2 * Copyright (c) 2014 Brocade Communications 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.netconf.sal.rest.doc.impl;
10 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.TOP;
11 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.buildDelete;
12 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.buildGet;
13 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.buildPost;
14 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.buildPostOperation;
15 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.buildPut;
16 import static org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.getTypeParentNode;
17 import static org.opendaylight.netconf.sal.rest.doc.util.JsonUtil.addFields;
18 import static org.opendaylight.netconf.sal.rest.doc.util.RestDocgenUtil.resolvePathArgumentsName;
20 import com.fasterxml.jackson.databind.JsonNode;
21 import com.fasterxml.jackson.databind.ObjectMapper;
22 import com.fasterxml.jackson.databind.SerializationFeature;
23 import com.fasterxml.jackson.databind.node.ArrayNode;
24 import com.fasterxml.jackson.databind.node.JsonNodeFactory;
25 import com.fasterxml.jackson.databind.node.ObjectNode;
26 import com.google.common.base.Preconditions;
27 import com.google.common.collect.ImmutableList;
28 import com.google.common.collect.Range;
29 import java.io.IOException;
30 import java.time.format.DateTimeParseException;
31 import java.util.Arrays;
32 import java.util.Collection;
33 import java.util.Collections;
34 import java.util.HashMap;
35 import java.util.Iterator;
36 import java.util.List;
38 import java.util.Map.Entry;
39 import java.util.Optional;
41 import java.util.SortedSet;
42 import java.util.TreeSet;
43 import javax.ws.rs.core.UriInfo;
44 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
45 import org.opendaylight.netconf.sal.rest.doc.impl.ApiDocServiceImpl.OAversion;
46 import org.opendaylight.netconf.sal.rest.doc.swagger.CommonApiObject;
47 import org.opendaylight.netconf.sal.rest.doc.swagger.Components;
48 import org.opendaylight.netconf.sal.rest.doc.swagger.Info;
49 import org.opendaylight.netconf.sal.rest.doc.swagger.OpenApiObject;
50 import org.opendaylight.netconf.sal.rest.doc.swagger.Server;
51 import org.opendaylight.netconf.sal.rest.doc.swagger.SwaggerObject;
52 import org.opendaylight.netconf.sal.rest.doc.util.JsonUtil;
53 import org.opendaylight.yangtools.yang.common.QName;
54 import org.opendaylight.yangtools.yang.common.Revision;
55 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
56 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
57 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
58 import org.opendaylight.yangtools.yang.model.api.ActionNodeContainer;
59 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
60 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
61 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
62 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
63 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
64 import org.opendaylight.yangtools.yang.model.api.Module;
65 import org.opendaylight.yangtools.yang.model.api.OperationDefinition;
66 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
67 import org.slf4j.Logger;
68 import org.slf4j.LoggerFactory;
70 public abstract class BaseYangSwaggerGenerator {
72 private static final Logger LOG = LoggerFactory.getLogger(BaseYangSwaggerGenerator.class);
74 private static final String API_VERSION = "1.0.0";
75 private static final String SWAGGER_VERSION = "2.0";
76 private static final String OPEN_API_VERSION = "3.0.3";
78 private final DefinitionGenerator jsonConverter = new DefinitionGenerator();
80 private final ObjectMapper mapper = new ObjectMapper();
81 private final DOMSchemaService schemaService;
83 public static final String BASE_PATH = "/";
84 public static final String MODULE_NAME_SUFFIX = "_module";
86 protected BaseYangSwaggerGenerator(final Optional<DOMSchemaService> schemaService) {
87 this.schemaService = schemaService.orElse(null);
88 mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
91 public DOMSchemaService getSchemaService() {
95 public SwaggerObject getAllModulesDoc(final UriInfo uriInfo, final DefinitionNames definitionNames,
96 final OAversion oaversion) {
97 final EffectiveModelContext schemaContext = schemaService.getGlobalContext();
98 Preconditions.checkState(schemaContext != null);
