2 * Copyright (c) 2013 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.config.yangjmxgenerator;
10 import static com.google.common.base.Preconditions.checkNotNull;
11 import static com.google.common.base.Preconditions.checkState;
12 import static java.lang.String.format;
13 import static org.opendaylight.controller.config.yangjmxgenerator.ConfigConstants.createConfigQName;
15 import com.google.common.annotations.VisibleForTesting;
16 import com.google.common.base.Function;
17 import com.google.common.base.Optional;
18 import com.google.common.collect.Collections2;
19 import com.google.common.collect.Maps;
20 import com.google.common.collect.Sets;
22 import java.util.Collection;
23 import java.util.Collections;
24 import java.util.HashMap;
26 import java.util.Objects;
28 import java.util.regex.Matcher;
29 import java.util.regex.Pattern;
31 import javax.annotation.Nullable;
33 import org.opendaylight.controller.config.yangjmxgenerator.attribute.AbstractDependencyAttribute;
34 import org.opendaylight.controller.config.yangjmxgenerator.attribute.AttributeIfc;
35 import org.opendaylight.controller.config.yangjmxgenerator.attribute.DependencyAttribute;
36 import org.opendaylight.controller.config.yangjmxgenerator.attribute.JavaAttribute;
37 import org.opendaylight.controller.config.yangjmxgenerator.attribute.ListAttribute;
38 import org.opendaylight.controller.config.yangjmxgenerator.attribute.ListDependenciesAttribute;
39 import org.opendaylight.controller.config.yangjmxgenerator.attribute.TOAttribute;
40 import org.opendaylight.controller.config.yangjmxgenerator.plugin.util.NameConflictException;
41 import org.opendaylight.yangtools.yang.common.QName;
42 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
43 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
44 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
45 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
46 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
47 import org.opendaylight.yangtools.yang.model.api.IdentitySchemaNode;
48 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
49 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
50 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
51 import org.opendaylight.yangtools.yang.model.api.Module;
52 import org.opendaylight.yangtools.yang.model.api.ModuleImport;
53 import org.opendaylight.yangtools.yang.model.api.RevisionAwareXPath;
54 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
55 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
56 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
57 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
58 import org.opendaylight.yangtools.yang.model.api.UsesNode;
59 import org.slf4j.Logger;
60 import org.slf4j.LoggerFactory;
62 final class ModuleMXBeanEntryBuilder {
64 private Module currentModule;
65 private Map<QName, ServiceInterfaceEntry> qNamesToSIEs;
66 private SchemaContext schemaContext;
67 private TypeProviderWrapper typeProviderWrapper;
68 private String packageName;
70 public ModuleMXBeanEntryBuilder setModule(final Module module) {
71 this.currentModule = module;
75 public ModuleMXBeanEntryBuilder setqNamesToSIEs(final Map<QName, ServiceInterfaceEntry> qNamesToSIEs) {
76 this.qNamesToSIEs = qNamesToSIEs;
80 public ModuleMXBeanEntryBuilder setSchemaContext(final SchemaContext schemaContext) {
81 this.schemaContext = schemaContext;
