2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.restconf.nb.rfc8040.rests.transactions;
10 import static com.google.common.base.Verify.verifyNotNull;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.annotations.VisibleForTesting;
14 import com.google.common.collect.ImmutableMap;
15 import com.google.common.collect.ImmutableSet;
16 import com.google.common.collect.ImmutableSetMultimap;
17 import com.google.common.io.CharSource;
18 import com.google.common.util.concurrent.FutureCallback;
19 import com.google.common.util.concurrent.Futures;
20 import com.google.common.util.concurrent.ListenableFuture;
21 import com.google.common.util.concurrent.MoreExecutors;
22 import java.io.IOException;
24 import java.util.ArrayList;
25 import java.util.Collection;
26 import java.util.Comparator;
27 import java.util.HashMap;
28 import java.util.List;
30 import java.util.Map.Entry;
31 import java.util.NoSuchElementException;
32 import java.util.Optional;
33 import java.util.concurrent.CancellationException;
34 import java.util.function.BiFunction;
35 import java.util.function.Function;
36 import java.util.stream.Collectors;
37 import org.eclipse.jdt.annotation.NonNull;
38 import org.eclipse.jdt.annotation.NonNullByDefault;
39 import org.eclipse.jdt.annotation.Nullable;
40 import org.opendaylight.mdsal.common.api.CommitInfo;
41 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
42 import org.opendaylight.mdsal.dom.api.DOMActionException;
43 import org.opendaylight.mdsal.dom.api.DOMActionResult;
44 import org.opendaylight.mdsal.dom.api.DOMActionService;
45 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
46 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
47 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
48 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
49 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
50 import org.opendaylight.mdsal.dom.api.DOMRpcService;
51 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
52 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
53 import org.opendaylight.mdsal.dom.api.DOMYangTextSourceProvider;
54 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
55 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
56 import org.opendaylight.restconf.api.ApiPath;
57 import org.opendaylight.restconf.api.query.ContentParam;
58 import org.opendaylight.restconf.api.query.WithDefaultsParam;
59 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
60 import org.opendaylight.restconf.common.errors.RestconfError;
61 import org.opendaylight.restconf.common.errors.RestconfFuture;
62 import org.opendaylight.restconf.common.errors.SettableRestconfFuture;
63 import org.opendaylight.restconf.common.patch.PatchContext;
64 import org.opendaylight.restconf.common.patch.PatchStatusContext;
65 import org.opendaylight.restconf.common.patch.PatchStatusEntity;
66 import org.opendaylight.restconf.nb.rfc8040.Insert;
67 import org.opendaylight.restconf.nb.rfc8040.databind.ChildBody;
68 import org.opendaylight.restconf.nb.rfc8040.databind.DataPostBody;
69 import org.opendaylight.restconf.nb.rfc8040.databind.OperationInputBody;
70 import org.opendaylight.restconf.nb.rfc8040.databind.PatchBody;
71 import org.opendaylight.restconf.nb.rfc8040.databind.ResourceBody;
72 import org.opendaylight.restconf.nb.rfc8040.legacy.ErrorTags;
73 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
74 import org.opendaylight.restconf.nb.rfc8040.legacy.QueryParameters;
75 import org.opendaylight.restconf.nb.rfc8040.utils.parser.YangInstanceIdentifierSerializer;
76 import org.opendaylight.restconf.server.api.ConfigurationMetadata;
77 import org.opendaylight.restconf.server.api.DataGetParams;
78 import org.opendaylight.restconf.server.api.DataGetResult;
79 import org.opendaylight.restconf.server.api.DataPatchPath;
80 import org.opendaylight.restconf.server.api.DataPostPath;
81 import org.opendaylight.restconf.server.api.DataPostResult;
82 import org.opendaylight.restconf.server.api.DataPostResult.CreateResource;
83 import org.opendaylight.restconf.server.api.DataPostResult.InvokeOperation;
84 import org.opendaylight.restconf.server.api.DataPutPath;
85 import org.opendaylight.restconf.server.api.DataPutResult;
86 import org.opendaylight.restconf.server.api.DatabindContext;
87 import org.opendaylight.restconf.server.api.OperationsGetResult;
88 import org.opendaylight.restconf.server.api.OperationsPostPath;
89 import org.opendaylight.restconf.server.api.OperationsPostResult;
90 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
91 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.DataPath;
92 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.InstanceReference;
93 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.OperationPath;
94 import org.opendaylight.restconf.server.spi.ApiPathNormalizer.OperationPath.Rpc;
95 import org.opendaylight.restconf.server.spi.OperationInput;
96 import org.opendaylight.restconf.server.spi.RpcImplementation;
97 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.with.defaults.rev110601.WithDefaultsMode;
98 import org.opendaylight.yangtools.yang.common.Empty;
99 import org.opendaylight.yangtools.yang.common.ErrorTag;
100 import org.opendaylight.yangtools.yang.common.ErrorType;
101 import org.opendaylight.yangtools.yang.common.QName;
102 import org.opendaylight.yangtools.yang.common.QNameModule;
103 import org.opendaylight.yangtools.yang.common.Revision;
104 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
105 import org.opendaylight.yangtools.yang.common.XMLNamespace;
106 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
107 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
108 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
109 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
110 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
111 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
112 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
113 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
114 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
115 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
116 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
117 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
118 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
119 import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
120 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
121 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
122 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
123 import org.opendaylight.yangtools.yang.data.api.schema.UserLeafSetNode;
124 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
125 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
126 import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
127 import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeContainerBuilder;
128 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
129 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
130 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
131 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
132 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
133 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
134 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
135 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
136 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
137 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
138 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
139 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
140 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
141 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
142 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
143 import org.opendaylight.yangtools.yang.model.repo.api.YinTextSchemaSource;
144 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
145 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
146 import org.slf4j.Logger;
147 import org.slf4j.LoggerFactory;
150 * Baseline execution strategy for various RESTCONF operations.
