Package org.openstreetmap.josm.data.validation.tests

Class PowerLines.RefChecker

java.lang.Object

org.openstreetmap.josm.data.validation.tests.PowerLines.RefChecker

Enclosing class:

PowerLines

static class PowerLines.RefChecker
extends java.lang.Object

Detects continuous reference numbering sequences. Ignores the first and last node because ways can be connected, and the connection nodes can have different numbering.

If the numbering switches in the middle of the way, this can also be seen as error, because line relations would require split ways.

Field Summary

Fields

Modifier and Type	Field	Description
private PowerLines.NumberingDirection	direction
private java.lang.Integer	previousRef
private java.util.List<PowerLines.SegmentInfo>	segments
private java.lang.Integer	startIndex

Constructor Summary

Constructors

Constructor	Description
RefChecker(Way way)

Method Summary

Modifier and Type	Method	Description
private static PowerLines.NumberingDirection	detectDirection(int ref, int previousRef)	Detects numbering direction.
(package private) PowerLines.SegmentInfo	getLongestSegment()	Calculates the longest segment.
(package private) java.util.List<PowerLines.SegmentInfo>	getSegments()	Get the detected segments
private void	maintain(java.lang.Integer ref, int index)	Maintains class variables and constructs a new segment when necessary.
private static java.lang.Integer	parseRef(java.lang.String value)	Parses integer tag values.
private void	run(Way way)

Methods inherited from class java.lang.Object

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

Field Detail

segments

private final java.util.List<PowerLines.SegmentInfo> segments

direction

private PowerLines.NumberingDirection direction

startIndex

private java.lang.Integer startIndex

previousRef

private java.lang.Integer previousRef

Constructor Detail

RefChecker

RefChecker(Way way)

Method Detail

run

private void run(Way way)

maintain

private void maintain(java.lang.Integer ref,
                      int index)

Maintains class variables and constructs a new segment when necessary.

Parameters:

ref - recognised ref=* number

index - node index in a Way

parseRef

private static java.lang.Integer parseRef(java.lang.String value)

Parses integer tag values. Later can be relatively easily extended or rewritten to handle complex references like 25/A, 25/B etc.

Parameters:

value - the value to be parsed

Returns:

parsed int or null in case of NumberFormatException

detectDirection

private static PowerLines.NumberingDirection detectDirection(int ref,
                                                             int previousRef)

Detects numbering direction. The parameters should follow way direction.

Parameters:

ref - last known reference value

previousRef - reference value before ref

Returns:

recognised direction

getLongestSegment

PowerLines.SegmentInfo getLongestSegment()

Calculates the longest segment.

Returns:

the longest segment, or the lowest index if there are more than one with same length and direction, or null if there are more than one with same length and different direction

getSegments

java.util.List<PowerLines.SegmentInfo> getSegments()

Get the detected segments

Returns:

the detected segments