85 public ModuleMXBeanEntryBuilder setTypeProviderWrapper(final TypeProviderWrapper typeProviderWrapper) {
86 this.typeProviderWrapper = typeProviderWrapper;
90 public ModuleMXBeanEntryBuilder setPackageName(final String packageName) {
91 this.packageName = packageName;
95 private static final Logger logger = LoggerFactory
96 .getLogger(ModuleMXBeanEntryBuilder.class);
98 // TODO: the XPath should be parsed by code generator IMO
99 private static final String MAGIC_STRING = "MAGIC_STRING";
100 private static final String MODULE_CONDITION_XPATH_TEMPLATE = "^/MAGIC_STRING:modules/MAGIC_STRING:module/MAGIC_STRING:type\\s*=\\s*['\"](.+)['\"]$";
101 private static final SchemaPath expectedConfigurationAugmentationSchemaPath = SchemaPath.create(true,
102 createConfigQName("modules"), createConfigQName("module"), createConfigQName("configuration"));
103 private static final SchemaPath expectedStateAugmentationSchemaPath = SchemaPath.create(true,
104 createConfigQName("modules"), createConfigQName("module"), createConfigQName("state"));
105 private static final Pattern PREFIX_COLON_LOCAL_NAME = Pattern
106 .compile("^(.+):(.+)$");
109 public Map<String, ModuleMXBeanEntry> build() {
110 logger.debug("Generating ModuleMXBeans of {} to package {}",
111 currentModule.getNamespace(), packageName);
113 String configModulePrefix;
115 configModulePrefix = getConfigModulePrefixFromImport(currentModule);
116 } catch (IllegalArgumentException e) {
117 // this currentModule does not import config currentModule
118 return Collections.emptyMap();
121 // get identities of base config:currentModule-type
122 Map<String, IdentitySchemaNode> moduleIdentities = getIdentityMap();
124 Map<String, QName> uniqueGeneratedClassesNames = new HashMap<>();
126 // each currentModule name should have an augmentation defined
127 Map<String, IdentitySchemaNode> unaugmentedModuleIdentities = new HashMap<>(
130 Map<String, ModuleMXBeanEntry> result = new HashMap<>();
132 for (AugmentationSchema augmentation : currentModule.getAugmentations()) {
133 Collection<DataSchemaNode> childNodes = augmentation.getChildNodes();
134 if (areAllChildrenChoiceCaseNodes(childNodes)) {
135 for (ChoiceCaseNode childCase : castChildNodesToChoiceCases(childNodes)) {
136 // TODO refactor, extract to standalone builder class
137 processChoiceCaseNode(result, uniqueGeneratedClassesNames, configModulePrefix, moduleIdentities,
138 unaugmentedModuleIdentities, augmentation, childCase);
140 } // skip if child nodes are not all cases
143 cleanUpNulls(result);
144 // check attributes name uniqueness
145 checkAttributeNamesUniqueness(uniqueGeneratedClassesNames, result);
146 checkUnaugumentedIdentities(unaugmentedModuleIdentities);
148 logger.debug("Number of ModuleMXBeans to be generated: {}", result.size());
153 private static void cleanUpNulls(final Map<String, ModuleMXBeanEntry> result) {
154 for (Map.Entry<String, ModuleMXBeanEntry> entry : result.entrySet()) {
155 ModuleMXBeanEntry module = entry.getValue();
156 if (module.getAttributes() == null) {
157 module.setYangToAttributes(Collections
158 .<String, AttributeIfc> emptyMap());
159 } else if (module.getRuntimeBeans() == null) {
160 module.setRuntimeBeans(Collections
161 .<RuntimeBeanEntry> emptyList());
166 private static void checkUnaugumentedIdentities(final Map<String, IdentitySchemaNode> unaugmentedModuleIdentities) {
167 if (unaugmentedModuleIdentities.size() > 0) {
168 logger.warn("Augmentation not found for all currentModule identities: {}",
