Search in sources :

Example 1 with ElementDeclaration

use of org.mule.runtime.app.declaration.api.ElementDeclaration in project mule by mulesoft.

the class DeclarationBasedElementModelFactory method create.

public <T> Optional<DslElementModel<T>> create(ElementDeclaration declaration) {
    setupCurrentExtensionContext(declaration.getDeclaringExtension());
    final Function<NamedObject, Boolean> equalsName = (named) -> named.getName().equals(declaration.getName());
    if (declaration instanceof TopLevelParameterDeclaration) {
        return createFromType((TopLevelParameterDeclaration) declaration);
    }
    Reference<DslElementModel> elementModel = new Reference<>();
    new ExtensionWalker() {

        @Override
        protected void onConfiguration(ConfigurationModel model) {
            if (equalsName.apply(model) && declaration instanceof ConfigurationElementDeclaration) {
                elementModel.set(createConfigurationElement(model, (ConfigurationElementDeclaration) declaration));
                stop();
            }
        }

        @Override
        protected void onOperation(HasOperationModels owner, OperationModel model) {
            if (equalsName.apply(model) && declaration instanceof OperationElementDeclaration) {
                elementModel.set(createComponentElement(model, (OperationElementDeclaration) declaration));
                stop();
            }
        }

        @Override
        protected void onConstruct(HasConstructModels owner, ConstructModel model) {
            if (equalsName.apply(model) && declaration instanceof ConstructElementDeclaration) {
                elementModel.set(createComponentElement(model, (ConstructElementDeclaration) declaration));
                stop();
            }
        }

