com.mxgraph.util.svg
Class AbstractParser

java.lang.Object
  com.mxgraph.util.svg.AbstractParser

All Implemented Interfaces:

Parser

Direct Known Subclasses:

NumberParser

public abstract class AbstractParser
extends Object
implements Parser

This class is the superclass of all parsers. It provides localization and error handling methods.

Field Summary

static String	BUNDLE_CLASSNAME The default resource bundle base name.
protected int	current The current character.
protected ErrorHandler	errorHandler The error handler.
protected NormalizingReader	reader The normalizing reader.

Constructor Summary

AbstractParser()

Method Summary

protected String	createErrorMessage(String key, Object[] args) Returns a localized error message.
protected abstract void	doParse() Method responsible for actually parsing data after AbstractParser has initialized itself.
protected String	getBundleClassName() Returns the resource bundle base name.
int	getCurrent() Returns the current character value.
void	parse(String s) Parses the given string.
protected void	reportCharacterExpectedError(char expectedChar, int currentChar) simple api to call often reported error.
protected void	reportError(String key, Object[] args) Signals an error to the error handler.
protected void	reportUnexpectedCharacterError(int currentChar) simple api to call often reported error.
void	setErrorHandler(ErrorHandler handler) Allow an application to register an error event handler.
protected void	skipCommaSpaces() Skips the whitespaces and an optional comma.
protected void	skipSpaces() Skips the whitespaces in the current reader.

Methods inherited from class java.lang.Object

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

Field Detail

BUNDLE_CLASSNAME

public static final String BUNDLE_CLASSNAME

The default resource bundle base name.

See Also:

Constant Field Values

errorHandler

protected ErrorHandler errorHandler

The error handler.

reader

protected NormalizingReader reader

The normalizing reader.

current

protected int current

The current character.

Constructor Detail

AbstractParser

public AbstractParser()

Method Detail

getCurrent

public int getCurrent()

Returns the current character value.

setErrorHandler

public void setErrorHandler(ErrorHandler handler)

Allow an application to register an error event handler.

If the application does not register an error event handler, all error events reported by the parser will cause an exception to be thrown.

Applications may register a new or different handler in the middle of a parse, and the parser must begin using the new handler immediately.

Specified by:

setErrorHandler in interface Parser

Parameters:

handler - The error handler.

parse

public void parse(String s)
           throws ParseException

Parses the given string.

Specified by:

parse in interface Parser

Throws:

ParseException

doParse

protected abstract void doParse()
                         throws ParseException,
                                IOException

Method responsible for actually parsing data after AbstractParser has initialized itself.

Throws:

ParseException

IOException

reportError

protected void reportError(String key,
                           Object[] args)
                    throws ParseException

Signals an error to the error handler.

Parameters:

key - The message key in the resource bundle.

args - The message arguments.

Throws:

ParseException

reportCharacterExpectedError

protected void reportCharacterExpectedError(char expectedChar,
                                            int currentChar)

simple api to call often reported error. Just a wrapper for reportError().

Parameters:

expectedChar - what caller expected

currentChar - what caller found

reportUnexpectedCharacterError

protected void reportUnexpectedCharacterError(int currentChar)

simple api to call often reported error. Just a wrapper for reportError().

Parameters:

currentChar - what the caller found and didnt expect

createErrorMessage

protected String createErrorMessage(String key,
                                    Object[] args)

Returns a localized error message.

Parameters:

key - The message key in the resource bundle.

args - The message arguments.

getBundleClassName

protected String getBundleClassName()

Returns the resource bundle base name.

Returns:

BUNDLE_CLASSNAME.

skipSpaces

protected void skipSpaces()
                   throws IOException

Skips the whitespaces in the current reader.

Throws:

IOException

skipCommaSpaces

protected void skipCommaSpaces()
                        throws IOException

Skips the whitespaces and an optional comma.

Throws:

IOException