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.WriterParameters;
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.QueryParams;
90 import org.opendaylight.restconf.server.api.ResourceBody;
91 import org.opendaylight.restconf.server.spi.ApiPathCanonizer;
92 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
93 import org.opendaylight.restconf.server.spi.DefaultResourceContext;
94 import org.opendaylight.restconf.server.spi.OperationInput;
95 import org.opendaylight.restconf.server.spi.OperationOutputBody;
96 import org.opendaylight.restconf.server.spi.OperationsResource;
97 import org.opendaylight.restconf.server.spi.RpcImplementation;
98 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
99 import org.opendaylight.yangtools.yang.common.Empty;
100 import org.opendaylight.yangtools.yang.common.ErrorTag;
101 import org.opendaylight.yangtools.yang.common.ErrorType;
102 import org.opendaylight.yangtools.yang.common.QName;
103 import org.opendaylight.yangtools.yang.common.QNameModule;
104 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
105 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
106 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
107 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
108 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
109 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
110 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
111 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
112 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
113 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
114 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
116 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
117 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
118 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
119 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
121 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
122 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
123 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
124 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
125 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
126 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
127 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
128 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
129 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
130 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
131 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
132 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
133 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
134 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
135 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
136 import org.opendaylight.yangtools.yang.model.api.source.SourceRepresentation;
137 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
138 import org.opendaylight.yangtools.yang.model.api.source.YinTextSource;
139 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
140 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
141 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
142 import org.slf4j.Logger;
143 import org.slf4j.LoggerFactory;
146 * Baseline execution strategy for various RESTCONF operations.
148 * @see NetconfRestconfStrategy
149 * @see MdsalRestconfStrategy
151 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
152 // operations. This should be handled through proper allocation indirection.
153 public abstract class RestconfStrategy {
155 public record StrategyAndPath(RestconfStrategy strategy, Data path) {
156 public StrategyAndPath {
157 requireNonNull(strategy);
158 requireNonNull(path);
163 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
164 * points with possible nesting.
166 * @param strategy the strategy to use
167 * @param tail the {@link ApiPath} tail to use with the strategy
170 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
171 public StrategyAndTail {
172 requireNonNull(strategy);
173 requireNonNull(tail);
177 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
178 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
179 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
180 private static final @NonNull DataPatchResult PATCH_EMPTY = new DataPatchResult();
182 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
183 private final @NonNull ApiPathNormalizer pathNormalizer;
184 private final @NonNull DatabindContext databind;
185 private final YangTextSourceExtension sourceProvider;
186 private final DOMMountPointService mountPointService;
187 private final DOMActionService actionService;
188 private final DOMRpcService rpcService;
189 private final OperationsResource operations;
191 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
192 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
193 final @Nullable YangTextSourceExtension sourceProvider,
194 final @Nullable DOMMountPointService mountPointService) {
195 this.databind = requireNonNull(databind);
196 this.localRpcs = requireNonNull(localRpcs);
197 this.rpcService = rpcService;
198 this.actionService = actionService;
199 this.sourceProvider = sourceProvider;
200 this.mountPointService = mountPointService;
201 pathNormalizer = new ApiPathNormalizer(databind);
202 operations = new OperationsResource(pathNormalizer);
205 public final @NonNull StrategyAndPath resolveStrategyPath(final ApiPath path) {
206 final var andTail = resolveStrategy(path);
207 final var strategy = andTail.strategy();
208 return new StrategyAndPath(strategy, strategy.pathNormalizer.normalizeDataPath(andTail.tail()));
212 * Resolve any and all {@code yang-ext:mount} to the target {@link StrategyAndTail}.