99 return getAllModulesDoc(uriInfo, Optional.empty(), schemaContext, Optional.empty(), "", definitionNames,
103 public SwaggerObject getAllModulesDoc(final UriInfo uriInfo, final Optional<Range<Integer>> range,
104 final EffectiveModelContext schemaContext, final Optional<String> deviceName,
105 final String context, final DefinitionNames definitionNames,
106 final OAversion oaversion) {
107 final String schema = createSchemaFromUriInfo(uriInfo);
108 final String host = createHostFromUriInfo(uriInfo);
109 String name = "Controller";
110 if (deviceName.isPresent()) {
111 name = deviceName.get();
114 final String title = name + " modules of RESTCONF";
115 final SwaggerObject doc = createSwaggerObject(schema, host, BASE_PATH, title);
116 doc.setDefinitions(JsonNodeFactory.instance.objectNode());
117 doc.setPaths(JsonNodeFactory.instance.objectNode());
119 fillDoc(doc, range, schemaContext, context, deviceName, oaversion, definitionNames);
124 public void fillDoc(final SwaggerObject doc, final Optional<Range<Integer>> range,
125 final EffectiveModelContext schemaContext, final String context,
126 final Optional<String> deviceName, final OAversion oaversion,
127 final DefinitionNames definitionNames) {
128 final SortedSet<Module> modules = getSortedModules(schemaContext);
129 final Set<Module> filteredModules;
130 if (range.isPresent()) {
131 filteredModules = filterByRange(modules, range.get());
133 filteredModules = modules;
136 for (final Module module : filteredModules) {
137 final String revisionString = module.getQNameModule().getRevision().map(Revision::toString).orElse(null);
139 LOG.debug("Working on [{},{}]...", module.getName(), revisionString);
141 getSwaggerDocSpec(module, context, deviceName, schemaContext, oaversion, definitionNames, doc, false);
145 private static Set<Module> filterByRange(final SortedSet<Module> modules, final Range<Integer> range) {
146 final int begin = range.lowerEndpoint();
147 final int end = range.upperEndpoint();
149 Module firstModule = null;
151 final Iterator<Module> iterator = modules.iterator();
153 while (iterator.hasNext() && counter < end) {
154 final Module module = iterator.next();
155 if (containsListOrContainer(module.getChildNodes()) || !module.getRpcs().isEmpty()) {
156 if (counter == begin) {
157 firstModule = module;
163 if (iterator.hasNext()) {
164 return modules.subSet(firstModule, iterator.next());
166 return modules.tailSet(firstModule);
170 public CommonApiObject getApiDeclaration(final String module, final String revision, final UriInfo uriInfo,
171 final OAversion oaversion) {
172 final EffectiveModelContext schemaContext = schemaService.getGlobalContext();
173 Preconditions.checkState(schemaContext != null);
174 final SwaggerObject doc = getApiDeclaration(module, revision, uriInfo, schemaContext, "", oaversion);
175 return getAppropriateDoc(doc, oaversion);
178 public SwaggerObject getApiDeclaration(final String moduleName, final String revision, final UriInfo uriInfo,
179 final EffectiveModelContext schemaContext, final String context,
180 final OAversion oaversion) {
181 final Optional<Revision> rev;
184 rev = Revision.ofNullable(revision);
185 } catch (final DateTimeParseException e) {
186 throw new IllegalArgumentException(e);
189 final Module module = schemaContext.findModule(moduleName, rev).orElse(null);
190 Preconditions.checkArgument(module != null,
191 "Could not find module by name,revision: " + moduleName + "," + revision);
193 return getApiDeclaration(module, uriInfo, context, schemaContext, oaversion);
196 public SwaggerObject getApiDeclaration(final Module module, final UriInfo uriInfo, final String context,
197 final EffectiveModelContext schemaContext, final OAversion oaversion) {
198 final String schema = createSchemaFromUriInfo(uriInfo);
199 final String host = createHostFromUriInfo(uriInfo);
201 return getSwaggerDocSpec(module, schema, host, BASE_PATH, context, schemaContext, oaversion);
204 public String createHostFromUriInfo(final UriInfo uriInfo) {
205 String portPart = "";
206 final int port = uriInfo.getBaseUri().getPort();
208 portPart = ":" + port;
210 return uriInfo.getBaseUri().getHost() + portPart;
213 public String createSchemaFromUriInfo(final UriInfo uriInfo) {
214 return uriInfo.getBaseUri().getScheme();
217 public SwaggerObject getSwaggerDocSpec(final Module module, final String schema, final String host,
