.util.concurrent.CancellationException;
30 import java.util.function.BiFunction;
31 import java.util.function.Function;
32 import java.util.stream.Collectors;
33 import org.eclipse.jdt.annotation.NonNull;
34 import org.eclipse.jdt.annotation.NonNullByDefault;
35 import org.eclipse.jdt.annotation.Nullable;
36 import org.opendaylight.mdsal.common.api.CommitInfo;
37 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
38 import org.opendaylight.mdsal.dom.api.DOMActionException;
39 import org.opendaylight.mdsal.dom.api.DOMActionResult;
40 import org.opendaylight.mdsal.dom.api.DOMActionService;
41 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
42 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
43 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
44 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
45 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
46 import org.opendaylight.mdsal.dom.api.DOMRpcService;
47 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
48 import org.opendaylight.mdsal.dom.api.DOMSchemaService.YangTextSourceExtension;
49 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
50 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
51 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
52 import org.opendaylight.restconf.api.ApiPath;
53 import org.opendaylight.restconf.api.FormattableBody;
54 import org.opendaylight.restconf.api.query.ContentParam;
55 import org.opendaylight.restconf.api.query.WithDefaultsParam;
56 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
57 import org.opendaylight.restconf.common.errors.RestconfError;
58 import org.opendaylight.restconf.common.errors.RestconfFuture;
59 import org.opendaylight.restconf.common.errors.SettableRestconfFuture;
60 import org.opendaylight.restconf.common.patch.PatchContext;
61 import org.opendaylight.restconf.nb.rfc8040.Insert;
62 import org.opendaylight.restconf.nb.rfc8040.legacy.ErrorTags;
63 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
64 import org.opendaylight.restconf.nb.rfc8040.legacy.QueryParameters;
65 import org.opendaylight.restconf.server.api.ChildBody;
66 import org.opendaylight.restconf.server.api.ConfigurationMetadata;
67 import org.opendaylight.restconf.server.api.CreateResourceResult;
68 import org.opendaylight.restconf.server.api.DataGetParams;
69 import org.opendaylight.restconf.server.api.DataGetResult;
70 import org.opendaylight.restconf.server.api.DataPatchResult;
71 import org.opendaylight.restconf.server.api.DataPostBody;
72 import org.opendaylight.restconf.server.api.DataPostResult;
73 import org.opendaylight.restconf.server.api.DataPutResult;
74 import org.opendaylight.restconf.server.api.DataYangPatchParams;
75 import org.opendaylight.restconf.server.api.DataYangPatchResult;
76 import org.opendaylight.restconf.server.api.DatabindContext;
77 import org.opendaylight.restconf.server.api.DatabindPath;
78 import org.opendaylight.restconf.server.api.DatabindPath.Action;
79 import org.opendaylight.restconf.server.api.DatabindPath.Data;
80 import org.opendaylight.restconf.server.api.DatabindPath.InstanceReference;
81 import org.opendaylight.restconf.server.api.DatabindPath.OperationPath;
82 import org.opendaylight.restconf.server.api.DatabindPath.Rpc;
83 import org.opendaylight.restconf.server.api.InvokeParams;
84 import org.opendaylight.restconf.server.api.InvokeResult;
85 import org.opendaylight.restconf.server.api.OperationInputBody;
86 import org.opendaylight.restconf.server.api.PatchBody;
87 import org.opendaylight.restconf.server.api.PatchStatusContext;
88 import org.opendaylight.restconf.server.api.PatchStatusEntity;
89 import org.opendaylight.restconf.server.api.ResourceBody;
90 import org.opendaylight.restconf.server.spi.ApiPathCanonizer;
91 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
92 import org.opendaylight.restconf.server.spi.DefaultResourceContext;
93 import org.opendaylight.restconf.server.spi.OperationInput;
94 import org.opendaylight.restconf.server.spi.OperationOutputBody;
95 import org.opendaylight.restconf.server.spi.OperationsResource;
96 import org.opendaylight.restconf.server.spi.RpcImplementation;
97 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
98 import org.opendaylight.yangtools.yang.common.Empty;
99 import org.opendaylight.yangtools.yang.common.ErrorTag;
100 import org.opendaylight.yangtools.yang.common.ErrorType;
101 import org.opendaylight.yangtools.yang.common.QName;
102 import org.opendaylight.yangtools.yang.common.QNameModule;
103 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
104 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
105 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
106 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
107 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
108 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
109 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
110 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
111 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
112 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
113 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
114 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
116 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
117 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
118 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
119 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
121 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
122 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
123 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
124 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
125 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
126 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
127 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
128 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
129 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
130 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
131 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
132 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
133 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
134 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
135 import org.opendaylight.yangtools.yang.model.api.source.SourceRepresentation;
136 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
137 import org.opendaylight.yangtools.yang.model.api.source.YinTextSource;
138 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
139 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
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, Data 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);
177 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
178 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
179 private static final @NonNull DataPatchResult PATCH_EMPTY = new DataPatchResult();
181 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
182 private final @NonNull ApiPathNormalizer pathNormalizer;
183 private final @NonNull DatabindContext databind;
184 private final YangTextSourceExtension sourceProvider;
185 private final DOMMountPointService mountPointService;
186 private final DOMActionService actionService;
187 private final DOMRpcService rpcService;
188 private final OperationsResource operations;
190 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
191 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
192 final YangTextSourceExtension sourceProvider, final @Nullable DOMMountPointService mountPointService) {
193 this.databind = requireNonNull(databind);
194 this.localRpcs = requireNonNull(localRpcs);
195 this.rpcService = rpcService;
196 this.actionService = actionService;
197 this.sourceProvider = sourceProvider;
198 this.mountPointService = mountPointService;
199 pathNormalizer = new ApiPathNormalizer(databind);
200 operations = new OperationsResource(pathNormalizer);
203 public final @NonNull StrategyAndPath resolveStrategyPath(final ApiPath path) {
204 final var andTail = resolveStrategy(path);
205 final var strategy = andTail.strategy();
206 return new StrategyAndPath(strategy, strategy.pathNormalizer.normalizeDataPath(andTail.tail()));
210 * Resolve any and all {@code yang-ext:mount} to the target {@link StrategyAndTail}.
