2 * Copyright (c) 2014 Cisco Systems, Inc. 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.controller.sal.restconf.impl;
10 import com.google.common.base.Function;
11 import com.google.common.base.Objects;
12 import com.google.common.base.Optional;
13 import com.google.common.base.Preconditions;
14 import com.google.common.base.Predicate;
15 import com.google.common.base.Splitter;
16 import com.google.common.base.Strings;
17 import com.google.common.collect.ImmutableMap;
18 import com.google.common.collect.Iterables;
19 import java.io.UnsupportedEncodingException;
21 import java.net.URLDecoder;
22 import java.net.URLEncoder;
23 import java.util.ArrayList;
24 import java.util.Arrays;
25 import java.util.Collection;
26 import java.util.Collections;
27 import java.util.HashMap;
28 import java.util.List;
30 import java.util.Map.Entry;
32 import java.util.concurrent.atomic.AtomicReference;
33 import javax.ws.rs.core.Response.Status;
34 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
35 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
36 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizer;
37 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
38 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
39 import org.opendaylight.controller.sal.rest.api.Draft02;
40 import org.opendaylight.controller.sal.rest.impl.RestUtil;
41 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorTag;
42 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorType;
43 import org.opendaylight.yangtools.concepts.Codec;
44 import org.opendaylight.yangtools.yang.common.QName;
45 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
46 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
47 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
48 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.InstanceIdentifierBuilder;
49 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
50 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
51 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
52 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
53 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
54 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
55 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
56 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
57 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
58 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
59 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
60 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
61 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
62 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
63 import org.opendaylight.yangtools.yang.model.api.Module;
64 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
65 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
66 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
67 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
68 import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition;
69 import org.slf4j.Logger;
70 import org.slf4j.LoggerFactory;
72 public class ControllerContext implements SchemaContextListener {
73 private final static Logger LOG = LoggerFactory.getLogger(ControllerContext.class);
75 private final static ControllerContext INSTANCE = new ControllerContext();
77 private final static String NULL_VALUE = "null";
79 private final static String MOUNT_MODULE = "yang-ext";
81 private final static String MOUNT_NODE = "mount";
83 public final static String MOUNT = "yang-ext:mount";
85 private final static String URI_ENCODING_CHAR_SET = "ISO-8859-1";
87 private static final Splitter SLASH_SPLITTER = Splitter.on('/');
89 private static final YangInstanceIdentifier ROOT = YangInstanceIdentifier.builder().build();
91 private final AtomicReference<Map<QName, RpcDefinition>> qnameToRpc =
92 new AtomicReference<>(Collections.<QName, RpcDefinition>emptyMap());
94 private volatile SchemaContext globalSchema;
95 private volatile DOMMountPointService mountService;
97 private DataNormalizer dataNormalizer;
99 public void setGlobalSchema(final SchemaContext globalSchema) {
100 this.globalSchema = globalSchema;
101 dataNormalizer = new DataNormalizer(globalSchema);
104 public void setMountService(final DOMMountPointService mountService) {
105 this.mountService = mountService;
108 private ControllerContext() {
111 public static ControllerContext getInstance() {
112 return ControllerContext.INSTANCE;
115 private void checkPreconditions() {
116 if (globalSchema == null) {
117 throw new RestconfDocumentedException(Status.SERVICE_UNAVAILABLE);
121 public void setSchemas(final SchemaContext schemas) {
122 onGlobalContextUpdated(schemas);
125 public InstanceIdentifierContext toInstanceIdentifier(final String restconfInstance) {
