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.DataPostPath;
78 import org.opendaylight.restconf.server.api.DataPostResult;
79 import org.opendaylight.restconf.server.api.DataPostResult.CreateResource;
80 import org.opendaylight.restconf.server.api.DataPostResult.InvokeOperation;
81 import org.opendaylight.restconf.server.api.DataPutResult;
82 import org.opendaylight.restconf.server.api.DataYangPatchResult;
83 import org.opendaylight.restconf.server.api.DatabindContext;
84 import org.opendaylight.restconf.server.api.DatabindPath.Action;
85 import org.opendaylight.restconf.server.api.DatabindPath.Data;
86 import org.opendaylight.restconf.server.api.DatabindPath.InstanceReference;
87 import org.opendaylight.restconf.server.api.DatabindPath.Rpc;
88 import org.opendaylight.restconf.server.api.OperationInputBody;
89 import org.opendaylight.restconf.server.api.OperationsGetResult;
90 import org.opendaylight.restconf.server.api.OperationsPostPath;
91 import org.opendaylight.restconf.server.api.OperationsPostResult;
92 import org.opendaylight.restconf.server.api.PatchBody;
93 import org.opendaylight.restconf.server.api.ResourceBody;
94 import org.opendaylight.restconf.server.spi.ApiPathNormalizer;
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.spi.node.ImmutableNodes;
129 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
130 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
131 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
132 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
133 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
134 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
135 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
136 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
137 import org.opendaylight.yangtools.yang.model.api.source.SourceRepresentation;
138 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
139 import org.opendaylight.yangtools.yang.model.api.source.YinTextSource;
140 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleEffectiveStatement;
141 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
142 import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleEffectiveStatement;
143 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
144 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
145 import org.slf4j.Logger;
146 import org.slf4j.LoggerFactory;
149 * Baseline execution strategy for various RESTCONF operations.
151 * @see NetconfRestconfStrategy
152 * @see MdsalRestconfStrategy
154 // FIXME: it seems the first three operations deal with lifecycle of a transaction, while others invoke various
155 // operations. This should be handled through proper allocation indirection.
156 public abstract class RestconfStrategy {
158 public record StrategyAndPath(RestconfStrategy strategy, Data path) {
159 public StrategyAndPath {
160 requireNonNull(strategy);
161 requireNonNull(path);
166 * Result of a partial {@link ApiPath} lookup for the purposes of supporting {@code yang-ext:mount}-delimited mount
167 * points with possible nesting.
169 * @param strategy the strategy to use
170 * @param tail the {@link ApiPath} tail to use with the strategy
173 public record StrategyAndTail(RestconfStrategy strategy, ApiPath tail) {
174 public StrategyAndTail {
175 requireNonNull(strategy);
176 requireNonNull(tail);
180 private static final Logger LOG = LoggerFactory.getLogger(RestconfStrategy.class);
181 private static final @NonNull DataPutResult PUT_CREATED = new DataPutResult(true);
182 private static final @NonNull DataPutResult PUT_REPLACED = new DataPutResult(false);
183 private static final @NonNull DataPatchResult PATCH_EMPTY = new DataPatchResult();
185 private final @NonNull ImmutableMap<QName, RpcImplementation> localRpcs;
186 private final @NonNull ApiPathNormalizer pathNormalizer;
187 private final @NonNull DatabindContext databind;
188 private final YangTextSourceExtension 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 YangTextSourceExtension 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.extension(YangTextSourceExtension.class)))
254 final var netconfService = mountPoint.getService(NetconfDataTreeService.class);
255 if (netconfService.isPresent()) {
256 return new NetconfRestconfStrategy(mountDatabind, netconfService.orElseThrow(), rpcService, actionService,
257 sourceProvider, mountPointService);
259 final var dataBroker = mountPoint.getService(DOMDataBroker.class);
260 if (dataBroker.isPresent()) {
261 return new MdsalRestconfStrategy(mountDatabind, dataBroker.orElseThrow(), 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<DataPatchResult> merge(final YangInstanceIdentifier path, final NormalizedNode data) {
306 final var ret = new SettableRestconfFuture<DataPatchResult>();
307 merge(ret, requireNonNull(path), requireNonNull(data));
311 private void merge(final @NonNull SettableRestconfFuture<DataPatchResult> future,
312 final @NonNull YangInstanceIdentifier path, final @NonNull NormalizedNode data) {
313 final var tx = prepareWriteExecution();
314 // FIXME: this method should be further specialized to eliminate this call -- it is only needed for MD-SAL
315 tx.ensureParentsByMerge(path);
316 tx.merge(path, data);
317 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
319 public void onSuccess(final CommitInfo result) {
320 // TODO: extract details once CommitInfo can communicate them
321 future.set(PATCH_EMPTY);
325 public void onFailure(final Throwable cause) {
326 future.setFailure(TransactionUtil.decodeException(cause, "MERGE", path, modelContext()));
328 }, MoreExecutors.directExecutor());
331 public @NonNull RestconfFuture<DataPutResult> dataPUT(final ApiPath apiPath, final ResourceBody body,
332 final Map<String, String> queryParameters) {
335 path = pathNormalizer.normalizeDataPath(apiPath);
336 } catch (RestconfDocumentedException e) {
337 return RestconfFuture.failed(e);
342 insert = Insert.ofQueryParameters(databind, queryParameters);
343 } catch (IllegalArgumentException e) {
344 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
345 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
347 final NormalizedNode data;
349 data = body.toNormalizedNode(path);
350 } catch (RestconfDocumentedException e) {
351 return RestconfFuture.failed(e);
353 return putData(path.instance(), data, insert);
357 * Check mount point and prepare variables for put data to DS.
