graphql.language.InterfaceTypeDefinition Java Examples

private void addInnerInterfaceType( InterfaceTypeDefinition type, SrcLinkedClass enclosingType )
{
  String identifier = makeIdentifier( type.getName(), false );
  String fqn = getFqn() + '.' + identifier;
  SrcLinkedClass srcClass = new SrcLinkedClass( fqn, enclosingType, Interface )
    .addInterface( IJsonBindingsBacked.class.getSimpleName() )
    .addAnnotation( new SrcAnnotationExpression( Structural.class.getSimpleName() )
      .addArgument( "factoryClass", Class.class, identifier + ".ProxyFactory.class" ) )
    .modifiers( Modifier.PUBLIC );
  addUnionInterfaces( type, srcClass );
  addActualNameAnnotation( srcClass, type.getName(), false );
  addSourcePositionAnnotation( srcClass, type, srcClass );
  addProxyFactory( srcClass );
  List<FieldDefinition> fieldDefinitions = type.getFieldDefinitions();
  for( FieldDefinition member: fieldDefinitions )
  {
    addMember( srcClass, member, name -> fieldDefinitions.stream().anyMatch( f -> f.getName().equals( name ) ) );
  }
  addInterfaceExtensions( type, srcClass );
  enclosingType.addInnerClass( srcClass );
}
 

private void addInterfaceExtensions( InterfaceTypeDefinition type, SrcLinkedClass srcClass )
{
  List<FieldDefinition> baseFieldDefinitions = type.getFieldDefinitions();
  List<InterfaceTypeExtensionDefinition> interfaceExtensions = _registry.interfaceTypeExtensions().get( type.getName() );
  if( interfaceExtensions != null )
  {
    for( InterfaceTypeExtensionDefinition ext: interfaceExtensions )
    {
      List<FieldDefinition> extFieldDefinitions = ext.getFieldDefinitions();
      for( FieldDefinition member: extFieldDefinitions )
      {
        addMember( srcClass, member,
          name ->
            baseFieldDefinitions.stream().anyMatch( f -> f.getName().equals( name ) ) ||
            extFieldDefinitions.stream().anyMatch( f -> f.getName().equals( name ) )
        );
      }
    }
  }
}
 

private static List<Directive> getDirectives(Definition def) {
    if ( def instanceof ObjectTypeDefinition ) {
        return ((ObjectTypeDefinition)def).getDirectives();
    } if ( def instanceof InterfaceTypeDefinition ) {
        return ((InterfaceTypeDefinition)def).getDirectives();
    } if ( def instanceof EnumTypeDefinition ) {
        return ((EnumTypeDefinition)def).getDirectives();
    } if ( def instanceof ScalarTypeDefinition ) {
        return ((ScalarTypeDefinition)def).getDirectives();
    } if ( def instanceof UnionTypeDefinition ) {
        return ((UnionTypeDefinition)def).getDirectives();
    } if ( def instanceof InputObjectTypeDefinition ) {
        return ((InputObjectTypeDefinition)def).getDirectives();
    } if ( def instanceof SchemaDefinition ) {
        return ((SchemaDefinition)def).getDirectives();
    }
    return Collections.emptyList();
}
 

public synchronized List<String> getImports() {
    if ( null == imports ) {
        Definition def = typeEntry.getDefinition();
        Set<String> names = new TreeSet<String>();
        if ( isObjectType() ) {
            addImports(names, (ObjectTypeDefinition)def);
        } else if ( isInterfaceType() ) {
            addImports(names, (InterfaceTypeDefinition)def);
        } else if ( isInputObjectType() ) {
            addImports(names, (InputObjectTypeDefinition)def);
        } else if ( isUnionType() ) {
            addImports(names, (UnionTypeDefinition)def);
        } else if ( isEnumType() ) {
            addImports(names, (EnumTypeDefinition)def);
        } else if ( isSchemaType() ) {
            addImports(names, (SchemaDefinition)def);
        }
        imports = new ArrayList<>(names);
    }
    return imports;
}
 

public synchronized List<Field> getFields() {
    if ( null == fields ) {
        Definition def = typeEntry.getDefinition();
        if ( isObjectType() ) {
            fields = getFields((ObjectTypeDefinition)def);
        } else if ( isInterfaceType() ) {
            fields = getFields((InterfaceTypeDefinition)def);
        } else if ( isInputObjectType() ) {
            fields = getFields((InputObjectTypeDefinition)def);
        } else if ( isUnionType() ) {
            fields = getFields((UnionTypeDefinition)def);
        } else if ( isEnumType() ) {
            fields = getFields((EnumTypeDefinition)def);
        } else if ( isSchemaType() ) {
            fields = getFields((SchemaDefinition)def);
        } else {
            fields = Collections.emptyList();
        }
    }
    return fields;
}
 