152 * @see NetconfRestconfStrategy
153 * @see MdsalRestconfStrategy
155 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
156 // operations. This should be handled through proper allocation indirection.
157 public abstract class RestconfStrategy {
159 public record StrategyAndPath(RestconfStrategy strategy, DataPath path) {
160 public StrategyAndPath {
161 requireNonNull(strategy);
162 requireNonNull(path);
167 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
168 * points with possible nesting.
170 * @param strategy the strategy to use
171 * @param tail the {@link ApiPath} tail to use with the strategy
174 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
175 public StrategyAndTail {
176 requireNonNull(strategy);
177 requireNonNull(tail);
181 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
182 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
183 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
185 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
186 private final @NonNull ApiPathNormalizer pathNormalizer;
187 private final @NonNull DatabindContext databind;
188 private final DOMYangTextSourceProvider sourceProvider;
189 private final DOMMountPointService mountPointService;
190 private final DOMActionService actionService;
191 private final DOMRpcService rpcService;
193 RestconfStrategy(final DatabindContext databind, final ImmutableMap<QName, RpcImplementation> localRpcs,
194 final @Nullable DOMRpcService rpcService, final @Nullable DOMActionService actionService,
195 final DOMYangTextSourceProvider sourceProvider, final @Nullable DOMMountPointService mountPointService) {
196 this.databind = requireNonNull(databind);
197 this.localRpcs = requireNonNull(localRpcs);
198 this.rpcService = rpcService;
199 this.actionService = actionService;
200 this.sourceProvider = sourceProvider;
201 this.mountPointService = mountPointService;
202 pathNormalizer = new ApiPathNormalizer(databind);
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.getExtensions().getInstance(DOMYangTextSourceProvider.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(), rpcService, actionService,
262 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<Empty> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
306 final var ret = new SettableRestconfFuture<Empty>();
307 merge(ret, requireNonNull(path), requireNonNull(data));
311 private void merge(final @NonNull SettableRestconfFuture<Empty> future, final @NonNull YangInstanceIdentifier path,
312 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 future.set(Empty.value());
324 public void onFailure(final Throwable cause) {
325 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
327 }, MoreExecutors.directExecutor());
330 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
331 final Map<String, String> queryParameters) {
334 path = pathNormalizer.normalizeDataPath(apiPath);
335 } catch (RestconfDocumentedException e) {
336 return RestconfFuture.failed(e);
341 insert = Insert.ofQueryParameters(databind, queryParameters);
342 } catch (IllegalArgumentException e) {
343 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
344 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
346 final NormalizedNode data;
348 data = body.toNormalizedNode(new DataPutPath(databind, path.inference(), path.instance()));
349 } catch (RestconfDocumentedException e) {
350 return RestconfFuture.failed(e);
352 return putData(path.instance(), data, insert);
356 * Check mount point and prepare variables for put data to DS.