        @Override
        protected void onSource(HasSourceModels owner, SourceModel model) {
            if (equalsName.apply(model) && declaration instanceof SourceElementDeclaration) {
                elementModel.set(createComponentElement(model, (SourceElementDeclaration) declaration));
                stop();
            }
        }
    }.walk(currentExtension);
    if (LOGGER.isDebugEnabled() && elementModel.get() == null) {
        LOGGER.debug(format("No model found with name [%s] of type [%s] for extension [%s]", declaration.getName(), declaration.getClass().getName(), declaration.getDeclaringExtension()));
    }
    return Optional.ofNullable(elementModel.get());
}
Also used : ExtensionMetadataTypeUtils.getId(org.mule.runtime.extension.api.util.ExtensionMetadataTypeUtils.getId) OperationModel(org.mule.runtime.api.meta.model.operation.OperationModel) NamedObject(org.mule.runtime.api.meta.NamedObject) LoggerFactory(org.slf4j.LoggerFactory) ParameterizedElementDeclaration(org.mule.runtime.app.declaration.api.ParameterizedElementDeclaration) ComposableModel(org.mule.runtime.api.meta.model.ComposableModel) SourceModel(org.mule.runtime.api.meta.model.source.SourceModel) ArrayType(org.mule.metadata.api.model.ArrayType) KEY_ATTRIBUTE_NAME(org.mule.runtime.internal.dsl.DslConstants.KEY_ATTRIBUTE_NAME) Map(java.util.Map) DslResolvingContext(org.mule.runtime.api.dsl.DslResolvingContext) ParameterSimpleValue(org.mule.runtime.app.declaration.api.fluent.ParameterSimpleValue) ParameterGroupModel(org.mule.runtime.api.meta.model.parameter.ParameterGroupModel) ParameterValueVisitor(org.mule.runtime.app.declaration.api.ParameterValueVisitor) ClassTypeLoader(org.mule.metadata.api.ClassTypeLoader) ConstructModel(org.mule.runtime.api.meta.model.construct.ConstructModel) DslElementModelFactory(org.mule.runtime.config.api.dsl.model.DslElementModelFactory) ParameterElementDeclaration(org.mule.runtime.app.declaration.api.ParameterElementDeclaration) ExtensionModelUtils.isContent(org.mule.runtime.extension.api.util.ExtensionModelUtils.isContent) ExtensionMetadataTypeUtils.isMap(org.mule.runtime.extension.api.util.ExtensionMetadataTypeUtils.isMap) ObjectType(org.mule.metadata.api.model.ObjectType) ElementDeclarer.newObjectValue(org.mule.runtime.app.declaration.api.fluent.ElementDeclarer.newObjectValue) InternalComponentConfiguration(org.mule.runtime.dsl.internal.component.config.InternalComponentConfiguration) String.format(java.lang.String.format) MetadataTypeVisitor(org.mule.metadata.api.visitor.MetadataTypeVisitor) NAME_ATTRIBUTE_NAME(org.mule.runtime.internal.dsl.DslConstants.NAME_ATTRIBUTE_NAME) NestedRouteModel(org.mule.runtime.api.meta.model.nested.NestedRouteModel) List(java.util.List) StringUtils.isNotBlank(org.apache.commons.lang3.StringUtils.isNotBlank) ObjectFieldType(org.mule.metadata.api.model.ObjectFieldType) ConstructElementDeclaration(org.mule.runtime.app.declaration.api.ConstructElementDeclaration) HasOperationModels(org.mule.runtime.api.meta.model.operation.HasOperationModels) DslElementSyntax(org.mule.runtime.extension.api.dsl.syntax.DslElementSyntax) ElementDeclaration(org.mule.runtime.app.declaration.api.ElementDeclaration) LayoutModel(org.mule.runtime.api.meta.model.display.LayoutModel) ConfigurationElementDeclaration(org.mule.runtime.app.declaration.api.ConfigurationElementDeclaration) ExtensionModelUtils.isInfrastructure(org.mule.runtime.extension.api.util.ExtensionModelUtils.isInfrastructure) MetadataType(org.mule.metadata.api.model.MetadataType) DslSyntaxResolver(org.mule.runtime.extension.api.dsl.syntax.resolver.DslSyntaxResolver) Optional(java.util.Optional) ComponentIdentifier.builder(org.mule.runtime.api.component.ComponentIdentifier.builder) ReferableElementDeclaration(org.mule.runtime.app.declaration.api.ReferableElementDeclaration) ExtensionMetadataTypeUtils.getAlias(org.mule.runtime.extension.api.util.ExtensionMetadataTypeUtils.getAlias) ExtensionModelUtils.isRequired(org.mule.runtime.extension.api.util.ExtensionModelUtils.isRequired) Optional.empty(java.util.Optional.empty) ParameterModel(org.mule.runtime.api.meta.model.parameter.ParameterModel) SourceElementDeclaration(org.mule.runtime.app.declaration.api.SourceElementDeclaration) CONFIG_ATTRIBUTE_NAME(org.mule.runtime.internal.dsl.DslConstants.CONFIG_ATTRIBUTE_NAME) ConnectionProviderModel(org.mule.runtime.api.meta.model.connection.ConnectionProviderModel) HasConstructModels(org.mule.runtime.api.meta.model.construct.HasConstructModels) ComponentModel(org.mule.runtime.api.meta.model.ComponentModel) ExtensionsTypeLoaderFactory(org.mule.runtime.extension.api.declaration.type.ExtensionsTypeLoaderFactory) RouteElementDeclaration(org.mule.runtime.app.declaration.api.RouteElementDeclaration) Preconditions.checkArgument(org.mule.runtime.api.util.Preconditions.checkArgument) VALUE_ATTRIBUTE_NAME(org.mule.runtime.internal.dsl.DslConstants.VALUE_ATTRIBUTE_NAME) ComponentConfiguration(org.mule.runtime.dsl.api.component.config.ComponentConfiguration) Function(java.util.function.Function) ExtensionMetadataTypeUtils.isFlattenedParameterGroup(org.mule.runtime.extension.api.util.ExtensionMetadataTypeUtils.isFlattenedParameterGroup) ParameterListValue(org.mule.runtime.app.declaration.api.fluent.ParameterListValue) DslElementSyntaxBuilder(org.mule.runtime.extension.api.dsl.syntax.DslElementSyntaxBuilder) ExtensionModelUtils.getDefaultValue(org.mule.runtime.extension.api.util.ExtensionModelUtils.getDefaultValue) ParameterObjectValue(org.mule.runtime.app.declaration.api.fluent.ParameterObjectValue) Stream.concat(java.util.stream.Stream.concat) ParameterizedModel(org.mule.runtime.api.meta.model.parameter.ParameterizedModel) Logger(org.slf4j.Logger) ParameterValue(org.mule.runtime.app.declaration.api.ParameterValue) Stream.of(java.util.stream.Stream.of) ConfigurationModel(org.mule.runtime.api.meta.model.config.ConfigurationModel) ConnectionElementDeclaration(org.mule.runtime.app.declaration.api.ConnectionElementDeclaration) ExtensionModel(org.mule.runtime.api.meta.model.ExtensionModel) DslElementModel(org.mule.runtime.config.api.dsl.model.DslElementModel) Collectors.toList(java.util.stream.Collectors.toList) TopLevelParameterDeclaration(org.mule.runtime.app.declaration.api.TopLevelParameterDeclaration) ExtensionWalker(org.mule.runtime.api.meta.model.util.ExtensionWalker) Reference(org.mule.runtime.api.util.Reference) OperationElementDeclaration(org.mule.runtime.app.declaration.api.OperationElementDeclaration) IS_CDATA(org.mule.runtime.config.internal.dsl.processor.xml.XmlCustomAttributeHandler.IS_CDATA) ComponentElementDeclaration(org.mule.runtime.app.declaration.api.ComponentElementDeclaration) ComponentIdentifier(org.mule.runtime.api.component.ComponentIdentifier) ParameterGroupElementDeclaration(org.mule.runtime.app.declaration.api.ParameterGroupElementDeclaration) HasSourceModels(org.mule.runtime.api.meta.model.source.HasSourceModels) HasOperationModels(org.mule.runtime.api.meta.model.operation.HasOperationModels) ConfigurationModel(org.mule.runtime.api.meta.model.config.ConfigurationModel) Reference(org.mule.runtime.api.util.Reference) ExtensionWalker(org.mule.runtime.api.meta.model.util.ExtensionWalker) NamedObject(org.mule.runtime.api.meta.NamedObject) SourceModel(org.mule.runtime.api.meta.model.source.SourceModel) ConstructModel(org.mule.runtime.api.meta.model.construct.ConstructModel) ConstructElementDeclaration(org.mule.runtime.app.declaration.api.ConstructElementDeclaration) ConfigurationElementDeclaration(org.mule.runtime.app.declaration.api.ConfigurationElementDeclaration) HasConstructModels(org.mule.runtime.api.meta.model.construct.HasConstructModels) SourceElementDeclaration(org.mule.runtime.app.declaration.api.SourceElementDeclaration) OperationElementDeclaration(org.mule.runtime.app.declaration.api.OperationElementDeclaration) DslElementModel(org.mule.runtime.config.api.dsl.model.DslElementModel) TopLevelParameterDeclaration(org.mule.runtime.app.declaration.api.TopLevelParameterDeclaration) HasSourceModels(org.mule.runtime.api.meta.model.source.HasSourceModels) OperationModel(org.mule.runtime.api.meta.model.operation.OperationModel)