359 * @param path path of data
361 * @param insert {@link Insert}
362 * @return A {@link DataPutResult}
364 public final @NonNull RestconfFuture<DataPutResult> putData(final YangInstanceIdentifier path,
365 final NormalizedNode data, final @Nullable Insert insert) {
366 final var exists = TransactionUtil.syncAccess(exists(path), path);
368 final ListenableFuture<? extends CommitInfo> commitFuture;
369 if (insert != null) {
370 final var parentPath = path.coerceParent();
371 checkListAndOrderedType(parentPath);
372 commitFuture = insertAndCommitPut(path, data, insert, parentPath);
374 commitFuture = replaceAndCommit(prepareWriteExecution(), path, data);
377 final var ret = new SettableRestconfFuture<DataPutResult>();
379 Futures.addCallback(commitFuture, new FutureCallback<CommitInfo>() {
381 public void onSuccess(final CommitInfo result) {
382 ret.set(exists ? PUT_REPLACED : PUT_CREATED);
386 public void onFailure(final Throwable cause) {
387 ret.setFailure(TransactionUtil.decodeException(cause, "PUT", path, modelContext()));
389 }, MoreExecutors.directExecutor());
394 private ListenableFuture<? extends CommitInfo> insertAndCommitPut(final YangInstanceIdentifier path,
395 final NormalizedNode data, final @NonNull Insert insert, final YangInstanceIdentifier parentPath) {
396 final var tx = prepareWriteExecution();
398 return switch (insert.insert()) {
400 final var readData = tx.readList(parentPath);
401 if (readData == null || readData.isEmpty()) {
402 yield replaceAndCommit(tx, path, data);
404 tx.remove(parentPath);
405 tx.replace(path, data);
406 tx.replace(parentPath, readData);
409 case LAST -> replaceAndCommit(tx, path, data);
411 final var readData = tx.readList(parentPath);
412 if (readData == null || readData.isEmpty()) {
413 yield replaceAndCommit(tx, path, data);
415 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
419 final var readData = tx.readList(parentPath);
420 if (readData == null || readData.isEmpty()) {
421 yield replaceAndCommit(tx, path, data);
423 insertWithPointPut(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
429 private void insertWithPointPut(final RestconfTransaction tx, final YangInstanceIdentifier path,
430 final NormalizedNode data, final @NonNull PathArgument pointArg, final NormalizedNodeContainer<?> readList,
431 final boolean before) {
432 tx.remove(path.getParent());
434 int lastItemPosition = 0;
435 for (var nodeChild : readList.body()) {
436 if (nodeChild.name().equals(pointArg)) {
445 int lastInsertedPosition = 0;
446 final var emptySubtree = fromInstanceId(modelContext(), path.getParent());
447 tx.merge(YangInstanceIdentifier.of(emptySubtree.name()), emptySubtree);
448 for (var nodeChild : readList.body()) {
449 if (lastInsertedPosition == lastItemPosition) {
450 tx.replace(path, data);
452 final var childPath = path.coerceParent().node(nodeChild.name());
453 tx.replace(childPath, nodeChild);
454 lastInsertedPosition++;
457 // In case we are inserting after last element
459 if (lastInsertedPosition == lastItemPosition) {
460 tx.replace(path, data);
465 private static ListenableFuture<? extends CommitInfo> replaceAndCommit(final RestconfTransaction tx,
466 final YangInstanceIdentifier path, final NormalizedNode data) {
467 tx.replace(path, data);
471 private DataSchemaNode checkListAndOrderedType(final YangInstanceIdentifier path) {
472 // FIXME: we have this available in InstanceIdentifierContext
473 final var dataSchemaNode = databind.schemaTree().findChild(path).orElseThrow().dataSchemaNode();
475 final String message;
476 if (dataSchemaNode instanceof ListSchemaNode listSchema) {
477 if (listSchema.isUserOrdered()) {
480 message = "Insert parameter can be used only with ordered-by user list.";
481 } else if (dataSchemaNode instanceof LeafListSchemaNode leafListSchema) {
482 if (leafListSchema.isUserOrdered()) {
483 return leafListSchema;
485 message = "Insert parameter can be used only with ordered-by user leaf-list.";
487 message = "Insert parameter can be used only with list or leaf-list";
489 throw new RestconfDocumentedException(message, ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT);
493 * Check mount point and prepare variables for post data.
497 * @param insert {@link Insert}
498 * @return A {@link RestconfFuture}
500 public final @NonNull RestconfFuture<CreateResource> postData(final YangInstanceIdentifier path,
501 final NormalizedNode data, final @Nullable Insert insert) {
502 final ListenableFuture<? extends CommitInfo> future;
503 if (insert != null) {
504 checkListAndOrderedType(path);
505 future = insertAndCommitPost(path, data, insert);
507 future = createAndCommit(prepareWriteExecution(), path, data);
510 final var ret = new SettableRestconfFuture<CreateResource>();
511 Futures.addCallback(future, new FutureCallback<CommitInfo>() {
513 public void onSuccess(final CommitInfo result) {
514 ret.set(new CreateResource(new ApiPathNormalizer(databind).canonicalize(
515 data instanceof MapNode mapData && !mapData.isEmpty()
516 ? path.node(mapData.body().iterator().next().name()) : path).toString()));
520 public void onFailure(final Throwable cause) {
521 ret.setFailure(TransactionUtil.decodeException(cause, "POST", path, modelContext()));
524 }, MoreExecutors.directExecutor());
528 private ListenableFuture<? extends CommitInfo> insertAndCommitPost(final YangInstanceIdentifier path,
529 final NormalizedNode data, final @NonNull Insert insert) {
530 final var tx = prepareWriteExecution();
532 return switch (insert.insert()) {
534 final var readData = tx.readList(path);
535 if (readData == null || readData.isEmpty()) {
536 tx.replace(path, data);
538 checkListDataDoesNotExist(path, data);
540 tx.replace(path, data);
541 tx.replace(path, readData);
545 case LAST -> createAndCommit(tx, path, data);
547 final var readData = tx.readList(path);
548 if (readData == null || readData.isEmpty()) {
549 tx.replace(path, data);
551 checkListDataDoesNotExist(path, data);
552 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, true);
557 final var readData = tx.readList(path);
558 if (readData == null || readData.isEmpty()) {
559 tx.replace(path, data);
561 checkListDataDoesNotExist(path, data);
562 insertWithPointPost(tx, path, data, verifyNotNull(insert.pointArg()), readData, false);
570 * Merge data into the configuration datastore, as outlined in
571 * <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.6.1">RFC8040 section 4.6.1</a>.
