2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.restconf.nb.rfc8040.rests.transactions;
10 import static com.google.common.base.Verify.verifyNotNull;
11 import static java.util.Objects.requireNonNull;
12 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.fromInstanceId;
14 import com.google.common.annotations.VisibleForTesting;
15 import com.google.common.collect.ImmutableMap;
16 import com.google.common.collect.ImmutableSet;
17 import com.google.common.collect.ImmutableSetMultimap;
18 import com.google.common.io.CharSource;
19 import com.google.common.util.concurrent.FutureCallback;
20 import com.google.common.util.concurrent.Futures;
21 import com.google.common.util.concurrent.ListenableFuture;
22 import com.google.common.util.concurrent.MoreExecutors;
23 import java.io.IOException;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.Comparator;
28 import java.util.HashMap;
29 import java.util.List;
31 import java.util.Map.Entry;
32 import java.util.NoSuchElementException;
33 import java.util.Optional;
34 import java.util.concurrent.CancellationException;
35 import java.util.function.BiFunction;
36 import java.util.function.Function;
37 import java.util.stream.Collectors;
38 import org.eclipse.jdt.annotation.NonNull;
39 import org.eclipse.jdt.annotation.NonNullByDefault;
40 import org.eclipse.jdt.annotation.Nullable;
41 import org.opendaylight.mdsal.common.api.CommitInfo;
42 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
43 import org.opendaylight.mdsal.dom.api.DOMActionException;
44 import org.opendaylight.mdsal.dom.api.DOMActionResult;
45 import org.opendaylight.mdsal.dom.api.DOMActionService;
46 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
47 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
48 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
49 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
50 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
51 import org.opendaylight.mdsal.dom.api.DOMRpcService;
52 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
53 import org.opendaylight.mdsal.dom.api.DOMSchemaService.YangTextSourceExtension;
54 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
55 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
56 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
57 import org.opendaylight.restconf.api.ApiPath;
58 import org.opendaylight.restconf.api.query.ContentParam;
59 import org.opendaylight.restconf.api.query.WithDefaultsParam;
60 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
61 import org.opendaylight.restconf.common.errors.RestconfError;
62 import org.opendaylight.restconf.common.errors.RestconfFuture;
63 import org.opendaylight.restconf.common.errors.SettableRestconfFuture;
64 import org.opendaylight.restconf.common.patch.PatchContext;
65 import org.opendaylight.restconf.common.patch.PatchStatusContext;
66 import org.opendaylight.restconf.common.patch.PatchStatusEntity;
67 import org.opendaylight.restconf.nb.rfc8040.Insert;
68 import org.opendaylight.restconf.nb.rfc8040.legacy.ErrorTags;
69 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
70 import org.opendaylight.restconf.nb.rfc8040.legacy.QueryParameters;
71 import org.opendaylight.restconf.server.api.ChildBody;
72 import org.opendaylight.restconf.server.api.ConfigurationMetadata;
73 import org.opendaylight.restconf.server.api.DataGetParams;
74 import org.opendaylight.restconf.server.api.DataGetResult;
75 import org.opendaylight.restconf.server.api.DataPatchResult;
76 import org.opendaylight.restconf.server.api.DataPostBody;
77 import org.opendaylight.restconf.server.api.DataPostResult;
78 import org.opendaylight.restconf.server.api.DataPostResult.CreateResource;
79 import org.opendaylight.restconf.server.api.DataPutResult;
80 import org.opendaylight.restconf.server.api.DataYangPatchResult;
81 import org.opendaylight.restconf.server.api.DatabindContext;
82 import org.opendaylight.restconf.server.api.DatabindPath;
83 import org.opendaylight.restconf.server.api.DatabindPath.Action;
84 import org.opendaylight.restconf.server.api.DatabindPath.Data;
85 import org.opendaylight.restconf.server.api.DatabindPath.InstanceReference;
86 import org.opendaylight.restconf.server.api.DatabindPath.OperationPath;
87 import org.opendaylight.restconf.server.api.DatabindPath.Rpc;
88 import org.opendaylight.restconf.server.api.InvokeParams;
89 import org.opendaylight.restconf.server.api.InvokeResult;
90 import org.opendaylight.restconf.server.api.OperationInputBody;
91 import org.opendaylight.restconf.server.api.OperationOutputBody;
92 import org.opendaylight.restconf.server.api.OperationsGetResult;
93 import org.opendaylight.restconf.server.api.PatchBody;
94 import org.opendaylight.restconf.server.api.ResourceBody;
95 import org.opendaylight.restconf.server.spi.ApiPathCanonizer;
96 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
97 import org.opendaylight.restconf.server.spi.DefaultResourceContext;
98 import org.opendaylight.restconf.server.spi.OperationInput;
99 import org.opendaylight.restconf.server.spi.RpcImplementation;
100 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
101 import org.opendaylight.yangtools.yang.common.Empty;
102 import org.opendaylight.yangtools.yang.common.ErrorTag;
103 import org.opendaylight.yangtools.yang.common.ErrorType;
104 import org.opendaylight.yangtools.yang.common.QName;
105 import org.opendaylight.yangtools.yang.common.QNameModule;
106 import org.opendaylight.yangtools.yang.common.Revision;
107 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
108 import org.opendaylight.yangtools.yang.common.XMLNamespace;
109 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
110 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
111 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
112 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
113 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
114 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
116 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
117 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
118 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
119 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
121 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
122 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
123 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
124 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
125 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
126 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
127 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
128 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
129 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
130 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
131 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
132 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
133 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
134 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
135 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
136 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
137 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
138 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
139 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
140 import org.opendaylight.yangtools.yang.model.api.source.SourceRepresentation;
141 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
142 import org.opendaylight.yangtools.yang.model.api.source.YinTextSource;
143 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
144 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
145 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
146 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
147 import org.slf4j.Logger;
148 import org.slf4j.LoggerFactory;
151 * Baseline execution strategy for various RESTCONF operations.
