Class MapGraph.Handler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

MapGraph.Handler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

Enclosing class:

MapGraph

private class MapGraph.Handler
extends DefaultHandler

Parses OSM XML files to construct a StreetMapGraph.

Field Summary

Fields

Modifier and Type	Field	Description
private Set<String>	allowedHighwayTypes
private Map<Long,org.locationtech.spatial4j.shape.Point>	byId
private Map<String,List<org.locationtech.spatial4j.shape.Point>>	byName
private long	id
private org.locationtech.spatial4j.shape.Point	location
private String	name
private Queue<org.locationtech.spatial4j.shape.Point>	path
private String	state
private boolean	validWay

Constructor Summary

Constructors

Constructor	Description
Handler(Set<String> allowedHighwayTypes)

Method Summary

Modifier and Type	Method	Description
void	endElement(String uri, String localName, String qName)	Called at the end of an element.
private void	reset()	Reset the handler state before processing a new way or node.
void	startElement(String uri, String localName, String qName, Attributes attributes)	Called at the beginning of an element.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

characters, endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Field Detail

allowedHighwayTypes

private final Set<String> allowedHighwayTypes

byId

private final Map<Long,org.locationtech.spatial4j.shape.Point> byId

byName

private final Map<String,List<org.locationtech.spatial4j.shape.Point>> byName

state

private String state

id

private long id

name

private String name

validWay

private boolean validWay

location

private org.locationtech.spatial4j.shape.Point location

path

private Queue<org.locationtech.spatial4j.shape.Point> path

Constructor Detail

Handler

Handler(Set<String> allowedHighwayTypes)

Method Detail

reset

private void reset()

Reset the handler state before processing a new way or node.

startElement

public void startElement(String uri,
                         String localName,
                         String qName,
                         Attributes attributes)

Called at the beginning of an element.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Parameters:

uri - The Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed.

localName - The local name (without prefix), or the empty string if Namespace processing is not being performed.

qName - The qualified name (with prefix), or the empty string if qualified names are not available. This tells us which element we're looking at.

attributes - The attributes attached to the element. If there are no attributes, it shall be an empty Attributes object.

See Also:

Attributes

endElement

public void endElement(String uri,
                       String localName,
                       String qName)

Called at the end of an element.

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Parameters:

uri - The Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed.

localName - The local name (without prefix), or the empty string if Namespace processing is not being performed.

qName - The qualified name (with prefix), or the empty string if qualified names are not available.