218 final String basePath, final String context,
219 final EffectiveModelContext schemaContext, final OAversion oaversion) {
220 final SwaggerObject doc = createSwaggerObject(schema, host, basePath, module.getName());
221 final DefinitionNames definitionNames = new DefinitionNames();
222 return getSwaggerDocSpec(module, context, Optional.empty(), schemaContext, oaversion, definitionNames, doc,
226 public SwaggerObject getSwaggerDocSpec(final Module module, final String context, final Optional<String> deviceName,
227 final EffectiveModelContext schemaContext, final OAversion oaversion,
228 final DefinitionNames definitionNames, final SwaggerObject doc,
229 final boolean isForSingleModule) {
230 final ObjectNode definitions;
233 if (isForSingleModule) {
234 definitions = jsonConverter.convertToJsonSchema(module, schemaContext, definitionNames, oaversion,
236 doc.setDefinitions(definitions);
238 definitions = jsonConverter.convertToJsonSchema(module, schemaContext, definitionNames, oaversion,
240 addFields(doc.getDefinitions(), definitions.fields());
242 if (LOG.isDebugEnabled()) {
243 LOG.debug("Document: {}", mapper.writeValueAsString(doc));
245 } catch (final IOException e) {
246 LOG.error("Exception occured in DefinitionGenerator", e);
249 final ObjectNode paths = JsonNodeFactory.instance.objectNode();
250 final String moduleName = module.getName();
252 boolean hasAddRootPostLink = false;
254 final Collection<? extends DataSchemaNode> dataSchemaNodes = module.getChildNodes();
255 LOG.debug("child nodes size [{}]", dataSchemaNodes.size());
256 for (final DataSchemaNode node : dataSchemaNodes) {
257 if (node instanceof ListSchemaNode || node instanceof ContainerSchemaNode) {
258 LOG.debug("Is Configuration node [{}] [{}]", node.isConfiguration(), node.getQName().getLocalName());
260 final String localName = module.getName() + ":" + node.getQName().getLocalName();
261 ArrayNode pathParams = JsonNodeFactory.instance.arrayNode();
264 if (node.isConfiguration()) { // This node's config statement is
266 resourcePath = getResourcePath("config", context);
269 * When there are two or more top container or list nodes
270 * whose config statement is true in module, make sure that
271 * only one root post link is added for this module.
273 if (isForSingleModule && !hasAddRootPostLink) {
274 LOG.debug("Has added root post link for module {}", module.getName());
275 addRootPostLink(module, deviceName, pathParams, resourcePath, paths, oaversion);
277 hasAddRootPostLink = true;
280 final String resolvedPath = resourcePath + "/" + createPath(node, pathParams, oaversion, localName);
281 addPaths(node, deviceName, moduleName, paths, pathParams, schemaContext, true, module.getName(),
282 definitionNames, oaversion, resolvedPath);
284 pathParams = JsonNodeFactory.instance.arrayNode();
285 resourcePath = getResourcePath("operational", context);
287 if (!node.isConfiguration()) {
288 final String resolvedPath = resourcePath + "/" + createPath(node, pathParams, oaversion, localName);
289 addPaths(node, deviceName, moduleName, paths, pathParams, schemaContext, false, moduleName,
290 definitionNames, oaversion, resolvedPath);
295 for (final RpcDefinition rpcDefinition : module.getRpcs()) {
296 final String resolvedPath = getResourcePath("operations", context) + "/" + moduleName + ":"
297 + rpcDefinition.getQName().getLocalName();
298 addOperations(rpcDefinition, moduleName, deviceName, paths, module.getName(), definitionNames, oaversion,
302 LOG.debug("Number of Paths found [{}]", paths.size());
304 if (isForSingleModule) {
307 addFields(doc.getPaths(), paths.fields());
313 private static void addRootPostLink(final Module module, final Optional<String> deviceName,
314 final ArrayNode pathParams, final String resourcePath, final ObjectNode paths, final OAversion oaversion) {
315 if (containsListOrContainer(module.getChildNodes())) {
316 final ObjectNode post = JsonNodeFactory.instance.objectNode();
317 final String moduleName = module.getName();
318 final String name = moduleName + MODULE_NAME_SUFFIX;
319 post.set("post", buildPost("", name, "", moduleName, deviceName,
320 module.getDescription().orElse(""), pathParams, oaversion));
321 paths.set(resourcePath, post);
325 public SwaggerObject createSwaggerObject(final String schema, final String host, final String basePath,
326 final String title) {
327 final SwaggerObject doc = new SwaggerObject();