169 unaugmentedModuleIdentities.keySet());
173 private static void checkAttributeNamesUniqueness(final Map<String, QName> uniqueGeneratedClassesNames, final Map<String, ModuleMXBeanEntry> result) {
174 for (Map.Entry<String, ModuleMXBeanEntry> entry : result.entrySet()) {
175 checkUniqueRuntimeBeanAttributesName(entry.getValue(),
176 uniqueGeneratedClassesNames);
180 private Map<String, IdentitySchemaNode> getIdentityMap() {
181 Map<String, IdentitySchemaNode> moduleIdentities = Maps.newHashMap();
183 for (IdentitySchemaNode id : currentModule.getIdentities()) {
184 if (id.getBaseIdentity() != null
185 && ConfigConstants.MODULE_TYPE_Q_NAME.equals(id.getBaseIdentity().getQName())) {
186 String identityLocalName = id.getQName().getLocalName();
187 if (moduleIdentities.containsKey(identityLocalName)) {
188 throw new IllegalStateException("Module name already defined in this currentModule: "
189 + identityLocalName);
191 moduleIdentities.put(identityLocalName, id);
192 logger.debug("Found identity {}", identityLocalName);
194 // validation check on unknown schema nodes
195 boolean providedServiceWasSet = false;
196 for (UnknownSchemaNode unknownNode : id.getUnknownSchemaNodes()) {
198 boolean unknownNodeIsProvidedServiceExtension = ConfigConstants.PROVIDED_SERVICE_EXTENSION_QNAME.equals(unknownNode.getNodeType());
199 // true => no op: 0 or more provided identities are allowed
201 if (ConfigConstants.JAVA_NAME_PREFIX_EXTENSION_QNAME.equals(unknownNode.getNodeType())) {
204 providedServiceWasSet == false,
205 format("More than one language extension %s is not allowed here: %s",
206 ConfigConstants.JAVA_NAME_PREFIX_EXTENSION_QNAME, id));
207 providedServiceWasSet = true;
208 } else if (unknownNodeIsProvidedServiceExtension == false) {
209 throw new IllegalStateException("Unexpected language extension " + unknownNode.getNodeType());
215 return moduleIdentities;
218 private Collection<ChoiceCaseNode> castChildNodesToChoiceCases(final Collection<DataSchemaNode> childNodes) {
219 return Collections2.transform(childNodes, new Function<DataSchemaNode, ChoiceCaseNode>() {
222 public ChoiceCaseNode apply(@Nullable final DataSchemaNode input) {
223 return (ChoiceCaseNode) input;
228 private boolean areAllChildrenChoiceCaseNodes(final Iterable<DataSchemaNode> childNodes) {
229 for (DataSchemaNode childNode : childNodes) {
230 if (childNode instanceof ChoiceCaseNode == false) {
237 private <HAS_CHILDREN_AND_QNAME extends DataNodeContainer & SchemaNode> void processChoiceCaseNode(final Map<String, ModuleMXBeanEntry> result,
238 final Map<String, QName> uniqueGeneratedClassesNames, final String configModulePrefix,
239 final Map<String, IdentitySchemaNode> moduleIdentities,
240 final Map<String, IdentitySchemaNode> unaugmentedModuleIdentities, final AugmentationSchema augmentation,
241 final DataSchemaNode when) {
243 ChoiceCaseNode choiceCaseNode = (ChoiceCaseNode) when;
244 if (choiceCaseNode.getConstraints() == null || choiceCaseNode.getConstraints().getWhenCondition() == null) {
247 RevisionAwareXPath xPath = choiceCaseNode.getConstraints().getWhenCondition();
248 Matcher matcher = getWhenConditionMatcher(configModulePrefix, xPath);
249 if (matcher.matches() == false) {
252 String moduleLocalNameFromXPath = matcher.group(1);
253 IdentitySchemaNode moduleIdentity = moduleIdentities.get(moduleLocalNameFromXPath);
254 unaugmentedModuleIdentities.remove(moduleLocalNameFromXPath);