153 * @see NetconfRestconfStrategy
154 * @see MdsalRestconfStrategy
156 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
157 // operations. This should be handled through proper allocation indirection.
158 public abstract class RestconfStrategy {
160 public record StrategyAndPath(RestconfStrategy strategy, Data path) {
161 public StrategyAndPath {
162 requireNonNull(strategy);
163 requireNonNull(path);
168 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
169 * points with possible nesting.
171 * @param strategy the strategy to use
172 * @param tail the {@link ApiPath} tail to use with the strategy
175 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
176 public StrategyAndTail {
177 requireNonNull(strategy);
178 requireNonNull(tail);
182 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
183 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
184 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
185 private static final @NonNull DataPatchResult PATCH_EMPTY = new DataPatchResult();
187 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
188 private final @NonNull ApiPathNormalizer pathNormalizer;
189 private final @NonNull DatabindContext databind;
190 private final YangTextSourceExtension sourceProvider;
191 private final DOMMountPointService mountPointService;
192 private final DOMActionService actionService;
193 private final DOMRpcService rpcService;
195 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
196 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
197 final YangTextSourceExtension sourceProvider, final @Nullable DOMMountPointService mountPointService) {
198 this.databind = requireNonNull(databind);
199 this.localRpcs = requireNonNull(localRpcs);
200 this.rpcService = rpcService;
201 this.actionService = actionService;
202 this.sourceProvider = sourceProvider;
203 this.mountPointService = mountPointService;
204 pathNormalizer = new ApiPathNormalizer(databind);
207 public final @NonNull StrategyAndPath resolveStrategyPath(final ApiPath path) {
208 final var andTail = resolveStrategy(path);
209 final var strategy = andTail.strategy();
210 return new StrategyAndPath(strategy, strategy.pathNormalizer.normalizeDataPath(andTail.tail()));
214 * Resolve any and all {@code yang-ext:mount} to the target {@link StrategyAndTail}.
216 * @param path {@link ApiPath} to resolve
217 * @return A strategy and the remaining path
218 * @throws NullPointerException if {@code path} is {@code null}
220 public final @NonNull StrategyAndTail resolveStrategy(final ApiPath path) {
221 var mount = path.indexOf("yang-ext", "mount");
223 return new StrategyAndTail(this, path);
225 if (mountPointService == null) {
226 throw new RestconfDocumentedException("Mount point service is not available",
227 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
229 final var mountPath = path.subPath(0, mount);
230 final var dataPath = pathNormalizer.normalizeDataPath(path.subPath(0, mount));
231 final var mountPoint = mountPointService.getMountPoint(dataPath.instance())
232 .orElseThrow(() -> new RestconfDocumentedException("Mount point '" + mountPath + "' does not exist",
233 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
235 return createStrategy(mountPath, mountPoint).resolveStrategy(path.subPath(mount + 1));
238 private static @NonNull RestconfStrategy createStrategy(final ApiPath mountPath, final DOMMountPoint mountPoint) {
239 final var mountSchemaService = mountPoint.getService(DOMSchemaService.class)
240 .orElseThrow(() -> new RestconfDocumentedException(
241 "Mount point '" + mountPath + "' does not expose DOMSchemaService",
242 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT));
243 final var mountModelContext = mountSchemaService.getGlobalContext();
244 if (mountModelContext == null) {
245 throw new RestconfDocumentedException("Mount point '" + mountPath + "' does not have any models",
246 ErrorType.PROTOCOL, ErrorTags.RESOURCE_DENIED_TRANSPORT);
248 final var mountDatabind = DatabindContext.ofModel(mountModelContext);
249 final var mountPointService = mountPoint.getService(DOMMountPointService.class).orElse(null);
250 final var rpcService = mountPoint.getService(DOMRpcService.class).orElse(null);
251 final var actionService = mountPoint.getService(DOMActionService.class).orElse(null);
252 final var sourceProvider = mountPoint.getService(DOMSchemaService.class)
253 .flatMap(schema -> Optional.ofNullable(schema.extension(YangTextSourceExtension.class)))
256 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
257 if (netconfService.isPresent()) {
258 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
259 sourceProvider, mountPointService);
261 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
262 if (dataBroker.isPresent()) {
263 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), rpcService, actionService,
264 sourceProvider, mountPointService);
266 LOG.warn("Mount point {} does not expose a suitable access interface", mountPath);
267 throw new RestconfDocumentedException("Could not find a supported access interface in mount point",
268 ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED, mountPoint.getIdentifier());
271 public final @NonNull DatabindContext databind() {
275 public final @NonNull EffectiveModelContext modelContext() {
276 return databind.modelContext();
280 * Lock the entire datastore.
