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.util.RestDocgenUtil.resolvePathArgumentsName;
12 import com.fasterxml.jackson.databind.ObjectMapper;
13 import com.fasterxml.jackson.databind.SerializationFeature;
14 import com.fasterxml.jackson.databind.node.ObjectNode;
15 import com.google.common.base.Preconditions;
16 import java.io.IOException;
18 import java.time.format.DateTimeParseException;
19 import java.util.ArrayList;
20 import java.util.Arrays;
21 import java.util.Collection;
22 import java.util.Collections;
23 import java.util.List;
24 import java.util.Optional;
26 import java.util.SortedSet;
27 import java.util.TreeSet;
28 import javax.ws.rs.core.UriInfo;
29 import org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder;
30 import org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.Delete;
31 import org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.Get;
32 import org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.Post;
33 import org.opendaylight.netconf.sal.rest.doc.model.builder.OperationBuilder.Put;
34 import org.opendaylight.netconf.sal.rest.doc.swagger.Api;
35 import org.opendaylight.netconf.sal.rest.doc.swagger.ApiDeclaration;
36 import org.opendaylight.netconf.sal.rest.doc.swagger.Operation;
37 import org.opendaylight.netconf.sal.rest.doc.swagger.Parameter;
38 import org.opendaylight.netconf.sal.rest.doc.swagger.Resource;
39 import org.opendaylight.netconf.sal.rest.doc.swagger.ResourceList;
40 import org.opendaylight.yangtools.yang.common.QName;
41 import org.opendaylight.yangtools.yang.common.Revision;
42 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
43 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
44 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
45 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
46 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
47 import org.opendaylight.yangtools.yang.model.api.Module;
48 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
49 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
50 import org.slf4j.Logger;
51 import org.slf4j.LoggerFactory;
53 public class BaseYangSwaggerGenerator {
55 private static final Logger LOG = LoggerFactory.getLogger(BaseYangSwaggerGenerator.class);
57 protected static final String API_VERSION = "1.0.0";
58 protected static final String SWAGGER_VERSION = "1.2";
59 protected static final String RESTCONF_CONTEXT_ROOT = "restconf";
60 private static final String RESTCONF_DRAFT = "18";
62 static final String MODULE_NAME_SUFFIX = "_module";
63 private final ModelGenerator jsonConverter = new ModelGenerator();
65 // private Map<String, ApiDeclaration> MODULE_DOC_CACHE = new HashMap<>()
66 private final ObjectMapper mapper = new ObjectMapper();
67 private static boolean newDraft;
69 protected BaseYangSwaggerGenerator() {
70 this.mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
74 * Return list of modules converted to swagger compliant resource list.
76 public ResourceList getResourceListing(final UriInfo uriInfo, final SchemaContext schemaContext,
77 final String context) {
79 final ResourceList resourceList = createResourceList();
81 final Set<Module> modules = getSortedModules(schemaContext);
83 final List<Resource> resources = new ArrayList<>(modules.size());
85 LOG.info("Modules found [{}]", modules.size());
87 for (final Module module : modules) {
88 final String revisionString = module.getQNameModule().getRevision().map(Revision::toString).orElse(null);
89 final Resource resource = new Resource();
90 LOG.debug("Working on [{},{}]...", module.getName(), revisionString);
91 final ApiDeclaration doc =
92 getApiDeclaration(module.getName(), revisionString, uriInfo, schemaContext, context);
95 resource.setPath(generatePath(uriInfo, module.getName(), revisionString));
96 resources.add(resource);
98 LOG.warn("Could not generate doc for {},{}", module.getName(), revisionString);
102 resourceList.setApis(resources);