126 return toIdentifier(restconfInstance, false);
129 public SchemaContext getGlobalSchema() {
133 public InstanceIdentifierContext toMountPointIdentifier(final String restconfInstance) {
134 return toIdentifier(restconfInstance, true);
137 private InstanceIdentifierContext toIdentifier(final String restconfInstance, final boolean toMountPointIdentifier) {
138 checkPreconditions();
140 if(restconfInstance == null) {
141 return new InstanceIdentifierContext<>(ROOT, globalSchema, null, globalSchema);
144 final List<String> pathArgs = urlPathArgsDecode(SLASH_SPLITTER.split(restconfInstance));
145 omitFirstAndLastEmptyString(pathArgs);
146 if (pathArgs.isEmpty()) {
150 final String first = pathArgs.iterator().next();
151 final String startModule = ControllerContext.toModuleName(first);
152 if (startModule == null) {
153 throw new RestconfDocumentedException("First node in URI has to be in format \"moduleName:nodeName\"",
154 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
157 final InstanceIdentifierBuilder builder = YangInstanceIdentifier.builder();
158 final Module latestModule = globalSchema.findModuleByName(startModule, null);
159 final InstanceIdentifierContext iiWithSchemaNode = collectPathArguments(builder, pathArgs, latestModule, null,
160 toMountPointIdentifier);
162 if (iiWithSchemaNode == null) {
163 throw new RestconfDocumentedException("URI has bad format", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
166 return iiWithSchemaNode;
169 private static List<String> omitFirstAndLastEmptyString(final List<String> list) {
170 if (list.isEmpty()) {
174 final String head = list.iterator().next();
175 if (head.isEmpty()) {
179 if (list.isEmpty()) {
183 final String last = list.get(list.size() - 1);
184 if (last.isEmpty()) {
185 list.remove(list.size() - 1);
190 public Module findModuleByName(final String moduleName) {
191 checkPreconditions();
192 Preconditions.checkArgument(moduleName != null && !moduleName.isEmpty());
193 return globalSchema.findModuleByName(moduleName, null);
196 public Module findModuleByName(final DOMMountPoint mountPoint, final String moduleName) {
197 Preconditions.checkArgument(moduleName != null && mountPoint != null);
199 final SchemaContext mountPointSchema = mountPoint.getSchemaContext();
200 if (mountPointSchema == null) {
204 return mountPointSchema.findModuleByName(moduleName, null);
207 public Module findModuleByNamespace(final URI namespace) {
208 checkPreconditions();
209 Preconditions.checkArgument(namespace != null);
210 return globalSchema.findModuleByNamespaceAndRevision(namespace, null);
213 public Module findModuleByNamespace(final DOMMountPoint mountPoint, final URI namespace) {
214 Preconditions.checkArgument(namespace != null && mountPoint != null);
216 final SchemaContext mountPointSchema = mountPoint.getSchemaContext();
217 if (mountPointSchema == null) {
221 return mountPointSchema.findModuleByNamespaceAndRevision(namespace, null);
224 public Module findModuleByNameAndRevision(final QName module) {
225 checkPreconditions();
226 Preconditions.checkArgument(module != null && module.getLocalName() != null && module.getRevision() != null);
228 return globalSchema.findModuleByName(module.getLocalName(), module.getRevision());
231 public Module findModuleByNameAndRevision(final DOMMountPoint mountPoint, final QName module) {
232 checkPreconditions();
233 Preconditions.checkArgument(module != null && module.getLocalName() != null && module.getRevision() != null
234 && mountPoint != null);
236 final SchemaContext schemaContext = mountPoint.getSchemaContext();
237 return schemaContext == null ? null : schemaContext.findModuleByName(module.getLocalName(),
238 module.getRevision());
241 public DataNodeContainer getDataNodeContainerFor(final YangInstanceIdentifier path) {
242 checkPreconditions();
244 final Iterable<PathArgument> elements = path.getPathArguments();
245 final PathArgument head = elements.iterator().next();
246 final QName startQName = head.getNodeType();
247 final Module initialModule = globalSchema.findModuleByNamespaceAndRevision(startQName.getNamespace(),
248 startQName.getRevision());
249 DataNodeContainer node = initialModule;
250 for (final PathArgument element : elements) {
251 final QName _nodeType = element.getNodeType();
252 final DataSchemaNode potentialNode = ControllerContext.childByQName(node, _nodeType);
253 if (potentialNode == null || !ControllerContext.isListOrContainer(potentialNode)) {
256 node = (DataNodeContainer) potentialNode;
262 public String toFullRestconfIdentifier(final YangInstanceIdentifier path, final DOMMountPoint mount) {
263 checkPreconditions();
265 final Iterable<PathArgument> elements = path.getPathArguments();
266 final StringBuilder builder = new StringBuilder();
267 final PathArgument head = elements.iterator().next();