212 * @param path {@link ApiPath} to resolve
213 * @return A strategy and the remaining path
214 * @throws NullPointerException if {@code path} is {@code null}
216 public final @NonNull StrategyAndTail resolveStrategy(final ApiPath path) {
217 var mount = path.indexOf("yang-ext", "mount");
219 return new StrategyAndTail(this, path);
221 if (mountPointService == null) {
222 throw new RestconfDocumentedException("Mount point service is not available",
223 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
225 final var mountPath = path.subPath(0, mount);
226 final var dataPath = pathNormalizer.normalizeDataPath(path.subPath(0, mount));
227 final var mountPoint = mountPointService.getMountPoint(dataPath.instance())
228 .orElseThrow(() -> new RestconfDocumentedException("Mount point '" + mountPath + "' does not exist",
229 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
231 return createStrategy(mountPath, mountPoint).resolveStrategy(path.subPath(mount + 1));
234 private static @NonNull RestconfStrategy createStrategy(final ApiPath mountPath, final DOMMountPoint mountPoint) {
235 final var mountSchemaService = mountPoint.getService(DOMSchemaService.class)
236 .orElseThrow(() -> new RestconfDocumentedException(
237 "Mount point '" + mountPath + "' does not expose DOMSchemaService",
238 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
239 final var mountModelContext = mountSchemaService.getGlobalContext();
240 if (mountModelContext == null) {
241 throw new RestconfDocumentedException("Mount point '" + mountPath + "' does not have any models",
242 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT);
244 final var mountDatabind = DatabindContext.ofModel(mountModelContext);
245 final var mountPointService = mountPoint.getService(DOMMountPointService.class).orElse(null);
246 final var rpcService = mountPoint.getService(DOMRpcService.class).orElse(null);
247 final var actionService = mountPoint.getService(DOMActionService.class).orElse(null);
248 final var sourceProvider = mountPoint.getService(DOMSchemaService.class)
249 .flatMap(schema -> Optional.ofNullable(schema.extension(YangTextSourceExtension.class)))
252 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
253 if (netconfService.isPresent()) {
254 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
255 sourceProvider, mountPointService);
257 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
258 if (dataBroker.isPresent()) {
259 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), rpcService, actionService,
260 sourceProvider, mountPointService);
262 LOG.warn("Mount point {} does not expose a suitable access interface", mountPath);
263 throw new RestconfDocumentedException("Could not find a supported access interface in mount point",
264 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED, mountPoint.getIdentifier());
267 public final @NonNull DatabindContext databind() {
271 public final @NonNull EffectiveModelContext modelContext() {
272 return databind.modelContext();
276 * Lock the entire datastore.
278 * @return A {@link RestconfTransaction}. This transaction needs to be either committed or canceled before doing
281 abstract RestconfTransaction prepareWriteExecution();
284 * Read data from the datastore.
286 * @param store the logical data store which should be modified
287 * @param path the data object path
288 * @return a ListenableFuture containing the result of the read
290 abstract ListenableFuture<Optional<NormalizedNode>> read(LogicalDatastoreType store, YangInstanceIdentifier path);
293 * Check if data already exists in the configuration datastore.