255 checkState(moduleIdentity != null, "Cannot find identity " + moduleLocalNameFromXPath
256 + " matching augmentation " + augmentation);
257 Map<String, QName> providedServices = findProvidedServices(moduleIdentity, currentModule, qNamesToSIEs,
260 if (moduleIdentity == null) {
261 throw new IllegalStateException("Cannot find identity specified by augmentation xpath constraint: "
262 + moduleLocalNameFromXPath + " of " + augmentation);
264 String javaNamePrefix = TypeProviderWrapper.findJavaNamePrefix(moduleIdentity);
266 Map<String, AttributeIfc> yangToAttributes = null;
268 Collection<RuntimeBeanEntry> runtimeBeans = null;
270 HAS_CHILDREN_AND_QNAME dataNodeContainer = getDataNodeContainer(choiceCaseNode);
272 if (expectedConfigurationAugmentationSchemaPath.equals(augmentation.getTargetPath())) {
273 logger.debug("Parsing configuration of {}", moduleLocalNameFromXPath);
274 yangToAttributes = fillConfiguration(dataNodeContainer, currentModule, typeProviderWrapper, qNamesToSIEs,
275 schemaContext, packageName);
276 checkUniqueAttributesWithGeneratedClass(uniqueGeneratedClassesNames, when.getQName(), yangToAttributes);
277 } else if (expectedStateAugmentationSchemaPath.equals(augmentation.getTargetPath())) {
278 logger.debug("Parsing state of {}", moduleLocalNameFromXPath);
280 runtimeBeans = fillRuntimeBeans(dataNodeContainer, currentModule, typeProviderWrapper, packageName,
281 moduleLocalNameFromXPath, javaNamePrefix);
282 } catch (NameConflictException e) {
283 throw new NameConflictException(e.getConflictingName(), when.getQName(), when.getQName());
285 checkUniqueRuntimeBeansGeneratedClasses(uniqueGeneratedClassesNames, when, runtimeBeans);
286 Set<RuntimeBeanEntry> runtimeBeanEntryValues = Sets.newHashSet(runtimeBeans);
287 for (RuntimeBeanEntry entry : runtimeBeanEntryValues) {
288 checkUniqueAttributesWithGeneratedClass(uniqueGeneratedClassesNames, when.getQName(),
289 entry.getYangPropertiesToTypesMap());
293 throw new IllegalArgumentException("Cannot parse augmentation " + augmentation);
295 boolean hasDummyContainer = choiceCaseNode.equals(dataNodeContainer) == false;
297 String nullableDummyContainerName = hasDummyContainer ? dataNodeContainer.getQName().getLocalName() : null;
298 if (result.containsKey(moduleLocalNameFromXPath)) {
299 // either fill runtimeBeans or yangToAttributes, merge
300 ModuleMXBeanEntry moduleMXBeanEntry = result.get(moduleLocalNameFromXPath);
301 if (yangToAttributes != null && moduleMXBeanEntry.getAttributes() == null) {
302 moduleMXBeanEntry.setYangToAttributes(yangToAttributes);
303 } else if (runtimeBeans != null && moduleMXBeanEntry.getRuntimeBeans() == null) {
304 moduleMXBeanEntry.setRuntimeBeans(runtimeBeans);
306 checkState(Objects.equals(nullableDummyContainerName, moduleMXBeanEntry.getNullableDummyContainerName()),
307 "Mismatch in module " + moduleMXBeanEntry.toString() + " - dummy container must be present/missing in" +
308 " both state and configuration");
310 ModuleMXBeanEntry.ModuleMXBeanEntryInitial initial = new ModuleMXBeanEntry.ModuleMXBeanEntryInitialBuilder()
311 .setIdSchemaNode(moduleIdentity).setPackageName(packageName).setJavaNamePrefix(javaNamePrefix)
312 .setNamespace(currentModule.getNamespace().toString()).setqName(ModuleUtil.getQName(currentModule))
315 // construct ModuleMXBeanEntry
316 ModuleMXBeanEntry moduleMXBeanEntry = new ModuleMXBeanEntry(initial, yangToAttributes, providedServices,