573 * @param apiPath Path to merge
574 * @param body Data to merge
575 * @return A {@link RestconfFuture}
576 * @throws NullPointerException if any argument is {@code null}
578 public final @NonNull RestconfFuture<DataPatchResult> dataPATCH(final ApiPath apiPath, final ResourceBody body) {
581 path = pathNormalizer.normalizeDataPath(apiPath);
582 } catch (RestconfDocumentedException e) {
583 return RestconfFuture.failed(e);
586 final NormalizedNode data;
588 data = body.toNormalizedNode(path);
589 } catch (RestconfDocumentedException e) {
590 return RestconfFuture.failed(e);
593 return merge(path.instance(), data);
596 public final @NonNull RestconfFuture<DataYangPatchResult> dataPATCH(final ApiPath apiPath, final PatchBody body) {
599 path = pathNormalizer.normalizeDataPath(apiPath);
600 } catch (RestconfDocumentedException e) {
601 return RestconfFuture.failed(e);
604 final PatchContext patch;
606 patch = body.toPatchContext(path);
607 } catch (IOException e) {
608 LOG.debug("Error parsing YANG Patch input", e);
609 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
610 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
612 return patchData(patch);
616 * Process edit operations of one {@link PatchContext}.
618 * @param patch Patch context to be processed
619 * @return {@link PatchStatusContext}
621 public final @NonNull RestconfFuture<DataYangPatchResult> patchData(final PatchContext patch) {
622 final var editCollection = new ArrayList<PatchStatusEntity>();
623 final var tx = prepareWriteExecution();
625 boolean noError = true;
626 for (var patchEntity : patch.entities()) {
628 final var targetNode = patchEntity.getTargetNode();
629 final var editId = patchEntity.getEditId();
631 switch (patchEntity.getOperation()) {
634 tx.create(targetNode, patchEntity.getNode());
635 editCollection.add(new PatchStatusEntity(editId, true, null));
636 } catch (RestconfDocumentedException e) {
637 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
643 tx.delete(targetNode);
644 editCollection.add(new PatchStatusEntity(editId, true, null));
645 } catch (RestconfDocumentedException e) {
646 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
652 tx.ensureParentsByMerge(targetNode);
653 tx.merge(targetNode, patchEntity.getNode());
654 editCollection.add(new PatchStatusEntity(editId, true, null));
655 } catch (RestconfDocumentedException e) {
656 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
662 tx.replace(targetNode, patchEntity.getNode());
663 editCollection.add(new PatchStatusEntity(editId, true, null));
664 } catch (RestconfDocumentedException e) {
665 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
671 tx.remove(targetNode);
672 editCollection.add(new PatchStatusEntity(editId, true, null));
673 } catch (RestconfDocumentedException e) {
674 editCollection.add(new PatchStatusEntity(editId, false, e.getErrors()));
679 editCollection.add(new PatchStatusEntity(editId, false, List.of(
680 new RestconfError(ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED,
681 "Not supported Yang Patch operation"))));
690 final var ret = new SettableRestconfFuture<DataYangPatchResult>();
694 ret.set(new DataYangPatchResult(
695 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false, null)));
699 Futures.addCallback(tx.commit(), new FutureCallback<CommitInfo>() {
701 public void onSuccess(final CommitInfo result) {
702 ret.set(new DataYangPatchResult(
703 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), true, null)));
707 public void onFailure(final Throwable cause) {
708 // if errors occurred during transaction commit then patch failed and global errors are reported
709 ret.set(new DataYangPatchResult(
710 new PatchStatusContext(modelContext(), patch.patchId(), List.copyOf(editCollection), false,
711 TransactionUtil.decodeException(cause, "PATCH", null, modelContext()).getErrors())));
713 }, MoreExecutors.directExecutor());
718 private void insertWithPointPost(final RestconfTransaction tx, final YangInstanceIdentifier path,
719 final NormalizedNode data, final PathArgument pointArg, final NormalizedNodeContainer<?> readList,
720 final boolean before) {
723 int lastItemPosition = 0;
724 for (var nodeChild : readList.body()) {
725 if (nodeChild.name().equals(pointArg)) {
734 int lastInsertedPosition = 0;
735 for (var nodeChild : readList.body()) {
736 if (lastInsertedPosition == lastItemPosition) {
737 tx.replace(path, data);
739 tx.replace(path.node(nodeChild.name()), nodeChild);
740 lastInsertedPosition++;
743 // In case we are inserting after last element
745 if (lastInsertedPosition == lastItemPosition) {
746 tx.replace(path, data);
751 private static ListenableFuture<? extends CommitInfo> createAndCommit(final RestconfTransaction tx,
752 final YangInstanceIdentifier path, final NormalizedNode data) {
754 tx.create(path, data);
755 } catch (RestconfDocumentedException e) {
756 // close transaction if any and pass exception further
765 * Check if child items do NOT already exists in List at specified {@code path}.
767 * @param data Data to be checked
768 * @param path Path to be checked
769 * @throws RestconfDocumentedException if data already exists.
771 private void checkListDataDoesNotExist(final YangInstanceIdentifier path, final NormalizedNode data) {
772 if (data instanceof NormalizedNodeContainer<?> dataNode) {
773 for (final var node : dataNode.body()) {
774 checkItemDoesNotExists(exists(path.node(node.name())), path.node(node.name()));
777 throw new RestconfDocumentedException("Unexpected node type: " + data.getClass().getName());
782 * Check if items do NOT already exists at specified {@code path}.
784 * @param existsFuture if checked data exists
785 * @param path Path to be checked
786 * @throws RestconfDocumentedException if data already exists.