295 * @param path the data object path
296 * @return a ListenableFuture containing the result of the check
298 // FIXME: this method should be hosted in RestconfTransaction
299 // FIXME: this method should only be needed in MdsalRestconfStrategy
300 abstract ListenableFuture<Boolean> exists(YangInstanceIdentifier path);
303 final @NonNull RestconfFuture<DataPatchResult> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
304 final var ret = new SettableRestconfFuture<DataPatchResult>();
305 merge(ret, requireNonNull(path), requireNonNull(data));
309 private void merge(final @NonNull SettableRestconfFuture<DataPatchResult> future,
310 final @NonNull YangInstanceIdentifier path, final @NonNull NormalizedNode data) {
311 final var tx = prepareWriteExecution();
312 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
313 tx.ensureParentsByMerge(path);
314 tx.merge(path, data);
315 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
317 public void onSuccess(final CommitInfo result) {
318 // TODO: extract details once CommitInfo can communicate them
319 future.set(PATCH_EMPTY);
323 public void onFailure(final Throwable cause) {
324 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
326 }, MoreExecutors.directExecutor());
329 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
330 final Map<String, String> queryParameters) {
333 path = pathNormalizer.normalizeDataPath(apiPath);
334 } catch (RestconfDocumentedException e) {
335 return RestconfFuture.failed(e);
340 insert = Insert.ofQueryParameters(databind, queryParameters);
341 } catch (IllegalArgumentException e) {
342 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
343 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
345 final NormalizedNode data;
347 data = body.toNormalizedNode(path);
348 } catch (RestconfDocumentedException e) {
349 return RestconfFuture.failed(e);
351 return putData(path.instance(), data, insert);
355 * Check mount point and prepare variables for put data to DS.
357 * @param path path of data
359 * @param insert {@link Insert}
360 * @return A {@link DataPutResult}
362 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
363 final NormalizedNode data, final @Nullable Insert insert) {
364 final var exists = TransactionUtil.syncAccess(exists(path), path);
366 final ListenableFuture<? extends CommitInfo> commitFuture;
367 if (insert != null) {
368 final var parentPath = path.coerceParent();
369 checkListAndOrderedType(parentPath);
370 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
372 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
375 final var ret = new SettableRestconfFuture<DataPutResult>();
377 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
379 public void onSuccess(final CommitInfo result) {
380 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
384 public void onFailure(final Throwable cause) {
385 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
387 }, MoreExecutors.directExecutor());
392 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
393 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
394 final var tx = prepareWriteExecution();
396 return switch (insert.insert()) {
398 final var readData = tx.readList(parentPath);
399 if (readData == null || readData.isEmpty()) {
400 yield replaceAndCommit(tx, path, data);
402 tx.remove(parentPath);
403 tx.replace(path, data);
404 tx.replace(parentPath, readData);
407 case LAST -> replaceAndCommit(tx, path, data);
409 final var readData = tx.readList(parentPath);
410 if (readData == null || readData.isEmpty()) {
411 yield replaceAndCommit(tx, path, data);
413 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
417 final var readData = tx.readList(parentPath);
418 if (readData == null || readData.isEmpty()) {
419 yield replaceAndCommit(tx, path, data);
421 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
427 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
428 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
429 final boolean before) {
430 tx.remove(path.getParent());
432 int lastItemPosition = 0;
433 for (var nodeChild : readList.body()) {
434 if (nodeChild.name().equals(pointArg)) {
443 int lastInsertedPosition = 0;
444 final var emptySubtree = fromInstanceId(modelContext(), path.getParent());
445 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
446 for (var nodeChild : readList.body()) {
447 if (lastInsertedPosition == lastItemPosition) {
448 tx.replace(path, data);
450 final var childPath = path.coerceParent().node(nodeChild.name());
451 tx.replace(childPath, nodeChild);
452 lastInsertedPosition++;
455 // In case we are inserting after last element
457 if (lastInsertedPosition == lastItemPosition) {
458 tx.replace(path, data);
463 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
464 final YangInstanceIdentifier path, final NormalizedNode data) {
465 tx.replace(path, data);
469 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
470 // FIXME: we have this available in InstanceIdentifierContext
471 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
473 final String message;
474 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
475 if (listSchema.isUserOrdered()) {
478 message = "Insert parameter can be used only with ordered-by user list.";
479 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
480 if (leafListSchema.isUserOrdered()) {
481 return leafListSchema;
483 message = "Insert parameter can be used only with ordered-by user leaf-list.";
485 message = "Insert parameter can be used only with list or leaf-list";
487 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
491 * Check mount point and prepare variables for post data.