282 * @return A {@link RestconfTransaction}. This transaction needs to be either committed or canceled before doing
285 abstract RestconfTransaction prepareWriteExecution();
288 * Read data from the datastore.
290 * @param store the logical data store which should be modified
291 * @param path the data object path
292 * @return a ListenableFuture containing the result of the read
294 abstract ListenableFuture<Optional<NormalizedNode>> read(LogicalDatastoreType store, YangInstanceIdentifier path);
297 * Check if data already exists in the configuration datastore.
299 * @param path the data object path
300 * @return a ListenableFuture containing the result of the check
302 // FIXME: this method should be hosted in RestconfTransaction
303 // FIXME: this method should only be needed in MdsalRestconfStrategy
304 abstract ListenableFuture<Boolean> exists(YangInstanceIdentifier path);
307 final @NonNull RestconfFuture<DataPatchResult> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
308 final var ret = new SettableRestconfFuture<DataPatchResult>();
309 merge(ret, requireNonNull(path), requireNonNull(data));
313 private void merge(final @NonNull SettableRestconfFuture<DataPatchResult> future,
314 final @NonNull YangInstanceIdentifier path, final @NonNull NormalizedNode data) {
315 final var tx = prepareWriteExecution();
316 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
317 tx.ensureParentsByMerge(path);
318 tx.merge(path, data);
319 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
321 public void onSuccess(final CommitInfo result) {
322 // TODO: extract details once CommitInfo can communicate them
323 future.set(PATCH_EMPTY);
327 public void onFailure(final Throwable cause) {
328 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
330 }, MoreExecutors.directExecutor());
333 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
334 final Map<String, String> queryParameters) {
337 path = pathNormalizer.normalizeDataPath(apiPath);
338 } catch (RestconfDocumentedException e) {
339 return RestconfFuture.failed(e);
344 insert = Insert.ofQueryParameters(databind, queryParameters);
345 } catch (IllegalArgumentException e) {
346 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
347 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
349 final NormalizedNode data;
351 data = body.toNormalizedNode(path);
352 } catch (RestconfDocumentedException e) {
353 return RestconfFuture.failed(e);
355 return putData(path.instance(), data, insert);
359 * Check mount point and prepare variables for put data to DS.
361 * @param path path of data
363 * @param insert {@link Insert}
364 * @return A {@link DataPutResult}
366 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
367 final NormalizedNode data, final @Nullable Insert insert) {
368 final var exists = TransactionUtil.syncAccess(exists(path), path);
370 final ListenableFuture<? extends CommitInfo> commitFuture;
371 if (insert != null) {
372 final var parentPath = path.coerceParent();
373 checkListAndOrderedType(parentPath);
374 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
376 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
379 final var ret = new SettableRestconfFuture<DataPutResult>();
381 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
383 public void onSuccess(final CommitInfo result) {
384 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
388 public void onFailure(final Throwable cause) {
389 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
391 }, MoreExecutors.directExecutor());
396 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
397 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
398 final var tx = prepareWriteExecution();
400 return switch (insert.insert()) {
402 final var readData = tx.readList(parentPath);
403 if (readData == null || readData.isEmpty()) {
404 yield replaceAndCommit(tx, path, data);
406 tx.remove(parentPath);
407 tx.replace(path, data);
408 tx.replace(parentPath, readData);
411 case LAST -> replaceAndCommit(tx, path, data);
413 final var readData = tx.readList(parentPath);
414 if (readData == null || readData.isEmpty()) {
415 yield replaceAndCommit(tx, path, data);
417 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
421 final var readData = tx.readList(parentPath);
422 if (readData == null || readData.isEmpty()) {
423 yield replaceAndCommit(tx, path, data);
425 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
431 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
432 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
433 final boolean before) {
434 tx.remove(path.getParent());
436 int lastItemPosition = 0;
437 for (var nodeChild : readList.body()) {
438 if (nodeChild.name().equals(pointArg)) {
447 int lastInsertedPosition = 0;
448 final var emptySubtree = fromInstanceId(modelContext(), path.getParent());
449 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
450 for (var nodeChild : readList.body()) {
451 if (lastInsertedPosition == lastItemPosition) {
452 tx.replace(path, data);
454 final var childPath = path.coerceParent().node(nodeChild.name());
455 tx.replace(childPath, nodeChild);
456 lastInsertedPosition++;
459 // In case we are inserting after last element
461 if (lastInsertedPosition == lastItemPosition) {
462 tx.replace(path, data);
467 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
468 final YangInstanceIdentifier path, final NormalizedNode data) {
469 tx.replace(path, data);
473 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
474 // FIXME: we have this available in InstanceIdentifierContext
475 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
477 final String message;
478 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
479 if (listSchema.isUserOrdered()) {
482 message = "Insert parameter can be used only with ordered-by user list.";
483 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
484 if (leafListSchema.isUserOrdered()) {
485 return leafListSchema;
487 message = "Insert parameter can be used only with ordered-by user leaf-list.";
489 message = "Insert parameter can be used only with list or leaf-list";
491 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
495 * Check mount point and prepare variables for post data.