107 protected ResourceList createResourceList() {
108 final ResourceList resourceList = new ResourceList();
109 resourceList.setApiVersion(API_VERSION);
110 resourceList.setSwaggerVersion(SWAGGER_VERSION);
114 protected String generatePath(final UriInfo uriInfo, final String name, final String revision) {
115 final URI uri = uriInfo.getRequestUriBuilder().path(generateCacheKey(name, revision)).build();
116 return uri.toASCIIString();
119 public ApiDeclaration getApiDeclaration(final String moduleName, final String revision, final UriInfo uriInfo,
120 final SchemaContext schemaContext, final String context) {
121 final Optional<Revision> rev;
124 rev = Revision.ofNullable(revision);
125 } catch (final DateTimeParseException e) {
126 throw new IllegalArgumentException(e);
129 final Module module = schemaContext.findModule(moduleName, rev).orElse(null);
130 Preconditions.checkArgument(module != null,
131 "Could not find module by name,revision: " + moduleName + "," + revision);
133 return getApiDeclaration(module, uriInfo, context, schemaContext);
136 public ApiDeclaration getApiDeclaration(final Module module, final UriInfo uriInfo,
137 final String context, final SchemaContext schemaContext) {
138 final String basePath = createBasePathFromUriInfo(uriInfo);
140 final ApiDeclaration doc = getSwaggerDocSpec(module, basePath, context, schemaContext);
147 protected String createBasePathFromUriInfo(final UriInfo uriInfo) {
148 String portPart = "";
149 final int port = uriInfo.getBaseUri().getPort();
151 portPart = ":" + port;
153 final String basePath =
154 new StringBuilder(uriInfo.getBaseUri().getScheme()).append("://").append(uriInfo.getBaseUri().getHost())
155 .append(portPart).append("/").append(RESTCONF_CONTEXT_ROOT).toString();
159 public ApiDeclaration getSwaggerDocSpec(final Module module, final String basePath, final String context,
160 final SchemaContext schemaContext) {
161 final ApiDeclaration doc = createApiDeclaration(basePath);
163 final List<Api> apis = new ArrayList<>();
164 boolean hasAddRootPostLink = false;
166 final Collection<DataSchemaNode> dataSchemaNodes = module.getChildNodes();
167 LOG.debug("child nodes size [{}]", dataSchemaNodes.size());
168 for (final DataSchemaNode node : dataSchemaNodes) {
169 if (node instanceof ListSchemaNode || node instanceof ContainerSchemaNode) {
170 LOG.debug("Is Configuration node [{}] [{}]", node.isConfiguration(), node.getQName().getLocalName());
172 List<Parameter> pathParams = new ArrayList<>();
176 * Only when the node's config statement is true, such apis as
177 * GET/PUT/POST/DELETE config are added for this node.
179 if (node.isConfiguration()) { // This node's config statement is
181 resourcePath = getDataStorePath("config", context);
184 * When there are two or more top container or list nodes
185 * whose config statement is true in module, make sure that
186 * only one root post link is added for this module.
188 if (!hasAddRootPostLink) {
189 LOG.debug("Has added root post link for module {}", module.getName());
190 addRootPostLink(module, (DataNodeContainer) node, pathParams, resourcePath, "config", apis);
192 hasAddRootPostLink = true;
195 addApis(node, apis, resourcePath, pathParams, schemaContext, true, module.getName(), "config");
197 pathParams = new ArrayList<>();
198 resourcePath = getDataStorePath("operational", context);
200 addApis(node, apis, resourcePath, pathParams, schemaContext, false, module.getName(), "operational");
204 final Set<RpcDefinition> rpcs = module.getRpcs();
205 for (final RpcDefinition rpcDefinition : rpcs) {
206 final String resourcePath;
207 resourcePath = getDataStorePath("operations", context);
209 addRpcs(rpcDefinition, apis, resourcePath, schemaContext);
212 LOG.debug("Number of APIs found [{}]", apis.size());
214 if (!apis.isEmpty()) {
216 ObjectNode models = null;
219 models = this.jsonConverter.convertToJsonSchema(module, schemaContext);
220 doc.setModels(models);