319 moduleMXBeanEntry.setYangModuleName(currentModule.getName());
320 moduleMXBeanEntry.setYangModuleLocalname(moduleLocalNameFromXPath);
321 moduleMXBeanEntry.setNullableDummyContainerName(nullableDummyContainerName);
322 result.put(moduleLocalNameFromXPath, moduleMXBeanEntry);
326 private void checkUniqueRuntimeBeansGeneratedClasses(final Map<String, QName> uniqueGeneratedClassesNames,
327 final DataSchemaNode when, final Collection<RuntimeBeanEntry> runtimeBeans) {
328 for (RuntimeBeanEntry runtimeBean : runtimeBeans) {
329 final String javaNameOfRuntimeMXBean = runtimeBean.getJavaNameOfRuntimeMXBean();
330 if (uniqueGeneratedClassesNames.containsKey(javaNameOfRuntimeMXBean)) {
331 QName firstDefinedQName = uniqueGeneratedClassesNames.get(javaNameOfRuntimeMXBean);
332 throw new NameConflictException(javaNameOfRuntimeMXBean, firstDefinedQName, when.getQName());
334 uniqueGeneratedClassesNames.put(javaNameOfRuntimeMXBean, when.getQName());
338 private static void checkUniqueRuntimeBeanAttributesName(final ModuleMXBeanEntry mxBeanEntry,
339 final Map<String, QName> uniqueGeneratedClassesNames) {
340 for (RuntimeBeanEntry runtimeBeanEntry : mxBeanEntry.getRuntimeBeans()) {
341 for (String runtimeAttName : runtimeBeanEntry.getYangPropertiesToTypesMap().keySet()) {
342 if (mxBeanEntry.getAttributes().keySet().contains(runtimeAttName)) {
343 QName qName1 = uniqueGeneratedClassesNames.get(runtimeBeanEntry.getJavaNameOfRuntimeMXBean());
344 QName qName2 = uniqueGeneratedClassesNames.get(mxBeanEntry.getGloballyUniqueName());
345 throw new NameConflictException(runtimeAttName, qName1, qName2);
351 private void checkUniqueAttributesWithGeneratedClass(final Map<String, QName> uniqueGeneratedClassNames,
352 final QName parentQName, final Map<String, AttributeIfc> yangToAttributes) {
353 for (Map.Entry<String, AttributeIfc> attr : yangToAttributes.entrySet()) {
354 if (attr.getValue() instanceof TOAttribute) {
355 checkUniqueTOAttr(uniqueGeneratedClassNames, parentQName, (TOAttribute) attr.getValue());
356 } else if (attr.getValue() instanceof ListAttribute
357 && ((ListAttribute) attr.getValue()).getInnerAttribute() instanceof TOAttribute) {
358 checkUniqueTOAttr(uniqueGeneratedClassNames, parentQName,
359 (TOAttribute) ((ListAttribute) attr.getValue()).getInnerAttribute());
364 private void checkUniqueTOAttr(final Map<String, QName> uniqueGeneratedClassNames, final QName parentQName, final TOAttribute attr) {
365 final String upperCaseCamelCase = attr.getUpperCaseCammelCase();
366 if (uniqueGeneratedClassNames.containsKey(upperCaseCamelCase)) {
367 QName firstDefinedQName = uniqueGeneratedClassNames.get(upperCaseCamelCase);
368 throw new NameConflictException(upperCaseCamelCase, firstDefinedQName, parentQName);
370 uniqueGeneratedClassNames.put(upperCaseCamelCase, parentQName);
374 private Collection<RuntimeBeanEntry> fillRuntimeBeans(final DataNodeContainer dataNodeContainer, final Module currentModule,
375 final TypeProviderWrapper typeProviderWrapper, final String packageName, final String moduleLocalNameFromXPath,
376 final String javaNamePrefix) {
378 return RuntimeBeanEntry.extractClassNameToRuntimeBeanMap(packageName, dataNodeContainer, moduleLocalNameFromXPath,
379 typeProviderWrapper, javaNamePrefix, currentModule).values();
384 * Since each case statement within a module must provide unique child nodes, it is allowed to wrap
385 * the actual configuration with a container node with name equal to case name.