499 * @param insert {@link Insert}
500 * @return A {@link RestconfFuture}
502 public final @NonNull RestconfFuture<CreateResource> postData(final YangInstanceIdentifier path,
503 final NormalizedNode data, final @Nullable Insert insert) {
504 final ListenableFuture<? extends CommitInfo> future;
505 if (insert != null) {
506 checkListAndOrderedType(path);
507 future = insertAndCommitPost(path, data, insert);
509 future = createAndCommit(prepareWriteExecution(), path, data);
512 final var ret = new SettableRestconfFuture<CreateResource>();
513 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
515 public void onSuccess(final CommitInfo result) {
516 ret.set(new CreateResource(new ApiPathCanonizer(databind).dataToApiPath(
517 data instanceof MapNode mapData && !mapData.isEmpty()
518 ? path.node(mapData.body().iterator().next().name()) : path).toString()));
522 public void onFailure(final Throwable cause) {
523 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
526 }, MoreExecutors.directExecutor());
530 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
531 final NormalizedNode data, final @NonNull Insert insert) {
532 final var tx = prepareWriteExecution();
534 return switch (insert.insert()) {
536 final var readData = tx.readList(path);
537 if (readData == null || readData.isEmpty()) {
538 tx.replace(path, data);
540 checkListDataDoesNotExist(path, data);
542 tx.replace(path, data);
543 tx.replace(path, readData);
547 case LAST -> createAndCommit(tx, path, data);
549 final var readData = tx.readList(path);
550 if (readData == null || readData.isEmpty()) {
551 tx.replace(path, data);
553 checkListDataDoesNotExist(path, data);
554 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
559 final var readData = tx.readList(path);
560 if (readData == null || readData.isEmpty()) {
561 tx.replace(path, data);
563 checkListDataDoesNotExist(path, data);
564 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
572 * Merge data into the configuration datastore, as outlined in
573 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
575 * @param apiPath Path to merge
576 * @param body Data to merge
577 * @return A {@link RestconfFuture}
578 * @throws NullPointerException if any argument is {@code null}
580 public final @NonNull RestconfFuture<DataPatchResult> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
583 path = pathNormalizer.normalizeDataPath(apiPath);
584 } catch (RestconfDocumentedException e) {
585 return RestconfFuture.failed(e);
588 final NormalizedNode data;
590 data = body.toNormalizedNode(path);
591 } catch (RestconfDocumentedException e) {
592 return RestconfFuture.failed(e);
595 return merge(path.instance(), data);
598 public final @NonNull RestconfFuture<DataYangPatchResult> dataPATCH(final ApiPath apiPath, final PatchBody body) {
601 path = pathNormalizer.normalizeDataPath(apiPath);
602 } catch (RestconfDocumentedException e) {
603 return RestconfFuture.failed(e);
606 final PatchContext patch;
608 patch = body.toPatchContext(new DefaultResourceContext(path));
609 } catch (IOException e) {
610 LOG.debug("Error parsing YANG Patch input", e);
611 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
612 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
614 return patchData(patch);
618 * Process edit operations of one {@link PatchContext}.
620 * @param patch Patch context to be processed
621 * @return {@link PatchStatusContext}
623 public final @NonNull RestconfFuture<DataYangPatchResult> patchData(final PatchContext patch) {
624 final var editCollection = new ArrayList<PatchStatusEntity>();
625 final var tx = prepareWriteExecution();
627 boolean noError = true;
628 for (var patchEntity : patch.entities()) {
630 final var targetNode = patchEntity.getTargetNode();
631 final var editId = patchEntity.getEditId();
633 switch (patchEntity.getOperation()) {
636 tx.create(targetNode, patchEntity.getNode());
637 editCollection.add(new PatchStatusEntity(editId, true, null));
638 } catch (RestconfDocumentedException e) {
639 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
645 tx.delete(targetNode);
646 editCollection.add(new PatchStatusEntity(editId, true, null));
647 } catch (RestconfDocumentedException e) {
648 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
654 tx.ensureParentsByMerge(targetNode);
655 tx.merge(targetNode, patchEntity.getNode());
656 editCollection.add(new PatchStatusEntity(editId, true, null));
657 } catch (RestconfDocumentedException e) {
658 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
664 tx.replace(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.remove(targetNode);
674 editCollection.add(new PatchStatusEntity(editId, true, null));
675 } catch (RestconfDocumentedException e) {
676 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
681 editCollection.add(new PatchStatusEntity(editId, false, List.of(
682 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
683 "Not supported Yang Patch operation"))));
692 final var ret = new SettableRestconfFuture<DataYangPatchResult>();
696 ret.set(new DataYangPatchResult(
697 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false, null)));
701 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
703 public void onSuccess(final CommitInfo result) {
704 ret.set(new DataYangPatchResult(
705 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), true, null)));
709 public void onFailure(final Throwable cause) {
710 // if errors occurred during transaction commit then patch failed and global errors are reported
711 ret.set(new DataYangPatchResult(
712 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false,
713 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors())));
715 }, MoreExecutors.directExecutor());
720 private void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
721 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
722 final boolean before) {
725 int lastItemPosition = 0;
726 for (var nodeChild : readList.body()) {
727 if (nodeChild.name().equals(pointArg)) {
736 int lastInsertedPosition = 0;
737 for (var nodeChild : readList.body()) {
738 if (lastInsertedPosition == lastItemPosition) {
739 tx.replace(path, data);
741 tx.replace(path.node(nodeChild.name()), nodeChild);
742 lastInsertedPosition++;
745 // In case we are inserting after last element
747 if (lastInsertedPosition == lastItemPosition) {
748 tx.replace(path, data);
753 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
754 final YangInstanceIdentifier path, final NormalizedNode data) {
756 tx.create(path, data);
757 } catch (RestconfDocumentedException e) {
758 // close transaction if any and pass exception further
767 * Check if child items do NOT already exists in List at specified {@code path}.
