godata

type ExpandItem struct {
	Path           []*Token
	Filter         *GoDataFilterQuery
	Search         *GoDataSearchQuery
	OrderBy        *GoDataOrderByQuery
	Skip           *GoDataSkipQuery
	Top            *GoDataTopQuery
	Select         *GoDataSelectQuery
	Expand         *GoDataExpandQuery
	IsGenerated    bool // set to true if expand was generated by an other expand such as Datastreams in Datastreams/Observations
	HasOuterFilter bool // when there is a filter from outside the expand query itself, need to know this because it should result in different output
	Levels         int
}

type Function struct {
	Token string
	// The number of parameters this function accepts
	Params int
}

type GoDataAction struct {
	XMLName       xml.Name `xml:"Action"`
	Name          string   `xml:"Name,attr"`
	IsBound       string   `xml:"IsBound,attr,omitempty"`
	EntitySetPath string   `xml:"EntitySetPath,attr,omitempty"`
	Parameters    []*GoDataParameter
	ReturnType    *GoDataReturnType
}

type GoDataActionImport struct {
	XMLName   xml.Name `xml:"ActionImport"`
	Name      string   `xml:"Name,attr"`
	Action    string   `xml:"Action,attr"`
	EntitySet string   `xml:"EntitySet,attr,omitempty"`
}

type GoDataAnnotation struct {
	XMLName   xml.Name `xml:"Annotation"`
	Term      string   `xml:"Term,attr"`
	Qualifier string   `xml:"Qualifier,attr,omitempty"`
}

type GoDataAnnotations struct {
	XMLName     xml.Name `xml:"Annotations"`
	Target      string   `xml:"Target,attr"`
	Qualifier   string   `xml:"Qualifier,attr,omitempty"`
	Annotations []*GoDataAnnotation
}

type GoDataApplyQuery string

type GoDataComplexType struct {
	XMLName              xml.Name `xml:"ComplexType"`
	Name                 string   `xml:"Name,attr"`
	BaseType             string   `xml:"BaseType,attr,omitempty"`
	Abstract             string   `xml:"Abstract,attr,omitempty"`
	OpenType             string   `xml:"OpenType,attr,omitempty"`
	Properties           []*GoDataProperty
	NavigationProperties []*GoDataNavigationProperty
}

type GoDataCountQuery bool

type GoDataEntityContainer struct {
	XMLName         xml.Name `xml:"EntityContainer"`
	Name            string   `xml:"Name,attr"`
	Extends         string   `xml:"Extends,attr,omitempty"`
	EntitySets      []*GoDataEntitySet
	Singletons      []*GoDataSingleton
	ActionImports   []*GoDataActionImport
	FunctionImports []*GoDataFunctionImport
}

type GoDataEntitySet struct {
	XMLName                    xml.Name `xml:"EntitySet"`
	Name                       string   `xml:"Name,attr"`
	EntityType                 string   `xml:"EntityType,attr"`
	IncludeInServiceDocument   string   `xml:"IncludeInServiceDocument,attr,omitempty"`
	NavigationPropertyBindings []*GoDataNavigationPropertyBinding
}

type GoDataEntityType struct {
	XMLName              xml.Name `xml:"EntityType"`
	Name                 string   `xml:"Name,attr"`
	BaseType             string   `xml:"BaseType,attr,omitempty"`
	Abstract             string   `xml:"Abstract,attr,omitempty"`
	OpenType             string   `xml:"OpenType,attr,omitempty"`
	HasStream            string   `xml:"HasStream,attr,omitempty"`
	Key                  *GoDataKey
	Properties           []*GoDataProperty
	NavigationProperties []*GoDataNavigationProperty
}

type GoDataEnumType struct {
	XMLName        xml.Name `xml:"EnumType"`
	Name           string   `xml:"Name,attr"`
	UnderlyingType string   `xml:"UnderlyingType,attr,omitempty"`
	IsFlags        string   `xml:"IsFlags,attr,omitempty"`
	Members        []*GoDataMember
}