358 * @param path path of data
360 * @param insert {@link Insert}
361 * @return A {@link DataPutResult}
363 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
364 final NormalizedNode data, final @Nullable Insert insert) {
365 final var exists = TransactionUtil.syncAccess(exists(path), path);
367 final ListenableFuture<? extends CommitInfo> commitFuture;
368 if (insert != null) {
369 final var parentPath = path.coerceParent();
370 checkListAndOrderedType(parentPath);
371 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
373 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
376 final var ret = new SettableRestconfFuture<DataPutResult>();
378 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
380 public void onSuccess(final CommitInfo result) {
381 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
385 public void onFailure(final Throwable cause) {
386 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
388 }, MoreExecutors.directExecutor());
393 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
394 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
395 final var tx = prepareWriteExecution();
397 return switch (insert.insert()) {
399 final var readData = tx.readList(parentPath);
400 if (readData == null || readData.isEmpty()) {
401 yield replaceAndCommit(tx, path, data);
403 tx.remove(parentPath);
404 tx.replace(path, data);
405 tx.replace(parentPath, readData);
408 case LAST -> replaceAndCommit(tx, path, data);
410 final var readData = tx.readList(parentPath);
411 if (readData == null || readData.isEmpty()) {
412 yield replaceAndCommit(tx, path, data);
414 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
418 final var readData = tx.readList(parentPath);
419 if (readData == null || readData.isEmpty()) {
420 yield replaceAndCommit(tx, path, data);
422 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
428 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
429 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
430 final boolean before) {
431 tx.remove(path.getParent());
433 int lastItemPosition = 0;
434 for (var nodeChild : readList.body()) {
435 if (nodeChild.name().equals(pointArg)) {
444 int lastInsertedPosition = 0;
445 final var emptySubtree = ImmutableNodes.fromInstanceId(modelContext(), path.getParent());
446 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
447 for (var nodeChild : readList.body()) {
448 if (lastInsertedPosition == lastItemPosition) {
449 tx.replace(path, data);
451 final var childPath = path.coerceParent().node(nodeChild.name());
452 tx.replace(childPath, nodeChild);
453 lastInsertedPosition++;
457 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
458 final YangInstanceIdentifier path, final NormalizedNode data) {
459 tx.replace(path, data);
463 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
464 // FIXME: we have this available in InstanceIdentifierContext
465 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
467 final String message;
468 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
469 if (listSchema.isUserOrdered()) {
472 message = "Insert parameter can be used only with ordered-by user list.";
473 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
474 if (leafListSchema.isUserOrdered()) {
475 return leafListSchema;
477 message = "Insert parameter can be used only with ordered-by user leaf-list.";
479 message = "Insert parameter can be used only with list or leaf-list";
481 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
485 * Check mount point and prepare variables for post data.
489 * @param insert {@link Insert}
490 * @return A {@link RestconfFuture}
492 public final @NonNull RestconfFuture<CreateResource> postData(final YangInstanceIdentifier path,
493 final NormalizedNode data, final @Nullable Insert insert) {
494 final ListenableFuture<? extends CommitInfo> future;
495 if (insert != null) {
496 final var parentPath = path.coerceParent();
497 checkListAndOrderedType(parentPath);
498 future = insertAndCommitPost(path, data, insert, parentPath);
500 future = createAndCommit(prepareWriteExecution(), path, data);
503 final var ret = new SettableRestconfFuture<CreateResource>();
504 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
506 public void onSuccess(final CommitInfo result) {
507 ret.set(new CreateResource(new YangInstanceIdentifierSerializer(databind).serializePath(
508 data instanceof MapNode mapData && !mapData.isEmpty()
509 ? path.node(mapData.body().iterator().next().name()) : path)));
513 public void onFailure(final Throwable cause) {
514 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
517 }, MoreExecutors.directExecutor());
521 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
522 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parent) {
523 final var grandParent = parent.coerceParent();
524 final var tx = prepareWriteExecution();
526 return switch (insert.insert()) {
528 final var readData = tx.readList(grandParent);
529 if (readData == null || readData.isEmpty()) {
530 tx.replace(path, data);
532 checkItemDoesNotExists(exists(path), path);
533 tx.remove(grandParent);
534 tx.replace(path, data);
535 tx.replace(grandParent, readData);
539 case LAST -> createAndCommit(tx, path, data);
541 final var readData = tx.readList(grandParent);
542 if (readData == null || readData.isEmpty()) {
543 tx.replace(path, data);
545 checkItemDoesNotExists(exists(path), path);
546 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, grandParent, true);
551 final var readData = tx.readList(grandParent);
552 if (readData == null || readData.isEmpty()) {
553 tx.replace(path, data);
555 checkItemDoesNotExists(exists(path), path);
556 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, grandParent, false);
564 * Merge data into the configuration datastore, as outlined in
565 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
567 * @param apiPath Path to merge
568 * @param body Data to merge
569 * @return A {@link RestconfFuture}
570 * @throws NullPointerException if any argument is {@code null}
572 public final @NonNull RestconfFuture<Empty> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
575 path = pathNormalizer.normalizeDataPath(apiPath);
576 } catch (RestconfDocumentedException e) {
577 return RestconfFuture.failed(e);
580 final NormalizedNode data;
582 data = body.toNormalizedNode(new DataPutPath(databind, path.inference(), path.instance()));
583 } catch (RestconfDocumentedException e) {
584 return RestconfFuture.failed(e);
587 return merge(path.instance(), data);
590 public final @NonNull RestconfFuture<PatchStatusContext> dataPATCH(final ApiPath apiPath, final PatchBody body) {
593 path = pathNormalizer.normalizeDataPath(apiPath);
594 } catch (RestconfDocumentedException e) {
595 return RestconfFuture.failed(e);
598 final PatchContext patch;
600 patch = body.toPatchContext(new DataPatchPath(databind, path.instance()));
601 } catch (IOException e) {
602 LOG.debug("Error parsing YANG Patch input", e);
603 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
604 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
606 return patchData(patch);
610 * Process edit operations of one {@link PatchContext}.