769 * @param data Data to be checked
770 * @param path Path to be checked
771 * @throws RestconfDocumentedException if data already exists.
773 private void checkListDataDoesNotExist(final YangInstanceIdentifier path, final NormalizedNode data) {
774 if (data instanceof NormalizedNodeContainer<?> dataNode) {
775 for (final var node : dataNode.body()) {
776 checkItemDoesNotExists(exists(path.node(node.name())), path.node(node.name()));
779 throw new RestconfDocumentedException("Unexpected node type: " + data.getClass().getName());
784 * Check if items do NOT already exists at specified {@code path}.
786 * @param existsFuture if checked data exists
787 * @param path Path to be checked
788 * @throws RestconfDocumentedException if data already exists.
790 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
791 final YangInstanceIdentifier path) {
792 if (TransactionUtil.syncAccess(existsFuture, path)) {
793 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
794 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
800 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
801 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
803 * @param apiPath Path to delete
804 * @return A {@link RestconfFuture}
805 * @throws NullPointerException if {@code apiPath} is {@code null}
807 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
808 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
811 path = pathNormalizer.normalizeDataPath(apiPath);
812 } catch (RestconfDocumentedException e) {
813 return RestconfFuture.failed(e);
816 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
817 final var ret = new SettableRestconfFuture<Empty>();
818 delete(ret, path.instance());
822 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
824 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath,
825 final DataGetParams params) {
828 path = pathNormalizer.normalizeDataPath(apiPath);
829 } catch (RestconfDocumentedException e) {
830 return RestconfFuture.failed(e);
832 return dataGET(path, params);
835 abstract @NonNull RestconfFuture<DataGetResult> dataGET(Data path, DataGetParams params);
837 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
838 final QueryParameters queryParams, final @Nullable NormalizedNode node,
839 final @Nullable ConfigurationMetadata metadata) {
841 return RestconfFuture.failed(new RestconfDocumentedException(
842 "Request could not be completed because the relevant data model content does not exist",
843 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
846 final var payload = new NormalizedNodePayload(inference, node, queryParams);
847 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
848 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
852 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
853 * inside of object {@link RestconfStrategy} provided as a parameter.
855 * @param content type of data to read (config, state, all)
856 * @param path the path to read
857 * @param defaultsMode value of with-defaults parameter
858 * @return {@link NormalizedNode}
860 // FIXME: NETCONF-1155: this method should asynchronous
862 final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
863 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
864 return switch (content) {
866 // PREPARE STATE DATA NODE
867 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
868 // PREPARE CONFIG DATA NODE
869 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
871 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
872 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
875 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
876 yield defaultsMode == null ? read
877 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
879 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
883 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
884 final YangInstanceIdentifier path) {
885 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
888 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
889 final WithDefaultsMode defaultsMode) {
890 final boolean trim = switch (defaultsMode) {
892 case Explicit -> false;
893 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
894 "Unsupported with-defaults value " + defaultsMode.getName());
897 // FIXME: we have this readily available in InstanceIdentifierContext
898 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
899 if (readData instanceof ContainerNode container) {
900 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
901 buildCont(builder, container.body(), ctxNode, trim);
902 return builder.build();
903 } else if (readData instanceof MapEntryNode mapEntry) {
904 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
905 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
908 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(mapEntry.name());
909 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
910 return builder.build();
912 throw new IllegalStateException("Unhandled data contract " + readData.contract());
916 private static void buildMapEntryBuilder(
917 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
918 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
919 final boolean trim, final List<QName> keys) {
920 for (var child : children) {
921 final var childCtx = getChildContext(ctxNode, child);
923 if (child instanceof ContainerNode container) {
924 appendContainer(builder, container, childCtx, trim);
925 } else if (child instanceof MapNode map) {
926 appendMap(builder, map, childCtx, trim);
927 } else if (child instanceof LeafNode<?> leaf) {
928 appendLeaf(builder, leaf, childCtx, trim, keys);
930 // FIXME: we should never hit this, throw an ISE if this ever happens
931 LOG.debug("Ignoring unhandled child contract {}", child.contract());
936 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
937 final DataSchemaContext ctxNode, final boolean trim) {
938 final var childBuilder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
939 buildCont(childBuilder, container.body(), ctxNode, trim);
940 builder.withChild(childBuilder.build());
943 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
944 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
945 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
946 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
949 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
950 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
952 // This is a combined check for when we need to emit the leaf.
954 // We always have to emit key leaf values
955 keys.contains(leafSchema.getQName())
956 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
958 // When data is retrieved with a <with-defaults> parameter equal to
959 // 'trim', data nodes MUST NOT be reported if they contain the schema
960 // default value. Non-configuration data nodes containing the schema
961 // default value MUST NOT be reported.
963 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
964 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
965 // grasp what we are doing here... emit only if it matches default ???!!!
966 // FIXME: The WithDefaultsParam.EXPLICIT says:
968 // Data nodes set to the YANG default by the client are reported.