495 * @param insert {@link Insert}
496 * @return A {@link RestconfFuture}
498 public final @NonNull RestconfFuture<CreateResourceResult> postData(final YangInstanceIdentifier path,
499 final NormalizedNode data, final @Nullable Insert insert) {
500 final ListenableFuture<? extends CommitInfo> future;
501 if (insert != null) {
502 checkListAndOrderedType(path);
503 future = insertAndCommitPost(path, data, insert);
505 future = createAndCommit(prepareWriteExecution(), path, data);
508 final var ret = new SettableRestconfFuture<CreateResourceResult>();
509 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
511 public void onSuccess(final CommitInfo result) {
512 ret.set(new CreateResourceResult(new ApiPathCanonizer(databind).dataToApiPath(
513 data instanceof MapNode mapData && !mapData.isEmpty()
514 ? path.node(mapData.body().iterator().next().name()) : path)));
518 public void onFailure(final Throwable cause) {
519 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
522 }, MoreExecutors.directExecutor());
526 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
527 final NormalizedNode data, final @NonNull Insert insert) {
528 final var tx = prepareWriteExecution();
530 return switch (insert.insert()) {
532 final var readData = tx.readList(path);
533 if (readData == null || readData.isEmpty()) {
534 tx.replace(path, data);
536 checkListDataDoesNotExist(path, data);
538 tx.replace(path, data);
539 tx.replace(path, readData);
543 case LAST -> createAndCommit(tx, path, data);
545 final var readData = tx.readList(path);
546 if (readData == null || readData.isEmpty()) {
547 tx.replace(path, data);
549 checkListDataDoesNotExist(path, data);
550 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
555 final var readData = tx.readList(path);
556 if (readData == null || readData.isEmpty()) {
557 tx.replace(path, data);
559 checkListDataDoesNotExist(path, data);
560 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
568 * Merge data into the configuration datastore, as outlined in
569 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
571 * @param apiPath Path to merge
572 * @param body Data to merge
573 * @return A {@link RestconfFuture}
574 * @throws NullPointerException if any argument is {@code null}
576 public final @NonNull RestconfFuture<DataPatchResult> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
579 path = pathNormalizer.normalizeDataPath(apiPath);
580 } catch (RestconfDocumentedException e) {
581 return RestconfFuture.failed(e);
584 final NormalizedNode data;
586 data = body.toNormalizedNode(path);
587 } catch (RestconfDocumentedException e) {
588 return RestconfFuture.failed(e);
591 return merge(path.instance(), data);
594 public final @NonNull RestconfFuture<DataYangPatchResult> dataPATCH(final ApiPath apiPath,
595 final Map<String, String> queryParameters, final PatchBody body) {
596 final DataYangPatchParams params;
598 params = DataYangPatchParams.ofQueryParameters(queryParameters);
599 } catch (IllegalArgumentException e) {
600 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
601 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
606 path = pathNormalizer.normalizeDataPath(apiPath);
607 } catch (RestconfDocumentedException e) {
608 return RestconfFuture.failed(e);
611 final PatchContext patch;
613 patch = body.toPatchContext(new DefaultResourceContext(path));
614 } catch (IOException e) {
615 LOG.debug("Error parsing YANG Patch input", e);
616 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
617 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
619 return patchData(params, patch);
623 * Process edit operations of one {@link PatchContext}.
625 * @param patch Patch context to be processed
626 * @return {@link PatchStatusContext}
629 public final @NonNull RestconfFuture<DataYangPatchResult> patchData(final DataYangPatchParams params,
630 final PatchContext patch) {
631 final var editCollection = new ArrayList<PatchStatusEntity>();
632 final var tx = prepareWriteExecution();
634 boolean noError = true;
635 for (var patchEntity : patch.entities()) {
637 final var targetNode = patchEntity.getTargetNode();
638 final var editId = patchEntity.getEditId();
640 switch (patchEntity.getOperation()) {
643 tx.create(targetNode, patchEntity.getNode());
644 editCollection.add(new PatchStatusEntity(editId, true, null));
645 } catch (RestconfDocumentedException e) {
646 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
652 tx.delete(targetNode);
653 editCollection.add(new PatchStatusEntity(editId, true, null));
654 } catch (RestconfDocumentedException e) {
655 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
661 tx.ensureParentsByMerge(targetNode);
662 tx.merge(targetNode, patchEntity.getNode());
663 editCollection.add(new PatchStatusEntity(editId, true, null));
664 } catch (RestconfDocumentedException e) {
665 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
671 tx.replace(targetNode, patchEntity.getNode());
672 editCollection.add(new PatchStatusEntity(editId, true, null));
673 } catch (RestconfDocumentedException e) {
674 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
680 tx.remove(targetNode);
681 editCollection.add(new PatchStatusEntity(editId, true, null));
682 } catch (RestconfDocumentedException e) {
683 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
688 editCollection.add(new PatchStatusEntity(editId, false, List.of(
689 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
690 "Not supported Yang Patch operation"))));
699 final var ret = new SettableRestconfFuture<DataYangPatchResult>();
703 ret.set(new DataYangPatchResult(params,
704 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), false, null)));
708 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
710 public void onSuccess(final CommitInfo result) {
711 ret.set(new DataYangPatchResult(params,
712 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), true, null)));
716 public void onFailure(final Throwable cause) {
717 // if errors occurred during transaction commit then patch failed and global errors are reported
718 ret.set(new DataYangPatchResult(params,
719 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), false,
720 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors())));
722 }, MoreExecutors.directExecutor());
727 private static void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
728 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
729 final boolean before) {
732 int lastItemPosition = 0;
733 for (var nodeChild : readList.body()) {
734 if (nodeChild.name().equals(pointArg)) {
743 int lastInsertedPosition = 0;
744 for (var nodeChild : readList.body()) {
745 if (lastInsertedPosition == lastItemPosition) {
746 tx.replace(path, data);
748 tx.replace(path.node(nodeChild.name()), nodeChild);
749 lastInsertedPosition++;
752 // In case we are inserting after last element
754 if (lastInsertedPosition == lastItemPosition) {
755 tx.replace(path, data);
760 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
761 final YangInstanceIdentifier path, final NormalizedNode data) {
763 tx.create(path, data);
764 } catch (RestconfDocumentedException e) {
765 // close transaction if any and pass exception further
774 * Check if child items do NOT already exists in List at specified {@code path}.