788 static void checkItemDoesNotExists(final ListenableFuture<Boolean> existsFuture,
789 final YangInstanceIdentifier path) {
790 if (TransactionUtil.syncAccess(existsFuture, path)) {
791 LOG.trace("Operation via Restconf was not executed because data at {} already exists", path);
792 throw new RestconfDocumentedException("Data already exists", ErrorType.PROTOCOL, ErrorTag.DATA_EXISTS,
798 * Delete data from the configuration datastore. If the data does not exist, this operation will fail, as outlined
799 * in <a href="https://www.rfc-editor.org/rfc/rfc8040#section-4.7">RFC8040 section 4.7</a>
801 * @param apiPath Path to delete
802 * @return A {@link RestconfFuture}
803 * @throws NullPointerException if {@code apiPath} is {@code null}
805 @SuppressWarnings("checkstyle:abbreviationAsWordInName")
806 public final @NonNull RestconfFuture<Empty> dataDELETE(final ApiPath apiPath) {
809 path = pathNormalizer.normalizeDataPath(apiPath);
810 } catch (RestconfDocumentedException e) {
811 return RestconfFuture.failed(e);
814 // FIXME: reject empty YangInstanceIdentifier, as datastores may not be deleted
815 final var ret = new SettableRestconfFuture<Empty>();
816 delete(ret, path.instance());
820 abstract void delete(@NonNull SettableRestconfFuture<Empty> future, @NonNull YangInstanceIdentifier path);
822 public final @NonNull RestconfFuture<DataGetResult> dataGET(final ApiPath apiPath,
823 final DataGetParams params) {
826 path = pathNormalizer.normalizeDataPath(apiPath);
827 } catch (RestconfDocumentedException e) {
828 return RestconfFuture.failed(e);
830 return dataGET(path, params);
833 abstract @NonNull RestconfFuture<DataGetResult> dataGET(Data path, DataGetParams params);
835 static final @NonNull RestconfFuture<DataGetResult> completeDataGET(final Inference inference,
836 final QueryParameters queryParams, final @Nullable NormalizedNode node,
837 final @Nullable ConfigurationMetadata metadata) {
839 return RestconfFuture.failed(new RestconfDocumentedException(
840 "Request could not be completed because the relevant data model content does not exist",
841 ErrorType.PROTOCOL, ErrorTag.DATA_MISSING));
844 final var payload = new NormalizedNodePayload(inference, node, queryParams);
845 return RestconfFuture.of(metadata == null ? new DataGetResult(payload)
846 : new DataGetResult(payload, metadata.entityTag(), metadata.lastModified()));
850 * Read specific type of data from data store via transaction. Close {@link DOMTransactionChain} if any
851 * inside of object {@link RestconfStrategy} provided as a parameter.
853 * @param content type of data to read (config, state, all)
854 * @param path the path to read
855 * @param defaultsMode value of with-defaults parameter
856 * @return {@link NormalizedNode}
858 // FIXME: NETCONF-1155: this method should asynchronous
860 final @Nullable NormalizedNode readData(final @NonNull ContentParam content,
861 final @NonNull YangInstanceIdentifier path, final WithDefaultsParam defaultsMode) {
862 return switch (content) {
864 // PREPARE STATE DATA NODE
865 final var stateDataNode = readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
866 // PREPARE CONFIG DATA NODE
867 final var configDataNode = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
869 yield mergeConfigAndSTateDataIfNeeded(stateDataNode, defaultsMode == null ? configDataNode
870 : prepareDataByParamWithDef(configDataNode, path, defaultsMode.mode()));
873 final var read = readDataViaTransaction(LogicalDatastoreType.CONFIGURATION, path);
874 yield defaultsMode == null ? read
875 : prepareDataByParamWithDef(read, path, defaultsMode.mode());
877 case NONCONFIG -> readDataViaTransaction(LogicalDatastoreType.OPERATIONAL, path);
881 private @Nullable NormalizedNode readDataViaTransaction(final LogicalDatastoreType store,
882 final YangInstanceIdentifier path) {
883 return TransactionUtil.syncAccess(read(store, path), path).orElse(null);
886 final NormalizedNode prepareDataByParamWithDef(final NormalizedNode readData, final YangInstanceIdentifier path,
887 final WithDefaultsMode defaultsMode) {
888 final boolean trim = switch (defaultsMode) {
890 case Explicit -> false;
891 case ReportAll, ReportAllTagged -> throw new RestconfDocumentedException(
892 "Unsupported with-defaults value " + defaultsMode.getName());
895 // FIXME: we have this readily available in InstanceIdentifierContext
896 final var ctxNode = databind.schemaTree().findChild(path).orElseThrow();
897 if (readData instanceof ContainerNode container) {
898 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
899 buildCont(builder, container.body(), ctxNode, trim);
900 return builder.build();
901 } else if (readData instanceof MapEntryNode mapEntry) {
902 if (!(ctxNode.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
903 throw new IllegalStateException("Input " + mapEntry + " does not match " + ctxNode);
906 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(mapEntry.name());
907 buildMapEntryBuilder(builder, mapEntry.body(), ctxNode, trim, listSchema.getKeyDefinition());
908 return builder.build();
910 throw new IllegalStateException("Unhandled data contract " + readData.contract());
914 private static void buildMapEntryBuilder(
915 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder,
916 final Collection<@NonNull DataContainerChild> children, final DataSchemaContext ctxNode,
917 final boolean trim, final List<QName> keys) {
918 for (var child : children) {
919 final var childCtx = getChildContext(ctxNode, child);
921 if (child instanceof ContainerNode container) {
922 appendContainer(builder, container, childCtx, trim);
923 } else if (child instanceof MapNode map) {
924 appendMap(builder, map, childCtx, trim);
925 } else if (child instanceof LeafNode<?> leaf) {
926 appendLeaf(builder, leaf, childCtx, trim, keys);
928 // FIXME: we should never hit this, throw an ISE if this ever happens
929 LOG.debug("Ignoring unhandled child contract {}", child.contract());
934 private static void appendContainer(final DataContainerNodeBuilder<?, ?> builder, final ContainerNode container,
935 final DataSchemaContext ctxNode, final boolean trim) {
936 final var childBuilder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(container.name());
937 buildCont(childBuilder, container.body(), ctxNode, trim);
938 builder.withChild(childBuilder.build());
941 private static void appendLeaf(final DataContainerNodeBuilder<?, ?> builder, final LeafNode<?> leaf,
942 final DataSchemaContext ctxNode, final boolean trim, final List<QName> keys) {
943 if (!(ctxNode.dataSchemaNode() instanceof LeafSchemaNode leafSchema)) {
944 throw new IllegalStateException("Input " + leaf + " does not match " + ctxNode);
947 // FIXME: Document now this works with the likes of YangInstanceIdentifier. I bet it does not.
948 final var defaultVal = leafSchema.getType().getDefaultValue().orElse(null);
950 // This is a combined check for when we need to emit the leaf.
952 // We always have to emit key leaf values
953 keys.contains(leafSchema.getQName())
954 // trim == WithDefaultsParam.TRIM and the source is assumed to store explicit values:
956 // When data is retrieved with a <with-defaults> parameter equal to
957 // 'trim', data nodes MUST NOT be reported if they contain the schema
958 // default value. Non-configuration data nodes containing the schema
959 // default value MUST NOT be reported.