268 final QName startQName = head.getNodeType();
269 final SchemaContext schemaContext;
271 schemaContext = mount.getSchemaContext();
273 schemaContext = globalSchema;
275 final Module initialModule = schemaContext.findModuleByNamespaceAndRevision(startQName.getNamespace(),
276 startQName.getRevision());
277 DataNodeContainer node = initialModule;
278 for (final PathArgument element : elements) {
279 if (!(element instanceof AugmentationIdentifier)) {
280 final QName _nodeType = element.getNodeType();
281 final DataSchemaNode potentialNode = ControllerContext.childByQName(node, _nodeType);
282 if (!(element instanceof NodeIdentifier && potentialNode instanceof ListSchemaNode)) {
283 if (!ControllerContext.isListOrContainer(potentialNode)) {
286 builder.append(convertToRestconfIdentifier(element, (DataNodeContainer) potentialNode, mount));
287 node = (DataNodeContainer) potentialNode;
292 return builder.toString();
295 public String findModuleNameByNamespace(final URI namespace) {
296 checkPreconditions();
298 final Module module = this.findModuleByNamespace(namespace);
299 return module == null ? null : module.getName();
302 public String findModuleNameByNamespace(final DOMMountPoint mountPoint, final URI namespace) {
303 final Module module = this.findModuleByNamespace(mountPoint, namespace);
304 return module == null ? null : module.getName();
307 public URI findNamespaceByModuleName(final String moduleName) {
308 final Module module = this.findModuleByName(moduleName);
309 return module == null ? null : module.getNamespace();
312 public URI findNamespaceByModuleName(final DOMMountPoint mountPoint, final String moduleName) {
313 final Module module = this.findModuleByName(mountPoint, moduleName);
314 return module == null ? null : module.getNamespace();
317 public Set<Module> getAllModules(final DOMMountPoint mountPoint) {
318 checkPreconditions();
320 final SchemaContext schemaContext = mountPoint == null ? null : mountPoint.getSchemaContext();
321 return schemaContext == null ? null : schemaContext.getModules();
324 public Set<Module> getAllModules() {
325 checkPreconditions();
326 return globalSchema.getModules();
329 private static final CharSequence toRestconfIdentifier(final SchemaContext context, final QName qname) {
330 final Module schema = context.findModuleByNamespaceAndRevision(qname.getNamespace(), qname.getRevision());
331 return schema == null ? null : schema.getName() + ':' + qname.getLocalName();
334 public CharSequence toRestconfIdentifier(final QName qname, final DOMMountPoint mount) {
335 final SchemaContext schema;
337 schema = mount.getSchemaContext();
339 checkPreconditions();
340 schema = globalSchema;
343 return toRestconfIdentifier(schema, qname);
346 public CharSequence toRestconfIdentifier(final QName qname) {
347 checkPreconditions();
349 return toRestconfIdentifier(globalSchema, qname);
352 public CharSequence toRestconfIdentifier(final DOMMountPoint mountPoint, final QName qname) {
353 if (mountPoint == null) {
357 return toRestconfIdentifier(mountPoint.getSchemaContext(), qname);
360 public Module getRestconfModule() {
361 return findModuleByNameAndRevision(Draft02.RestConfModule.IETF_RESTCONF_QNAME);
364 private static final Predicate<GroupingDefinition> ERRORS_GROUPING_FILTER = new Predicate<GroupingDefinition>() {
366 public boolean apply(final GroupingDefinition g) {
367 return Draft02.RestConfModule.ERRORS_GROUPING_SCHEMA_NODE.equals(g.getQName().getLocalName());
371 public DataSchemaNode getRestconfModuleErrorsSchemaNode() {
372 final Module restconfModule = getRestconfModule();
373 if (restconfModule == null) {
377 final Set<GroupingDefinition> groupings = restconfModule.getGroupings();
379 final Iterable<GroupingDefinition> filteredGroups = Iterables.filter(groupings, ERRORS_GROUPING_FILTER);
381 final GroupingDefinition restconfGrouping = Iterables.getFirst(filteredGroups, null);
383 final List<DataSchemaNode> instanceDataChildrenByName = findInstanceDataChildrenByName(restconfGrouping,
384 Draft02.RestConfModule.ERRORS_CONTAINER_SCHEMA_NODE);
385 return Iterables.getFirst(instanceDataChildrenByName, null);
388 private static final Predicate<GroupingDefinition> GROUPING_FILTER = new Predicate<GroupingDefinition>() {
390 public boolean apply(final GroupingDefinition g) {
391 return Draft02.RestConfModule.RESTCONF_GROUPING_SCHEMA_NODE.equals(g.getQName().getLocalName());
395 public DataSchemaNode getRestconfModuleRestConfSchemaNode(final Module inRestconfModule, final String schemaNodeName) {
396 Module restconfModule = inRestconfModule;
397 if (restconfModule == null) {
398 restconfModule = getRestconfModule();
401 if (restconfModule == null) {
405 final Set<GroupingDefinition> groupings = restconfModule.getGroupings();