221 if (LOG.isDebugEnabled()) {
222 LOG.debug(this.mapper.writeValueAsString(doc));
224 } catch (IOException e) {
225 LOG.error("Exception occured in ModelGenerator", e);
233 private static void addRootPostLink(final Module module, final DataNodeContainer node,
234 final List<Parameter> pathParams, final String resourcePath, final String dataStore, final List<Api> apis) {
235 if (containsListOrContainer(module.getChildNodes())) {
236 final Api apiForRootPostUri = new Api();
237 apiForRootPostUri.setPath(resourcePath.concat(getContent(dataStore)));
238 apiForRootPostUri.setOperations(operationPost(module.getName() + MODULE_NAME_SUFFIX,
239 module.getDescription().orElse(null), module, pathParams, true, ""));
240 apis.add(apiForRootPostUri);
244 protected ApiDeclaration createApiDeclaration(final String basePath) {
245 final ApiDeclaration doc = new ApiDeclaration();
246 doc.setApiVersion(API_VERSION);
247 doc.setSwaggerVersion(SWAGGER_VERSION);
248 doc.setBasePath(basePath);
249 doc.setProduces(Arrays.asList("application/json", "application/xml"));
253 protected String getDataStorePath(final String dataStore, final String context) {
255 if ("config".contains(dataStore) || "operational".contains(dataStore)) {
256 return "/" + RESTCONF_DRAFT + "/data" + context;
258 return "/" + RESTCONF_DRAFT + "/operations" + context;
261 return "/" + dataStore + context;
264 private static String generateCacheKey(final String module, final String revision) {
265 return module + "(" + revision + ")";
268 private void addApis(final DataSchemaNode node, final List<Api> apis, final String parentPath,
269 final List<Parameter> parentPathParams, final SchemaContext schemaContext, final boolean addConfigApi,
270 final String parentName, final String dataStore) {
271 final Api api = new Api();
272 final List<Parameter> pathParams = new ArrayList<>(parentPathParams);
274 final String resourcePath = parentPath + "/" + createPath(node, pathParams, schemaContext);
275 LOG.debug("Adding path: [{}]", resourcePath);
276 api.setPath(resourcePath.concat(getContent(dataStore)));
278 Iterable<DataSchemaNode> childSchemaNodes = Collections.<DataSchemaNode>emptySet();
279 if (node instanceof ListSchemaNode || node instanceof ContainerSchemaNode) {
280 final DataNodeContainer dataNodeContainer = (DataNodeContainer) node;
281 childSchemaNodes = dataNodeContainer.getChildNodes();
283 api.setOperations(operation(node, pathParams, addConfigApi, childSchemaNodes, parentName));
286 for (final DataSchemaNode childNode : childSchemaNodes) {
287 if (childNode instanceof ListSchemaNode || childNode instanceof ContainerSchemaNode) {
288 // keep config and operation attributes separate.
289 if (childNode.isConfiguration() == addConfigApi) {
290 final String newParent = parentName + "/" + node.getQName().getLocalName();
291 addApis(childNode, apis, resourcePath, pathParams, schemaContext, addConfigApi, newParent,
298 protected static String getContent(final String dataStore) {
300 if ("operational".contains(dataStore)) {
301 return "?content=nonconfig";
302 } else if ("config".contains(dataStore)) {
303 return "?content=config";
312 private static boolean containsListOrContainer(final Iterable<DataSchemaNode> nodes) {
313 for (final DataSchemaNode child : nodes) {
314 if (child instanceof ListSchemaNode || child instanceof ContainerSchemaNode) {
321 private static List<Operation> operation(final DataSchemaNode node, final List<Parameter> pathParams,
322 final boolean isConfig, final Iterable<DataSchemaNode> childSchemaNodes, final String parentName) {
323 final List<Operation> operations = new ArrayList<>();
325 final Get getBuilder = new Get(node, isConfig);
326 operations.add(getBuilder.pathParams(pathParams).build());
329 final Put putBuilder = new Put(node.getQName().getLocalName(), node.getDescription().orElse(null),
331 operations.add(putBuilder.pathParams(pathParams).build());
333 final Delete deleteBuilder = new Delete(node);