328 doc.setSwagger(SWAGGER_VERSION);
329 final Info info = new Info();
330 info.setTitle(title);
331 info.setVersion(API_VERSION);
333 doc.setSchemes(ImmutableList.of(schema));
335 doc.setBasePath(basePath);
336 doc.setProduces(Arrays.asList("application/xml", "application/json"));
340 public static CommonApiObject getAppropriateDoc(final SwaggerObject swaggerObject, final OAversion oaversion) {
341 if (oaversion.equals(OAversion.V3_0)) {
342 return convertToOpenApi(swaggerObject);
344 return swaggerObject;
347 private static OpenApiObject convertToOpenApi(final SwaggerObject swaggerObject) {
348 final OpenApiObject doc = new OpenApiObject();
349 doc.setOpenapi(OPEN_API_VERSION);
350 doc.setInfo(swaggerObject.getInfo());
351 doc.setServers(convertToServers(swaggerObject.getSchemes(), swaggerObject.getHost(),
352 swaggerObject.getBasePath()));
353 doc.setPaths(swaggerObject.getPaths());
354 doc.setComponents(new Components(swaggerObject.getDefinitions()));
359 private static List<Server> convertToServers(final List<String> schemes, final String host, final String basePath) {
360 return ImmutableList.of(new Server(schemes.get(0) + "://" + host + basePath));
363 protected abstract String getPathVersion();
365 public abstract String getResourcePath(String resourceType, String context);
367 public abstract String getResourcePathPart(String resourceType);
369 private void addPaths(final DataSchemaNode node, final Optional<String> deviceName, final String moduleName,
370 final ObjectNode paths, final ArrayNode parentPathParams,
371 final EffectiveModelContext schemaContext, final boolean isConfig, final String parentName,
372 final DefinitionNames definitionNames, final OAversion oaversion, final String resourcePath) {
373 LOG.debug("Adding path: [{}]", resourcePath);
375 final ArrayNode pathParams = JsonUtil.copy(parentPathParams);
376 Iterable<? extends DataSchemaNode> childSchemaNodes = Collections.emptySet();
377 if (node instanceof ListSchemaNode || node instanceof ContainerSchemaNode) {
378 final DataNodeContainer dataNodeContainer = (DataNodeContainer) node;
379 childSchemaNodes = dataNodeContainer.getChildNodes();
382 final ObjectNode path = JsonNodeFactory.instance.objectNode();
383 path.setAll(operations(node, moduleName, deviceName, pathParams, isConfig, parentName, definitionNames,
385 paths.set(resourcePath, path);
387 if (node instanceof ActionNodeContainer) {
388 ((ActionNodeContainer) node).getActions().forEach(actionDef -> {
389 final String resolvedPath = "rests/operations" + resourcePath.substring(11)
390 + "/" + resolvePathArgumentsName(actionDef.getQName(), node.getQName(), schemaContext);
391 addOperations(actionDef, moduleName, deviceName, paths, parentName, definitionNames, oaversion,
396 for (final DataSchemaNode childNode : childSchemaNodes) {
397 if (childNode instanceof ListSchemaNode || childNode instanceof ContainerSchemaNode) {
398 final String newParent = parentName + "_" + node.getQName().getLocalName();
399 final String localName = resolvePathArgumentsName(childNode.getQName(), node.getQName(), schemaContext);
400 final String newResourcePath = resourcePath + "/" + createPath(childNode, pathParams, oaversion,
402 final boolean newIsConfig = isConfig && childNode.isConfiguration();
403 addPaths(childNode, deviceName, moduleName, paths, pathParams, schemaContext,
404 newIsConfig, newParent, definitionNames, oaversion, newResourcePath);
409 private static boolean containsListOrContainer(final Iterable<? extends DataSchemaNode> nodes) {
410 for (final DataSchemaNode child : nodes) {
411 if (child instanceof ListSchemaNode || child instanceof ContainerSchemaNode) {
418 private static Map<String, ObjectNode> operations(final DataSchemaNode node, final String moduleName,
419 final Optional<String> deviceName, final ArrayNode pathParams,
420 final boolean isConfig, final String parentName,
421 final DefinitionNames definitionNames,
422 final OAversion oaversion) {
423 final Map<String, ObjectNode> operations = new HashMap<>();
424 final String discriminator = definitionNames.getDiscriminator(node);
426 final String nodeName = node.getQName().getLocalName();
428 final String defName = parentName + "_" + nodeName + TOP + discriminator;
429 final ObjectNode get = buildGet(node, moduleName, deviceName, pathParams, defName, isConfig, oaversion);
430 operations.put("get", get);