/**
 * Creates the {@link GraphQLInterfaceType} dynamically for the given interface
 *
 * @param clazz class to be introspected
 * @return {@link GraphQLInterfaceType} object exposed via graphQL
 */
private GraphQLInterfaceType createInterfaceType(Class clazz) {
    List<GraphQLFieldDefinition> fields = Arrays.stream(clazz.getMethods())
            .filter(ReflectionUtil::eligibleMethod)
            .sorted(Comparator.comparing(Method::getName))
            .map(method -> getGraphQLFieldDefinition(clazz, method))
            .collect(Collectors.toList());

    codeRegistryBuilder.typeResolver(clazz.getSimpleName(), typeRegistry);

    return newInterface()
            .name(clazz.getSimpleName())
            .definition(new InterfaceTypeDefinition(clazz.getCanonicalName()))
            .description(ReflectionUtil.getDescriptionFromAnnotatedElement(clazz))
            .fields(fields)
            .build();
}
 

private void addInnerTypes( SrcLinkedClass srcClass )
{
  mapUnionMemberToUnions();

  for( TypeDefinition type: _registry.types().values() )
  {
    if( type instanceof ObjectTypeDefinition )
    {
      addInnerObjectType( (ObjectTypeDefinition)type, srcClass );
    }
    else if( type instanceof InterfaceTypeDefinition )
    {
      addInnerInterfaceType( (InterfaceTypeDefinition)type, srcClass );
    }
    else if( type instanceof EnumTypeDefinition )
    {
      addInnerEnumType( (EnumTypeDefinition)type, srcClass );
    }
    else if( type instanceof InputObjectTypeDefinition )
    {
      addInnerInputType( (InputObjectTypeDefinition)type, srcClass );
    }
    else if( type instanceof UnionTypeDefinition )
    {
      addInnerUnionType( (UnionTypeDefinition)type, srcClass );
    }
  }
}
 

private String findLub( UnionTypeDefinition typeDef )
{
  Set<Set<InterfaceTypeDefinition>> ifaces = new HashSet<>();
  for( Type t: typeDef.getMemberTypes() )
  {
    TypeDefinition td = findTypeDefinition( t );
    if( td instanceof ObjectTypeDefinition )
    {
      ifaces.add( ((ObjectTypeDefinition)td).getImplements().stream()
        .map( type -> (InterfaceTypeDefinition)findTypeDefinition( type ) )
        .collect( Collectors.toSet() ) );
    }
    else if( td instanceof InterfaceTypeDefinition )
    {
      ifaces.add( Collections.singleton( (InterfaceTypeDefinition)td ) );
    }
  }
  //noinspection OptionalGetWithoutIsPresent
  Set<InterfaceTypeDefinition> intersection =
    ifaces.stream().reduce( ( p1, p2 ) -> {
      p1.retainAll( p2 );
      return p1;
    } ).get();
  if( intersection.isEmpty() )
  {
    // no common interface
    return null;
  }
  else
  {
    // can only use one
    return intersection.iterator().next().getName();
  }
}
 

@SuppressWarnings("unused")
private String getStartSymbol( Node node )
{
  String start = "";
  if( node instanceof TypeDefinition )
  {
    if( node instanceof ObjectTypeDefinition )
    {
      start = "type";
    }
    else if( node instanceof EnumTypeDefinition )
    {
      start = "enum";
    }
    else if( node instanceof InputObjectTypeDefinition )
    {
      start = "input";
    }
    else if( node instanceof InterfaceTypeDefinition )
    {
      start = "interface";
    }
    else if( node instanceof ScalarTypeDefinition )
    {
      start = "scalar";
    }
    else if( node instanceof UnionTypeDefinition )
    {
      start = "union";
    }
  }
  else if( node instanceof OperationDefinition )
  {
    start = ((OperationDefinition)node).getOperation().name().toLowerCase();
  }
  return start;
}
 

private List<Field> getFields(InterfaceTypeDefinition def) {
    List<Field> fields = new ArrayList<Field>();
    for ( FieldDefinition fieldDef : def.getFieldDefinitions() ) {
        Field field = new Field(fieldDef.getName(), toJavaTypeName(fieldDef.getType()));
        field.args = toArgs(fieldDef.getInputValueDefinitions());
        fields.add(field);
    }
    return fields;
}
 

@SuppressWarnings("unchecked")
InterfaceTypeDefinition createInterface(Map<String, Object> input) {
    assertTrue(input.get("kind").equals("INTERFACE"), () -> "wrong input");

    final List<Map<String, Object>> fields = (List<Map<String, Object>>) input.get("fields");
    final InterfaceTypeDefinition interfaceTypeDefinition = InterfaceTypeDefinition.newInterfaceTypeDefinition()
            .name((String) input.get("name"))
            .description(getDescription(input))
            .definitions(createFields(fields))
            .build();

    return interfaceTypeDefinition;

}
 

public boolean isInterfaceType() {
    return typeEntry.getDefinition() instanceof InterfaceTypeDefinition;
}
 

private void addImports(Collection<String> imports, InterfaceTypeDefinition def) {
    for ( FieldDefinition fieldDef : def.getFieldDefinitions() ) {
        addImports(imports, fieldDef.getType());
    }
}