214 * @param path {@link ApiPath} to resolve
215 * @return A strategy and the remaining path
216 * @throws NullPointerException if {@code path} is {@code null}
218 public final @NonNull StrategyAndTail resolveStrategy(final ApiPath path) {
219 var mount = path.indexOf("yang-ext", "mount");
221 return new StrategyAndTail(this, path);
223 if (mountPointService == null) {
224 throw new RestconfDocumentedException("Mount point service is not available",
225 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
227 final var mountPath = path.subPath(0, mount);
228 final var dataPath = pathNormalizer.normalizeDataPath(path.subPath(0, mount));
229 final var mountPoint = mountPointService.getMountPoint(dataPath.instance())
230 .orElseThrow(() -> new RestconfDocumentedException("Mount point '" + mountPath + "' does not exist",
231 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
233 return createStrategy(mountPath, mountPoint).resolveStrategy(path.subPath(mount + 1));
236 private static @NonNull RestconfStrategy createStrategy(final ApiPath mountPath, final DOMMountPoint mountPoint) {
237 final var mountSchemaService = mountPoint.getService(DOMSchemaService.class)
238 .orElseThrow(() -> new RestconfDocumentedException(
239 "Mount point '" + mountPath + "' does not expose DOMSchemaService",
240 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
241 final var mountModelContext = mountSchemaService.getGlobalContext();
242 if (mountModelContext == null) {
243 throw new RestconfDocumentedException("Mount point '" + mountPath + "' does not have any models",
244 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT);
246 final var mountDatabind = DatabindContext.ofModel(mountModelContext);
247 final var mountPointService = mountPoint.getService(DOMMountPointService.class).orElse(null);
248 final var rpcService = mountPoint.getService(DOMRpcService.class).orElse(null);
249 final var actionService = mountPoint.getService(DOMActionService.class).orElse(null);
250 final var sourceProvider = mountPoint.getService(DOMSchemaService.class)
251 .flatMap(schema -> Optional.ofNullable(schema.extension(YangTextSourceExtension.class)))
254 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
255 if (netconfService.isPresent()) {
256 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
257 sourceProvider, mountPointService);
259 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
260 if (dataBroker.isPresent()) {
261 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), ImmutableMap.of(), rpcService,
262 actionService, sourceProvider, mountPointService);
264 LOG.warn("Mount point {} does not expose a suitable access interface", mountPath);
265 throw new RestconfDocumentedException("Could not find a supported access interface in mount point",
266 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED, mountPoint.getIdentifier());
269 public final @NonNull DatabindContext databind() {
273 public final @NonNull EffectiveModelContext modelContext() {
274 return databind.modelContext();
278 * Lock the entire datastore.
280 * @return A {@link RestconfTransaction}. This transaction needs to be either committed or canceled before doing
283 abstract RestconfTransaction prepareWriteExecution();
286 * Read data from the datastore.
288 * @param store the logical data store which should be modified
289 * @param path the data object path
290 * @return a ListenableFuture containing the result of the read
292 abstract ListenableFuture<Optional<NormalizedNode>> read(LogicalDatastoreType store, YangInstanceIdentifier path);
295 * Check if data already exists in the configuration datastore.
297 * @param path the data object path
298 * @return a ListenableFuture containing the result of the check
300 // FIXME: this method should be hosted in RestconfTransaction
301 // FIXME: this method should only be needed in MdsalRestconfStrategy
302 abstract ListenableFuture<Boolean> exists(YangInstanceIdentifier path);
305 final @NonNull RestconfFuture<DataPatchResult> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
306 final var ret = new SettableRestconfFuture<DataPatchResult>();
307 merge(ret, requireNonNull(path), requireNonNull(data));
311 private void merge(final @NonNull SettableRestconfFuture<DataPatchResult> future,
312 final @NonNull YangInstanceIdentifier path, final @NonNull NormalizedNode data) {
313 final var tx = prepareWriteExecution();
314 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
315 tx.ensureParentsByMerge(path);
316 tx.merge(path, data);
317 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
319 public void onSuccess(final CommitInfo result) {
320 // TODO: extract details once CommitInfo can communicate them
321 future.set(PATCH_EMPTY);
325 public void onFailure(final Throwable cause) {
326 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
328 }, MoreExecutors.directExecutor());
331 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final QueryParams params,
332 final ResourceBody body) {
335 path = pathNormalizer.normalizeDataPath(apiPath);
336 } catch (RestconfDocumentedException e) {
337 return RestconfFuture.failed(e);
342 insert = Insert.of(databind, params);
343 } catch (IllegalArgumentException e) {
344 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
345 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
347 final NormalizedNode data;
349 data = body.toNormalizedNode(path);
350 } catch (RestconfDocumentedException e) {
351 return RestconfFuture.failed(e);
353 return putData(path.instance(), data, insert);
357 * Check mount point and prepare variables for put data to DS.