970 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
972 // If the "with-defaults" parameter is set to "explicit", then the
973 // server MUST adhere to the default-reporting behavior defined in
974 // Section 3.3 of [RFC6243].
976 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
978 // When data is retrieved with a <with-defaults> parameter equal to
979 // 'explicit', a data node that was set by a client to its schema
980 // default value MUST be reported. A conceptual data node that would be
981 // set by the server to the schema default value MUST NOT be reported.
982 // Non-configuration data nodes containing the schema default value MUST
985 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
986 // This seems to disregard the 'trim = true' case semantics (see above).
987 // Combining the above, though, these checks are missing the 'non-config' check, which would
988 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
989 // Without that input, this really should be covered by the previous case.
990 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
991 builder.withChild(leaf);
995 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
996 final DataSchemaContext childCtx, final boolean trim) {
997 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
998 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
1001 final var childBuilder = switch (map.ordering()) {
1002 case SYSTEM -> ImmutableNodes.newSystemMapBuilder();
1003 case USER -> ImmutableNodes.newUserMapBuilder();
1005 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
1006 listSchema.getKeyDefinition());
1007 builder.withChild(childBuilder.build());
1010 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
1011 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
1012 final List<@NonNull QName> keys) {
1013 for (var entry : entries) {
1014 final var childCtx = getChildContext(ctxNode, entry);
1015 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(entry.name());
1016 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
1017 builder.withChild(mapEntryBuilder.build());
1021 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
1022 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
1023 for (var child : children) {
1024 final var childCtx = getChildContext(ctxNode, child);
1025 if (child instanceof ContainerNode container) {
1026 appendContainer(builder, container, childCtx, trim);
1027 } else if (child instanceof MapNode map) {
1028 appendMap(builder, map, childCtx, trim);
1029 } else if (child instanceof LeafNode<?> leaf) {
1030 appendLeaf(builder, leaf, childCtx, trim, List.of());
1035 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1036 final NormalizedNode child) {
1037 final var childId = child.name();
1038 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1040 if (childCtx == null) {
1041 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1046 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1047 final NormalizedNode configDataNode) {
1048 if (stateDataNode == null) {
1049 // No state, return config
1050 return configDataNode;
1052 if (configDataNode == null) {
1053 // No config, return state
1054 return stateDataNode;
1056 // merge config and state
1057 return mergeStateAndConfigData(stateDataNode, configDataNode);
1061 * Merge state and config data into a single NormalizedNode.
1063 * @param stateDataNode data node of state data
1064 * @param configDataNode data node of config data
1065 * @return {@link NormalizedNode}
1067 private static @NonNull NormalizedNode mergeStateAndConfigData(
1068 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1069 validateNodeMerge(stateDataNode, configDataNode);
1070 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1071 if (configDataNode instanceof RpcDefinition) {
1072 return prepareRpcData(configDataNode, stateDataNode);
1074 return prepareData(configDataNode, stateDataNode);
1079 * Validates whether the two NormalizedNodes can be merged.
1081 * @param stateDataNode data node of state data
1082 * @param configDataNode data node of config data
1084 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1085 final @NonNull NormalizedNode configDataNode) {
1086 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1087 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1088 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1089 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1094 * Prepare and map data for rpc.
1096 * @param configDataNode data node of config data
1097 * @param stateDataNode data node of state data
1098 * @return {@link NormalizedNode}
1100 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1101 final @NonNull NormalizedNode stateDataNode) {
1102 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder()
1103 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1106 mapRpcDataNode(configDataNode, mapEntryBuilder);
1108 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1110 return ImmutableNodes.newSystemMapBuilder()
1111 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1112 .addChild(mapEntryBuilder.build())
1117 * Map node to map entry builder.
1119 * @param dataNode data node
1120 * @param mapEntryBuilder builder for mapping data
1122 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1123 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1124 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1128 * Prepare and map all data from DS.
1130 * @param configDataNode data node of config data
1131 * @param stateDataNode data node of state data
1132 * @return {@link NormalizedNode}
1134 @SuppressWarnings("unchecked")
1135 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1136 final @NonNull NormalizedNode stateDataNode) {
1137 if (configDataNode instanceof UserMapNode configMap) {
1138 final var builder = ImmutableNodes.newUserMapBuilder().withNodeIdentifier(configMap.name());
1139 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1140 return builder.build();
1141 } else if (configDataNode instanceof SystemMapNode configMap) {
1142 final var builder = ImmutableNodes.newSystemMapBuilder().withNodeIdentifier(configMap.name());
1143 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1144 return builder.build();
1145 } else if (configDataNode instanceof MapEntryNode configEntry) {
1146 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(configEntry.name());
1147 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1148 return builder.build();
1149 } else if (configDataNode instanceof ContainerNode configContaienr) {
1150 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(configContaienr.name());
1151 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1152 return builder.build();
1153 } else if (configDataNode instanceof ChoiceNode configChoice) {
1154 final var builder = ImmutableNodes.newChoiceBuilder().withNodeIdentifier(configChoice.name());
1155 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1156 return builder.build();
1157 } else if (configDataNode instanceof LeafNode configLeaf) {
1158 // config trumps oper
1160 } else if (configDataNode instanceof UserLeafSetNode) {
1161 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1162 final var builder = ImmutableNodes.<Object>newUserLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1163 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1164 return builder.build();
1165 } else if (configDataNode instanceof SystemLeafSetNode) {
1166 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1167 final var builder = ImmutableNodes.<Object>newSystemLeafSetBuilder()
1168 .withNodeIdentifier(configLeafSet.name());
1169 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1170 return builder.build();
1171 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1172 // config trumps oper
1174 } else if (configDataNode instanceof UnkeyedListNode configList) {
1175 final var builder = ImmutableNodes.newUnkeyedListBuilder().withNodeIdentifier(configList.name());
1176 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1177 return builder.build();
1178 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1179 final var builder = ImmutableNodes.newUnkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1180 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1181 return builder.build();
1183 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1188 * Map value from container node to builder.
