org.locationtech.jts.io

Class WKBHexFileReader

java.lang.Object

org.locationtech.jts.io.WKBHexFileReader

public class WKBHexFileReader
extends java.lang.Object

Reads a sequence of Geometrys in WKBHex format from a text file. Each WKBHex geometry must be on a single line The geometries in the file may be separated by any amount of whitespace and newlines.

Field Summary

Fields

Modifier and Type	Field and Description
private int	count
private java.io.File	file
private int	limit
private static int	MAX_LOOKAHEAD
private int	offset
private java.io.Reader	reader
private WKBReader	wkbReader

Constructor Summary

Constructors

Constructor and Description
WKBHexFileReader(java.io.File file, WKBReader wkbReader) Creates a new WKBHexFileReader given the File to read from and a WKTReader to use to parse the geometries.
WKBHexFileReader(java.io.Reader reader, WKBReader wkbReader) Creates a new WKBHexFileReader, given a Reader to read from.
WKBHexFileReader(java.lang.String filename, WKBReader wkbReader) Creates a new WKBHexFileReader, given the name of the file to read from.

Method Summary

Modifier and Type	Method and Description
private boolean	isAtEndOfFile(java.io.BufferedReader bufferedReader) Tests if reader is at EOF.
private boolean	isAtLimit(java.util.List geoms)
java.util.List	read() Reads a sequence of geometries.
private java.util.List	read(java.io.BufferedReader bufferedReader)
void	setLimit(int limit) Sets the maximum number of geometries to read.
void	setOffset(int offset) Sets the number of geometries to skip before storing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

file

private java.io.File file

reader

private java.io.Reader reader

wkbReader

private WKBReader wkbReader

count

private int count

limit

private int limit

offset

private int offset

MAX_LOOKAHEAD

private static final int MAX_LOOKAHEAD

See Also:

Constant Field Values

Constructor Detail

WKBHexFileReader

public WKBHexFileReader(java.io.File file,
                        WKBReader wkbReader)

Creates a new WKBHexFileReader given the File to read from and a WKTReader to use to parse the geometries.

Parameters:

file - the File to read from

wkbReader - the geometry reader to use

WKBHexFileReader

public WKBHexFileReader(java.lang.String filename,
                        WKBReader wkbReader)

Creates a new WKBHexFileReader, given the name of the file to read from.

Parameters:

filename - the name of the file to read from

wkbReader - the geometry reader to use

WKBHexFileReader

public WKBHexFileReader(java.io.Reader reader,
                        WKBReader wkbReader)

Creates a new WKBHexFileReader, given a Reader to read from.

Parameters:

reader - the reader to read from

wkbReader - the geometry reader to use

Method Detail

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 java.util.List read()
                    throws java.io.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:

java.io.IOException - if an I/O exception was encountered

ParseException - if an error occurred reading a geometry

read

private java.util.List read(java.io.BufferedReader bufferedReader)
                     throws java.io.IOException,
                            ParseException

Throws:

java.io.IOException

ParseException

isAtLimit

private boolean isAtLimit(java.util.List geoms)

isAtEndOfFile

private boolean isAtEndOfFile(java.io.BufferedReader bufferedReader)
                       throws java.io.IOException

Tests if reader is at EOF.

Throws:

java.io.IOException