359 * @param path path of data
361 * @param insert {@link Insert}
362 * @return A {@link DataPutResult}
364 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
365 final NormalizedNode data, final @Nullable Insert insert) {
366 final var exists = TransactionUtil.syncAccess(exists(path), path);
368 final ListenableFuture<? extends CommitInfo> commitFuture;
369 if (insert != null) {
370 final var parentPath = path.coerceParent();
371 checkListAndOrderedType(parentPath);
372 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
374 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
377 final var ret = new SettableRestconfFuture<DataPutResult>();
379 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
381 public void onSuccess(final CommitInfo result) {
382 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
386 public void onFailure(final Throwable cause) {
387 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
389 }, MoreExecutors.directExecutor());
394 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
395 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
396 final var tx = prepareWriteExecution();
398 return switch (insert.insert()) {
400 final var readData = tx.readList(parentPath);
401 if (readData == null || readData.isEmpty()) {
402 yield replaceAndCommit(tx, path, data);
404 tx.remove(parentPath);
405 tx.replace(path, data);
406 tx.replace(parentPath, readData);
409 case LAST -> replaceAndCommit(tx, path, data);
411 final var readData = tx.readList(parentPath);
412 if (readData == null || readData.isEmpty()) {
413 yield replaceAndCommit(tx, path, data);
415 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
419 final var readData = tx.readList(parentPath);
420 if (readData == null || readData.isEmpty()) {
421 yield replaceAndCommit(tx, path, data);
423 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
429 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
430 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
431 final boolean before) {
432 tx.remove(path.getParent());
434 int lastItemPosition = 0;
435 for (var nodeChild : readList.body()) {
436 if (nodeChild.name().equals(pointArg)) {
445 int lastInsertedPosition = 0;
446 final var emptySubtree = fromInstanceId(modelContext(), path.getParent());
447 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
448 for (var nodeChild : readList.body()) {
449 if (lastInsertedPosition == lastItemPosition) {
450 tx.replace(path, data);
452 final var childPath = path.coerceParent().node(nodeChild.name());
453 tx.replace(childPath, nodeChild);
454 lastInsertedPosition++;
457 // In case we are inserting after last element
459 if (lastInsertedPosition == lastItemPosition) {
460 tx.replace(path, data);
465 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
466 final YangInstanceIdentifier path, final NormalizedNode data) {
467 tx.replace(path, data);
471 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
472 // FIXME: we have this available in InstanceIdentifierContext
473 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
475 final String message;
476 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
477 if (listSchema.isUserOrdered()) {
480 message = "Insert parameter can be used only with ordered-by user list.";
481 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
482 if (leafListSchema.isUserOrdered()) {
483 return leafListSchema;
485 message = "Insert parameter can be used only with ordered-by user leaf-list.";
487 message = "Insert parameter can be used only with list or leaf-list";
489 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
493 * Check mount point and prepare variables for post data.
497 * @param insert {@link Insert}
498 * @return A {@link RestconfFuture}
500 public final @NonNull RestconfFuture<CreateResourceResult> postData(final YangInstanceIdentifier path,
501 final NormalizedNode data, final @Nullable Insert insert) {
502 final ListenableFuture<? extends CommitInfo> future;
503 if (insert != null) {
504 checkListAndOrderedType(path);
505 future = insertAndCommitPost(path, data, insert);
507 future = createAndCommit(prepareWriteExecution(), path, data);
510 final var ret = new SettableRestconfFuture<CreateResourceResult>();
511 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
513 public void onSuccess(final CommitInfo result) {
514 ret.set(new CreateResourceResult(new ApiPathCanonizer(databind).dataToApiPath(
515 data instanceof MapNode mapData && !mapData.isEmpty()
516 ? path.node(mapData.body().iterator().next().name()) : path)));
520 public void onFailure(final Throwable cause) {
521 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
524 }, MoreExecutors.directExecutor());
528 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
529 final NormalizedNode data, final @NonNull Insert insert) {
530 final var tx = prepareWriteExecution();
532 return switch (insert.insert()) {
534 final var readData = tx.readList(path);
535 if (readData == null || readData.isEmpty()) {
536 tx.replace(path, data);
538 checkListDataDoesNotExist(path, data);
540 tx.replace(path, data);
541 tx.replace(path, readData);
545 case LAST -> createAndCommit(tx, path, data);
547 final var readData = tx.readList(path);
548 if (readData == null || readData.isEmpty()) {
549 tx.replace(path, data);
551 checkListDataDoesNotExist(path, data);
552 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
557 final var readData = tx.readList(path);
558 if (readData == null || readData.isEmpty()) {
559 tx.replace(path, data);
561 checkListDataDoesNotExist(path, data);
562 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
570 * Merge data into the configuration datastore, as outlined in
571 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
573 * @param apiPath Path to merge
574 * @param body Data to merge
575 * @return A {@link RestconfFuture}
576 * @throws NullPointerException if any argument is {@code null}
578 public final @NonNull RestconfFuture<DataPatchResult> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
581 path = pathNormalizer.normalizeDataPath(apiPath);
582 } catch (RestconfDocumentedException e) {
583 return RestconfFuture.failed(e);
586 final NormalizedNode data;
588 data = body.toNormalizedNode(path);
589 } catch (RestconfDocumentedException e) {
590 return RestconfFuture.failed(e);
593 return merge(path.instance(), data);
596 public final @NonNull RestconfFuture<DataYangPatchResult> dataPATCH(final ApiPath apiPath, final QueryParams params,
597 final PatchBody body) {
598 final DataYangPatchParams patchParams;
600 patchParams = DataYangPatchParams.of(params);
601 } catch (IllegalArgumentException e) {
602 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
603 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
608 path = pathNormalizer.normalizeDataPath(apiPath);
609 } catch (RestconfDocumentedException e) {
610 return RestconfFuture.failed(e);
613 final PatchContext patch;
615 patch = body.toPatchContext(new DefaultResourceContext(path));
616 } catch (IOException e) {
617 LOG.debug("Error parsing YANG Patch input", e);
618 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
619 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
621 return patchData(patchParams, patch);
625 * Process edit operations of one {@link PatchContext}.