776 * @param data Data to be checked
777 * @param path Path to be checked
778 * @throws RestconfDocumentedException if data already exists.
780 private void checkListDataDoesNotExist(final YangInstanceIdentifier path, final NormalizedNode data) {
781 if (data instanceof NormalizedNodeContainer<?> dataNode) {
782 for (final var node : dataNode.body()) {
783 checkItemDoesNotExists(exists(path.node(node.name())), path.node(node.name()));
786 throw new RestconfDocumentedException("Unexpected node type: " + data.getClass().getName());
791 * Check if items do NOT already exists at specified {@code path}.
793 * @param existsFuture if checked data exists
794 * @param path Path to be checked
795 * @throws RestconfDocumentedException if data already exists.
797 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
798 final YangInstanceIdentifier path) {
799 if (TransactionUtil.syncAccess(existsFuture, path)) {
800 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
801 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
807 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
808 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
810 * @param apiPath Path to delete
811 * @return A {@link RestconfFuture}
812 * @throws NullPointerException if {@code apiPath} is {@code null}
814 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
815 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
818 path = pathNormalizer.normalizeDataPath(apiPath);
819 } catch (RestconfDocumentedException e) {
820 return RestconfFuture.failed(e);
823 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
824 final var ret = new SettableRestconfFuture<Empty>();
825 delete(ret, path.instance());
829 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
831 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath,
832 final DataGetParams params) {
835 path = pathNormalizer.normalizeDataPath(apiPath);
836 } catch (RestconfDocumentedException e) {
837 return RestconfFuture.failed(e);
839 return dataGET(path, params);
842 abstract @NonNull RestconfFuture<DataGetResult> dataGET(Data path, DataGetParams params);
844 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
845 final QueryParameters queryParams, final @Nullable NormalizedNode node,
846 final @Nullable ConfigurationMetadata metadata) {
848 return RestconfFuture.failed(new RestconfDocumentedException(
849 "Request could not be completed because the relevant data model content does not exist",
850 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
853 final var payload = new NormalizedNodePayload(inference, node, queryParams);
854 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
855 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
859 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
860 * inside of object {@link RestconfStrategy} provided as a parameter.
862 * @param content type of data to read (config, state, all)
863 * @param path the path to read
864 * @param defaultsMode value of with-defaults parameter
865 * @return {@link NormalizedNode}
867 // FIXME: NETCONF-1155: this method should asynchronous
869 final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
870 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
871 return switch (content) {
873 // PREPARE STATE DATA NODE
874 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
875 // PREPARE CONFIG DATA NODE
876 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
878 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
879 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
882 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
883 yield defaultsMode == null ? read
884 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
886 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
890 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
891 final YangInstanceIdentifier path) {
892 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
895 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
896 final WithDefaultsMode defaultsMode) {
897 final boolean trim = switch (defaultsMode) {
899 case Explicit -> false;
900 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
901 "Unsupported with-defaults value " + defaultsMode.getName());
904 // FIXME: we have this readily available in InstanceIdentifierContext
905 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
906 if (readData instanceof ContainerNode container) {
907 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
908 buildCont(builder, container.body(), ctxNode, trim);
909 return builder.build();
910 } else if (readData instanceof MapEntryNode mapEntry) {
911 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
912 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
915 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(mapEntry.name());
916 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
917 return builder.build();
919 throw new IllegalStateException("Unhandled data contract " + readData.contract());
923 private static void buildMapEntryBuilder(
924 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
925 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
926 final boolean trim, final List<QName> keys) {
927 for (var child : children) {
928 final var childCtx = getChildContext(ctxNode, child);
930 if (child instanceof ContainerNode container) {
931 appendContainer(builder, container, childCtx, trim);
932 } else if (child instanceof MapNode map) {
933 appendMap(builder, map, childCtx, trim);
934 } else if (child instanceof LeafNode<?> leaf) {
935 appendLeaf(builder, leaf, childCtx, trim, keys);
937 // FIXME: we should never hit this, throw an ISE if this ever happens
938 LOG.debug("Ignoring unhandled child contract {}", child.contract());
943 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
944 final DataSchemaContext ctxNode, final boolean trim) {
945 final var childBuilder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
946 buildCont(childBuilder, container.body(), ctxNode, trim);
947 builder.withChild(childBuilder.build());
950 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
951 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
952 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
953 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
956 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
957 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
959 // This is a combined check for when we need to emit the leaf.