961 || trim && (defaultVal == null || !defaultVal.equals(leaf.body()))
962 // !trim == WithDefaultsParam.EXPLICIT and the source is assume to store explicit values... but I fail to
963 // grasp what we are doing here... emit only if it matches default ???!!!
964 // FIXME: The WithDefaultsParam.EXPLICIT says:
966 // Data nodes set to the YANG default by the client are reported.
968 // and RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#page-60) says:
970 // If the "with-defaults" parameter is set to "explicit", then the
971 // server MUST adhere to the default-reporting behavior defined in
972 // Section 3.3 of [RFC6243].
974 // and then RFC6243 (https://www.rfc-editor.org/rfc/rfc6243#section-3.3) says:
976 // When data is retrieved with a <with-defaults> parameter equal to
977 // 'explicit', a data node that was set by a client to its schema
978 // default value MUST be reported. A conceptual data node that would be
979 // set by the server to the schema default value MUST NOT be reported.
980 // Non-configuration data nodes containing the schema default value MUST
983 // (rovarga): The source reports explicitly-defined leaves and does *not* create defaults by itself.
984 // This seems to disregard the 'trim = true' case semantics (see above).
985 // Combining the above, though, these checks are missing the 'non-config' check, which would
986 // distinguish, but barring that this check is superfluous and results in the wrong semantics.
987 // Without that input, this really should be covered by the previous case.
988 || !trim && defaultVal != null && defaultVal.equals(leaf.body())) {
989 builder.withChild(leaf);
993 private static void appendMap(final DataContainerNodeBuilder<?, ?> builder, final MapNode map,
994 final DataSchemaContext childCtx, final boolean trim) {
995 if (!(childCtx.dataSchemaNode() instanceof ListSchemaNode listSchema)) {
996 throw new IllegalStateException("Input " + map + " does not match " + childCtx);
999 final var childBuilder = switch (map.ordering()) {
1000 case SYSTEM -> ImmutableNodes.newSystemMapBuilder();
1001 case USER -> ImmutableNodes.newUserMapBuilder();
1003 buildList(childBuilder.withNodeIdentifier(map.name()), map.body(), childCtx, trim,
1004 listSchema.getKeyDefinition());
1005 builder.withChild(childBuilder.build());
1008 private static void buildList(final CollectionNodeBuilder<MapEntryNode, ? extends MapNode> builder,
1009 final Collection<@NonNull MapEntryNode> entries, final DataSchemaContext ctxNode, final boolean trim,
1010 final List<@NonNull QName> keys) {
1011 for (var entry : entries) {
1012 final var childCtx = getChildContext(ctxNode, entry);
1013 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(entry.name());
1014 buildMapEntryBuilder(mapEntryBuilder, entry.body(), childCtx, trim, keys);
1015 builder.withChild(mapEntryBuilder.build());
1019 private static void buildCont(final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> builder,
1020 final Collection<DataContainerChild> children, final DataSchemaContext ctxNode, final boolean trim) {
1021 for (var child : children) {
1022 final var childCtx = getChildContext(ctxNode, child);
1023 if (child instanceof ContainerNode container) {
1024 appendContainer(builder, container, childCtx, trim);
1025 } else if (child instanceof MapNode map) {
1026 appendMap(builder, map, childCtx, trim);
1027 } else if (child instanceof LeafNode<?> leaf) {
1028 appendLeaf(builder, leaf, childCtx, trim, List.of());
1033 private static @NonNull DataSchemaContext getChildContext(final DataSchemaContext ctxNode,
1034 final NormalizedNode child) {
1035 final var childId = child.name();
1036 final var childCtx = ctxNode instanceof DataSchemaContext.Composite composite ? composite.childByArg(childId)
1038 if (childCtx == null) {
1039 throw new NoSuchElementException("Cannot resolve child " + childId + " in " + ctxNode);
1044 static final NormalizedNode mergeConfigAndSTateDataIfNeeded(final NormalizedNode stateDataNode,
1045 final NormalizedNode configDataNode) {
1046 if (stateDataNode == null) {
1047 // No state, return config
1048 return configDataNode;
1050 if (configDataNode == null) {
1051 // No config, return state
1052 return stateDataNode;
1054 // merge config and state
1055 return mergeStateAndConfigData(stateDataNode, configDataNode);
1059 * Merge state and config data into a single NormalizedNode.
1061 * @param stateDataNode data node of state data
1062 * @param configDataNode data node of config data
1063 * @return {@link NormalizedNode}
1065 private static @NonNull NormalizedNode mergeStateAndConfigData(
1066 final @NonNull NormalizedNode stateDataNode, final @NonNull NormalizedNode configDataNode) {
1067 validateNodeMerge(stateDataNode, configDataNode);
1068 // FIXME: this check is bogus, as it confuses yang.data.api (NormalizedNode) with yang.model.api (RpcDefinition)
1069 if (configDataNode instanceof RpcDefinition) {
1070 return prepareRpcData(configDataNode, stateDataNode);
1072 return prepareData(configDataNode, stateDataNode);
1077 * Validates whether the two NormalizedNodes can be merged.
1079 * @param stateDataNode data node of state data
1080 * @param configDataNode data node of config data
1082 private static void validateNodeMerge(final @NonNull NormalizedNode stateDataNode,
1083 final @NonNull NormalizedNode configDataNode) {
1084 final QNameModule moduleOfStateData = stateDataNode.name().getNodeType().getModule();
1085 final QNameModule moduleOfConfigData = configDataNode.name().getNodeType().getModule();
1086 if (!moduleOfStateData.equals(moduleOfConfigData)) {
1087 throw new RestconfDocumentedException("Unable to merge data from different modules.");
1092 * Prepare and map data for rpc.