434 final ObjectNode put = buildPut(parentName, nodeName, discriminator, moduleName, deviceName,
435 node.getDescription().orElse(""), pathParams, oaversion);
436 operations.put("put", put);
438 final ObjectNode delete = buildDelete(node, moduleName, deviceName, pathParams, oaversion);
439 operations.put("delete", delete);
441 operations.put("post", buildPost(parentName, nodeName, discriminator, moduleName, deviceName,
442 node.getDescription().orElse(""), pathParams, oaversion));
447 protected abstract ListPathBuilder newListPathBuilder();
449 private String createPath(final DataSchemaNode schemaNode, final ArrayNode pathParams,
450 final OAversion oaversion, final String localName) {
451 final StringBuilder path = new StringBuilder();
452 path.append(localName);
454 if (schemaNode instanceof ListSchemaNode) {
455 final ListPathBuilder keyBuilder = newListPathBuilder();
456 for (final QName listKey : ((ListSchemaNode) schemaNode).getKeyDefinition()) {
457 final String paramName = createUniquePathParamName(listKey.getLocalName(), pathParams);
458 final String pathParamIdentifier = keyBuilder.nextParamIdentifier(paramName);
460 path.append(pathParamIdentifier);
462 final ObjectNode pathParam = JsonNodeFactory.instance.objectNode();
463 pathParam.put("name", paramName);
465 ((DataNodeContainer) schemaNode).findDataChildByName(listKey).flatMap(DataSchemaNode::getDescription)
466 .ifPresent(desc -> pathParam.put("description", desc));
468 final ObjectNode typeParent = getTypeParentNode(pathParam, oaversion);
470 typeParent.put("type", "string");
471 pathParam.put("in", "path");
472 pathParam.put("required", true);
474 pathParams.add(pathParam);
477 return path.toString();
480 private String createUniquePathParamName(final String clearName, final ArrayNode pathParams) {
481 for (final JsonNode pathParam : pathParams) {
482 if (isNamePicked(clearName, pathParam)) {
483 return createUniquePathParamName(clearName, pathParams, 1);
489 private String createUniquePathParamName(final String clearName, final ArrayNode pathParams,
490 final int discriminator) {
491 final String newName = clearName + discriminator;
492 for (final JsonNode pathParam : pathParams) {
493 if (isNamePicked(newName, pathParam)) {
494 return createUniquePathParamName(clearName, pathParams, discriminator + 1);
500 private static boolean isNamePicked(final String name, final JsonNode pathParam) {
501 return name.equals(pathParam.get("name").asText());
504 public SortedSet<Module> getSortedModules(final EffectiveModelContext schemaContext) {
505 if (schemaContext == null) {
506 return Collections.emptySortedSet();
509 final SortedSet<Module> sortedModules = new TreeSet<>((module1, module2) -> {
510 int result = module1.getName().compareTo(module2.getName());
512 result = Revision.compare(module1.getRevision(), module2.getRevision());
515 result = module1.getNamespace().compareTo(module2.getNamespace());
519 for (final Module m : schemaContext.getModules()) {
521 sortedModules.add(m);
524 return sortedModules;
527 private static void addOperations(final OperationDefinition operDef, final String moduleName,
528 final Optional<String> deviceName, final ObjectNode paths, final String parentName,
529 final DefinitionNames definitionNames, final OAversion oaversion, final String resourcePath) {
530 final ObjectNode operations = JsonNodeFactory.instance.objectNode();
531 operations.set("post", buildPostOperation(operDef, moduleName, deviceName, parentName, definitionNames,
533 paths.set(resourcePath, operations);
536 protected abstract void appendPathKeyValue(StringBuilder builder, Object value);
538 public String generateUrlPrefixFromInstanceID(final YangInstanceIdentifier key, final String moduleName) {
539 final StringBuilder builder = new StringBuilder();
541 if (moduleName != null) {
542 builder.append(moduleName).append(':');
544 for (final PathArgument arg : key.getPathArguments()) {
545 final String name = arg.getNodeType().getLocalName();
546 if (arg instanceof NodeIdentifierWithPredicates) {
547 final NodeIdentifierWithPredicates nodeId = (NodeIdentifierWithPredicates) arg;
548 for (final Entry<QName, Object> entry : nodeId.entrySet()) {
549 appendPathKeyValue(builder, entry.getValue());
552 builder.append(name).append('/');
555 return builder.toString();
558 protected interface ListPathBuilder {
559 String nextParamIdentifier(String key);