612 * @param patch Patch context to be processed
613 * @return {@link PatchStatusContext}
615 public final @NonNull RestconfFuture<PatchStatusContext> patchData(final PatchContext patch) {
616 final var editCollection = new ArrayList<PatchStatusEntity>();
617 final var tx = prepareWriteExecution();
619 boolean noError = true;
620 for (var patchEntity : patch.entities()) {
622 final var targetNode = patchEntity.getTargetNode();
623 final var editId = patchEntity.getEditId();
625 switch (patchEntity.getOperation()) {
628 tx.create(targetNode, patchEntity.getNode());
629 editCollection.add(new PatchStatusEntity(editId, true, null));
630 } catch (RestconfDocumentedException e) {
631 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
637 tx.delete(targetNode);
638 editCollection.add(new PatchStatusEntity(editId, true, null));
639 } catch (RestconfDocumentedException e) {
640 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
646 tx.ensureParentsByMerge(targetNode);
647 tx.merge(targetNode, patchEntity.getNode());
648 editCollection.add(new PatchStatusEntity(editId, true, null));
649 } catch (RestconfDocumentedException e) {
650 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
656 tx.replace(targetNode, patchEntity.getNode());
657 editCollection.add(new PatchStatusEntity(editId, true, null));
658 } catch (RestconfDocumentedException e) {
659 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
665 tx.remove(targetNode);
666 editCollection.add(new PatchStatusEntity(editId, true, null));
667 } catch (RestconfDocumentedException e) {
668 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
673 editCollection.add(new PatchStatusEntity(editId, false, List.of(
674 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
675 "Not supported Yang Patch operation"))));
684 final var ret = new SettableRestconfFuture<PatchStatusContext>();
688 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false, null));
692 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
694 public void onSuccess(final CommitInfo result) {
695 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), true,
700 public void onFailure(final Throwable cause) {
701 // if errors occurred during transaction commit then patch failed and global errors are reported
702 ret.set(new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false,
703 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors()));
705 }, MoreExecutors.directExecutor());
710 private void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
711 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
712 final YangInstanceIdentifier grandParentPath, final boolean before) {
713 tx.remove(grandParentPath);
715 int lastItemPosition = 0;
716 for (var nodeChild : readList.body()) {
717 if (nodeChild.name().equals(pointArg)) {
726 int lastInsertedPosition = 0;
727 final var emptySubtree = ImmutableNodes.fromInstanceId(modelContext(), grandParentPath);
728 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
729 for (var nodeChild : readList.body()) {
730 if (lastInsertedPosition == lastItemPosition) {
731 tx.replace(path, data);
733 tx.replace(grandParentPath.node(nodeChild.name()), nodeChild);
734 lastInsertedPosition++;
738 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
739 final YangInstanceIdentifier path, final NormalizedNode data) {
741 tx.create(path, data);
742 } catch (RestconfDocumentedException e) {
743 // close transaction if any and pass exception further
752 * Check if items do NOT already exists at specified {@code path}.
754 * @param existsFuture if checked data exists
755 * @param path Path to be checked
756 * @throws RestconfDocumentedException if data already exists.
758 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
759 final YangInstanceIdentifier path) {
760 if (TransactionUtil.syncAccess(existsFuture, path)) {
761 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
762 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
768 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
769 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
771 * @param apiPath Path to delete
772 * @return A {@link RestconfFuture}
773 * @throws NullPointerException if {@code apiPath} is {@code null}
775 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
776 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
779 path = pathNormalizer.normalizeDataPath(apiPath);
780 } catch (RestconfDocumentedException e) {
781 return RestconfFuture.failed(e);
784 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
785 final var ret = new SettableRestconfFuture<Empty>();
786 delete(ret, path.instance());
790 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
792 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath,
793 final DataGetParams params) {
796 path = pathNormalizer.normalizeDataPath(apiPath);
797 } catch (RestconfDocumentedException e) {
798 return RestconfFuture.failed(e);
800 return dataGET(path, params);
803 abstract @NonNull RestconfFuture<DataGetResult> dataGET(DataPath path, DataGetParams params);
805 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
806 final QueryParameters queryParams, final @Nullable NormalizedNode node,
807 final @Nullable ConfigurationMetadata metadata) {
809 return RestconfFuture.failed(new RestconfDocumentedException(
810 "Request could not be completed because the relevant data model content does not exist",
811 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
814 final var payload = new NormalizedNodePayload(inference, node, queryParams);
815 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
816 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
820 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
821 * inside of object {@link RestconfStrategy} provided as a parameter.