type GoDataError struct {
	ResponseCode int
	Message      string
}

type GoDataExpandQuery struct {
	ExpandItems []*ExpandItem
}

type GoDataFilterQuery struct {
	Tree *ParseNode
}

type GoDataFormatQuery struct {
}

type GoDataFunction struct {
	XMLName       xml.Name `xml:"Function"`
	Name          string   `xml:"Name,attr"`
	IsBound       string   `xml:"IsBound,attr,omitempty"`
	IsComposable  string   `xml:"IsComposable,attr,omitempty"`
	EntitySetPath string   `xml:"EntitySetPath,attr,omitempty"`
	Parameters    []*GoDataParameter
	ReturnType    *GoDataReturnType
}

type GoDataFunctionImport struct {
	XMLName                  xml.Name `xml:"FunctionImport"`
	Name                     string   `xml:"Name,attr"`
	Function                 string   `xml:"Function,attr"`
	EntitySet                string   `xml:"EntitySet,attr,omitempty"`
	IncludeInServiceDocument string   `xml:"IncludeInServiceDocument,attr,omitempty"`
}

type GoDataIdentifier map[string]string

type GoDataInclude struct {
	XMLName   xml.Name `xml:"edmx:Include"`
	Namespace string   `xml:"Namespace,attr"`
	Alias     string   `xml:"Alias,attr,omitempty"`
}

type GoDataIncludeAnnotations struct {
	XMLName         xml.Name `xml:"edmx:IncludeAnnotations"`
	TermNamespace   string   `xml:"TermNamespace,attr"`
	Qualifier       string   `xml:"Qualifier,attr,omitempty"`
	TargetNamespace string   `xml:"TargetNamespace,attr,omitempty"`
}

type GoDataInlineCountQuery string

type GoDataKey struct {
	XMLName     xml.Name `xml:"Key"`
	PropertyRef *GoDataPropertyRef
}

type GoDataMember struct {
	XMLName xml.Name `xml:"Member"`
	Name    string   `xml:"Name,attr"`
	Value   string   `xml:"Value,attr,omitempty"`
}

type GoDataMetadata struct {
	XMLName      xml.Name `xml:"edmx:Edmx"`
	XMLNamespace string   `xml:"xmlns:edmx,attr"`
	Version      string   `xml:"Version,attr"`
	DataServices *GoDataServices
	References   []*GoDataReference
}

type GoDataNavigationProperty struct {
	XMLName                xml.Name `xml:"NavigationProperty"`
	Name                   string   `xml:"Name,attr"`
	Type                   string   `xml:"Type,attr"`
	Nullable               string   `xml:"Nullable,attr,omitempty"`
	Partner                string   `xml:"Partner,attr,omitempty"`
	ContainsTarget         string   `xml:"ContainsTarget,attr,omitempty"`
	ReferentialConstraints []*GoDataReferentialConstraint
}

type GoDataNavigationPropertyBinding struct {
	XMLName xml.Name `xml:"NavigationPropertyBinding"`
	Path    string   `xml:"Path,attr"`
	Target  string   `xml:"Target,attr"`
}

type GoDataOnDelete struct {
	XMLName xml.Name `xml:"OnDelete"`
	Action  string   `xml:"Action,attr"`
}

type GoDataOrderByQuery struct {
	OrderByItems []*OrderByItem
}

type GoDataParameter struct {
	XMLName   xml.Name `xml:"Parameter"`
	Name      string   `xml:"Name,attr"`
	Type      string   `xml:"Type,attr"`
	Nullable  string   `xml:"Nullable,attr,omitempty"`
	MaxLength int      `xml:"MaxLength,attr,omitempty"`
	Precision int      `xml:"Precision,attr,omitempty"`
	Scale     int      `xml:"Scale,attr,omitempty"`
	SRID      string   `xml:"SRID,attr,omitempty"`
}