961 // We always have to emit key leaf values
962 keys.contains(leafSchema.getQName())
963 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
965 // When data is retrieved with a <with-defaults> parameter equal to
966 // 'trim', data nodes MUST NOT be reported if they contain the schema
967 // default value. Non-configuration data nodes containing the schema
968 // default value MUST NOT be reported.
970 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
971 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
972 // grasp what we are doing here... emit only if it matches default ???!!!
973 // FIXME: The WithDefaultsParam.EXPLICIT says:
975 // Data nodes set to the YANG default by the client are reported.
977 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
979 // If the "with-defaults" parameter is set to "explicit", then the
980 // server MUST adhere to the default-reporting behavior defined in
981 // Section 3.3 of [RFC6243].
983 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
985 // When data is retrieved with a <with-defaults> parameter equal to
986 // 'explicit', a data node that was set by a client to its schema
987 // default value MUST be reported. A conceptual data node that would be
988 // set by the server to the schema default value MUST NOT be reported.
989 // Non-configuration data nodes containing the schema default value MUST
992 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
993 // This seems to disregard the 'trim = true' case semantics (see above).
994 // Combining the above, though, these checks are missing the 'non-config' check, which would
995 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
996 // Without that input, this really should be covered by the previous case.
997 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
998 builder.withChild(leaf);
1002 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
1003 final DataSchemaContext childCtx, final boolean trim) {
1004 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
1005 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
1008 final var childBuilder = switch (map.ordering()) {
1009 case SYSTEM -> ImmutableNodes.newSystemMapBuilder();
1010 case USER -> ImmutableNodes.newUserMapBuilder();
1012 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
1013 listSchema.getKeyDefinition());
1014 builder.withChild(childBuilder.build());
1017 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
1018 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
1019 final List<@NonNull QName> keys) {
1020 for (var entry : entries) {
1021 final var childCtx = getChildContext(ctxNode, entry);
1022 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(entry.name());
1023 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
1024 builder.withChild(mapEntryBuilder.build());
1028 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
1029 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
1030 for (var child : children) {
1031 final var childCtx = getChildContext(ctxNode, child);
1032 if (child instanceof ContainerNode container) {
1033 appendContainer(builder, container, childCtx, trim);
1034 } else if (child instanceof MapNode map) {
1035 appendMap(builder, map, childCtx, trim);
1036 } else if (child instanceof LeafNode<?> leaf) {
1037 appendLeaf(builder, leaf, childCtx, trim, List.of());
1042 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1043 final NormalizedNode child) {
1044 final var childId = child.name();
1045 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1047 if (childCtx == null) {
1048 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1053 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1054 final NormalizedNode configDataNode) {
1055 if (stateDataNode == null) {
1056 // No state, return config
1057 return configDataNode;
1059 if (configDataNode == null) {
1060 // No config, return state
1061 return stateDataNode;
1063 // merge config and state
1064 return mergeStateAndConfigData(stateDataNode, configDataNode);
1068 * Merge state and config data into a single NormalizedNode.
1070 * @param stateDataNode data node of state data
1071 * @param configDataNode data node of config data
1072 * @return {@link NormalizedNode}
1074 private static @NonNull NormalizedNode mergeStateAndConfigData(
1075 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1076 validateNodeMerge(stateDataNode, configDataNode);
1077 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1078 if (configDataNode instanceof RpcDefinition) {
1079 return prepareRpcData(configDataNode, stateDataNode);
1081 return prepareData(configDataNode, stateDataNode);
1086 * Validates whether the two NormalizedNodes can be merged.
1088 * @param stateDataNode data node of state data
1089 * @param configDataNode data node of config data
1091 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1092 final @NonNull NormalizedNode configDataNode) {
1093 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1094 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1095 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1096 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1101 * Prepare and map data for rpc.
1103 * @param configDataNode data node of config data
1104 * @param stateDataNode data node of state data
1105 * @return {@link NormalizedNode}
1107 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1108 final @NonNull NormalizedNode stateDataNode) {
1109 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder()
1110 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1113 mapRpcDataNode(configDataNode, mapEntryBuilder);
1115 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1117 return ImmutableNodes.newSystemMapBuilder()
1118 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1119 .addChild(mapEntryBuilder.build())
1124 * Map node to map entry builder.
1126 * @param dataNode data node
1127 * @param mapEntryBuilder builder for mapping data
1129 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1130 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1131 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1135 * Prepare and map all data from DS.
