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""" |
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Class Extractor Specific Needs |
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Handling specific needs for Extractor script |
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""" |
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# package to facilitate working with directories and files |
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from pathlib import Path |
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# package to facilitate common operations |
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from db_extractor.BasicNeeds import BasicNeeds |
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class ExtractorSpecificNeeds: |
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lcl_bn = None |
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def __init__(self): |
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self.lcl_bn = BasicNeeds() |
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def fn_check_inputs_specific(self, input_parameters): |
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self.lcl_bn.fn_validate_single_value(input_parameters.input_source_system_file, |
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'file', 'source system file') |
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self.lcl_bn.fn_validate_single_value(input_parameters.input_credentials_file, |
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'file', 'credentials file') |
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self.lcl_bn.fn_validate_single_value(input_parameters.input_extracting_sequence_file, |
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'file', 'extracting sequence file') |
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@staticmethod |
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def fn_is_extraction_neccesary(local_logger, relevant_details): |
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extraction_is_necessary = False |
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local_logger.debug('Extract behaviour is set to ' + relevant_details['extract-behaviour']) |
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if relevant_details['extract-behaviour'] == \ |
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'skip-if-output-file-exists': |
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if Path(relevant_details['output-csv-file']).is_file(): |
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local_logger.debug('File ' + relevant_details['output-csv-file'] |
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+ ' already exists, ' |
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+ 'so database extraction will not be performed') |
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else: |
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extraction_is_necessary = True |
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local_logger.debug('File ' + relevant_details['output-csv-file'] |
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+ ' does not exist, ' |
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+ 'so database extraction has to be performed') |
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elif relevant_details['extract-behaviour'] == \ |
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'overwrite-if-output-file-exists': |
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extraction_is_necessary = True |
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local_logger.debug('Database extraction has to be performed') |
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return extraction_is_necessary |
danielgp /
db-extractor