type GoDataProperty struct {
	XMLName      xml.Name `xml:"Property"`
	Name         string   `xml:"Name,attr"`
	Type         string   `xml:"Type,attr"`
	Nullable     string   `xml:"Nullable,attr,omitempty"`
	MaxLength    int      `xml:"MaxLength,attr,omitempty"`
	Precision    int      `xml:"Precision, attr,omitempty"`
	Scale        int      `xml:"Scale,attr,omitempty"`
	Unicode      string   `xml:"Unicode,attr,omitempty"`
	SRID         string   `xml:"SRID,attr,omitempty"`
	DefaultValue string   `xml:"DefaultValue,attr,omitempty"`
}

type GoDataPropertyRef struct {
	XMLName xml.Name `xml:"PropertyRef"`
	Name    string   `xml:"Name,attr"`
}

type GoDataProvider interface {
	// Request a single entity from the provider. Should return a response field
	// that contains the value mapping properties to values for the entity.
	GetEntity(*GoDataRequest) (*GoDataResponseField, error)
	// Request a collection of entities from the provider. Should return a
	// response field that contains the value of a slice of every entity in the
	// collection filtered by the request query parameters.
	GetEntityCollection(*GoDataRequest) (*GoDataResponseField, error)
	// Request the number of entities in a collection, disregarding any filter
	// query parameters.
	GetCount(*GoDataRequest) (int, error)
	// Get the object model representation from the provider.
	GetMetadata() *GoDataMetadata
}

type GoDataQuery struct {
	Filter      *GoDataFilterQuery
	Apply       *GoDataApplyQuery
	Expand      *GoDataExpandQuery
	Select      *GoDataSelectQuery
	OrderBy     *GoDataOrderByQuery
	Top         *GoDataTopQuery
	Skip        *GoDataSkipQuery
	Count       *GoDataCountQuery
	InlineCount *GoDataInlineCountQuery
	Search      *GoDataSearchQuery
	Format      *GoDataFormatQuery
}

type GoDataReference struct {
	XMLName            xml.Name `xml:"edmx:Reference"`
	Uri                string   `xml:"Uri,attr"`
	Includes           []*GoDataInclude
	IncludeAnnotations []*GoDataIncludeAnnotations
}

type GoDataReferentialConstraint struct {
	XMLName            xml.Name        `xml:"ReferentialConstraint"`
	Property           string          `xml:"Property,attr"`
	ReferencedProperty string          `xml:"ReferencedProperty,attr"`
	OnDelete           *GoDataOnDelete `xml:"OnDelete,omitempty"`
}

type GoDataRequest struct {
	FirstSegment *GoDataSegment
	LastSegment  *GoDataSegment
	Query        *GoDataQuery
	RequestKind  int
}

type GoDataResponse struct {
	Fields map[string]*GoDataResponseField
}

type GoDataResponseField struct {
	Value interface{}
}

type GoDataReturnType struct {
	XMLName   xml.Name `xml:"ReturnType"`
	Name      string   `xml:"Name,attr"`
	Type      string   `xml:"Type,attr"`
	Nullable  string   `xml:"Nullable,attr,omitempty"`
	MaxLength int      `xml:"MaxLength,attr,omitempty"`
	Precision int      `xml:"Precision,attr,omitempty"`
	Scale     int      `xml:"Scale,attr,omitempty"`
	SRID      string   `xml:"SRID,attr,omitempty"`
}

type GoDataSchema struct {
	XMLName          xml.Name `xml:"Schema"`
	Namespace        string   `xml:"Namespace,attr"`
	Alias            string   `xml:"Alias,attr,omitempty"`
	Actions          []*GoDataAction
	Annotations      []*GoDataAnnotations
	Annotation       []*GoDataAnnotation
	ComplexTypes     []*GoDataComplexType
	EntityContainers []*GoDataEntityContainer
	EntityTypes      []*GoDataEntityType
	EnumTypes        []*GoDataEnumType
	Functions        []*GoDataFunction
	Terms            []*GoDataTerm
	TypeDefinitions  []*GoDataTypeDefinition
}

type GoDataSearchQuery struct {
	Tree *ParseNode
}

type GoDataSegment struct {
	// The raw segment parsed from the URI
	RawValue string