1094 * @param configDataNode data node of config data
1095 * @param stateDataNode data node of state data
1096 * @return {@link NormalizedNode}
1098 private static @NonNull NormalizedNode prepareRpcData(final @NonNull NormalizedNode configDataNode,
1099 final @NonNull NormalizedNode stateDataNode) {
1100 final var mapEntryBuilder = ImmutableNodes.newMapEntryBuilder()
1101 .withNodeIdentifier((NodeIdentifierWithPredicates) configDataNode.name());
1104 mapRpcDataNode(configDataNode, mapEntryBuilder);
1106 mapRpcDataNode(stateDataNode, mapEntryBuilder);
1108 return ImmutableNodes.newSystemMapBuilder()
1109 .withNodeIdentifier(NodeIdentifier.create(configDataNode.name().getNodeType()))
1110 .addChild(mapEntryBuilder.build())
1115 * Map node to map entry builder.
1117 * @param dataNode data node
1118 * @param mapEntryBuilder builder for mapping data
1120 private static void mapRpcDataNode(final @NonNull NormalizedNode dataNode,
1121 final @NonNull DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder) {
1122 ((ContainerNode) dataNode).body().forEach(mapEntryBuilder::addChild);
1126 * Prepare and map all data from DS.
1128 * @param configDataNode data node of config data
1129 * @param stateDataNode data node of state data
1130 * @return {@link NormalizedNode}
1132 @SuppressWarnings("unchecked")
1133 private static @NonNull NormalizedNode prepareData(final @NonNull NormalizedNode configDataNode,
1134 final @NonNull NormalizedNode stateDataNode) {
1135 if (configDataNode instanceof UserMapNode configMap) {
1136 final var builder = ImmutableNodes.newUserMapBuilder().withNodeIdentifier(configMap.name());
1137 mapValueToBuilder(configMap.body(), ((UserMapNode) stateDataNode).body(), builder);
1138 return builder.build();
1139 } else if (configDataNode instanceof SystemMapNode configMap) {
1140 final var builder = ImmutableNodes.newSystemMapBuilder().withNodeIdentifier(configMap.name());
1141 mapValueToBuilder(configMap.body(), ((SystemMapNode) stateDataNode).body(), builder);
1142 return builder.build();
1143 } else if (configDataNode instanceof MapEntryNode configEntry) {
1144 final var builder = ImmutableNodes.newMapEntryBuilder().withNodeIdentifier(configEntry.name());
1145 mapValueToBuilder(configEntry.body(), ((MapEntryNode) stateDataNode).body(), builder);
1146 return builder.build();
1147 } else if (configDataNode instanceof ContainerNode configContaienr) {
1148 final var builder = ImmutableNodes.newContainerBuilder().withNodeIdentifier(configContaienr.name());
1149 mapValueToBuilder(configContaienr.body(), ((ContainerNode) stateDataNode).body(), builder);
1150 return builder.build();
1151 } else if (configDataNode instanceof ChoiceNode configChoice) {
1152 final var builder = ImmutableNodes.newChoiceBuilder().withNodeIdentifier(configChoice.name());
1153 mapValueToBuilder(configChoice.body(), ((ChoiceNode) stateDataNode).body(), builder);
1154 return builder.build();
1155 } else if (configDataNode instanceof LeafNode configLeaf) {
1156 // config trumps oper
1158 } else if (configDataNode instanceof UserLeafSetNode) {
1159 final var configLeafSet = (UserLeafSetNode<Object>) configDataNode;
1160 final var builder = ImmutableNodes.<Object>newUserLeafSetBuilder().withNodeIdentifier(configLeafSet.name());
1161 mapValueToBuilder(configLeafSet.body(), ((UserLeafSetNode<Object>) stateDataNode).body(), builder);
1162 return builder.build();
1163 } else if (configDataNode instanceof SystemLeafSetNode) {
1164 final var configLeafSet = (SystemLeafSetNode<Object>) configDataNode;
1165 final var builder = ImmutableNodes.<Object>newSystemLeafSetBuilder()
1166 .withNodeIdentifier(configLeafSet.name());
1167 mapValueToBuilder(configLeafSet.body(), ((SystemLeafSetNode<Object>) stateDataNode).body(), builder);
1168 return builder.build();
1169 } else if (configDataNode instanceof LeafSetEntryNode<?> configEntry) {
1170 // config trumps oper
1172 } else if (configDataNode instanceof UnkeyedListNode configList) {
1173 final var builder = ImmutableNodes.newUnkeyedListBuilder().withNodeIdentifier(configList.name());
1174 mapValueToBuilder(configList.body(), ((UnkeyedListNode) stateDataNode).body(), builder);
1175 return builder.build();
1176 } else if (configDataNode instanceof UnkeyedListEntryNode configEntry) {
1177 final var builder = ImmutableNodes.newUnkeyedListEntryBuilder().withNodeIdentifier(configEntry.name());
1178 mapValueToBuilder(configEntry.body(), ((UnkeyedListEntryNode) stateDataNode).body(), builder);
1179 return builder.build();
1181 throw new RestconfDocumentedException("Unexpected node type: " + configDataNode.getClass().getName());
1186 * Map value from container node to builder.
1188 * @param configData collection of config data nodes
1189 * @param stateData collection of state data nodes
1190 * @param builder builder
1192 private static <T extends NormalizedNode> void mapValueToBuilder(
1193 final @NonNull Collection<T> configData, final @NonNull Collection<T> stateData,
1194 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1195 final var configMap = configData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1196 final var stateMap = stateData.stream().collect(Collectors.toMap(NormalizedNode::name, Function.identity()));
1198 // merge config and state data of children with different identifiers
1199 mapDataToBuilder(configMap, stateMap, builder);
1201 // merge config and state data of children with the same identifiers
1202 mergeDataToBuilder(configMap, stateMap, builder);
1206 * Map data with different identifiers to builder. Data with different identifiers can be just added
1207 * as childs to parent node.
1209 * @param configMap map of config data nodes
1210 * @param stateMap map of state data nodes
1211 * @param builder - builder
1213 private static <T extends NormalizedNode> void mapDataToBuilder(
1214 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1215 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1216 configMap.entrySet().stream().filter(x -> !stateMap.containsKey(x.getKey())).forEach(
1217 y -> builder.addChild(y.getValue()));
1218 stateMap.entrySet().stream().filter(x -> !configMap.containsKey(x.getKey())).forEach(
1219 y -> builder.addChild(y.getValue()));
1223 * Map data with the same identifiers to builder. Data with the same identifiers cannot be just added but we need to
1224 * go one level down with {@code prepareData} method.