627 * @param patch Patch context to be processed
628 * @return {@link PatchStatusContext}
631 public final @NonNull RestconfFuture<DataYangPatchResult> patchData(final DataYangPatchParams params,
632 final PatchContext patch) {
633 final var editCollection = new ArrayList<PatchStatusEntity>();
634 final var tx = prepareWriteExecution();
636 boolean noError = true;
637 for (var patchEntity : patch.entities()) {
639 final var targetNode = patchEntity.getTargetNode();
640 final var editId = patchEntity.getEditId();
642 switch (patchEntity.getOperation()) {
645 tx.create(targetNode, patchEntity.getNode());
646 editCollection.add(new PatchStatusEntity(editId, true, null));
647 } catch (RestconfDocumentedException e) {
648 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
654 tx.delete(targetNode);
655 editCollection.add(new PatchStatusEntity(editId, true, null));
656 } catch (RestconfDocumentedException e) {
657 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
663 tx.ensureParentsByMerge(targetNode);
664 tx.merge(targetNode, patchEntity.getNode());
665 editCollection.add(new PatchStatusEntity(editId, true, null));
666 } catch (RestconfDocumentedException e) {
667 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
673 tx.replace(targetNode, patchEntity.getNode());
674 editCollection.add(new PatchStatusEntity(editId, true, null));
675 } catch (RestconfDocumentedException e) {
676 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
682 tx.remove(targetNode);
683 editCollection.add(new PatchStatusEntity(editId, true, null));
684 } catch (RestconfDocumentedException e) {
685 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
690 editCollection.add(new PatchStatusEntity(editId, false, List.of(
691 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
692 "Not supported Yang Patch operation"))));
701 final var ret = new SettableRestconfFuture<DataYangPatchResult>();
705 ret.set(new DataYangPatchResult(params,
706 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), false, null)));
710 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
712 public void onSuccess(final CommitInfo result) {
713 ret.set(new DataYangPatchResult(params,
714 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), true, null)));
718 public void onFailure(final Throwable cause) {
719 // if errors occurred during transaction commit then patch failed and global errors are reported
720 ret.set(new DataYangPatchResult(params,
721 new PatchStatusContext(databind(), patch.patchId(), List.copyOf(editCollection), false,
722 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors())));
724 }, MoreExecutors.directExecutor());
729 private static void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
730 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
731 final boolean before) {
734 int lastItemPosition = 0;
735 for (var nodeChild : readList.body()) {
736 if (nodeChild.name().equals(pointArg)) {
745 int lastInsertedPosition = 0;
746 for (var nodeChild : readList.body()) {
747 if (lastInsertedPosition == lastItemPosition) {
748 tx.replace(path, data);
750 tx.replace(path.node(nodeChild.name()), nodeChild);
751 lastInsertedPosition++;
754 // In case we are inserting after last element
756 if (lastInsertedPosition == lastItemPosition) {
757 tx.replace(path, data);
762 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
763 final YangInstanceIdentifier path, final NormalizedNode data) {
765 tx.create(path, data);
766 } catch (RestconfDocumentedException e) {
767 // close transaction if any and pass exception further
776 * Check if child items do NOT already exists in List at specified {@code path}.
778 * @param data Data to be checked
779 * @param path Path to be checked
780 * @throws RestconfDocumentedException if data already exists.
782 private void checkListDataDoesNotExist(final YangInstanceIdentifier path, final NormalizedNode data) {
783 if (data instanceof NormalizedNodeContainer<?> dataNode) {
784 for (final var node : dataNode.body()) {
785 checkItemDoesNotExists(exists(path.node(node.name())), path.node(node.name()));
788 throw new RestconfDocumentedException("Unexpected node type: " + data.getClass().getName());
793 * Check if items do NOT already exists at specified {@code path}.
795 * @param existsFuture if checked data exists
796 * @param path Path to be checked
797 * @throws RestconfDocumentedException if data already exists.
