com.isti.util
Class CfgFileParser

java.lang.Object
  com.isti.util.CfgFileParser

Direct Known Subclasses:

CollectIniParser, ControlIniParser, RuleSetParser, StationInfoParser

public class CfgFileParser

extends java.lang.Object

Class CfgFileParser contains support functions for reading from configuration files.

Field Summary

protected static char	CLOSE_BRACKET_CHAR
protected boolean	commaSepFlag
protected java.lang.String	errorMessage
protected CfgFileTokenizer	inTokens
protected static char	OPEN_BRACKET_CHAR
protected boolean	wordSlashFlag

Constructor Summary

CfgFileParser(java.io.Reader rdr)
Creates parser object which reads from the given stream.

CfgFileParser(java.io.Reader rdr, boolean wordSlashFlag)
Creates parser object which reads from the given stream.

CfgFileParser(java.io.Reader rdr, boolean wordSlashFlag, boolean commaSepFlag)
Creates parser object which reads from the given stream.

Method Summary

java.lang.String	getErrorMessage() Returns message string for last error (or 'No error' if none).
protected java.lang.Number	parseEqualsNumber() Parses "equals" sign ('=') followed by a number.
protected java.lang.String	parseEqualsString() Parses "equals" sign ('=') followed by a string.
void	resetInput(java.io.Reader rdr) Resets the input stream for this parser.
protected void	setDupFieldMsg(java.lang.String fieldName) Builds "Duplicate entry for field" error message with given string.
protected void	setIllegalCharMsg(int charVal) Builds "Illegal character" error message with given character value.
protected void	setNoCloseBracketMsg() Builds "Close bracket not found" error message.
protected void	setNoOpenBracketMsg() Builds "Open bracket not found" error message.
protected void	setUnexpectedEOFMsg() Builds "Unexpected end-of-file" error message.

Methods inherited from class java.lang.Object

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

Field Detail

OPEN_BRACKET_CHAR

protected static final char OPEN_BRACKET_CHAR

See Also:

Constant Field Values

CLOSE_BRACKET_CHAR

protected static final char CLOSE_BRACKET_CHAR

See Also:

Constant Field Values

wordSlashFlag

protected final boolean wordSlashFlag

commaSepFlag

protected final boolean commaSepFlag

inTokens

protected CfgFileTokenizer inTokens

errorMessage

protected java.lang.String errorMessage

Constructor Detail

CfgFileParser

public CfgFileParser(java.io.Reader rdr,
                     boolean wordSlashFlag,
                     boolean commaSepFlag)

Creates parser object which reads from the given stream. The comma character is parsed as part of a word token.

Parameters:

rdr - reader

wordSlashFlag - true to allow the forward-slash character to be parsed as part of a word token (this disables '//' comments); false to make the forward-slash character be a token separator.

commaSepFlag - true for comma to be a token separator; false for comma to be parsed as part of a word token.

CfgFileParser

public CfgFileParser(java.io.Reader rdr,
                     boolean wordSlashFlag)

Creates parser object which reads from the given stream. The comma character is parsed as part of a word token.

Parameters:

rdr - reader

wordSlashFlag - true to allow the forward-slash character to be parsed as part of a word token (this disables '//' comments); false to make the forward-slash character be a token separator.

CfgFileParser

public CfgFileParser(java.io.Reader rdr)

Creates parser object which reads from the given stream. The forward-slash character is treated as a separator and the comma character is parsed as part of a word token.

Parameters:

rdr - reader

Method Detail

resetInput

public void resetInput(java.io.Reader rdr)

Resets the input stream for this parser.

Parameters:

rdr - reader input stream object to use.

parseEqualsString

protected java.lang.String parseEqualsString()
                                      throws java.io.IOException

Parses "equals" sign ('=') followed by a string.

Returns:

The string if successful; returns null and builds error message if error.

Throws:

java.io.IOException

parseEqualsNumber

protected java.lang.Number parseEqualsNumber()
                                      throws java.io.IOException

Parses "equals" sign ('=') followed by a number.

Returns:

The number if successful; returns false and builds error message if error.

Throws:

java.io.IOException

setIllegalCharMsg

protected void setIllegalCharMsg(int charVal)

Builds "Illegal character" error message with given character value.

Parameters:

charVal - character value

setUnexpectedEOFMsg

protected void setUnexpectedEOFMsg()

Builds "Unexpected end-of-file" error message.

setNoOpenBracketMsg

protected void setNoOpenBracketMsg()

Builds "Open bracket not found" error message.

setNoCloseBracketMsg

protected void setNoCloseBracketMsg()

Builds "Close bracket not found" error message.

setDupFieldMsg

protected void setDupFieldMsg(java.lang.String fieldName)

Builds "Duplicate entry for field" error message with given string.

Parameters:

fieldName - field name

getErrorMessage

public java.lang.String getErrorMessage()

Returns message string for last error (or 'No error' if none).

Returns:

error message