387 * @param choiceCaseNode state or configuration case statement
388 * @return either choiceCaseNode or its only child container
390 private <HAS_CHILDREN_AND_QNAME extends DataNodeContainer & SchemaNode> HAS_CHILDREN_AND_QNAME getDataNodeContainer(final ChoiceCaseNode choiceCaseNode) {
391 Collection<DataSchemaNode> childNodes = choiceCaseNode.getChildNodes();
392 if (childNodes.size() == 1) {
393 DataSchemaNode onlyChild = childNodes.iterator().next();
394 if (onlyChild instanceof ContainerSchemaNode) {
395 ContainerSchemaNode onlyContainer = (ContainerSchemaNode) onlyChild;
396 if (Objects.equals(onlyContainer.getQName().getLocalName(), choiceCaseNode.getQName().getLocalName())) {
397 // the actual configuration is inside dummy container
398 return (HAS_CHILDREN_AND_QNAME) onlyContainer;
402 return (HAS_CHILDREN_AND_QNAME) choiceCaseNode;
405 private Map<String, AttributeIfc> fillConfiguration(final DataNodeContainer dataNodeContainer, final Module currentModule,
406 final TypeProviderWrapper typeProviderWrapper, final Map<QName, ServiceInterfaceEntry> qNamesToSIEs,
407 final SchemaContext schemaContext, final String packageName) {
408 Map<String, AttributeIfc> yangToAttributes = new HashMap<>();
409 for (DataSchemaNode attrNode : dataNodeContainer.getChildNodes()) {
410 AttributeIfc attributeValue = getAttributeValue(attrNode, currentModule, qNamesToSIEs, typeProviderWrapper,
411 schemaContext, packageName);
412 yangToAttributes.put(attributeValue.getAttributeYangName(), attributeValue);
414 return yangToAttributes;
417 private Map<String, QName> findProvidedServices(final IdentitySchemaNode moduleIdentity, final Module currentModule,
418 final Map<QName, ServiceInterfaceEntry> qNamesToSIEs, final SchemaContext schemaContext) {
419 Map<String, QName> result = new HashMap<>();
420 for (UnknownSchemaNode unknownNode : moduleIdentity.getUnknownSchemaNodes()) {
421 if (ConfigConstants.PROVIDED_SERVICE_EXTENSION_QNAME.equals(unknownNode.getNodeType())) {
422 String prefixAndIdentityLocalName = unknownNode.getNodeParameter();
423 ServiceInterfaceEntry sie = findSIE(prefixAndIdentityLocalName, currentModule, qNamesToSIEs,
425 result.put(sie.getFullyQualifiedName(), sie.getQName());
431 private AttributeIfc getAttributeValue(final DataSchemaNode attrNode, final Module currentModule,
432 final Map<QName, ServiceInterfaceEntry> qNamesToSIEs, final TypeProviderWrapper typeProviderWrapper,
433 final SchemaContext schemaContext, final String packageName) {
435 if (attrNode instanceof LeafSchemaNode) {
437 LeafSchemaNode leaf = (LeafSchemaNode) attrNode;
438 return new JavaAttribute(leaf, typeProviderWrapper);
439 } else if (attrNode instanceof ContainerSchemaNode) {
441 ContainerSchemaNode containerSchemaNode = (ContainerSchemaNode) attrNode;
442 Optional<? extends AbstractDependencyAttribute> dependencyAttributeOptional = extractDependency(
443 containerSchemaNode, attrNode, currentModule, qNamesToSIEs, schemaContext);
444 if (dependencyAttributeOptional.isPresent()) {
445 return dependencyAttributeOptional.get();
447 return TOAttribute.create(containerSchemaNode, typeProviderWrapper, packageName);
450 } else if (attrNode instanceof LeafListSchemaNode) {
451 return ListAttribute.create((LeafListSchemaNode) attrNode, typeProviderWrapper);
452 } else if (attrNode instanceof ListSchemaNode) {
453 ListSchemaNode listSchemaNode = (ListSchemaNode) attrNode;
454 Optional<? extends AbstractDependencyAttribute> dependencyAttributeOptional = extractDependency(
455 listSchemaNode, attrNode, currentModule, qNamesToSIEs, schemaContext);
456 if (dependencyAttributeOptional.isPresent()) {
457 return dependencyAttributeOptional.get();
459 return ListAttribute.create(listSchemaNode, typeProviderWrapper, packageName);
462 throw new UnsupportedOperationException("Unknown configuration node " + attrNode.toString());
466 private Optional<? extends AbstractDependencyAttribute> extractDependency(final DataNodeContainer dataNodeContainer,