799 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
800 final YangInstanceIdentifier path) {
801 if (TransactionUtil.syncAccess(existsFuture, path)) {
802 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
803 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
809 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
810 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
812 * @param apiPath Path to delete
813 * @return A {@link RestconfFuture}
814 * @throws NullPointerException if {@code apiPath} is {@code null}
816 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
817 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
820 path = pathNormalizer.normalizeDataPath(apiPath);
821 } catch (RestconfDocumentedException e) {
822 return RestconfFuture.failed(e);
825 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
826 final var ret = new SettableRestconfFuture<Empty>();
827 delete(ret, path.instance());
831 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
833 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath, final QueryParams params) {
836 path = pathNormalizer.normalizeDataPath(apiPath);
837 } catch (RestconfDocumentedException e) {
838 return RestconfFuture.failed(e);
841 final DataGetParams getParams;
843 getParams = DataGetParams.of(params);
844 } catch (IllegalArgumentException e) {
845 return RestconfFuture.failed(new RestconfDocumentedException(e,
846 new RestconfError(ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, "Invalid GET /data parameters", null,
849 return dataGET(path, getParams);
852 abstract @NonNull RestconfFuture<DataGetResult> dataGET(Data path, DataGetParams params);
854 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
855 final WriterParameters writerParams, final @Nullable NormalizedNode node,
856 final @Nullable ConfigurationMetadata metadata) {
858 return RestconfFuture.failed(new RestconfDocumentedException(
859 "Request could not be completed because the relevant data model content does not exist",
860 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
863 final var payload = new NormalizedNodePayload(inference, node, writerParams);
864 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
865 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
869 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
870 * inside of object {@link RestconfStrategy} provided as a parameter.
872 * @param content type of data to read (config, state, all)
873 * @param path the path to read
874 * @param defaultsMode value of with-defaults parameter
875 * @return {@link NormalizedNode}
877 // FIXME: NETCONF-1155: this method should asynchronous
879 final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
880 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
881 return switch (content) {
883 // PREPARE STATE DATA NODE
884 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
885 // PREPARE CONFIG DATA NODE
886 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
888 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
889 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
892 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
893 yield defaultsMode == null ? read
894 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
896 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
900 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
901 final YangInstanceIdentifier path) {
902 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
905 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
906 final WithDefaultsMode defaultsMode) {
907 final boolean trim = switch (defaultsMode) {
909 case Explicit -> false;
910 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
911 "Unsupported with-defaults value " + defaultsMode.getName());
914 // FIXME: we have this readily available in InstanceIdentifierContext
915 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
916 if (readData instanceof ContainerNode container) {
917 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
918 buildCont(builder, container.body(), ctxNode, trim);
919 return builder.build();
920 } else if (readData instanceof MapEntryNode mapEntry) {
921 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
922 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
925 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(mapEntry.name());
926 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
927 return builder.build();
929 throw new IllegalStateException("Unhandled data contract " + readData.contract());
933 private static void buildMapEntryBuilder(
934 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
935 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
936 final boolean trim, final List<QName> keys) {
937 for (var child : children) {
938 final var childCtx = getChildContext(ctxNode, child);
940 if (child instanceof ContainerNode container) {
941 appendContainer(builder, container, childCtx, trim);
942 } else if (child instanceof MapNode map) {
943 appendMap(builder, map, childCtx, trim);
944 } else if (child instanceof LeafNode<?> leaf) {
945 appendLeaf(builder, leaf, childCtx, trim, keys);
947 // FIXME: we should never hit this, throw an ISE if this ever happens
948 LOG.debug("Ignoring unhandled child contract {}", child.contract());
953 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
954 final DataSchemaContext ctxNode, final boolean trim) {
955 final var childBuilder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
956 buildCont(childBuilder, container.body(), ctxNode, trim);
957 builder.withChild(childBuilder.build());
960 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
961 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
962 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
963 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
966 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
967 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
969 // This is a combined check for when we need to emit the leaf.
971 // We always have to emit key leaf values
972 keys.contains(leafSchema.getQName())
973 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
975 // When data is retrieved with a <with-defaults> parameter equal to
976 // 'trim', data nodes MUST NOT be reported if they contain the schema
977 // default value. Non-configuration data nodes containing the schema
978 // default value MUST NOT be reported.
980 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
981 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
982 // grasp what we are doing here... emit only if it matches default ???!!!
983 // FIXME: The WithDefaultsParam.EXPLICIT says:
985 // Data nodes set to the YANG default by the client are reported.
987 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
989 // If the "with-defaults" parameter is set to "explicit", then the
990 // server MUST adhere to the default-reporting behavior defined in
991 // Section 3.3 of [RFC6243].
993 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
995 // When data is retrieved with a <with-defaults> parameter equal to
996 // 'explicit', a data node that was set by a client to its schema
997 // default value MUST be reported. A conceptual data node that would be
998 // set by the server to the schema default value MUST NOT be reported.
