Package org.graphstream.stream.file.gml

Class GMLParser

java.lang.Object

org.graphstream.stream.file.gml.GMLParser

All Implemented Interfaces:

GMLParserConstants, Parser

public class GMLParser
extends Object
implements Parser, GMLParserConstants

Field Summary

Fields

Modifier and Type	Field	Description
Token	jj_nt	Next token.
Token	token	Current token.
GMLParserTokenManager	token_source	Generated Token Manager.

Fields inherited from interface org.graphstream.stream.file.gml.GMLParserConstants

COMMENT, DEFAULT, DIGIT, DIGRAPH, EOF, EOL, GRAPH, HEXDIGIT, KEY, LSQBR, REAL, RSQBR, STRING, tokenImage

Constructor Summary

Constructors

Constructor	Description
GMLParser(InputStream stream)	Constructor with InputStream.
GMLParser(InputStream stream, String encoding)	Constructor with InputStream and supplied encoding
GMLParser(Reader stream)	Constructor.
GMLParser(FileSourceGML gml, InputStream stream)
GMLParser(FileSourceGML gml, Reader stream)
GMLParser(GMLParserTokenManager tm)	Constructor with generated Token Manager.

Method Summary

Modifier and Type	Method	Description
void	all()	Parse the whole stream.
void	close()	Closes the parser, closing the opened stream.
void	diGraphStart()
void	disable_tracing()	Disable tracing.
void	enable_tracing()	Enable tracing.
ParseException	generateParseException()	Generate ParseException.
Token	getNextToken()	Get the next Token.
Token	getToken(int index)	Get the specific Token.
void	graphEnd()
void	graphStart()
boolean	isInGraph()
String	keyValue(org.graphstream.stream.file.gml.KeyValues values)	A set of key and value, the value can recursively be a list of key-values.
org.graphstream.stream.file.gml.KeyValues	list()	A list of key values, all values are stored in a KeyValues object.
boolean	next()
org.graphstream.stream.file.gml.KeyValues	nextEvents()	The top-level method to be called by the file source.
void	open()	Start parsing the stream.
void	ReInit(InputStream stream)	Reinitialise.
void	ReInit(InputStream stream, String encoding)	Reinitialise.
void	ReInit(Reader stream)	Reinitialise.
void	ReInit(GMLParserTokenManager tm)	Reinitialise.
void	start()	Unused rule, call it to slurp in the whole file.
boolean	step()
Object	value(String key)	A value for a key, either a number, a string or a recursive list of key-values.

Methods inherited from class java.lang.Object

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

Field Details

token_source

public GMLParserTokenManager token_source

Generated Token Manager.

token

public Token token

Current token.

jj_nt

public Token jj_nt

Next token.

Constructor Details

GMLParser

public GMLParser(FileSourceGML gml,
InputStream stream)

GMLParser

public GMLParser(FileSourceGML gml,
Reader stream)

GMLParser

public GMLParser(InputStream stream)

Constructor with InputStream.

GMLParser

public GMLParser(InputStream stream,
String encoding)

Constructor with InputStream and supplied encoding

GMLParser

public GMLParser(Reader stream)

Constructor.

GMLParser

public GMLParser(GMLParserTokenManager tm)

Constructor with generated Token Manager.

Method Details

isInGraph

public boolean isInGraph()

open

public void open()
          throws IOException,
ParseException

Description copied from interface: Parser

Start parsing the stream.

Specified by:

open in interface Parser

Throws:

ParseException

IOException

next

public boolean next()
             throws IOException,
ParseException

Specified by:

next in interface Parser

Returns:

Throws:

ParseException

IOException

step

public boolean step()
             throws IOException,
ParseException

Throws:

IOException

ParseException

close

public void close()
           throws IOException

Closes the parser, closing the opened stream.

Specified by:

close in interface Parser

Throws:

IOException

start

public final void start()
                 throws ParseException

Unused rule, call it to slurp in the whole file.

Throws:

ParseException

all

public final void all()
               throws ParseException,
IOException

Description copied from interface: Parser

Parse the whole stream.

Specified by:

all in interface Parser

Throws:

ParseException

IOException

graphStart

public final void graphStart()
                      throws ParseException

Throws:

ParseException

diGraphStart

public final void diGraphStart()
                        throws ParseException

Throws:

ParseException

graphEnd

public final void graphEnd()
                    throws ParseException

Throws:

ParseException

nextEvents

public final org.graphstream.stream.file.gml.KeyValues nextEvents()
                                                           throws ParseException

The top-level method to be called by the file source. Returns a set of top-level key values or null if the end of the file was reached. Top-level key values are nodes and edges as well as all key-values defined before and after the graph.

Throws:

ParseException

list

public final org.graphstream.stream.file.gml.KeyValues list()
                                                     throws ParseException

A list of key values, all values are stored in a KeyValues object.

Throws:

ParseException

keyValue

public final String keyValue(org.graphstream.stream.file.gml.KeyValues values)
                      throws ParseException

A set of key and value, the value can recursively be a list of key-values. Only the key-value list "graph [ ... ]" is not parsed by this rule, and parsed by another rules, so that the nextEvent() rule can be called repeatedly.

Throws:

ParseException

value

public final Object value(String key)
                   throws ParseException

A value for a key, either a number, a string or a recursive list of key-values.

Throws:

ParseException

ReInit

public void ReInit(InputStream stream)

Reinitialise.

ReInit

public void ReInit(InputStream stream,
String encoding)

Reinitialise.

ReInit

public void ReInit(Reader stream)

Reinitialise.

ReInit

public void ReInit(GMLParserTokenManager tm)

Reinitialise.

getNextToken

public final Token getNextToken()

Get the next Token.

getToken

public final Token getToken(int index)

Get the specific Token.

generateParseException

public ParseException generateParseException()

Generate ParseException.

enable_tracing

public final void enable_tracing()

Enable tracing.

disable_tracing

public final void disable_tracing()

Disable tracing.