406 final Iterable<GroupingDefinition> filteredGroups = Iterables.filter(groupings, GROUPING_FILTER);
407 final GroupingDefinition restconfGrouping = Iterables.getFirst(filteredGroups, null);
409 final List<DataSchemaNode> instanceDataChildrenByName = findInstanceDataChildrenByName(restconfGrouping,
410 Draft02.RestConfModule.RESTCONF_CONTAINER_SCHEMA_NODE);
411 final DataSchemaNode restconfContainer = Iterables.getFirst(instanceDataChildrenByName, null);
413 if (Objects.equal(schemaNodeName, Draft02.RestConfModule.OPERATIONS_CONTAINER_SCHEMA_NODE)) {
414 final List<DataSchemaNode> instances = findInstanceDataChildrenByName(
415 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.OPERATIONS_CONTAINER_SCHEMA_NODE);
416 return Iterables.getFirst(instances, null);
417 } else if (Objects.equal(schemaNodeName, Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE)) {
418 final List<DataSchemaNode> instances = findInstanceDataChildrenByName(
419 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
420 return Iterables.getFirst(instances, null);
421 } else if (Objects.equal(schemaNodeName, Draft02.RestConfModule.STREAM_LIST_SCHEMA_NODE)) {
422 List<DataSchemaNode> instances = findInstanceDataChildrenByName(
423 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
424 final DataSchemaNode modules = Iterables.getFirst(instances, null);
425 instances = findInstanceDataChildrenByName(((DataNodeContainer) modules),
426 Draft02.RestConfModule.STREAM_LIST_SCHEMA_NODE);
427 return Iterables.getFirst(instances, null);
428 } else if (Objects.equal(schemaNodeName, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE)) {
429 final List<DataSchemaNode> instances = findInstanceDataChildrenByName(
430 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
431 return Iterables.getFirst(instances, null);
432 } else if (Objects.equal(schemaNodeName, Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE)) {
433 List<DataSchemaNode> instances = findInstanceDataChildrenByName(
434 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
435 final DataSchemaNode modules = Iterables.getFirst(instances, null);
436 instances = findInstanceDataChildrenByName(((DataNodeContainer) modules),
437 Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE);
438 return Iterables.getFirst(instances, null);
439 } else if (Objects.equal(schemaNodeName, Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE)) {
440 final List<DataSchemaNode> instances = findInstanceDataChildrenByName(
441 ((DataNodeContainer) restconfContainer), Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
442 return Iterables.getFirst(instances, null);
448 private static DataSchemaNode childByQName(final ChoiceSchemaNode container, final QName name) {
449 for (final ChoiceCaseNode caze : container.getCases()) {
450 final DataSchemaNode ret = ControllerContext.childByQName(caze, name);
459 private static DataSchemaNode childByQName(final ChoiceCaseNode container, final QName name) {
460 return container.getDataChildByName(name);
463 private static DataSchemaNode childByQName(final ContainerSchemaNode container, final QName name) {
464 return ControllerContext.dataNodeChildByQName(container, name);
467 private static DataSchemaNode childByQName(final ListSchemaNode container, final QName name) {
468 return ControllerContext.dataNodeChildByQName(container, name);
471 private static DataSchemaNode childByQName(final Module container, final QName name) {
472 return ControllerContext.dataNodeChildByQName(container, name);
475 private static DataSchemaNode childByQName(final DataSchemaNode container, final QName name) {
479 private static DataSchemaNode dataNodeChildByQName(final DataNodeContainer container, final QName name) {
480 final DataSchemaNode ret = container.getDataChildByName(name);
482 for (final DataSchemaNode node : container.getChildNodes()) {
483 if ((node instanceof ChoiceSchemaNode)) {
484 final ChoiceSchemaNode choiceNode = ((ChoiceSchemaNode) node);
485 final DataSchemaNode childByQName = ControllerContext.childByQName(choiceNode, name);
486 if (childByQName != null) {
495 private String toUriString(final Object object, final LeafSchemaNode leafNode, final DOMMountPoint mount) throws UnsupportedEncodingException {
496 final Codec<Object, Object> codec = RestCodec.from(leafNode.getType(), mount);
497 return object == null ? "" : URLEncoder.encode(codec.serialize(object).toString(), ControllerContext.URI_ENCODING_CHAR_SET);
500 private InstanceIdentifierContext collectPathArguments(final InstanceIdentifierBuilder builder,
501 final List<String> strings, final DataNodeContainer parentNode, final DOMMountPoint mountPoint,
502 final boolean returnJustMountPoint) {
503 Preconditions.<List<String>> checkNotNull(strings);
505 if (parentNode == null) {
509 if (strings.isEmpty()) {
