Package org.locationtech.jts.io

Class WKTFileReader

java.lang.Object
org.locationtech.jts.io.WKTFileReader
public class WKTFileReader extends Object
Reads a sequence of Geometrys in WKT format from a text file. The geometries in the file may be separated by any amount of whitespace and newlines.

  • Field Details

    • file

      private File file

    • reader

      private Reader reader

    • wktReader

      private WKTReader wktReader

    • count

      private int count

    • limit

      private int limit

    • offset

      private int offset

    • MAX_LOOKAHEAD

      private static final int MAX_LOOKAHEAD
      See Also:

  • Constructor Details

    • WKTFileReader

      public WKTFileReader(File file, WKTReader wktReader)
      Creates a new WKTFileReader given the File to read from and a WKTReader to use to parse the geometries.
      Parameters:
      file - the File to read from
      wktReader - the geometry reader to use

    • WKTFileReader

      public WKTFileReader(String filename, WKTReader wktReader)
      Creates a new WKTFileReader, given the name of the file to read from.
      Parameters:
      filename - the name of the file to read from
      wktReader - the geometry reader to use

    • WKTFileReader

      public WKTFileReader(Reader reader, WKTReader wktReader)
      Creates a new WKTFileReader, given a Reader to read from.
      Parameters:
      reader - the reader to read from
      wktReader - the geometry reader to use

  • Method Details

    • setLimit

      public void setLimit(int limit)
      Sets the maximum number of geometries to read.
      Parameters:
      limit - the maximum number of geometries to read

    • setOffset

      public void setOffset(int offset)
      Sets the number of geometries to skip before storing.
      Parameters:
      offset - the number of geometries to skip

    • read

      public List read() throws IOException, ParseException
      Reads a sequence of geometries. If an offset is specified, geometries read up to the offset count are skipped. If a limit is specified, no more than limit geometries are read.
      Returns:
      the list of geometries read
      Throws:
      IOException - if an I/O exception was encountered
      ParseException - if an error occurred reading a geometry

    • read

      private List read(BufferedReader bufferedReader) throws IOException, ParseException
      Throws:
      IOException
      ParseException

    • isAtLimit

      private boolean isAtLimit(List geoms)

    • isAtEndOfFile

      private boolean isAtEndOfFile(BufferedReader bufferedReader) throws IOException
      Tests if reader is at EOF.
      Throws:
      IOException