1190 * @param configData collection of config data nodes
1191 * @param stateData collection of state data nodes
1192 * @param builder builder
1194 private static <T extends NormalizedNode> void mapValueToBuilder(
1195 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1196 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1197 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1198 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1200 // merge config and state data of children with different identifiers
1201 mapDataToBuilder(configMap, stateMap, builder);
1203 // merge config and state data of children with the same identifiers
1204 mergeDataToBuilder(configMap, stateMap, builder);
1208 * Map data with different identifiers to builder. Data with different identifiers can be just added
1209 * as childs to parent node.
1211 * @param configMap map of config data nodes
1212 * @param stateMap map of state data nodes
1213 * @param builder - builder
1215 private static <T extends NormalizedNode> void mapDataToBuilder(
1216 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1217 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1218 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1219 y -> builder.addChild(y.getValue()));
1220 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1221 y -> builder.addChild(y.getValue()));
1225 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1226 * go one level down with {@code prepareData} method.
1228 * @param configMap immutable config data
1229 * @param stateMap immutable state data
1230 * @param builder - builder
1232 @SuppressWarnings("unchecked")
1233 private static <T extends NormalizedNode> void mergeDataToBuilder(
1234 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1235 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1236 // it is enough to process only config data because operational contains the same data
1237 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1238 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1241 public @NonNull RestconfFuture<OperationsGetResult> operationsGET() {
1242 final var modelContext = modelContext();
1243 final var modules = modelContext.getModuleStatements();
1244 if (modules.isEmpty()) {
1245 // No modules, or defensive return empty content
1246 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, ImmutableSetMultimap.of()));
1249 // RPC QNames by their XMLNamespace/Revision. This should be a Table, but Revision can be null, which wrecks us.
1250 final var table = new HashMap<XMLNamespace, Map<Revision, ImmutableSet<QName>>>();
1251 for (var entry : modules.entrySet()) {
1252 final var module = entry.getValue();
1253 final var rpcNames = module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
1254 .map(RpcEffectiveStatement::argument)
1255 .collect(ImmutableSet.toImmutableSet());
1256 if (!rpcNames.isEmpty()) {
1257 final var namespace = entry.getKey();
1258 table.computeIfAbsent(namespace.namespace(), ignored -> new HashMap<>())
1259 .put(namespace.revision(), rpcNames);
1263 // Now pick the latest revision for each namespace
1264 final var rpcs = ImmutableSetMultimap.<QNameModule, QName>builder();
1265 for (var entry : table.entrySet()) {
1266 entry.getValue().entrySet().stream()
1267 .sorted(Comparator.comparing(Entry::getKey, (first, second) -> Revision.compare(second, first)))
1269 .ifPresent(row -> rpcs.putAll(QNameModule.of(entry.getKey(), row.getKey()), row.getValue()));
1271 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, rpcs.build()));
1274 public @NonNull RestconfFuture<OperationsGetResult> operationsGET(final ApiPath apiPath) {
1275 if (apiPath.steps().isEmpty()) {
1276 return operationsGET();
1281 rpc = pathNormalizer.normalizeRpcPath(apiPath);
1282 } catch (RestconfDocumentedException e) {
1283 return RestconfFuture.failed(e);
1286 return RestconfFuture.of(new OperationsGetResult.Leaf(rpc.inference().modelContext(), rpc.rpc().argument()));
1289 public @NonNull RestconfFuture<InvokeResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1290 final Map<String, String> queryParameters, final OperationInputBody body) {
1293 path = pathNormalizer.normalizeRpcPath(apiPath);
1294 } catch (RestconfDocumentedException e) {
1295 return RestconfFuture.failed(e);
1298 final InvokeParams params;
1300 params = InvokeParams.ofQueryParameters(queryParameters);
1301 } catch (IllegalArgumentException e) {
1302 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1303 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1306 final ContainerNode data;
1308 data = body.toContainerNode(path);
1309 } catch (IOException e) {
1310 LOG.debug("Error reading input", e);
1311 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1312 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1315 final var type = path.rpc().argument();
1316 final var local = localRpcs.get(type);
1317 if (local != null) {
1318 return local.invoke(restconfURI, new OperationInput(path, data))
1319 .transform(output -> outputToInvokeResult(path, params, output));
1321 if (rpcService == null) {
1322 LOG.debug("RPC invocation is not available");
1323 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1324 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1327 final var ret = new SettableRestconfFuture<InvokeResult>();
1328 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1330 public void onSuccess(final DOMRpcResult response) {
1331 final var errors = response.errors();
1332 if (errors.isEmpty()) {
1333 ret.set(outputToInvokeResult(path, params, response.value()));
1335 LOG.debug("RPC invocation reported {}", response.errors());
1336 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1337 response.errors()));
1342 public void onFailure(final Throwable cause) {
1343 LOG.debug("RPC invocation failed, cause");
1344 if (cause instanceof RestconfDocumentedException ex) {
1347 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1348 ret.setFailure(new RestconfDocumentedException(cause,
1349 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1352 }, MoreExecutors.directExecutor());
1356 private static @NonNull InvokeResult outputToInvokeResult(final @NonNull OperationPath path,
1357 final @NonNull InvokeParams params, final @Nullable ContainerNode value) {
1358 return value == null || value.isEmpty() ? InvokeResult.EMPTY