823 * @param content type of data to read (config, state, all)
824 * @param path the path to read
825 * @param defaultsMode value of with-defaults parameter
826 * @return {@link NormalizedNode}
828 // FIXME: NETCONF-1155: this method should asynchronous
829 public final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
830 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
831 return switch (content) {
833 // PREPARE STATE DATA NODE
834 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
835 // PREPARE CONFIG DATA NODE
836 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
838 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
839 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
842 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
843 yield defaultsMode == null ? read
844 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
846 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
850 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
851 final YangInstanceIdentifier path) {
852 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
855 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
856 final WithDefaultsMode defaultsMode) {
857 final boolean trim = switch (defaultsMode) {
859 case Explicit -> false;
860 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
861 "Unsupported with-defaults value " + defaultsMode.getName());
864 // FIXME: we have this readily available in InstanceIdentifierContext
865 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
866 if (readData instanceof ContainerNode container) {
867 final var builder = Builders.containerBuilder().withNodeIdentifier(container.name());
868 buildCont(builder, container.body(), ctxNode, trim);
869 return builder.build();
870 } else if (readData instanceof MapEntryNode mapEntry) {
871 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
872 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
875 final var builder = Builders.mapEntryBuilder().withNodeIdentifier(mapEntry.name());
876 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
877 return builder.build();
879 throw new IllegalStateException("Unhandled data contract " + readData.contract());
883 private static void buildMapEntryBuilder(
884 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
885 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
886 final boolean trim, final List<QName> keys) {
887 for (var child : children) {
888 final var childCtx = getChildContext(ctxNode, child);
890 if (child instanceof ContainerNode container) {
891 appendContainer(builder, container, childCtx, trim);
892 } else if (child instanceof MapNode map) {
893 appendMap(builder, map, childCtx, trim);
894 } else if (child instanceof LeafNode<?> leaf) {
895 appendLeaf(builder, leaf, childCtx, trim, keys);
897 // FIXME: we should never hit this, throw an ISE if this ever happens
898 LOG.debug("Ignoring unhandled child contract {}", child.contract());
903 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
904 final DataSchemaContext ctxNode, final boolean trim) {
905 final var childBuilder = Builders.containerBuilder().withNodeIdentifier(container.name());
906 buildCont(childBuilder, container.body(), ctxNode, trim);
907 builder.withChild(childBuilder.build());
910 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
911 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
912 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
913 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
916 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
917 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
919 // This is a combined check for when we need to emit the leaf.
921 // We always have to emit key leaf values
922 keys.contains(leafSchema.getQName())
923 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
925 // When data is retrieved with a <with-defaults> parameter equal to
926 // 'trim', data nodes MUST NOT be reported if they contain the schema
927 // default value. Non-configuration data nodes containing the schema
928 // default value MUST NOT be reported.
930 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
931 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
932 // grasp what we are doing here... emit only if it matches default ???!!!
933 // FIXME: The WithDefaultsParam.EXPLICIT says:
935 // Data nodes set to the YANG default by the client are reported.
937 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
939 // If the "with-defaults" parameter is set to "explicit", then the
940 // server MUST adhere to the default-reporting behavior defined in
941 // Section 3.3 of [RFC6243].
943 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
945 // When data is retrieved with a <with-defaults> parameter equal to
946 // 'explicit', a data node that was set by a client to its schema
947 // default value MUST be reported. A conceptual data node that would be
948 // set by the server to the schema default value MUST NOT be reported.
949 // Non-configuration data nodes containing the schema default value MUST
952 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
953 // This seems to disregard the 'trim = true' case semantics (see above).
954 // Combining the above, though, these checks are missing the 'non-config' check, which would
955 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
956 // Without that input, this really should be covered by the previous case.
957 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
958 builder.withChild(leaf);
962 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
963 final DataSchemaContext childCtx, final boolean trim) {
964 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
965 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
968 final var childBuilder = switch (map.ordering()) {
969 case SYSTEM -> Builders.mapBuilder();
970 case USER -> Builders.orderedMapBuilder();
972 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
973 listSchema.getKeyDefinition());
974 builder.withChild(childBuilder.build());
977 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
978 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
979 final List<@NonNull QName> keys) {
980 for (var entry : entries) {
981 final var childCtx = getChildContext(ctxNode, entry);
982 final var mapEntryBuilder = Builders.mapEntryBuilder().withNodeIdentifier(entry.name());
983 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
984 builder.withChild(mapEntryBuilder.build());
988 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
989 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
990 for (var child : children) {
991 final var childCtx = getChildContext(ctxNode, child);
992 if (child instanceof ContainerNode container) {
993 appendContainer(builder, container, childCtx, trim);
994 } else if (child instanceof MapNode map) {
995 appendMap(builder, map, childCtx, trim);
996 } else if (child instanceof LeafNode<?> leaf) {
997 appendLeaf(builder, leaf, childCtx, trim, List.of());
1002 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1003 final NormalizedNode child) {
1004 final var childId = child.name();
1005 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1007 if (childCtx == null) {
1008 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1013 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1014 final NormalizedNode configDataNode) {
1015 // if no data exists
1016 if (stateDataNode == null && configDataNode == null) {
1020 // return config data
1021 if (stateDataNode == null) {
1022 return configDataNode;
1025 // return state data
1026 if (configDataNode == null) {
1027 return stateDataNode;
1030 // merge data from config and state
1031 return mergeStateAndConfigData(stateDataNode, configDataNode);
1035 * Merge state and config data into a single NormalizedNode.