1137 * @param configDataNode data node of config data
1138 * @param stateDataNode data node of state data
1139 * @return {@link NormalizedNode}
1141 @SuppressWarnings("unchecked")
1142 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1143 final @NonNull NormalizedNode stateDataNode) {
1144 if (configDataNode instanceof UserMapNode configMap) {
1145 final var builder = ImmutableNodes.newUserMapBuilder().withNodeIdentifier(configMap.name());
1146 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1147 return builder.build();
1148 } else if (configDataNode instanceof SystemMapNode configMap) {
1149 final var builder = ImmutableNodes.newSystemMapBuilder().withNodeIdentifier(configMap.name());
1150 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1151 return builder.build();
1152 } else if (configDataNode instanceof MapEntryNode configEntry) {
1153 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(configEntry.name());
1154 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1155 return builder.build();
1156 } else if (configDataNode instanceof ContainerNode configContaienr) {
1157 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(configContaienr.name());
1158 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1159 return builder.build();
1160 } else if (configDataNode instanceof ChoiceNode configChoice) {
1161 final var builder = ImmutableNodes.newChoiceBuilder().withNodeIdentifier(configChoice.name());
1162 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1163 return builder.build();
1164 } else if (configDataNode instanceof LeafNode configLeaf) {
1165 // config trumps oper
1167 } else if (configDataNode instanceof UserLeafSetNode) {
1168 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1169 final var builder = ImmutableNodes.<Object>newUserLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1170 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1171 return builder.build();
1172 } else if (configDataNode instanceof SystemLeafSetNode) {
1173 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1174 final var builder = ImmutableNodes.<Object>newSystemLeafSetBuilder()
1175 .withNodeIdentifier(configLeafSet.name());
1176 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1177 return builder.build();
1178 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1179 // config trumps oper
1181 } else if (configDataNode instanceof UnkeyedListNode configList) {
1182 final var builder = ImmutableNodes.newUnkeyedListBuilder().withNodeIdentifier(configList.name());
1183 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1184 return builder.build();
1185 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1186 final var builder = ImmutableNodes.newUnkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1187 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1188 return builder.build();
1190 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1195 * Map value from container node to builder.
1197 * @param configData collection of config data nodes
1198 * @param stateData collection of state data nodes
1199 * @param builder builder
1201 private static <T extends NormalizedNode> void mapValueToBuilder(
1202 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1203 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1204 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1205 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1207 // merge config and state data of children with different identifiers
1208 mapDataToBuilder(configMap, stateMap, builder);
1210 // merge config and state data of children with the same identifiers
1211 mergeDataToBuilder(configMap, stateMap, builder);
1215 * Map data with different identifiers to builder. Data with different identifiers can be just added
1216 * as childs to parent node.
1218 * @param configMap map of config data nodes
1219 * @param stateMap map of state data nodes
1220 * @param builder - builder
1222 private static <T extends NormalizedNode> void mapDataToBuilder(
1223 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1224 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1225 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1226 y -> builder.addChild(y.getValue()));
1227 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1228 y -> builder.addChild(y.getValue()));
1232 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1233 * go one level down with {@code prepareData} method.
1235 * @param configMap immutable config data
1236 * @param stateMap immutable state data
1237 * @param builder - builder
1239 @SuppressWarnings("unchecked")
1240 private static <T extends NormalizedNode> void mergeDataToBuilder(
1241 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1242 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1243 // it is enough to process only config data because operational contains the same data
1244 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1245 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1248 public @NonNull RestconfFuture<FormattableBody> operationsGET() {
1249 return operations.httpGET();
1252 public @NonNull RestconfFuture<FormattableBody> operationsGET(final ApiPath apiPath) {
1253 return operations.httpGET(apiPath);
1256 public @NonNull RestconfFuture<InvokeResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1257 final Map<String, String> queryParameters, final OperationInputBody body) {
1260 path = pathNormalizer.normalizeRpcPath(apiPath);
1261 } catch (RestconfDocumentedException e) {
1262 return RestconfFuture.failed(e);
1265 final InvokeParams params;
1267 params = InvokeParams.ofQueryParameters(queryParameters);
1268 } catch (IllegalArgumentException e) {
1269 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1270 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1273 final ContainerNode data;
1275 data = body.toContainerNode(path);
1276 } catch (IOException e) {
1277 LOG.debug("Error reading input", e);
1278 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1279 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1282 final var type = path.rpc().argument();
1283 final var local = localRpcs.get(type);
1284 if (local != null) {
1285 return local.invoke(restconfURI, new OperationInput(path, data))
1286 .transform(output -> outputToInvokeResult(path, params, output));
1288 if (rpcService == null) {
1289 LOG.debug("RPC invocation is not available");
1290 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1291 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1294 final var ret = new SettableRestconfFuture<InvokeResult>();
1295 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1297 public void onSuccess(final DOMRpcResult response) {
1298 final var errors = response.errors();
1299 if (errors.isEmpty()) {
1300 ret.set(outputToInvokeResult(path, params, response.value()));
1302 LOG.debug("RPC invocation reported {}", response.errors());
1303 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1304 response.errors()));