Example 2 with ElementDeclaration

use of org.mule.runtime.app.declaration.api.ElementDeclaration in project mule by mulesoft.

the class ApplicationModel method convertArtifactDeclarationToComponentModel.

private void convertArtifactDeclarationToComponentModel(Set<ExtensionModel> extensionModels, ArtifactDeclaration artifactDeclaration) {
    if (artifactDeclaration != null && !extensionModels.isEmpty()) {
        ExtensionModel muleModel = MuleExtensionModelProvider.getExtensionModel();
        if (!extensionModels.contains(muleModel)) {
            extensionModels = new HashSet<>(extensionModels);
            extensionModels.add(muleModel);
        }
        DslElementModelFactory elementFactory = DslElementModelFactory.getDefault(DslResolvingContext.getDefault(extensionModels));
        ComponentModel rootComponent = new ComponentModel.Builder().setIdentifier(ComponentIdentifier.builder().namespace(CORE_PREFIX).name(CORE_PREFIX).build()).build();
        AtomicBoolean atLeastOneComponentAdded = new AtomicBoolean(false);
        artifactDeclaration.getGlobalElements().stream().map(e -> elementFactory.create((ElementDeclaration) e)).filter(Optional::isPresent).map(e -> e.get().getConfiguration()).forEach(config -> config.ifPresent(c -> {
            atLeastOneComponentAdded.set(true);
            ComponentModel componentModel = convertComponentConfiguration(c, true);
            componentModel.setParent(rootComponent);
            rootComponent.getInnerComponents().add(componentModel);
        }));
        if (atLeastOneComponentAdded.get()) {
            this.muleComponentModels.add(rootComponent);
        }
    }
}
Also used : ResourceProvider(org.mule.runtime.config.api.dsl.model.ResourceProvider) MacroExpansionModulesModel(org.mule.runtime.config.internal.dsl.model.extension.xml.MacroExpansionModulesModel) CORE_PREFIX(org.mule.runtime.internal.dsl.DslConstants.CORE_PREFIX) MULE_ROOT_ELEMENT(org.mule.runtime.config.api.dsl.CoreDslConstants.MULE_ROOT_ELEMENT) Optional.of(java.util.Optional.of) InitialisationException(org.mule.runtime.api.lifecycle.InitialisationException) ConfigurationProperty(org.mule.runtime.config.api.dsl.model.properties.ConfigurationProperty) Collections.singletonList(java.util.Collections.singletonList) ClassUtils(org.apache.commons.lang3.ClassUtils) DefaultConfigurationParameters(org.mule.runtime.config.internal.dsl.model.DefaultConfigurationParameters) Arrays.asList(java.util.Arrays.asList) Map(java.util.Map) MULE_EE_DOMAIN_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.MULE_EE_DOMAIN_IDENTIFIER) DslResolvingContext(org.mule.runtime.api.dsl.DslResolvingContext) DslElementModelFactory(org.mule.runtime.config.api.dsl.model.DslElementModelFactory) ERROR_HANDLER_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.ERROR_HANDLER_IDENTIFIER) ComponentModelReader(org.mule.runtime.config.internal.dsl.model.ComponentModelReader) CompositeConfigurationPropertiesProvider(org.mule.runtime.config.internal.dsl.model.config.CompositeConfigurationPropertiesProvider) PropertiesResolverConfigurationProperties(org.mule.runtime.config.internal.dsl.model.config.PropertiesResolverConfigurationProperties) EnvironmentPropertiesConfigurationProvider(org.mule.runtime.config.internal.dsl.model.config.EnvironmentPropertiesConfigurationProvider) MULE_DOMAIN_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.MULE_DOMAIN_IDENTIFIER) DEFAULT_EXPRESSION_PREFIX(org.mule.runtime.core.api.el.ExpressionManager.DEFAULT_EXPRESSION_PREFIX) ImmutableSet(com.google.common.collect.ImmutableSet) ComponentModelHelper.resolveComponentType(org.mule.runtime.config.internal.dsl.spring.ComponentModelHelper.resolveComponentType) MapConfigurationPropertiesProvider(org.mule.runtime.config.internal.dsl.model.config.MapConfigurationPropertiesProvider) TypedComponentIdentifier(org.mule.runtime.api.component.TypedComponentIdentifier) ImmutableMap(com.google.common.collect.ImmutableMap) Set(java.util.Set) UNKNOWN(org.mule.runtime.api.component.TypedComponentIdentifier.ComponentType.UNKNOWN) MuleRuntimeException(org.mule.runtime.api.exception.MuleRuntimeException) ServiceLoader(java.util.ServiceLoader) SOURCE_TYPE(org.mule.runtime.config.internal.dsl.spring.BeanDefinitionFactory.SOURCE_TYPE) NameValidationUtil.verifyStringDoesNotContainsReservedCharacters(org.mule.runtime.internal.util.NameValidationUtil.verifyStringDoesNotContainsReservedCharacters) String.format(java.lang.String.format) FileConfigurationPropertiesProvider(org.mule.runtime.config.internal.dsl.model.config.FileConfigurationPropertiesProvider) ERROR_HANDLER(org.mule.runtime.config.api.dsl.CoreDslConstants.ERROR_HANDLER) I18nMessageFactory(org.mule.runtime.api.i18n.I18nMessageFactory) XmlCustomAttributeHandler(org.mule.runtime.config.internal.dsl.processor.xml.XmlCustomAttributeHandler) ComponentBuildingDefinition(org.mule.runtime.dsl.api.component.ComponentBuildingDefinition) List(java.util.List) ElementDeclaration(org.mule.runtime.app.declaration.api.ElementDeclaration) GlobalPropertyConfigurationPropertiesProvider(org.mule.runtime.config.internal.dsl.model.config.GlobalPropertyConfigurationPropertiesProvider) Optional(java.util.Optional) QName(javax.xml.namespace.QName) MuleExtensionModelProvider(org.mule.runtime.core.api.extension.MuleExtensionModelProvider) ComponentIdentifier.builder(org.mule.runtime.api.component.ComponentIdentifier.builder) Optional.empty(java.util.Optional.empty) ComponentBuildingDefinitionRegistry(org.mule.runtime.config.api.dsl.model.ComponentBuildingDefinitionRegistry) DefaultComponentLocation(org.mule.runtime.dsl.api.component.config.DefaultComponentLocation) AtomicBoolean(java.util.concurrent.atomic.AtomicBoolean) HashMap(java.util.HashMap) LifecycleUtils.initialiseIfNeeded(org.mule.runtime.core.api.lifecycle.LifecycleUtils.initialiseIfNeeded) ConfigurationProperties(org.mule.runtime.api.component.ConfigurationProperties) ComponentConfiguration(org.mule.runtime.dsl.api.component.config.ComponentConfiguration) ComponentLocationVisitor(org.mule.runtime.config.internal.dsl.model.ComponentLocationVisitor) NameUtils.pluralize(org.mule.runtime.extension.api.util.NameUtils.pluralize) ArrayList(java.util.ArrayList) HashSet(java.util.HashSet) MULE_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.MULE_IDENTIFIER) ConfigurationPropertiesProvider(org.mule.runtime.config.api.dsl.model.properties.ConfigurationPropertiesProvider) ArtifactDeclaration(org.mule.runtime.app.declaration.api.ArtifactDeclaration) Component(org.mule.runtime.api.component.Component) Node(org.w3c.dom.Node) BiConsumer(java.util.function.BiConsumer) FLOW_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.FLOW_IDENTIFIER) RuntimeConfigurationException(org.mule.runtime.config.internal.dsl.model.config.RuntimeConfigurationException) ConfigLine(org.mule.runtime.config.api.dsl.processor.ConfigLine) ConfigFile(org.mule.runtime.config.api.dsl.processor.ConfigFile) DefaultConfigurationProperty(org.mule.runtime.config.internal.dsl.model.config.DefaultConfigurationProperty) LinkedList(java.util.LinkedList) Collections.emptyMap(java.util.Collections.emptyMap) Collections.emptySet(java.util.Collections.emptySet) ConfigurationException(org.mule.runtime.core.api.config.ConfigurationException) Optional.ofNullable(java.util.Optional.ofNullable) I18nMessageFactory.createStaticMessage(org.mule.runtime.api.i18n.I18nMessageFactory.createStaticMessage) NameUtils.hyphenize(org.mule.runtime.extension.api.util.NameUtils.hyphenize) ConfigurationParameters(org.mule.runtime.config.api.dsl.model.ConfigurationParameters) ExtensionModelHelper(org.mule.runtime.config.internal.dsl.model.ExtensionModelHelper) ArtifactConfig(org.mule.runtime.config.api.dsl.processor.ArtifactConfig) DefaultConfigurationPropertiesResolver(org.mule.runtime.config.internal.dsl.model.config.DefaultConfigurationPropertiesResolver) Joiner.on(com.google.common.base.Joiner.on) ObjectTypeVisitor(org.mule.runtime.config.internal.dsl.processor.ObjectTypeVisitor) AbstractComponent(org.mule.runtime.api.component.AbstractComponent) ExtensionModel(org.mule.runtime.api.meta.model.ExtensionModel) ConfigurationPropertiesResolver(org.mule.runtime.config.internal.dsl.model.config.ConfigurationPropertiesResolver) FLOW_REF_IDENTIFIER(org.mule.runtime.config.api.dsl.CoreDslConstants.FLOW_REF_IDENTIFIER) Consumer(java.util.function.Consumer) Collectors.toList(java.util.stream.Collectors.toList) ConfigurationPropertiesProviderFactory(org.mule.runtime.config.api.dsl.model.properties.ConfigurationPropertiesProviderFactory) StringUtils.isBlank(org.apache.commons.lang3.StringUtils.isBlank) CollectionUtils.disjunction(org.apache.commons.collections.CollectionUtils.disjunction) ComponentIdentifier(org.mule.runtime.api.component.ComponentIdentifier) ANY_IDENTIFIER(org.mule.runtime.core.api.exception.Errors.Identifiers.ANY_IDENTIFIER) DslElementModelFactory(org.mule.runtime.config.api.dsl.model.DslElementModelFactory) AtomicBoolean(java.util.concurrent.atomic.AtomicBoolean) Optional(java.util.Optional) ExtensionModel(org.mule.runtime.api.meta.model.ExtensionModel)

