Package software.amazon.smithy.model

Class Model

  • All Implemented Interfaces:
    software.amazon.smithy.utils.ToSmithyBuilder<Model>
    public final class Model
extends java.lang.Object
implements software.amazon.smithy.utils.ToSmithyBuilder<Model>
    A Smithy model, including shapes, traits, custom traits, validators, suppressions and metadata.

    A "model" contains all of the loaded shapes (including their traits), validator definitions, suppression definitions, metadata properties, the Smithy version number, and all custom trait definitions. Each of these properties of a model contain a SourceLocation, allowing a reference back to where they were defined and how they were originally grouped into separate document files.

    • Field Detail

      • MODEL_VERSION

        public static final java.lang.String MODEL_VERSION
        Specifies the highest supported version of the IDL.
        See Also:
        Constant Field Values

    • Method Detail

      • builder

        public static Model.Builder builder()
        Builds an explicitly configured Smithy model.

        Note that the builder does not validate the correctness of the model. Use the assembler() method to build and validate a model.

        Returns:
        Returns a model builder.
        See Also:
        assembler()

      • assembler

        public static ModelAssembler assembler()
        Assembles and validates a Smithy model from files, nodes, and other disparate sources.
        Returns:
        Returns a model assembler.

      • assembler

        public static ModelAssembler assembler​(java.lang.ClassLoader classLoader)
        Creates a ModelAssembler that is configured to discover traits, validators, and built-in validators using the given ClassLoader.
        Parameters:
        classLoader - Class loader used to discover services.
        Returns:
        Returns a model assembler.

      • getShapeIndex

        @Deprecated
public ShapeIndex getShapeIndex()
        Deprecated.

      • getMetadataProperty

        public java.util.Optional<Node> getMetadataProperty​(java.lang.String name)
        Gets a metadata property by namespace and name.
        Parameters:
        name - Name of the property to retrieve.
        Returns:
        Returns the optional property.

      • getMetadata

        public java.util.Map<java.lang.String,​Node> getMetadata()
        Returns:
        Gets the unmodifiable metadata of the model across all namespaces.

      • getTraitDefinitions

        public java.util.Map<Shape,​TraitDefinition> getTraitDefinitions()
        Returns are trait shapes in the model as a map of Shape objects to their TraitDefinition traits.
        Returns:
        Returns all trait definitions in the model.

      • getTraitDefinition

        public java.util.Optional<TraitDefinition> getTraitDefinition​(ToShapeId traitId)
        Gets the trait definition of a specific trait shape ID.
        Parameters:
        traitId - ID of the shape to get the trait definition of.
        Returns:
        Returns the optionally found trait definition.

      • getTraitDefinition

        public java.util.Optional<TraitDefinition> getTraitDefinition​(java.lang.String traitId)
        Gets the trait definition of a specific trait shape ID.
        Parameters:
        traitId - ID of the shape to get the trait definition of.
        Returns:
        Returns the optionally found trait definition.

      • getTraitShapes

        public java.util.Collection<Shape> getTraitShapes()
        Returns:
        Returns all trait definition shapes in the model.

      • getShape

        public java.util.Optional<Shape> getShape​(ShapeId id)
        Attempts to retrieve a Shape by ShapeId.
        Parameters:
        id - Shape to retrieve by ID.
        Returns:
        Returns the optional shape.

      • expectShape

        public Shape expectShape​(ShapeId id)
        Attempts to retrieve a Shape by ShapeId and throws if not found.
        Parameters:
        id - Shape to retrieve by ID.
        Returns:
        Returns the shape.
        Throws:
        ExpectationNotMetException - if the shape is not found.

      • expectShape

        public <T extends Shape> T expectShape​(ShapeId id,
                                       java.lang.Class<T> type)
        Attempts to retrieve a Shape by ShapeId and throws if not found or if the shape is not of the expected type.
        Parameters:
        id - Shape to retrieve by ID.
        type - Shape type to expect and convert to.
        Returns:
        Returns the shape.
        Throws:
        ExpectationNotMetException - if the shape is not found or is not the expected type.

      • shapes

        public java.util.stream.Stream<Shape> shapes()
        Gets a stream of Shapes in the index.
        Returns:
        Returns a stream of shapes.

      • shapes

        public <T extends Shape> java.util.stream.Stream<T> shapes​(java.lang.Class<T> shapeType)
        Gets a stream of shapes in the index of a specific type T.

        The provided shapeType class must exactly match the class of a shape in the shape index in order to be returned from this method; that is, the provided class must be a concrete subclass of Shape and not an abstract class like NumberShape.

        Type Parameters:
        T - Shape type to stream from the index.
        Parameters:
        shapeType - Shape type T to retrieve.
        Returns:
        A stream of shapes of T matching shapeType.

      • toSet

        public java.util.Set<Shape> toSet()
        Converts the model to an immutable Set of shapes.
        Returns:
        Returns an unmodifiable set of Shapes in the index.

      • equals

        public boolean equals​(java.lang.Object other)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • toBuilder

        public Model.Builder toBuilder()
        Specified by:
        toBuilder in interface software.amazon.smithy.utils.ToSmithyBuilder<Model>

      • getKnowledge

        public <T extends KnowledgeIndex> T getKnowledge​(java.lang.Class<T> type)
        Gets a computed knowledge index of a specific type for the model.

        If a KnowledgeIndex of the given type has not yet been computed, one will be created using a constructor of the given type that accepts a Model. Computed knowledge indexes are cached and returned on subsequent retrievals.

        Using this method is preferred over directly instantiating instances of a KnowledgeIndex if the KnowledgeIndex required in various unrelated code paths where passing around an instance of a KnowledgeIndex is not practical or impossible.

        Type Parameters:
        T - The type of knowledge index to retrieve.
        Parameters:
        type - Type of knowledge index to retrieve.
        Returns:
        Returns the computed knowledge index.