510 return createContext(builder.toInstance(), ((DataSchemaNode) parentNode), mountPoint,mountPoint != null ? mountPoint.getSchemaContext() : globalSchema);
513 final String head = strings.iterator().next();
514 final String nodeName = toNodeName(head);
515 final String moduleName = ControllerContext.toModuleName(head);
517 DataSchemaNode targetNode = null;
518 if (!Strings.isNullOrEmpty(moduleName)) {
519 if (Objects.equal(moduleName, ControllerContext.MOUNT_MODULE)
520 && Objects.equal(nodeName, ControllerContext.MOUNT_NODE)) {
521 if (mountPoint != null) {
522 throw new RestconfDocumentedException("Restconf supports just one mount point in URI.",
523 ErrorType.APPLICATION, ErrorTag.OPERATION_NOT_SUPPORTED);
526 if (mountService == null) {
527 throw new RestconfDocumentedException(
528 "MountService was not found. Finding behind mount points does not work.",
529 ErrorType.APPLICATION, ErrorTag.OPERATION_NOT_SUPPORTED);
532 final YangInstanceIdentifier partialPath = dataNormalizer.toNormalized(builder.build());
533 final Optional<DOMMountPoint> mountOpt = mountService.getMountPoint(partialPath);
534 if (!mountOpt.isPresent()) {
535 LOG.debug("Instance identifier to missing mount point: {}", partialPath);
536 throw new RestconfDocumentedException("Mount point does not exist.", ErrorType.PROTOCOL,
537 ErrorTag.UNKNOWN_ELEMENT);
539 final DOMMountPoint mount = mountOpt.get();
541 final SchemaContext mountPointSchema = mount.getSchemaContext();
542 if (mountPointSchema == null) {
543 throw new RestconfDocumentedException("Mount point does not contain any schema with modules.",
544 ErrorType.APPLICATION, ErrorTag.UNKNOWN_ELEMENT);
547 if (returnJustMountPoint || strings.size() == 1) {
548 final YangInstanceIdentifier instance = YangInstanceIdentifier.builder().toInstance();
549 return new InstanceIdentifierContext(instance, mountPointSchema, mount,mountPointSchema);
552 final String moduleNameBehindMountPoint = toModuleName(strings.get(1));
553 if (moduleNameBehindMountPoint == null) {
554 throw new RestconfDocumentedException(
555 "First node after mount point in URI has to be in format \"moduleName:nodeName\"",
556 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
559 final Module moduleBehindMountPoint = mountPointSchema.findModuleByName(moduleNameBehindMountPoint, null);
560 if (moduleBehindMountPoint == null) {
561 throw new RestconfDocumentedException("\"" + moduleName
562 + "\" module does not exist in mount point.", ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
565 final List<String> subList = strings.subList(1, strings.size());
566 return collectPathArguments(YangInstanceIdentifier.builder(), subList, moduleBehindMountPoint, mount,
567 returnJustMountPoint);
570 Module module = null;
571 if (mountPoint == null) {
572 checkPreconditions();
573 module = globalSchema.findModuleByName(moduleName, null);
574 if (module == null) {
575 throw new RestconfDocumentedException("\"" + moduleName + "\" module does not exist.",
576 ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
579 final SchemaContext schemaContext = mountPoint.getSchemaContext();
580 if (schemaContext != null) {
581 module = schemaContext.findModuleByName(moduleName, null);
585 if (module == null) {
586 throw new RestconfDocumentedException("\"" + moduleName
587 + "\" module does not exist in mount point.", ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
591 targetNode = findInstanceDataChildByNameAndNamespace(parentNode, nodeName, module.getNamespace());
593 if (targetNode == null && parentNode instanceof Module) {
594 final RpcDefinition rpc = ControllerContext.getInstance().getRpcDefinition(head);
596 return new InstanceIdentifierContext<RpcDefinition>(builder.build(), rpc, mountPoint,
597 mountPoint != null ? mountPoint.getSchemaContext() : globalSchema);
601 if (targetNode == null) {
602 throw new RestconfDocumentedException("URI has bad format. Possible reasons:\n" + " 1. \"" + head
603 + "\" was not found in parent data node.\n" + " 2. \"" + head
604 + "\" is behind mount point. Then it should be in format \"/" + MOUNT + "/" + head + "\".",
605 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
608 final List<DataSchemaNode> potentialSchemaNodes = findInstanceDataChildrenByName(parentNode, nodeName);
609 if (potentialSchemaNodes.size() > 1) {
610 final StringBuilder strBuilder = new StringBuilder();
611 for (final DataSchemaNode potentialNodeSchema : potentialSchemaNodes) {
612 strBuilder.append(" ").append(potentialNodeSchema.getQName().getNamespace()).append("\n");
615 throw new RestconfDocumentedException(
616 "URI has bad format. Node \""
618 + "\" is added as augment from more than one module. "
619 + "Therefore the node must have module name and it has to be in format \"moduleName:nodeName\"."
