DataTypeMappingSet

XML tag	<DATA-TYPE-MAPPING-SET>
Module	autosar.datatype
Inherits	autosar.element.Element

This class contains type mappings between ApplicationDataTypes and ImplementationDataTypes. In addition, it can contain type mappings between ModeDeclarationGroups and ImplementationDataTypes.

Usage

import autosar

def setup():
    ws = autosar.workspace(version="4.2.2")
    #Application Types
    dataTypePackage=ws.createPackage('ApplicationTypes', role='DataType')
    dataConstraintPackage = dataTypePackage.createSubPackage('DataConstrs', role='DataConstraint')
    compuMethodPackage = dataTypePackage.createSubPackage('CompuMethods', role='CompuMethod')
    onOffDataConstraint = dataConstraintPackage.createInternalDataConstraint('OnOff_DataConstraint', 0, 3)
    onOffCompuMethod = compuMethodPackage.createCompuMethodConst('OnOff_CompuMethod',
        ['OnOff_Off', 'OnOff_On', 'OnOff_Error', 'OnOff_NotAvailable'],
        defaultValue='OnOff_NotAvailable')
    dataTypePackage.createApplicationPrimitiveDataType('OnOff_T',
    dataConstraint = onOffDataConstraint.ref,  compuMethod=onOffCompuMethod.ref)
    #Base Types
    baseTypes=ws.createPackage('BaseTypes')
    baseTypeUint8 = baseTypes.createSwBaseType('uint8', 8, nativeDeclaration='uint8')
    #Implementation Types
    dataTypePackage = ws.createPackage('ImplementationTypes', role = 'DataType')
    dataTypePackage.createSubPackage('DataConstrs', role='DataConstraint')
    dataTypePackage.createSubPackage('CompuMethods', role='CompuMethod')
    dataTypePackage.createImplementationDataType('OnOff_T', baseTypeUint8.ref,
        valueTable = ['OnOff_Off', 'OnOff_On', 'OnOff_Error', 'OnOff_NotAvailable'])
    return ws

ws = setup()
package = ws.createPackage('DataTypeMappingSets')
mappingSet = package.createDataTypeMappingSet('MappingSet')
appType = ws.find('/ApplicationTypes/OnOff_T')
implType = ws.find('/ImplementationTypes/OnOff_T')
mappingSet.createDataTypeMapping(appType.ref, implType.ref)
ws.saveXML('DataTypes.arxml')

Factory Methods

Package.createDataTypeMappingSet

Constructor

datatype.DataTypeMappingSet(name[, parent = None][, adminData = None])

参数

name (str) – Short name.
parent (None, Package) – Parent package.
adminData (None, AdminData) – Admin data.

Attributes

For inherited attributes see autosar.element.Element.

Name	Type	Description
applicationTypeMap	dict	Application data type mappings
modeRequestMap	dict	Mode request mappings

The ARXML definition uses lists containing mappings while Python uses dictionaries. For the applicationTypeMap dictionary, each key is a reference to an application data type and each value is a reference to an implementation data type. Likewise for the modeRequestMap dictionary, each key is a reference to a mode declaration group and each value is a reference to an implementation data type.

Method Description

createDataTypeMapping

DataTypeMappingSet.createDataTypeMapping(applicationDataTypeRef, implementationDataTypeRef)

Creates a new type mapping between an application type (reference) and implementation data type (reference). The created mapping is added to the internal applicationTypeMap dictionary.

参数

applicationDataTypeRef (str) – Reference to ApplicationDataType.
implementationDataTypeRef (str) – Reference to ImplementationDataType

createModeRequestMapping

DataTypeMappingSet.createModeRequestMapping(modeDeclarationGroupRef, implementationDataTypeRef)

Creates a new type mapping between a mode declaration group (reference) and implementation data type (reference). The created mapping is added to the internal modeRequestMap dictionary.

参数

modeDeclarationGroupRef (str) – Reference to ModeDeclarationGroup
implementationDataTypeRef (str) – Reference to ImplementationDataType

add

DataTypeMappingSet.add(item)

Adds a user-created mapping to this mapping set. If the item is of type DataTypeMap it gets inserted into to the applicationTypeMap dictionary. Likewise, if the item is of type ModeRequestTypeMap it gets inserted into to the modeRequestMap dictionary.

参数: item (DataTypeMap or ModeRequestTypeMap) – Reference to ApplicationDataType

getDataTypeMapping

DataTypeMappingSet.getDataTypeMapping(applicationDataTypeRef)

Returns the mapping object that is currently associated with the given application data type reference. If the reference string is not found in the internal applicationTypeMap dictionary, None is returned.

参数: applicationDataTypeRef (str) – Reference to ApplicationDataType
返回类型: DataTypeMap or None

getModeRequestMapping

DataTypeMappingSet.getModeRequestMapping(modeDeclarationGroupRef)

Returns the mapping object that is currently associated with the given mode declaration group reference. If the reference string is not found in the internal modeRequestMap dictionary, None is returned.

参数: modeDeclarationGroupRef (str) – Reference to ModeDeclarationGroup
返回类型: ModeRequestTypeMap or None

findMappedDataTypeRef

DataTypeMappingSet.findMappedDataTypeRef(applicationDataTypeRef)

Same as getDataTypeMapping but instead returns the reference to the mapped implementation data type. Returns None in case the application data type reference is not part of the internal applicationTypeMap dictionary.

参数: applicationDataTypeRef (str) – Reference to ApplicationDataType
返回类型: str

findMappedModeRequestRef

DataTypeMappingSet.findMappedModeRequestRef(modeDeclarationGroupRef)

Same as getModeRequestMapping but instead returns the reference to the mapped implementation data type. Returns None in case the mode declaration group reference is not part of the internal modeRequestMap dictionary.

参数: modeDeclarationGroupRef (str) – Reference to ModeDeclarationGroup
返回类型: str

findMappedDataType

DataTypeMappingSet.findMappedDataType(applicationDataTypeRef)

Same as findMappedDataTypeRef but instead returns the referenced to ImplementationDataType object.

参数: applicationDataTypeRef (str) – Reference to ApplicationDataType
返回类型: ImplementationDataType

findMappedModeRequest

DataTypeMappingSet.findMappedModeRequest(modeDeclarationGroupRef)

Same as findMappedModeRequestRef but instead returns the referenced to ImplementationDataType object.

参数: modeDeclarationGroupRef (str) – Reference to ModeDeclarationGroup
返回类型: ImplementationDataType