1359 : new InvokeResult(new OperationOutputBody(params, path, value));
1362 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1363 final Class<? extends SourceRepresentation> representation) {
1364 final var src = requireNonNull(source);
1365 if (YangTextSource.class.isAssignableFrom(representation)) {
1366 if (sourceProvider != null) {
1367 final var ret = new SettableRestconfFuture<CharSource>();
1368 Futures.addCallback(sourceProvider.getYangTexttSource(src), new FutureCallback<>() {
1370 public void onSuccess(final YangTextSource result) {
1375 public void onFailure(final Throwable cause) {
1376 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1377 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1378 ErrorTag.OPERATION_FAILED, cause));
1380 }, MoreExecutors.directExecutor());
1383 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1385 if (YinTextSource.class.isAssignableFrom(representation)) {
1386 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1388 return RestconfFuture.failed(new RestconfDocumentedException(
1389 "Unsupported source representation " + representation.getName()));
1392 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1393 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1394 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1395 // If the source identifies a module, things are easy
1396 final var name = source.name().getLocalName();
1397 final var optRevision = Optional.ofNullable(source.revision());
1398 final var optModule = modelContext.findModule(name, optRevision);
1399 if (optModule.isPresent()) {
1400 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1403 // The source could be a submodule, which we need to hunt down
1404 for (var module : modelContext.getModules()) {
1405 for (var submodule : module.getSubmodules()) {
1406 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1407 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1408 submodule.asEffectiveStatement()));
1413 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1414 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1415 sb.append(" not found");
1416 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1417 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1420 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1421 final DataPostBody body, final Map<String, String> queryParameters) {
1422 if (apiPath.steps().isEmpty()) {
1423 return dataCreatePOST(body.toResource(), queryParameters);
1425 final InstanceReference path;
1427 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1428 } catch (RestconfDocumentedException e) {
1429 return RestconfFuture.failed(e);
1431 if (path instanceof Data dataPath) {
1432 try (var resourceBody = body.toResource()) {
1433 return dataCreatePOST(dataPath, resourceBody, queryParameters);
1436 if (path instanceof Action actionPath) {
1437 try (var inputBody = body.toOperationInput()) {
1438 return dataInvokePOST(actionPath, inputBody, queryParameters);
1441 // Note: this should never happen
1442 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1443 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1446 public @NonNull RestconfFuture<CreateResource> dataCreatePOST(final ChildBody body,
1447 final Map<String, String> queryParameters) {
1448 return dataCreatePOST(new DatabindPath.Data(databind), body, queryParameters);
1451 private @NonNull RestconfFuture<CreateResource> dataCreatePOST(final DatabindPath.Data path, final ChildBody body,
1452 final Map<String, String> queryParameters) {
1453 final Insert insert;
1455 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1456 } catch (IllegalArgumentException e) {
1457 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1458 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1461 final var payload = body.toPayload(path);
1462 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1465 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1467 for (var arg : args) {
1468 ret = ret.node(arg);
1473 private @NonNull RestconfFuture<InvokeResult> dataInvokePOST(final @NonNull Action path,
1474 final @NonNull OperationInputBody body, final Map<String, String> queryParameters) {
1475 final InvokeParams params;
1477 params = InvokeParams.ofQueryParameters(queryParameters);
1478 } catch (IllegalArgumentException e) {
1479 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1480 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1483 final ContainerNode input;
1485 input = body.toContainerNode(path);
1486 } catch (IOException e) {
1487 LOG.debug("Error reading input", e);
1488 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1489 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1492 if (actionService == null) {
1493 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1496 return dataInvokePOST(actionService, path, input)
1497 .transform(result -> outputToInvokeResult(path, params, result.getOutput().orElse(null)));
1501 * Invoke Action via ActionServiceHandler.
1503 * @param input input data
1504 * @param yangIId invocation context
1505 * @param schemaPath schema path of data
1506 * @param actionService action service to invoke action
1507 * @return {@link DOMActionResult}
1509 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1510 final Action path, final @NonNull ContainerNode input) {
1511 final var ret = new SettableRestconfFuture<DOMActionResult>();
1513 Futures.addCallback(actionService.invokeAction(
1514 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1515 DOMDataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1516 new FutureCallback<DOMActionResult>() {
1518 public void onSuccess(final DOMActionResult result) {
1519 final var errors = result.getErrors();
1520 LOG.debug("InvokeAction Error Message {}", errors);
1521 if (errors.isEmpty()) {
1524 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1529 public void onFailure(final Throwable cause) {
1530 if (cause instanceof DOMActionException) {
1531 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1532 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1533 } else if (cause instanceof RestconfDocumentedException e) {
1535 } else if (cause instanceof CancellationException) {
1536 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1537 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1539 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1542 }, MoreExecutors.directExecutor());