620 + "\nThe node is added as augment from modules with namespaces:\n"
621 + strBuilder.toString(), ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
624 if (potentialSchemaNodes.isEmpty()) {
625 throw new RestconfDocumentedException("\"" + nodeName + "\" in URI was not found in parent data node",
626 ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
629 targetNode = potentialSchemaNodes.iterator().next();
632 if (!ControllerContext.isListOrContainer(targetNode)) {
633 throw new RestconfDocumentedException("URI has bad format. Node \"" + head
634 + "\" must be Container or List yang type.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
638 if ((targetNode instanceof ListSchemaNode)) {
639 final ListSchemaNode listNode = ((ListSchemaNode) targetNode);
640 final int keysSize = listNode.getKeyDefinition().size();
641 if ((strings.size() - consumed) < keysSize) {
642 throw new RestconfDocumentedException("Missing key for list \"" + listNode.getQName().getLocalName()
643 + "\".", ErrorType.PROTOCOL, ErrorTag.DATA_MISSING);
646 final List<String> uriKeyValues = strings.subList(consumed, consumed + keysSize);
647 final HashMap<QName, Object> keyValues = new HashMap<QName, Object>();
649 for (final QName key : listNode.getKeyDefinition()) {
651 final String uriKeyValue = uriKeyValues.get(i);
652 if (uriKeyValue.equals(NULL_VALUE)) {
653 throw new RestconfDocumentedException("URI has bad format. List \""
654 + listNode.getQName().getLocalName() + "\" cannot contain \"null\" value as a key.",
655 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
658 addKeyValue(keyValues, listNode.getDataChildByName(key), uriKeyValue, mountPoint);
663 consumed = consumed + i;
664 builder.nodeWithKey(targetNode.getQName(), keyValues);
666 builder.node(targetNode.getQName());
669 if ((targetNode instanceof DataNodeContainer)) {
670 final List<String> remaining = strings.subList(consumed, strings.size());
671 return collectPathArguments(builder, remaining, ((DataNodeContainer) targetNode), mountPoint,
672 returnJustMountPoint);
675 return createContext(builder.build(), targetNode, mountPoint,mountPoint != null ? mountPoint.getSchemaContext() : globalSchema);
678 private InstanceIdentifierContext createContext(final YangInstanceIdentifier instance, final DataSchemaNode dataSchemaNode,
679 final DOMMountPoint mountPoint, final SchemaContext schemaContext) {
681 final YangInstanceIdentifier instanceIdentifier = new DataNormalizer(schemaContext).toNormalized(instance);
682 return new InstanceIdentifierContext(instanceIdentifier, dataSchemaNode, mountPoint,schemaContext);
685 public static DataSchemaNode findInstanceDataChildByNameAndNamespace(final DataNodeContainer container, final String name,
686 final URI namespace) {
687 Preconditions.<URI> checkNotNull(namespace);
689 final List<DataSchemaNode> potentialSchemaNodes = findInstanceDataChildrenByName(container, name);
691 final Predicate<DataSchemaNode> filter = new Predicate<DataSchemaNode>() {
693 public boolean apply(final DataSchemaNode node) {
694 return Objects.equal(node.getQName().getNamespace(), namespace);
698 final Iterable<DataSchemaNode> result = Iterables.filter(potentialSchemaNodes, filter);
699 return Iterables.getFirst(result, null);
702 public static List<DataSchemaNode> findInstanceDataChildrenByName(final DataNodeContainer container, final String name) {
703 Preconditions.<DataNodeContainer> checkNotNull(container);
704 Preconditions.<String> checkNotNull(name);
706 final List<DataSchemaNode> instantiatedDataNodeContainers = new ArrayList<DataSchemaNode>();
707 collectInstanceDataNodeContainers(instantiatedDataNodeContainers, container, name);
708 return instantiatedDataNodeContainers;
711 private static final Function<ChoiceSchemaNode, Set<ChoiceCaseNode>> CHOICE_FUNCTION = new Function<ChoiceSchemaNode, Set<ChoiceCaseNode>>() {
713 public Set<ChoiceCaseNode> apply(final ChoiceSchemaNode node) {
714 return node.getCases();
718 private static void collectInstanceDataNodeContainers(final List<DataSchemaNode> potentialSchemaNodes,
719 final DataNodeContainer container, final String name) {
721 final Predicate<DataSchemaNode> filter = new Predicate<DataSchemaNode>() {
723 public boolean apply(final DataSchemaNode node) {
724 return Objects.equal(node.getQName().getLocalName(), name);
728 final Iterable<DataSchemaNode> nodes = Iterables.filter(container.getChildNodes(), filter);
730 // Can't combine this loop with the filter above because the filter is
731 // lazily-applied by Iterables.filter.