1226 * @param configMap immutable config data
1227 * @param stateMap immutable state data
1228 * @param builder - builder
1230 @SuppressWarnings("unchecked")
1231 private static <T extends NormalizedNode> void mergeDataToBuilder(
1232 final @NonNull Map<PathArgument, T> configMap, final @NonNull Map<PathArgument, T> stateMap,
1233 final @NonNull NormalizedNodeContainerBuilder<?, PathArgument, T, ?> builder) {
1234 // it is enough to process only config data because operational contains the same data
1235 configMap.entrySet().stream().filter(x -> stateMap.containsKey(x.getKey())).forEach(
1236 y -> builder.addChild((T) prepareData(y.getValue(), stateMap.get(y.getKey()))));
1239 public @NonNull RestconfFuture<OperationsGetResult> operationsGET() {
1240 final var modelContext = modelContext();
1241 final var modules = modelContext.getModuleStatements();
1242 if (modules.isEmpty()) {
1243 // No modules, or defensive return empty content
1244 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, ImmutableSetMultimap.of()));
1247 // RPC QNames by their XMLNamespace/Revision. This should be a Table, but Revision can be null, which wrecks us.
1248 final var table = new HashMap<XMLNamespace, Map<Revision, ImmutableSet<QName>>>();
1249 for (var entry : modules.entrySet()) {
1250 final var module = entry.getValue();
1251 final var rpcNames = module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
1252 .map(RpcEffectiveStatement::argument)
1253 .collect(ImmutableSet.toImmutableSet());
1254 if (!rpcNames.isEmpty()) {
1255 final var namespace = entry.getKey();
1256 table.computeIfAbsent(namespace.namespace(), ignored -> new HashMap<>())
1257 .put(namespace.revision(), rpcNames);
1261 // Now pick the latest revision for each namespace
1262 final var rpcs = ImmutableSetMultimap.<QNameModule, QName>builder();
1263 for (var entry : table.entrySet()) {
1264 entry.getValue().entrySet().stream()
1265 .sorted(Comparator.comparing(Entry::getKey, (first, second) -> Revision.compare(second, first)))
1267 .ifPresent(row -> rpcs.putAll(QNameModule.of(entry.getKey(), row.getKey()), row.getValue()));
1269 return RestconfFuture.of(new OperationsGetResult.Container(modelContext, rpcs.build()));
1272 public @NonNull RestconfFuture<OperationsGetResult> operationsGET(final ApiPath apiPath) {
1273 if (apiPath.steps().isEmpty()) {
1274 return operationsGET();
1279 rpc = pathNormalizer.normalizeRpcPath(apiPath);
1280 } catch (RestconfDocumentedException e) {
1281 return RestconfFuture.failed(e);
1284 return RestconfFuture.of(new OperationsGetResult.Leaf(rpc.inference().modelContext(), rpc.rpc().argument()));
1287 public @NonNull RestconfFuture<OperationsPostResult> operationsPOST(final URI restconfURI, final ApiPath apiPath,
1288 final OperationInputBody body) {
1291 path = pathNormalizer.normalizeRpcPath(apiPath);
1292 } catch (RestconfDocumentedException e) {
1293 return RestconfFuture.failed(e);
1296 final var postPath = new OperationsPostPath(databind, path.inference());
1297 final ContainerNode data;
1299 data = body.toContainerNode(postPath);
1300 } catch (IOException e) {
1301 LOG.debug("Error reading input", e);
1302 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1303 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1306 final var type = path.rpc().argument();
1307 final var local = localRpcs.get(type);
1308 if (local != null) {
1309 return local.invoke(restconfURI, new OperationInput(databind, postPath.operation(), data));
1311 if (rpcService == null) {
1312 LOG.debug("RPC invocation is not available");
1313 return RestconfFuture.failed(new RestconfDocumentedException("RPC invocation is not available",
1314 ErrorType.PROTOCOL, ErrorTag.OPERATION_NOT_SUPPORTED));
1317 final var ret = new SettableRestconfFuture<OperationsPostResult>();
1318 Futures.addCallback(rpcService.invokeRpc(type, data), new FutureCallback<DOMRpcResult>() {
1320 public void onSuccess(final DOMRpcResult response) {
1321 final var errors = response.errors();
1322 if (errors.isEmpty()) {
1323 ret.set(new OperationsPostResult(databind, postPath.operation(), response.value()));
1325 LOG.debug("RPC invocation reported {}", response.errors());
1326 ret.setFailure(new RestconfDocumentedException("RPC implementation reported errors", null,
1327 response.errors()));
1332 public void onFailure(final Throwable cause) {
1333 LOG.debug("RPC invocation failed, cause");
1334 if (cause instanceof RestconfDocumentedException ex) {
1337 // TODO: YangNetconfErrorAware if we ever get into a broader invocation scope
1338 ret.setFailure(new RestconfDocumentedException(cause,
1339 new RestconfError(ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage())));
1342 }, MoreExecutors.directExecutor());
1346 public @NonNull RestconfFuture<CharSource> resolveSource(final SourceIdentifier source,
1347 final Class<? extends SourceRepresentation> representation) {
1348 final var src = requireNonNull(source);
1349 if (YangTextSource.class.isAssignableFrom(representation)) {
1350 if (sourceProvider != null) {
1351 final var ret = new SettableRestconfFuture<CharSource>();
1352 Futures.addCallback(sourceProvider.getYangTexttSource(src), new FutureCallback<>() {
1354 public void onSuccess(final YangTextSource result) {
1359 public void onFailure(final Throwable cause) {
1360 ret.setFailure(cause instanceof RestconfDocumentedException e ? e
1361 : new RestconfDocumentedException(cause.getMessage(), ErrorType.RPC,
1362 ErrorTag.OPERATION_FAILED, cause));
1364 }, MoreExecutors.directExecutor());
1367 return exportSource(modelContext(), src, YangCharSource::new, YangCharSource::new);
1369 if (YinTextSource.class.isAssignableFrom(representation)) {
1370 return exportSource(modelContext(), src, YinCharSource.OfModule::new, YinCharSource.OfSubmodule::new);
1372 return RestconfFuture.failed(new RestconfDocumentedException(
1373 "Unsupported source representation " + representation.getName()));
1376 private static @NonNull RestconfFuture<CharSource> exportSource(final EffectiveModelContext modelContext,