999 // Non-configuration data nodes containing the schema default value MUST
1002 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
1003 // This seems to disregard the 'trim = true' case semantics (see above).
1004 // Combining the above, though, these checks are missing the 'non-config' check, which would
1005 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
1006 // Without that input, this really should be covered by the previous case.
1007 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
1008 builder.withChild(leaf);
1012 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
1013 final DataSchemaContext childCtx, final boolean trim) {
1014 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
1015 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
1018 final var childBuilder = switch (map.ordering()) {
1019 case SYSTEM -> ImmutableNodes.newSystemMapBuilder();
1020 case USER -> ImmutableNodes.newUserMapBuilder();
1022 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
1023 listSchema.getKeyDefinition());
1024 builder.withChild(childBuilder.build());
1027 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
1028 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
1029 final List<@NonNull QName> keys) {
1030 for (var entry : entries) {
1031 final var childCtx = getChildContext(ctxNode, entry);
1032 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(entry.name());
1033 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
1034 builder.withChild(mapEntryBuilder.build());
1038 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
1039 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
1040 for (var child : children) {
1041 final var childCtx = getChildContext(ctxNode, child);
1042 if (child instanceof ContainerNode container) {
1043 appendContainer(builder, container, childCtx, trim);
1044 } else if (child instanceof MapNode map) {
1045 appendMap(builder, map, childCtx, trim);
1046 } else if (child instanceof LeafNode<?> leaf) {
1047 appendLeaf(builder, leaf, childCtx, trim, List.of());
1052 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1053 final NormalizedNode child) {
1054 final var childId = child.name();
1055 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1057 if (childCtx == null) {
1058 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1063 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1064 final NormalizedNode configDataNode) {
1065 if (stateDataNode == null) {
1066 // No state, return config
1067 return configDataNode;
1069 if (configDataNode == null) {
1070 // No config, return state
1071 return stateDataNode;
1073 // merge config and state
1074 return mergeStateAndConfigData(stateDataNode, configDataNode);
1078 * Merge state and config data into a single NormalizedNode.
1080 * @param stateDataNode data node of state data
1081 * @param configDataNode data node of config data
1082 * @return {@link NormalizedNode}
1084 private static @NonNull NormalizedNode mergeStateAndConfigData(
1085 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1086 validateNodeMerge(stateDataNode, configDataNode);
1087 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1088 if (configDataNode instanceof RpcDefinition) {
1089 return prepareRpcData(configDataNode, stateDataNode);
1091 return prepareData(configDataNode, stateDataNode);
1096 * Validates whether the two NormalizedNodes can be merged.
1098 * @param stateDataNode data node of state data
1099 * @param configDataNode data node of config data
1101 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1102 final @NonNull NormalizedNode configDataNode) {
1103 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1104 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1105 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1106 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1111 * Prepare and map data for rpc.
1113 * @param configDataNode data node of config data
1114 * @param stateDataNode data node of state data
1115 * @return {@link NormalizedNode}
1117 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1118 final @NonNull NormalizedNode stateDataNode) {
1119 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder()
1120 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1123 mapRpcDataNode(configDataNode, mapEntryBuilder);
1125 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1127 return ImmutableNodes.newSystemMapBuilder()
1128 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1129 .addChild(mapEntryBuilder.build())
1134 * Map node to map entry builder.
1136 * @param dataNode data node
1137 * @param mapEntryBuilder builder for mapping data
1139 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1140 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1141 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1145 * Prepare and map all data from DS.
1147 * @param configDataNode data node of config data
1148 * @param stateDataNode data node of state data
1149 * @return {@link NormalizedNode}
1151 @SuppressWarnings("unchecked")
1152 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1153 final @NonNull NormalizedNode stateDataNode) {
1154 if (configDataNode instanceof UserMapNode configMap) {
1155 final var builder = ImmutableNodes.newUserMapBuilder().withNodeIdentifier(configMap.name());
1156 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1157 return builder.build();
1158 } else if (configDataNode instanceof SystemMapNode configMap) {
1159 final var builder = ImmutableNodes.newSystemMapBuilder().withNodeIdentifier(configMap.name());
1160 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1161 return builder.build();
1162 } else if (configDataNode instanceof MapEntryNode configEntry) {
1163 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(configEntry.name());
1164 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1165 return builder.build();
1166 } else if (configDataNode instanceof ContainerNode configContaienr) {
1167 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(configContaienr.name());
1168 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1169 return builder.build();
1170 } else if (configDataNode instanceof ChoiceNode configChoice) {
1171 final var builder = ImmutableNodes.newChoiceBuilder().withNodeIdentifier(configChoice.name());
1172 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1173 return builder.build();
1174 } else if (configDataNode instanceof LeafNode configLeaf) {
1175 // config trumps oper
1177 } else if (configDataNode instanceof UserLeafSetNode) {
1178 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1179 final var builder = ImmutableNodes.<Object>newUserLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1180 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1181 return builder.build();
1182 } else if (configDataNode instanceof SystemLeafSetNode) {
1183 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1184 final var builder = ImmutableNodes.<Object>newSystemLeafSetBuilder()
1185 .withNodeIdentifier(configLeafSet.name());
1186 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1187 return builder.build();
1188 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1189 // config trumps oper
1191 } else if (configDataNode instanceof UnkeyedListNode configList) {
1192 final var builder = ImmutableNodes.newUnkeyedListBuilder().withNodeIdentifier(configList.name());
1193 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1194 return builder.build();
1195 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1196 final var builder = ImmutableNodes.newUnkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1197 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1198 return builder.build();
1200 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1205 * Map value from container node to builder.