732 for (final DataSchemaNode potentialNode : nodes) {
733 if (isInstantiatedDataSchema(potentialNode)) {
734 potentialSchemaNodes.add(potentialNode);
738 final Iterable<ChoiceSchemaNode> choiceNodes = Iterables.filter(container.getChildNodes(), ChoiceSchemaNode.class);
739 final Iterable<Set<ChoiceCaseNode>> map = Iterables.transform(choiceNodes, CHOICE_FUNCTION);
741 final Iterable<ChoiceCaseNode> allCases = Iterables.<ChoiceCaseNode> concat(map);
742 for (final ChoiceCaseNode caze : allCases) {
743 collectInstanceDataNodeContainers(potentialSchemaNodes, caze, name);
747 public static boolean isInstantiatedDataSchema(final DataSchemaNode node) {
748 return node instanceof LeafSchemaNode || node instanceof LeafListSchemaNode
749 || node instanceof ContainerSchemaNode || node instanceof ListSchemaNode
750 || node instanceof AnyXmlSchemaNode;
753 private void addKeyValue(final HashMap<QName, Object> map, final DataSchemaNode node, final String uriValue,
754 final DOMMountPoint mountPoint) {
755 Preconditions.<String> checkNotNull(uriValue);
756 Preconditions.checkArgument((node instanceof LeafSchemaNode));
758 final String urlDecoded = urlPathArgDecode(uriValue);
759 final TypeDefinition<? extends Object> typedef = ((LeafSchemaNode) node).getType();
760 final Codec<Object, Object> codec = RestCodec.from(typedef, mountPoint);
762 Object decoded = codec == null ? null : codec.deserialize(urlDecoded);
763 String additionalInfo = "";
764 if (decoded == null) {
765 final TypeDefinition<? extends Object> baseType = RestUtil.resolveBaseTypeFrom(typedef);
766 if ((baseType instanceof IdentityrefTypeDefinition)) {
767 decoded = toQName(urlDecoded);
768 additionalInfo = "For key which is of type identityref it should be in format module_name:identity_name.";
772 if (decoded == null) {
773 throw new RestconfDocumentedException(uriValue + " from URI can't be resolved. " + additionalInfo,
774 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
777 map.put(node.getQName(), decoded);
780 private static String toModuleName(final String str) {
781 final int idx = str.indexOf(':');
786 // Make sure there is only one occurrence
787 if (str.indexOf(':', idx + 1) != -1) {
791 return str.substring(0, idx);
794 private static String toNodeName(final String str) {
795 final int idx = str.indexOf(':');
800 // Make sure there is only one occurrence
801 if (str.indexOf(':', idx + 1) != -1) {
805 return str.substring(idx + 1);
808 private QName toQName(final String name) {
809 checkPreconditions();
810 final String module = toModuleName(name);
811 final String node = toNodeName(name);
812 final Module m = globalSchema.findModuleByName(module, null);
813 return m == null ? null : QName.create(m.getQNameModule(), node);
816 private static boolean isListOrContainer(final DataSchemaNode node) {
817 return node instanceof ListSchemaNode || node instanceof ContainerSchemaNode;
820 public RpcDefinition getRpcDefinition(final String name) {
821 final QName validName = toQName(name);
822 return validName == null ? null : qnameToRpc.get().get(validName);
826 public void onGlobalContextUpdated(final SchemaContext context) {
827 if (context != null) {
828 final Collection<RpcDefinition> defs = context.getOperations();
829 final Map<QName, RpcDefinition> newMap = new HashMap<>(defs.size());
831 for (final RpcDefinition operation : defs) {
832 newMap.put(operation.getQName(), operation);
835 // FIXME: still not completely atomic
836 qnameToRpc.set(ImmutableMap.copyOf(newMap));
837 setGlobalSchema(context);
841 public static List<String> urlPathArgsDecode(final Iterable<String> strings) {
843 final List<String> decodedPathArgs = new ArrayList<String>();
844 for (final String pathArg : strings) {
845 final String _decode = URLDecoder.decode(pathArg, URI_ENCODING_CHAR_SET);
846 decodedPathArgs.add(_decode);
848 return decodedPathArgs;
849 } catch (final UnsupportedEncodingException e) {
850 throw new RestconfDocumentedException("Invalid URL path '" + strings + "': " + e.getMessage(),
851 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
855 public String urlPathArgDecode(final String pathArg) {
856 if (pathArg != null) {
858 return URLDecoder.decode(pathArg, URI_ENCODING_CHAR_SET);
859 } catch (final UnsupportedEncodingException e) {
860 throw new RestconfDocumentedException("Invalid URL path arg '" + pathArg + "': " + e.getMessage(),
861 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
868 private CharSequence convertToRestconfIdentifier(final PathArgument argument, final DataNodeContainer node, final DOMMountPoint mount) {
869 if (argument instanceof NodeIdentifier && node instanceof ContainerSchemaNode) {