Example 3 with ElementDeclaration

use of org.mule.runtime.app.declaration.api.ElementDeclaration in project mule by mulesoft.

the class DefaultArtifactDeclarationXmlSerializer method serializeArtifact.

private String serializeArtifact(ArtifactDeclaration artifact) {
    checkArgument(artifact != null, "The artifact to serialize cannot be null");
    try {
        Document doc = createAppDocument(artifact);
        XmlDslElementModelConverter toXmlConverter = XmlDslElementModelConverter.getDefault(doc);
        DslElementModelFactory modelResolver = DslElementModelFactory.getDefault(context);
        artifact.getGlobalElements().forEach(declaration -> appendChildElement(toXmlConverter, doc.getDocumentElement(), modelResolver, (ElementDeclaration) declaration));
        List<String> cDataElements = getCDataElements(doc.getDocumentElement());
        // write the content into xml file
        TransformerFactory transformerFactory = XMLSecureFactories.createDefault().getTransformerFactory();
        Transformer transformer = transformerFactory.newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, join(cDataElements, " "));
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
        DOMSource source = new DOMSource(doc);
        StringWriter writer = new StringWriter();
        transformer.transform(source, new StreamResult(writer));
        return writer.getBuffer().toString();
    } catch (Exception e) {
        throw new MuleRuntimeException(createStaticMessage("Failed to serialize the declaration for the artifact [" + artifact.getName() + "]: " + e.getMessage()), e);
    }
}
Also used : DslElementModelFactory(org.mule.runtime.config.api.dsl.model.DslElementModelFactory) DOMSource(javax.xml.transform.dom.DOMSource) TransformerFactory(javax.xml.transform.TransformerFactory) Transformer(javax.xml.transform.Transformer) StreamResult(javax.xml.transform.stream.StreamResult) Document(org.w3c.dom.Document) MuleRuntimeException(org.mule.runtime.api.exception.MuleRuntimeException) ParserConfigurationException(javax.xml.parsers.ParserConfigurationException) StringWriter(java.io.StringWriter) MuleRuntimeException(org.mule.runtime.api.exception.MuleRuntimeException) XmlDslElementModelConverter(org.mule.runtime.config.api.dsl.model.XmlDslElementModelConverter) ElementDeclaration(org.mule.runtime.app.declaration.api.ElementDeclaration)

Aggregations

String.format (java.lang.String.format)2 List (java.util.List)2 Map (java.util.Map)2 Optional (java.util.Optional)2 Optional.empty (java.util.Optional.empty)2 Collectors.toList (java.util.stream.Collectors.toList)2 ComponentIdentifier (org.mule.runtime.api.component.ComponentIdentifier)2 MuleRuntimeException (org.mule.runtime.api.exception.MuleRuntimeException)2 ElementDeclaration (org.mule.runtime.app.declaration.api.ElementDeclaration)2 DslElementModelFactory (org.mule.runtime.config.api.dsl.model.DslElementModelFactory)2 Joiner.on (com.google.common.base.Joiner.on)1 ImmutableMap (com.google.common.collect.ImmutableMap)1 ImmutableSet (com.google.common.collect.ImmutableSet)1 StringWriter (java.io.StringWriter)1 ArrayList (java.util.ArrayList)1 Arrays.asList (java.util.Arrays.asList)1 Collections.emptyMap (java.util.Collections.emptyMap)1 Collections.emptySet (java.util.Collections.emptySet)1 Collections.singletonList (java.util.Collections.singletonList)1 HashMap (java.util.HashMap)1