334 operations.add(deleteBuilder.pathParams(pathParams).build());
336 if (containsListOrContainer(childSchemaNodes)) {
337 operations.addAll(operationPost(node.getQName().getLocalName(), node.getDescription().orElse(null),
338 (DataNodeContainer) node, pathParams, isConfig, parentName + "/"));
344 private static List<Operation> operationPost(final String name, final String description,
345 final DataNodeContainer dataNodeContainer, final List<Parameter> pathParams, final boolean isConfig,
346 final String parentName) {
347 final List<Operation> operations = new ArrayList<>();
349 final Post postBuilder = new Post(name, parentName + name, description, dataNodeContainer);
350 operations.add(postBuilder.pathParams(pathParams).build());
355 private static String createPath(final DataSchemaNode schemaNode, final List<Parameter> pathParams,
356 final SchemaContext schemaContext) {
357 final ArrayList<LeafSchemaNode> pathListParams = new ArrayList<>();
358 final StringBuilder path = new StringBuilder();
359 final String localName = resolvePathArgumentsName(schemaNode, schemaContext);
360 path.append(localName);
362 if (schemaNode instanceof ListSchemaNode) {
363 final List<QName> listKeys = ((ListSchemaNode) schemaNode).getKeyDefinition();
364 StringBuilder keyBuilder = null;
366 keyBuilder = new StringBuilder("=");
369 for (final QName listKey : listKeys) {
370 final DataSchemaNode dataChildByName = ((DataNodeContainer) schemaNode).getDataChildByName(listKey);
371 pathListParams.add((LeafSchemaNode) dataChildByName);
372 final String pathParamIdentifier;
374 pathParamIdentifier = keyBuilder.append("{").append(listKey.getLocalName()).append("}").toString();
376 pathParamIdentifier = "/{" + listKey.getLocalName() + "}";
378 path.append(pathParamIdentifier);
380 final Parameter pathParam = new Parameter();
381 pathParam.setName(listKey.getLocalName());
382 pathParam.setDescription(dataChildByName.getDescription().orElse(null));
383 pathParam.setType("string");
384 pathParam.setParamType("path");
386 pathParams.add(pathParam);
388 keyBuilder = new StringBuilder(",");
392 return path.toString();
395 protected void addRpcs(final RpcDefinition rpcDefn, final List<Api> apis, final String parentPath,
396 final SchemaContext schemaContext) {
397 final Api rpc = new Api();
398 final String resourcePath = parentPath + "/" + resolvePathArgumentsName(rpcDefn, schemaContext);
399 rpc.setPath(resourcePath);
401 final Operation operationSpec = new Operation();
402 operationSpec.setMethod("POST");
403 operationSpec.setNotes(rpcDefn.getDescription().orElse(null));
404 operationSpec.setNickname(rpcDefn.getQName().getLocalName());
405 if (!rpcDefn.getOutput().getChildNodes().isEmpty()) {
406 operationSpec.setType("(" + rpcDefn.getQName().getLocalName() + ")output" + OperationBuilder.TOP);
408 if (!rpcDefn.getInput().getChildNodes().isEmpty()) {
409 final Parameter payload = new Parameter();
410 payload.setParamType("body");
411 payload.setType("(" + rpcDefn.getQName().getLocalName() + ")input" + OperationBuilder.TOP);
412 operationSpec.setParameters(Collections.singletonList(payload));
413 operationSpec.setConsumes(OperationBuilder.CONSUMES_PUT_POST);
416 rpc.setOperations(Arrays.asList(operationSpec));
421 protected SortedSet<Module> getSortedModules(final SchemaContext schemaContext) {
422 if (schemaContext == null) {
423 return new TreeSet<>();
426 final Set<Module> modules = schemaContext.getModules();
428 final SortedSet<Module> sortedModules = new TreeSet<>((module1, module2) -> {
429 int result = module1.getName().compareTo(module2.getName());
431 result = Revision.compare(module1.getRevision(), module2.getRevision());
434 result = module1.getNamespace().compareTo(module2.getNamespace());
438 for (final Module m : modules) {
440 sortedModules.add(m);
443 return sortedModules;
446 public void setDraft(final boolean draft) {
447 BaseYangSwaggerGenerator.newDraft = draft;