870 return convertToRestconfIdentifier((NodeIdentifier) argument, mount);
871 } else if (argument instanceof NodeIdentifierWithPredicates && node instanceof ListSchemaNode) {
872 return convertToRestconfIdentifierWithPredicates((NodeIdentifierWithPredicates) argument, (ListSchemaNode) node, mount);
873 } else if (argument != null && node != null) {
874 throw new IllegalArgumentException("Conversion of generic path argument is not supported");
876 throw new IllegalArgumentException("Unhandled parameter types: "
877 + Arrays.<Object> asList(argument, node).toString());
881 private CharSequence convertToRestconfIdentifier(final NodeIdentifier argument, final DOMMountPoint node) {
882 return "/" + this.toRestconfIdentifier(argument.getNodeType(),node);
885 private CharSequence convertToRestconfIdentifierWithPredicates(final NodeIdentifierWithPredicates argument,
886 final ListSchemaNode node, final DOMMountPoint mount) {
887 final QName nodeType = argument.getNodeType();
888 final CharSequence nodeIdentifier = this.toRestconfIdentifier(nodeType, mount);
889 final Map<QName, Object> keyValues = argument.getKeyValues();
891 final StringBuilder builder = new StringBuilder();
893 builder.append(nodeIdentifier);
896 final List<QName> keyDefinition = node.getKeyDefinition();
897 boolean hasElements = false;
898 for (final QName key : keyDefinition) {
899 for (final DataSchemaNode listChild : node.getChildNodes()) {
900 if (listChild.getQName().equals(key)) {
908 Preconditions.checkState(listChild instanceof LeafSchemaNode, "List key has to consist of leaves");
909 builder.append(toUriString(keyValues.get(key), (LeafSchemaNode)listChild, mount));
910 } catch (final UnsupportedEncodingException e) {
911 LOG.error("Error parsing URI: {}", keyValues.get(key), e);
919 return builder.toString();
922 private static DataSchemaNode childByQName(final Object container, final QName name) {
923 if (container instanceof ChoiceCaseNode) {
924 return childByQName((ChoiceCaseNode) container, name);
925 } else if (container instanceof ChoiceSchemaNode) {
926 return childByQName((ChoiceSchemaNode) container, name);
927 } else if (container instanceof ContainerSchemaNode) {
928 return childByQName((ContainerSchemaNode) container, name);
929 } else if (container instanceof ListSchemaNode) {
930 return childByQName((ListSchemaNode) container, name);
931 } else if (container instanceof DataSchemaNode) {
932 return childByQName((DataSchemaNode) container, name);
933 } else if (container instanceof Module) {
934 return childByQName((Module) container, name);
936 throw new IllegalArgumentException("Unhandled parameter types: "
937 + Arrays.<Object> asList(container, name).toString());
941 public Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> toNormalized(final YangInstanceIdentifier legacy,
942 final CompositeNode compositeNode) {
944 return dataNormalizer.toNormalized(legacy, compositeNode);
945 } catch (final NullPointerException e) {
946 throw new RestconfDocumentedException("Data normalizer isn't set. Normalization isn't possible", e);
950 public YangInstanceIdentifier toNormalized(final YangInstanceIdentifier legacy) {
952 return dataNormalizer.toNormalized(legacy);
953 } catch (final NullPointerException e) {
954 throw new RestconfDocumentedException("Data normalizer isn't set. Normalization isn't possible", e);
958 public CompositeNode toLegacy(final YangInstanceIdentifier instanceIdentifier,
959 final NormalizedNode<?,?> normalizedNode) {
961 return dataNormalizer.toLegacy(instanceIdentifier, normalizedNode);
962 } catch (final NullPointerException e) {
963 throw new RestconfDocumentedException("Data normalizer isn't set. Normalization isn't possible", e);
967 public YangInstanceIdentifier toXpathRepresentation(final YangInstanceIdentifier instanceIdentifier) {
969 return dataNormalizer.toLegacy(instanceIdentifier);
970 } catch (final NullPointerException e) {
971 throw new RestconfDocumentedException("Data normalizer isn't set. Normalization isn't possible", e);
972 } catch (final DataNormalizationException e) {
973 throw new RestconfDocumentedException("Data normalizer failed. Normalization isn't possible", e);
977 public boolean isNodeMixin(final YangInstanceIdentifier path) {
978 final DataNormalizationOperation<?> operation;
980 operation = dataNormalizer.getOperation(path);
981 } catch (final DataNormalizationException e) {
982 throw new RestconfDocumentedException("Data normalizer failed. Normalization isn't possible", e);
984 return operation.isMixin();
987 public DataNormalizationOperation<?> getRootOperation() {
988 return dataNormalizer.getRootOperation();