1377 final SourceIdentifier source, final Function<ModuleEffectiveStatement, CharSource> moduleCtor,
1378 final BiFunction<ModuleEffectiveStatement, SubmoduleEffectiveStatement, CharSource> submoduleCtor) {
1379 // If the source identifies a module, things are easy
1380 final var name = source.name().getLocalName();
1381 final var optRevision = Optional.ofNullable(source.revision());
1382 final var optModule = modelContext.findModule(name, optRevision);
1383 if (optModule.isPresent()) {
1384 return RestconfFuture.of(moduleCtor.apply(optModule.orElseThrow().asEffectiveStatement()));
1387 // The source could be a submodule, which we need to hunt down
1388 for (var module : modelContext.getModules()) {
1389 for (var submodule : module.getSubmodules()) {
1390 if (name.equals(submodule.getName()) && optRevision.equals(submodule.getRevision())) {
1391 return RestconfFuture.of(submoduleCtor.apply(module.asEffectiveStatement(),
1392 submodule.asEffectiveStatement()));
1397 final var sb = new StringBuilder().append("Source ").append(source.name().getLocalName());
1398 optRevision.ifPresent(rev -> sb.append('@').append(rev));
1399 sb.append(" not found");
1400 return RestconfFuture.failed(new RestconfDocumentedException(sb.toString(),
1401 ErrorType.APPLICATION, ErrorTag.DATA_MISSING));
1404 public final @NonNull RestconfFuture<? extends DataPostResult> dataPOST(final ApiPath apiPath,
1405 final DataPostBody body, final Map<String, String> queryParameters) {
1406 if (apiPath.steps().isEmpty()) {
1407 return dataCreatePOST(body.toResource(), queryParameters);
1409 final InstanceReference path;
1411 path = pathNormalizer.normalizeDataOrActionPath(apiPath);
1412 } catch (RestconfDocumentedException e) {
1413 return RestconfFuture.failed(e);
1415 if (path instanceof Data dataPath) {
1416 try (var resourceBody = body.toResource()) {
1417 return dataCreatePOST(new DataPostPath(databind, dataPath.inference(), dataPath.instance()),
1418 resourceBody, queryParameters);
1421 if (path instanceof Action actionPath) {
1422 try (var inputBody = body.toOperationInput()) {
1423 return dataInvokePOST(actionPath, inputBody);
1426 // Note: this should never happen
1427 // FIXME: we should be able to eliminate this path with Java 21+ pattern matching
1428 return RestconfFuture.failed(new RestconfDocumentedException("Unhandled path " + path));
1431 public @NonNull RestconfFuture<CreateResource> dataCreatePOST(final ChildBody body,
1432 final Map<String, String> queryParameters) {
1433 return dataCreatePOST(new DataPostPath(databind,
1434 SchemaInferenceStack.of(databind.modelContext()).toInference(), YangInstanceIdentifier.of()), body,
1438 private @NonNull RestconfFuture<CreateResource> dataCreatePOST(final DataPostPath path, final ChildBody body,
1439 final Map<String, String> queryParameters) {
1440 final Insert insert;
1442 insert = Insert.ofQueryParameters(path.databind(), queryParameters);
1443 } catch (IllegalArgumentException e) {
1444 return RestconfFuture.failed(new RestconfDocumentedException(e.getMessage(),
1445 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e));
1448 final var payload = body.toPayload(path);
1449 return postData(concat(path.instance(), payload.prefix()), payload.body(), insert);
1452 private static YangInstanceIdentifier concat(final YangInstanceIdentifier parent, final List<PathArgument> args) {
1454 for (var arg : args) {
1455 ret = ret.node(arg);
1460 private @NonNull RestconfFuture<InvokeOperation> dataInvokePOST(final Action path, final OperationInputBody body) {
1461 final var inference = path.inference();
1462 final ContainerNode input;
1464 input = body.toContainerNode(new OperationsPostPath(databind, inference));
1465 } catch (IOException e) {
1466 LOG.debug("Error reading input", e);
1467 return RestconfFuture.failed(new RestconfDocumentedException("Error parsing input: " + e.getMessage(),
1468 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE, e));
1471 if (actionService == null) {
1472 return RestconfFuture.failed(new RestconfDocumentedException("DOMActionService is missing."));
1475 final var future = dataInvokePOST(actionService, path, input);
1476 return future.transform(result -> result.getOutput()
1477 .flatMap(output -> output.isEmpty() ? Optional.empty()
1478 : Optional.of(new InvokeOperation(new NormalizedNodePayload(inference, output))))
1479 .orElse(InvokeOperation.EMPTY));
1483 * Invoke Action via ActionServiceHandler.
1485 * @param input input data
1486 * @param yangIId invocation context
1487 * @param schemaPath schema path of data
1488 * @param actionService action service to invoke action
1489 * @return {@link DOMActionResult}
1491 private static RestconfFuture<DOMActionResult> dataInvokePOST(final DOMActionService actionService,
1492 final Action path, final @NonNull ContainerNode input) {
1493 final var ret = new SettableRestconfFuture<DOMActionResult>();
1495 Futures.addCallback(actionService.invokeAction(
1496 path.inference().toSchemaInferenceStack().toSchemaNodeIdentifier(),
1497 DOMDataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, path.instance()), input),
1498 new FutureCallback<DOMActionResult>() {
1500 public void onSuccess(final DOMActionResult result) {
1501 final var errors = result.getErrors();
1502 LOG.debug("InvokeAction Error Message {}", errors);
1503 if (errors.isEmpty()) {
1506 ret.setFailure(new RestconfDocumentedException("InvokeAction Error Message ", null, errors));
1511 public void onFailure(final Throwable cause) {
1512 if (cause instanceof DOMActionException) {
1513 ret.set(new SimpleDOMActionResult(List.of(RpcResultBuilder.newError(
1514 ErrorType.RPC, ErrorTag.OPERATION_FAILED, cause.getMessage()))));
1515 } else if (cause instanceof RestconfDocumentedException e) {
1517 } else if (cause instanceof CancellationException) {
1518 ret.setFailure(new RestconfDocumentedException("Action cancelled while executing",
1519 ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, cause));
1521 ret.setFailure(new RestconfDocumentedException("Invocation failed", cause));
1524 }, MoreExecutors.directExecutor());