1309 public void onFailure(final Throwable cause) {
1310 LOG.debug("RPC invocation failed, cause");
1311 if (cause instanceof RestconfDocumentedException ex) {
1314 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1315 ret.setFailure(new RestconfDocumentedException(cause,
1316 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1319 }, MoreExecutors.directExecutor());
1323 private static @NonNull InvokeResult outputToInvokeResult(final @NonNull OperationPath path,
1324 final @NonNull InvokeParams params, final @Nullable ContainerNode value) {
1325 return value == null || value.isEmpty() ? InvokeResult.EMPTY
1326 : new InvokeResult(new OperationOutputBody(params, path, value));
1329 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1330 final Class<? extends SourceRepresentation> representation) {
1331 final var src = requireNonNull(source);
1332 if (YangTextSource.class.isAssignableFrom(representation)) {
1333 if (sourceProvider != null) {
1334 final var ret = new SettableRestconfFuture<CharSource>();
1335 Futures.addCallback(sourceProvider.getYangTexttSource(src), new FutureCallback<>() {
1337 public void onSuccess(final YangTextSource result) {
1342 public void onFailure(final Throwable cause) {
1343 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1344 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1345 ErrorTag.OPERATION_FAILED, cause));
1347 }, MoreExecutors.directExecutor());
1350 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1352 if (YinTextSource.class.isAssignableFrom(representation)) {
1353 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1355 return RestconfFuture.failed(new RestconfDocumentedException(
1356 "Unsupported source representation " + representation.getName()));
1359 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1360 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1361 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1362 // If the source identifies a module, things are easy
1363 final var name = source.name().getLocalName();
1364 final var optRevision = Optional.ofNullable(source.revision());
1365 final var optModule = modelContext.findModule(name, optRevision);
1366 if (optModule.isPresent()) {
1367 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1370 // The source could be a submodule, which we need to hunt down
1371 for (var module : modelContext.getModules()) {
1372 for (var submodule : module.getSubmodules()) {
1373 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1374 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1375 submodule.asEffectiveStatement()));
1380 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1381 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1382 sb.append(" not found");
1383 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1384 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1387 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1388 final DataPostBody body, final Map<String, String> queryParameters) {
1389 if (apiPath.steps().isEmpty()) {
1390 return dataCreatePOST(body.toResource(), queryParameters);
1392 final InstanceReference path;
1394 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1395 } catch (RestconfDocumentedException e) {
1396 return RestconfFuture.failed(e);
1398 if (path instanceof Data dataPath) {
1399 try (var resourceBody = body.toResource()) {
1400 return dataCreatePOST(dataPath, resourceBody, queryParameters);
1403 if (path instanceof Action actionPath) {
1404 try (var inputBody = body.toOperationInput()) {
1405 return dataInvokePOST(actionPath, inputBody, queryParameters);
1408 // Note: this should never happen
1409 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1410 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1413 public @NonNull RestconfFuture<CreateResourceResult> dataCreatePOST(final ChildBody body,
1414 final Map<String, String> queryParameters) {
1415 return dataCreatePOST(new DatabindPath.Data(databind), body, queryParameters);
1418 private @NonNull RestconfFuture<CreateResourceResult> dataCreatePOST(final DatabindPath.Data path,
1419 final ChildBody body, final Map<String, String> queryParameters) {
1420 final Insert insert;
1422 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1423 } catch (IllegalArgumentException e) {
1424 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1425 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1428 final var payload = body.toPayload(path);
1429 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1432 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1434 for (var arg : args) {
1435 ret = ret.node(arg);
1440 private @NonNull RestconfFuture<InvokeResult> dataInvokePOST(final @NonNull Action path,
1441 final @NonNull OperationInputBody body, final Map<String, String> queryParameters) {
1442 final InvokeParams params;
1444 params = InvokeParams.ofQueryParameters(queryParameters);
1445 } catch (IllegalArgumentException e) {
1446 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1447 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1450 final ContainerNode input;
1452 input = body.toContainerNode(path);
1453 } catch (IOException e) {
1454 LOG.debug("Error reading input", e);
1455 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1456 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1459 if (actionService == null) {
1460 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1463 return dataInvokePOST(actionService, path, input)
1464 .transform(result -> outputToInvokeResult(path, params, result.getOutput().orElse(null)));
1468 * Invoke Action via ActionServiceHandler.
1470 * @param input input data
1471 * @param yangIId invocation context
1472 * @param schemaPath schema path of data
1473 * @param actionService action service to invoke action
1474 * @return {@link DOMActionResult}
1476 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1477 final Action path, final @NonNull ContainerNode input) {
1478 final var ret = new SettableRestconfFuture<DOMActionResult>();
1480 Futures.addCallback(actionService.invokeAction(
1481 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1482 DOMDataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1483 new FutureCallback<DOMActionResult>() {
1485 public void onSuccess(final DOMActionResult result) {
1486 final var errors = result.getErrors();
1487 LOG.debug("InvokeAction Error Message {}", errors);
1488 if (errors.isEmpty()) {
1491 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1496 public void onFailure(final Throwable cause) {
1497 if (cause instanceof DOMActionException) {
1498 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1499 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1500 } else if (cause instanceof RestconfDocumentedException e) {
1502 } else if (cause instanceof CancellationException) {
1503 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1504 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1506 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1509 }, MoreExecutors.directExecutor());