[Javacavemaps-developers] the flat file parsers

[Larry G. <jav...@ya...>]

I have come up with a fairly good design.. Not sure it you can apply it any pattern at this point but here goes.

parsers package contains some interfaces associated with 3 types of parsing and a Parser interface.
parsers.flatfile contains one abstract parser and 4 concrete parsers. Each parser will have a private 
no arges constructor, will have 3 constructors that take File, InputStream or String as parameters. NOTE that java.util.Scanner works with these 3 objects. All 4 types will produce a FlatFileModel which will be given to survey parsers. A flat file model will either get the client class any given line or field in the flat file, or provide a line or  field iterator. parser.survey will have a SurveyLineParser and a SurveyStationParser.  Each one will be constructed with a Parser as its parameter.

So if we are getting survey line data fixedwidth data file from a resource it would look like this..

surveyLineParser = new SurveyLineParser(new FixedWidthParser(resourceInputStream));

anArrayList= surveyLineParser.getList();  // gets a list of SurveyLineModels.  of course this needs to be rewritten so that it uses generics.

Larry Gray
la...@ar...