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With a virtual dir the parser can open meta files with additional information required for to parse file that retain in the same directory as the imported file. For example some grid coverage formats need an additional file for the geo referencing.
PropertiesConsumer
Ideally a parser does not need any additional information and is dedicated to parse one strict specified file format.
In some cases the parser needs additional configuration. Don't use a separate additional configuration file in this case because this file can not be managed by FEWS.
You can configure additional properties in the time series import module. By implementing the PropertiesConsumer interface the properties are injected in your parser.
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