467 final DataSchemaNode attrNode, final Module currentModule, final Map<QName, ServiceInterfaceEntry> qNamesToSIEs,
468 final SchemaContext schemaContext) {
469 if (dataNodeContainer.getUses().size() == 1 && getChildNodeSizeWithoutUses(dataNodeContainer) == 0) {
471 UsesNode usesNode = dataNodeContainer.getUses().iterator().next();
472 checkState(usesNode.getRefines().size() == 1, "Unexpected 'refine' child node size of " + dataNodeContainer);
473 LeafSchemaNode refine = (LeafSchemaNode) usesNode.getRefines().values().iterator().next();
474 checkState(refine.getUnknownSchemaNodes().size() == 1, "Unexpected unknown schema node size of " + refine);
475 UnknownSchemaNode requiredIdentity = refine.getUnknownSchemaNodes().iterator().next();
476 checkState(ConfigConstants.REQUIRED_IDENTITY_EXTENSION_QNAME.equals(requiredIdentity.getNodeType()),
477 "Unexpected language extension " + requiredIdentity);
478 String prefixAndIdentityLocalName = requiredIdentity.getNodeParameter();
479 // import should point to a module
480 ServiceInterfaceEntry serviceInterfaceEntry = findSIE(prefixAndIdentityLocalName, currentModule,
481 qNamesToSIEs, schemaContext);
482 boolean mandatory = refine.getConstraints().isMandatory();
483 AbstractDependencyAttribute reference;
484 if (dataNodeContainer instanceof ContainerSchemaNode) {
485 reference = new DependencyAttribute(attrNode, serviceInterfaceEntry, mandatory,
486 attrNode.getDescription());
488 reference = new ListDependenciesAttribute(attrNode, serviceInterfaceEntry, mandatory,
489 attrNode.getDescription());
491 return Optional.of(reference);
493 return Optional.absent();
496 private int getChildNodeSizeWithoutUses(final DataNodeContainer csn) {
498 for (DataSchemaNode dsn : csn.getChildNodes()) {
499 if (dsn.isAddedByUses() == false) {
506 private ServiceInterfaceEntry findSIE(final String prefixAndIdentityLocalName, final Module currentModule,
507 final Map<QName, ServiceInterfaceEntry> qNamesToSIEs, final SchemaContext schemaContext) {
509 Matcher m = PREFIX_COLON_LOCAL_NAME.matcher(prefixAndIdentityLocalName);
513 // if there is a prefix, look for ModuleImport with this prefix. Get
514 // Module from SchemaContext
515 String prefix = m.group(1);
516 ModuleImport moduleImport = findModuleImport(currentModule, prefix);
517 foundModule = schemaContext.findModuleByName(moduleImport.getModuleName(), moduleImport.getRevision());
518 checkNotNull(foundModule, format("Module not found in SchemaContext by %s", moduleImport));
519 localSIName = m.group(2);
521 foundModule = currentModule; // no prefix => SIE is in currentModule
522 localSIName = prefixAndIdentityLocalName;
524 QName siQName = QName.create(foundModule.getNamespace(), foundModule.getRevision(), localSIName);
525 ServiceInterfaceEntry sie = qNamesToSIEs.get(siQName);
526 checkState(sie != null, "Cannot find referenced Service Interface by " + prefixAndIdentityLocalName);
530 private ModuleImport findModuleImport(final Module module, final String prefix) {
531 for (ModuleImport moduleImport : module.getImports()) {
532 if (moduleImport.getPrefix().equals(prefix)) {
536 throw new IllegalStateException(format("Import not found with prefix %s in %s", prefix, module));
540 static Matcher getWhenConditionMatcher(final String prefix, final RevisionAwareXPath whenConstraint) {
541 String xpathRegex = MODULE_CONDITION_XPATH_TEMPLATE.replace(MAGIC_STRING, prefix);
542 Pattern pattern = Pattern.compile(xpathRegex);
543 return pattern.matcher(whenConstraint.toString());
546 String getConfigModulePrefixFromImport(final Module currentModule) {
547 for (ModuleImport currentImport : currentModule.getImports()) {
548 if (currentImport.getModuleName().equals(ConfigConstants.CONFIG_MODULE)) {
549 return currentImport.getPrefix();
552 throw new IllegalArgumentException("Cannot find import " + ConfigConstants.CONFIG_MODULE + " in "