def parse_layer_input(param: QgsProcessingParameterDefinition,
kwargs,
context: MapContext = None) -> LiteralInput:
""" Layers input are passed as layer name
We treat layer destination the same as input since they refer to
layers ids in qgisProject
"""
if isinstance(param, INPUT_LAYER_TYPES):
kwargs['data_type'] = 'string'
parse_allowed_layers(param, kwargs, context)
elif isinstance(param, QgsProcessingParameterRasterDestination):
kwargs['data_type'] = 'string'
kwargs['metadata'].append(
Metadata('processing:extension', param.defaultFileExtension()))
elif isinstance(param, (QgsProcessingParameterVectorDestination,
QgsProcessingParameterFeatureSink)):
kwargs['data_type'] = 'string'
kwargs['metadata'].append(
Metadata('processing:dataType', str(param.dataType())))
kwargs['metadata'].append(
Metadata('processing:extension', param.defaultFileExtension()))
else:
return None
return LiteralInput(**kwargs)
def parse_file_input(param: QgsProcessingParameterDefinition,
kwargs) -> Union[LiteralInput, ComplexInput]:
""" Input is file
"""
typ = param.type()
if typ == 'file':
if param.behavior() == QgsProcessingParameterFile.Folder:
kwargs['data_type'] = 'string'
return LiteralInput(**kwargs)
ext = param.extension()
if ext:
mime = mimetypes.types_map.get(param.extension())
if mime is not None:
kwargs['supported_formats'] = [Format(mime)]
kwargs['metadata'].append(
Metadata('processing:extension', param.extension()))
return ComplexInput(**kwargs)
elif typ == 'fileDestination':
extension = '.' + param.defaultFileExtension()
kwargs['data_type'] = 'string'
kwargs['metadata'].append(
Metadata('processing:format',
mimetypes.types_map.get(extension, '')))
return LiteralInput(**kwargs)
elif typ == 'folderDestination':
kwargs['data_type'] = 'string'
return LiteralInput(**kwargs)
def get_processing_value(param: QgsProcessingParameterDefinition,
inp: WPSInput, context: ProcessingContext) -> Any:
""" Return processing value from wps inputs
Processes other inputs than layers
"""
typ = param.type()
if typ in ('fileDestination', 'folderDestination'):
# Normalize path
value = basename(normpath(inp[0].data))
if value != inp[0].data:
LOGGER.warning(
"Value for file or folder destination '%s' has been truncated from '%s' to '%s'",
param.name(), inp[0].data, value)
if typ == 'fileDestination':
value = Path(value).with_suffix(
'.' + param.defaultFileExtension()).as_posix()
elif typ == 'file':
# Handle file reference
outputfile = (Path(context.workdir) / param.name()).with_suffix(
param.extension())
LOGGER.debug("Saving input data as %s", outputfile.as_posix())
inp[0].download_ref(outputfile)
value = outputfile.name
else:
value = None
return value