1037 * @param stateDataNode data node of state data
1038 * @param configDataNode data node of config data
1039 * @return {@link NormalizedNode}
1041 private static @NonNull NormalizedNode mergeStateAndConfigData(
1042 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1043 validateNodeMerge(stateDataNode, configDataNode);
1044 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1045 if (configDataNode instanceof RpcDefinition) {
1046 return prepareRpcData(configDataNode, stateDataNode);
1048 return prepareData(configDataNode, stateDataNode);
1053 * Validates whether the two NormalizedNodes can be merged.
1055 * @param stateDataNode data node of state data
1056 * @param configDataNode data node of config data
1058 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1059 final @NonNull NormalizedNode configDataNode) {
1060 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1061 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1062 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1063 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1068 * Prepare and map data for rpc.
1070 * @param configDataNode data node of config data
1071 * @param stateDataNode data node of state data
1072 * @return {@link NormalizedNode}
1074 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1075 final @NonNull NormalizedNode stateDataNode) {
1076 final var mapEntryBuilder = Builders.mapEntryBuilder()
1077 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1080 mapRpcDataNode(configDataNode, mapEntryBuilder);
1082 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1084 return Builders.mapBuilder()
1085 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1086 .addChild(mapEntryBuilder.build())
1091 * Map node to map entry builder.
1093 * @param dataNode data node
1094 * @param mapEntryBuilder builder for mapping data
1096 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1097 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1098 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1102 * Prepare and map all data from DS.
1104 * @param configDataNode data node of config data
1105 * @param stateDataNode data node of state data
1106 * @return {@link NormalizedNode}
1108 @SuppressWarnings("unchecked")
1109 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1110 final @NonNull NormalizedNode stateDataNode) {
1111 if (configDataNode instanceof UserMapNode configMap) {
1112 final var builder = Builders.orderedMapBuilder().withNodeIdentifier(configMap.name());
1113 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1114 return builder.build();
1115 } else if (configDataNode instanceof SystemMapNode configMap) {
1116 final var builder = Builders.mapBuilder().withNodeIdentifier(configMap.name());
1117 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1118 return builder.build();
1119 } else if (configDataNode instanceof MapEntryNode configEntry) {
1120 final var builder = Builders.mapEntryBuilder().withNodeIdentifier(configEntry.name());
1121 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1122 return builder.build();
1123 } else if (configDataNode instanceof ContainerNode configContaienr) {
1124 final var builder = Builders.containerBuilder().withNodeIdentifier(configContaienr.name());
1125 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1126 return builder.build();
1127 } else if (configDataNode instanceof ChoiceNode configChoice) {
1128 final var builder = Builders.choiceBuilder().withNodeIdentifier(configChoice.name());
1129 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1130 return builder.build();
1131 } else if (configDataNode instanceof LeafNode configLeaf) {
1132 // config trumps oper
1134 } else if (configDataNode instanceof UserLeafSetNode) {
1135 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1136 final var builder = Builders.<Object>orderedLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1137 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1138 return builder.build();
1139 } else if (configDataNode instanceof SystemLeafSetNode) {
1140 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1141 final var builder = Builders.<Object>leafSetBuilder().withNodeIdentifier(configLeafSet.name());
1142 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1143 return builder.build();
1144 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1145 // config trumps oper
1147 } else if (configDataNode instanceof UnkeyedListNode configList) {
1148 final var builder = Builders.unkeyedListBuilder().withNodeIdentifier(configList.name());
1149 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1150 return builder.build();
1151 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1152 final var builder = Builders.unkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1153 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1154 return builder.build();
1156 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1161 * Map value from container node to builder.
1163 * @param configData collection of config data nodes
1164 * @param stateData collection of state data nodes
1165 * @param builder builder
1167 private static <T extends NormalizedNode> void mapValueToBuilder(
1168 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1169 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1170 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1171 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1173 // merge config and state data of children with different identifiers
1174 mapDataToBuilder(configMap, stateMap, builder);
1176 // merge config and state data of children with the same identifiers
1177 mergeDataToBuilder(configMap, stateMap, builder);
1181 * Map data with different identifiers to builder. Data with different identifiers can be just added
1182 * as childs to parent node.