1207 * @param configData collection of config data nodes
1208 * @param stateData collection of state data nodes
1209 * @param builder builder
1211 private static <T extends NormalizedNode> void mapValueToBuilder(
1212 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1213 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1214 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1215 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1217 // merge config and state data of children with different identifiers
1218 mapDataToBuilder(configMap, stateMap, builder);
1220 // merge config and state data of children with the same identifiers
1221 mergeDataToBuilder(configMap, stateMap, builder);
1225 * Map data with different identifiers to builder. Data with different identifiers can be just added
1226 * as childs to parent node.
1228 * @param configMap map of config data nodes
1229 * @param stateMap map of state data nodes
1230 * @param builder - builder
1232 private static <T extends NormalizedNode> void mapDataToBuilder(
1233 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1234 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1235 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1236 y -> builder.addChild(y.getValue()));
1237 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1238 y -> builder.addChild(y.getValue()));
1242 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1243 * go one level down with {@code prepareData} method.
1245 * @param configMap immutable config data
1246 * @param stateMap immutable state data
1247 * @param builder - builder
1249 @SuppressWarnings("unchecked")
1250 private static <T extends NormalizedNode> void mergeDataToBuilder(
1251 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1252 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1253 // it is enough to process only config data because operational contains the same data
1254 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1255 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1258 public @NonNull RestconfFuture<FormattableBody> operationsGET() {
1259 return operations.httpGET();
1262 public @NonNull RestconfFuture<FormattableBody> operationsGET(final ApiPath apiPath) {
1263 return operations.httpGET(apiPath);
1266 public @NonNull RestconfFuture<InvokeResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1267 final QueryParams params, final OperationInputBody body) {
1270 path = pathNormalizer.normalizeRpcPath(apiPath);
1271 } catch (RestconfDocumentedException e) {
1272 return RestconfFuture.failed(e);
1275 final InvokeParams invokeParams;
1277 invokeParams = InvokeParams.of(params);
1278 } catch (IllegalArgumentException e) {
1279 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1280 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1283 final ContainerNode data;
1285 data = body.toContainerNode(path);
1286 } catch (IOException e) {
1287 LOG.debug("Error reading input", e);
1288 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1289 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1292 final var type = path.rpc().argument();
1293 final var local = localRpcs.get(type);
1294 if (local != null) {
1295 return local.invoke(restconfURI, new OperationInput(path, data))
1296 .transform(output -> outputToInvokeResult(path, invokeParams, output));
1298 if (rpcService == null) {
1299 LOG.debug("RPC invocation is not available");
1300 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1301 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1304 final var ret = new SettableRestconfFuture<InvokeResult>();
1305 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1307 public void onSuccess(final DOMRpcResult response) {
1308 final var errors = response.errors();
1309 if (errors.isEmpty()) {
1310 ret.set(outputToInvokeResult(path, invokeParams, response.value()));
1312 LOG.debug("RPC invocation reported {}", response.errors());
1313 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1314 response.errors()));
1319 public void onFailure(final Throwable cause) {
1320 LOG.debug("RPC invocation failed, cause");
1321 if (cause instanceof RestconfDocumentedException ex) {
1324 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1325 ret.setFailure(new RestconfDocumentedException(cause,
1326 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1329 }, MoreExecutors.directExecutor());
1333 private static @NonNull InvokeResult outputToInvokeResult(final @NonNull OperationPath path,
1334 final @NonNull InvokeParams params, final @Nullable ContainerNode value) {
1335 return value == null || value.isEmpty() ? InvokeResult.EMPTY
1336 : new InvokeResult(new OperationOutputBody(params, path, value));
1339 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1340 final Class<? extends SourceRepresentation> representation) {
1341 final var src = requireNonNull(source);
1342 if (YangTextSource.class.isAssignableFrom(representation)) {
1343 if (sourceProvider != null) {
1344 final var ret = new SettableRestconfFuture<CharSource>();
1345 Futures.addCallback(sourceProvider.getYangTexttSource(src), new FutureCallback<>() {
1347 public void onSuccess(final YangTextSource result) {
1352 public void onFailure(final Throwable cause) {
1353 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1354 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1355 ErrorTag.OPERATION_FAILED, cause));
1357 }, MoreExecutors.directExecutor());