	// The kind of resource being pointed at by this segment
	SemanticType int

	// A pointer to the metadata type this object represents, as defined by a
	// particular service
	SemanticReference interface{}

	// The name of the entity, type, collection, etc.
	Name string

	// map[string]string of identifiers passed to this segment. If the identifier
	// is not key/value pair(s), then all values will be nil. If there is no
	// identifier, it will be nil.
	Identifier *GoDataIdentifier

	// The next segment in the path.
	Next *GoDataSegment
	// The previous segment in the path.
	Prev *GoDataSegment
}

type GoDataSelectQuery struct {
	SelectItems []*SelectItem
}

type GoDataService struct {
	// The base url for the service. Navigating to this URL will display the
	// service document.
	BaseUrl *url.URL
	// The provider for this service that is serving the data to the OData API.
	Provider GoDataProvider
	// Metadata cache taken from the provider.
	Metadata *GoDataMetadata
	// A mapping from schema names to schema references
	SchemaLookup map[string]*GoDataSchema
	// A bottom-up mapping from entity type names to schema namespaces to
	// the entity type reference
	EntityTypeLookup map[string]map[string]*GoDataEntityType
	// A bottom-up mapping from entity container names to schema namespaces to
	// the entity container reference
	EntityContainerLookup map[string]map[string]*GoDataEntityContainer
	// A bottom-up mapping from entity set names to entity collection names to
	// schema namespaces to the entity set reference
	EntitySetLookup map[string]map[string]map[string]*GoDataEntitySet
	// A lookup for entity properties if an entity type is given, lookup
	// properties by name
	PropertyLookup map[*GoDataEntityType]map[string]*GoDataProperty
	// A lookup for navigational properties if an entity type is given,
	// lookup navigational properties by name
	NavigationPropertyLookup map[*GoDataEntityType]map[string]*GoDataNavigationProperty
}

type GoDataServices struct {
	XMLName xml.Name `xml:"edmx:DataServices"`
	Schemas []*GoDataSchema
}

type GoDataSingleton struct {
	XMLName                    xml.Name `xml:"Singleton"`
	Name                       string   `xml:"Name,attr"`
	Type                       string   `xml:"Type,attr"`
	NavigationPropertyBindings []*GoDataNavigationPropertyBinding
}

type GoDataSkipQuery int

type GoDataTerm struct {
	XMLName      xml.Name `xml:"Term"`
	Name         string   `xml:"Name,attr"`
	Type         string   `xml:"Type,attr"`
	BaseTerm     string   `xml:"BaseTerm,attr,omitempty"`
	DefaultValue string   `xml:"DefaultValue,attr,omitempty"`
	AppliesTo    string   `xml:"AppliesTo,attr,omitempty"`
}

type GoDataTopQuery int

type GoDataTypeDefinition struct {
	XMLName        xml.Name `xml:"TypeDefinition"`
	Name           string   `xml:"Name,attr"`
	UnderlyingType string   `xml:"UnderlyingTypeattr,omitempty"`
	Annotations    []*GoDataAnnotation
}

type Operator struct {
	Token string
	// Whether the operator is left/right/or not associative
	Association int
	// The number of operands this operator operates on
	Operands int
	// Rank of precedence
	Precedence int
}

type OrderByItem struct {
	Field *Token
	Order string
}

type ParseNode struct {
	Token    *Token
	Parent   *ParseNode
	Children []*ParseNode
}

type Parser struct {
	// Map from string inputs to operator types
	Operators map[string]*Operator
	// Map from string inputs to function types
	Functions map[string]*Function
}

type SelectItem struct {
	Segments []*Token
}

type Token struct {
	Value string
	Type  int
	// Holds information about the semantic meaning of this token taken from the
	// context of the GoDataService.
	SemanticType      int
	SemanticReference interface{}
}

type TokenMatcher struct {
	Pattern string
	Re      *regexp.Regexp
	Token   int
}

type Tokenizer struct {
	TokenMatchers  []*TokenMatcher
	IgnoreMatchers []*TokenMatcher
}