1184 * @param configMap map of config data nodes
1185 * @param stateMap map of state data nodes
1186 * @param builder - builder
1188 private static <T extends NormalizedNode> void mapDataToBuilder(
1189 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1190 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1191 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1192 y -> builder.addChild(y.getValue()));
1193 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1194 y -> builder.addChild(y.getValue()));
1198 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1199 * go one level down with {@code prepareData} method.
1201 * @param configMap immutable config data
1202 * @param stateMap immutable state data
1203 * @param builder - builder
1205 @SuppressWarnings("unchecked")
1206 private static <T extends NormalizedNode> void mergeDataToBuilder(
1207 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1208 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1209 // it is enough to process only config data because operational contains the same data
1210 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1211 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1214 public @NonNull RestconfFuture<OperationsGetResult> operationsGET() {
1215 final var modelContext = modelContext();
1216 final var modules = modelContext.getModuleStatements();
1217 if (modules.isEmpty()) {
1218 // No modules, or defensive return empty content
1219 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, ImmutableSetMultimap.of()));
1222 // RPC QNames by their XMLNamespace/Revision. This should be a Table, but Revision can be null, which wrecks us.
1223 final var table = new HashMap<XMLNamespace, Map<Revision, ImmutableSet<QName>>>();
1224 for (var entry : modules.entrySet()) {
1225 final var module = entry.getValue();
1226 final var rpcNames = module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
1227 .map(RpcEffectiveStatement::argument)
1228 .collect(ImmutableSet.toImmutableSet());
1229 if (!rpcNames.isEmpty()) {
1230 final var namespace = entry.getKey();
1231 table.computeIfAbsent(namespace.getNamespace(), ignored -> new HashMap<>())
1232 .put(namespace.getRevision().orElse(null), rpcNames);
1236 // Now pick the latest revision for each namespace
1237 final var rpcs = ImmutableSetMultimap.<QNameModule, QName>builder();
1238 for (var entry : table.entrySet()) {
1239 entry.getValue().entrySet().stream()
1240 .sorted(Comparator.comparing(Entry::getKey, (first, second) -> Revision.compare(second, first)))
1242 .ifPresent(row -> rpcs.putAll(QNameModule.create(entry.getKey(), row.getKey()), row.getValue()));
1244 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, rpcs.build()));
1247 public @NonNull RestconfFuture<OperationsGetResult> operationsGET(final ApiPath apiPath) {
1248 if (apiPath.steps().isEmpty()) {
1249 return operationsGET();
1254 rpc = pathNormalizer.normalizeRpcPath(apiPath);
1255 } catch (RestconfDocumentedException e) {
1256 return RestconfFuture.failed(e);
1259 return RestconfFuture.of(
1260 new OperationsGetResult.Leaf(rpc.inference().getEffectiveModelContext(), rpc.rpc().argument()));
1263 public @NonNull RestconfFuture<OperationsPostResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1264 final OperationInputBody body) {
1265 final OperationPath.Rpc path;
1267 path = pathNormalizer.normalizeRpcPath(apiPath);
1268 } catch (RestconfDocumentedException e) {
1269 return RestconfFuture.failed(e);
1272 final var postPath = new OperationsPostPath(databind, path.inference());
1273 final ContainerNode data;
1275 data = body.toContainerNode(postPath);
1276 } catch (IOException e) {
1277 LOG.debug("Error reading input", e);
1278 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1279 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1282 final var type = path.rpc().argument();
1283 final var local = localRpcs.get(type);
1284 if (local != null) {
1285 return local.invoke(restconfURI, new OperationInput(databind, postPath.operation(), data));
1287 if (rpcService == null) {
1288 LOG.debug("RPC invocation is not available");
1289 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1290 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1293 final var ret = new SettableRestconfFuture<OperationsPostResult>();
1294 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1296 public void onSuccess(final DOMRpcResult response) {
1297 final var errors = response.errors();
1298 if (errors.isEmpty()) {
1299 ret.set(new OperationsPostResult(databind, postPath.operation(), response.value()));
1301 LOG.debug("RPC invocation reported {}", response.errors());
1302 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1303 response.errors()));
1308 public void onFailure(final Throwable cause) {
1309 LOG.debug("RPC invocation failed, cause");
1310 if (cause instanceof RestconfDocumentedException ex) {
1313 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1314 ret.setFailure(new RestconfDocumentedException(cause,
1315 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1318 }, MoreExecutors.directExecutor());
1322 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1323 final Class<? extends SchemaSourceRepresentation> representation) {
1324 final var src = requireNonNull(source);
1325 if (YangTextSchemaSource.class.isAssignableFrom(representation)) {
1326 if (sourceProvider != null) {
1327 final var ret = new SettableRestconfFuture<CharSource>();
1328 Futures.addCallback(sourceProvider.getSource(src), new FutureCallback<YangTextSchemaSource>() {
1330 public void onSuccess(final YangTextSchemaSource result) {
1335 public void onFailure(final Throwable cause) {
1336 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1337 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1338 ErrorTag.OPERATION_FAILED, cause));