1360 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1362 if (YinTextSource.class.isAssignableFrom(representation)) {
1363 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1365 return RestconfFuture.failed(new RestconfDocumentedException(
1366 "Unsupported source representation " + representation.getName()));
1369 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1370 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1371 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1372 // If the source identifies a module, things are easy
1373 final var name = source.name().getLocalName();
1374 final var optRevision = Optional.ofNullable(source.revision());
1375 final var optModule = modelContext.findModule(name, optRevision);
1376 if (optModule.isPresent()) {
1377 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1380 // The source could be a submodule, which we need to hunt down
1381 for (var module : modelContext.getModules()) {
1382 for (var submodule : module.getSubmodules()) {
1383 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1384 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1385 submodule.asEffectiveStatement()));
1390 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1391 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1392 sb.append(" not found");
1393 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1394 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1397 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1398 final QueryParams params, final DataPostBody body) {
1399 if (apiPath.steps().isEmpty()) {
1400 return dataCreatePOST(params, body.toResource());
1402 final InstanceReference path;
1404 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1405 } catch (RestconfDocumentedException e) {
1406 return RestconfFuture.failed(e);
1408 if (path instanceof Data dataPath) {
1409 try (var resourceBody = body.toResource()) {
1410 return dataCreatePOST(dataPath, params, resourceBody);
1413 if (path instanceof Action actionPath) {
1414 try (var inputBody = body.toOperationInput()) {
1415 return dataInvokePOST(actionPath, params, inputBody);
1418 // Note: this should never happen
1419 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1420 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1423 public @NonNull RestconfFuture<CreateResourceResult> dataCreatePOST(final QueryParams params,
1424 final ChildBody body) {
1425 return dataCreatePOST(new DatabindPath.Data(databind), params, body);
1428 private @NonNull RestconfFuture<CreateResourceResult> dataCreatePOST(final DatabindPath.Data path,
1429 final QueryParams params, final ChildBody body) {
1430 final Insert insert;
1432 insert = Insert.of(path.databind(), params);
1433 } catch (IllegalArgumentException e) {
1434 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1435 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1438 final var payload = body.toPayload(path);
1439 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1442 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1444 for (var arg : args) {
1445 ret = ret.node(arg);
1450 private @NonNull RestconfFuture<InvokeResult> dataInvokePOST(final @NonNull Action path,
1451 final @NonNull QueryParams params, final @NonNull OperationInputBody body) {
1452 final InvokeParams invokeParams;
1454 invokeParams = InvokeParams.of(params);
1455 } catch (IllegalArgumentException e) {
1456 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1457 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1460 final ContainerNode input;
1462 input = body.toContainerNode(path);
1463 } catch (IOException e) {
1464 LOG.debug("Error reading input", e);
1465 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1466 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1469 if (actionService == null) {
1470 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1473 return dataInvokePOST(actionService, path, input)
1474 .transform(result -> outputToInvokeResult(path, invokeParams, result.getOutput().orElse(null)));
1478 * Invoke Action via ActionServiceHandler.
1480 * @param input input data
1481 * @param yangIId invocation context
1482 * @param schemaPath schema path of data
1483 * @param actionService action service to invoke action
1484 * @return {@link DOMActionResult}
1486 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1487 final Action path, final @NonNull ContainerNode input) {
1488 final var ret = new SettableRestconfFuture<DOMActionResult>();
1490 Futures.addCallback(actionService.invokeAction(
1491 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1492 DOMDataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1493 new FutureCallback<DOMActionResult>() {
1495 public void onSuccess(final DOMActionResult result) {
1496 final var errors = result.getErrors();
1497 LOG.debug("InvokeAction Error Message {}", errors);
1498 if (errors.isEmpty()) {
1501 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1506 public void onFailure(final Throwable cause) {
1507 if (cause instanceof DOMActionException) {
1508 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1509 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1510 } else if (cause instanceof RestconfDocumentedException e) {
1512 } else if (cause instanceof CancellationException) {
1513 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1514 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1516 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1519 }, MoreExecutors.directExecutor());