1340 }, MoreExecutors.directExecutor());
1343 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1345 if (YinTextSchemaSource.class.isAssignableFrom(representation)) {
1346 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1348 return RestconfFuture.failed(new RestconfDocumentedException(
1349 "Unsupported source representation " + representation.getName()));
1352 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1353 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1354 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1355 // If the source identifies a module, things are easy
1356 final var name = source.name().getLocalName();
1357 final var optRevision = Optional.ofNullable(source.revision());
1358 final var optModule = modelContext.findModule(name, optRevision);
1359 if (optModule.isPresent()) {
1360 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1363 // The source could be a submodule, which we need to hunt down
1364 for (var module : modelContext.getModules()) {
1365 for (var submodule : module.getSubmodules()) {
1366 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1367 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1368 submodule.asEffectiveStatement()));
1373 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1374 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1375 sb.append(" not found");
1376 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1377 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1380 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1381 final DataPostBody body, final Map<String, String> queryParameters) {
1382 if (apiPath.steps().isEmpty()) {
1383 return dataCreatePOST(body.toResource(), queryParameters);
1385 final InstanceReference path;
1387 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1388 } catch (RestconfDocumentedException e) {
1389 return RestconfFuture.failed(e);
1391 if (path instanceof DataPath dataPath) {
1392 try (var resourceBody = body.toResource()) {
1393 return dataCreatePOST(new DataPostPath(databind, dataPath.inference(), dataPath.instance()),
1394 resourceBody, queryParameters);
1397 if (path instanceof OperationPath.Action actionPath) {
1398 try (var inputBody = body.toOperationInput()) {
1399 return dataInvokePOST(actionPath, inputBody);
1402 // Note: this should never happen
1403 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1404 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1407 public @NonNull RestconfFuture<CreateResource> dataCreatePOST(final ChildBody body,
1408 final Map<String, String> queryParameters) {
1409 return dataCreatePOST(new DataPostPath(databind,
1410 SchemaInferenceStack.of(databind.modelContext()).toInference(), YangInstanceIdentifier.of()), body,
1414 private @NonNull RestconfFuture<CreateResource> dataCreatePOST(final DataPostPath path, final ChildBody body,
1415 final Map<String, String> queryParameters) {
1416 final Insert insert;
1418 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1419 } catch (IllegalArgumentException e) {
1420 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1421 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1424 final var payload = body.toPayload(path);
1425 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1428 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1430 for (var arg : args) {
1431 ret = ret.node(arg);
1436 private @NonNull RestconfFuture<InvokeOperation> dataInvokePOST(final OperationPath.Action path,
1437 final OperationInputBody body) {
1438 final var inference = path.inference();
1439 final ContainerNode input;
1441 input = body.toContainerNode(new OperationsPostPath(databind, inference));
1442 } catch (IOException e) {
1443 LOG.debug("Error reading input", e);
1444 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1445 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1448 if (actionService == null) {
1449 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1452 final var future = dataInvokePOST(actionService, path, input);
1453 return future.transform(result -> result.getOutput()
1454 .flatMap(output -> output.isEmpty() ? Optional.empty()
1455 : Optional.of(new InvokeOperation(new NormalizedNodePayload(inference, output))))
1456 .orElse(InvokeOperation.EMPTY));
1460 * Invoke Action via ActionServiceHandler.
1462 * @param input input data
1463 * @param yangIId invocation context
1464 * @param schemaPath schema path of data
1465 * @param actionService action service to invoke action
1466 * @return {@link DOMActionResult}
1468 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1469 final OperationPath.Action path, final @NonNull ContainerNode input) {
1470 final var ret = new SettableRestconfFuture<DOMActionResult>();
1472 Futures.addCallback(actionService.invokeAction(
1473 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1474 new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1475 new FutureCallback<DOMActionResult>() {
1477 public void onSuccess(final DOMActionResult result) {
1478 final var errors = result.getErrors();
1479 LOG.debug("InvokeAction Error Message {}", errors);
1480 if (errors.isEmpty()) {
1483 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1488 public void onFailure(final Throwable cause) {
1489 if (cause instanceof DOMActionException) {
1490 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1491 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1492 } else if (cause instanceof RestconfDocumentedException e) {
1494 } else if (cause instanceof CancellationException) {
1495 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1496 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1498 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1501 }, MoreExecutors.directExecutor());