org.codehaus.stax2.ri.typed
Class DefaultValueDecoder

java.lang.Object
  org.codehaus.stax2.typed.ValueDecoder
      org.codehaus.stax2.ri.typed.DefaultValueDecoder

public class DefaultValueDecoder
extends ValueDecoder

Default implementation that strives for correctness and reasonable efficiency (at least for simple types). To simplify implementation, decoders are stateful.

Author:

Tatu Saloranta

Field Summary

protected int	mEnd Pointer to the pointer in lexical value after last included character.
protected int	mPtr Pointer to the next character to check, within lexical value
protected java.lang.String	mType
protected char[]	mValueBuffer

Constructor Summary

DefaultValueDecoder()

Method Summary

protected boolean	allWhitespace(char[] lexical, int start, int end)
protected boolean	allWhitespace(java.lang.String lexical, int start, int end)
boolean	decodeBoolean(char[] lexical, int start, int end)
boolean	decodeBoolean(java.lang.String lexical, int start, int end)
java.math.BigDecimal	decodeDecimal(char[] lexical, int start, int end)
java.math.BigDecimal	decodeDecimal(java.lang.String lexical, int start, int end)
double	decodeDouble(char[] lexical, int start, int end)
double	decodeDouble(java.lang.String lexical, int start, int end)
float	decodeFloat(char[] lexical, int start, int end)
float	decodeFloat(java.lang.String lexical, int start, int end)
int	decodeInt(char[] lexical, int start, int end)
int	decodeInt(java.lang.String lexical, int start, int end)
long	decodeLong(char[] lexical, int start, int end)
long	decodeLong(java.lang.String lexical, int start, int end)
protected java.lang.String	lexicalDesc(char[] lexical, int startOffset)
protected java.lang.String	lexicalDesc(java.lang.String lexical, int startOffset)
protected static int	parseInt(char[] digitChars, int start, int end) Fast method for parsing integers that are known to fit into regular 32-bit signed int type.
protected static int	parseInt(int num, char[] digitChars, int start, int end)
protected static int	parseInt(int num, java.lang.String digitChars, int start, int end)
protected static int	parseInt(java.lang.String digitChars, int start, int end)
static long	parseLong(char[] digitChars, int start, int end)
static long	parseLong(java.lang.String digitChars, int start, int end)
protected void	reportInvalidValue(char[] lexical, int startOffset)
protected void	reportInvalidValue(java.lang.String lexical)
protected void	reportInvalidValue(java.lang.String lexical, int startOffset)
protected void	reportMissingValue()
protected char	resetAndTrimLeading(char[] lexical, java.lang.String type, int start, int end)
protected char	resetAndTrimLeading(java.lang.String lexical, java.lang.String type, int start, int end)
protected int	skipSignAndZeroes(char[] lexical, char ch, boolean hasSign)
protected int	skipSignAndZeroes(java.lang.String lexical, char ch, boolean hasSign)
protected int	trimTrailingAndCheckDigits(char[] lexical)
protected int	trimTrailingAndCheckDigits(java.lang.String lexical) Method called to check that remaining String consists of zero or more digits, followed by zero or more white space, and nothing else; and to trim trailing white space, if any.

Methods inherited from class org.codehaus.stax2.typed.ValueDecoder

decodeBoolean, decodeInt, decodeLong

Methods inherited from class java.lang.Object

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

Field Detail

mType

protected java.lang.String mType

mValueBuffer

protected char[] mValueBuffer

mPtr

protected int mPtr

Pointer to the next character to check, within lexical value

mEnd

protected int mEnd

Pointer to the pointer in lexical value after last included character.

Constructor Detail

DefaultValueDecoder

public DefaultValueDecoder()

Method Detail

decodeInt

public int decodeInt(java.lang.String lexical,
                     int start,
                     int end)
              throws java.lang.IllegalArgumentException

Specified by:

decodeInt in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

decodeInt

public int decodeInt(char[] lexical,
                     int start,
                     int end)
              throws java.lang.IllegalArgumentException

Specified by:

decodeInt in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

decodeLong

public long decodeLong(java.lang.String lexical,
                       int start,
                       int end)
                throws java.lang.IllegalArgumentException

Specified by:

decodeLong in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

decodeLong

public long decodeLong(char[] lexical,
                       int start,
                       int end)
                throws java.lang.IllegalArgumentException

Specified by:

decodeLong in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

decodeFloat

public float decodeFloat(java.lang.String lexical,
                         int start,
                         int end)
                  throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeFloat

public float decodeFloat(char[] lexical,
                         int start,
                         int end)
                  throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeDouble

public double decodeDouble(java.lang.String lexical,
                           int start,
                           int end)
                    throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeDouble

public double decodeDouble(char[] lexical,
                           int start,
                           int end)
                    throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeDecimal

public java.math.BigDecimal decodeDecimal(java.lang.String lexical,
                                          int start,
                                          int end)
                                   throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeDecimal

public java.math.BigDecimal decodeDecimal(char[] lexical,
                                          int start,
                                          int end)
                                   throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

decodeBoolean

public boolean decodeBoolean(java.lang.String lexical,
                             int start,
                             int end)
                      throws java.lang.IllegalArgumentException

Specified by:

decodeBoolean in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

decodeBoolean

public boolean decodeBoolean(char[] lexical,
                             int start,
                             int end)
                      throws java.lang.IllegalArgumentException

Specified by:

decodeBoolean in class ValueDecoder

Throws:

java.lang.IllegalArgumentException

resetAndTrimLeading

protected char resetAndTrimLeading(java.lang.String lexical,
                                   java.lang.String type,
                                   int start,
                                   int end)

Parameters:

start - First character of the lexical value to process

end - Pointer character after last valid character of the lexical value

Returns:

First non-white space character from the String

resetAndTrimLeading

protected char resetAndTrimLeading(char[] lexical,
                                   java.lang.String type,
                                   int start,
                                   int end)

trimTrailingAndCheckDigits

protected int trimTrailingAndCheckDigits(java.lang.String lexical)

Method called to check that remaining String consists of zero or more digits, followed by zero or more white space, and nothing else; and to trim trailing white space, if any.

Returns:

Number of valid digits found; or -1 to indicate invalid input

trimTrailingAndCheckDigits

protected int trimTrailingAndCheckDigits(char[] lexical)

skipSignAndZeroes

protected int skipSignAndZeroes(java.lang.String lexical,
                                char ch,
                                boolean hasSign)

Returns:

Numeric value of the first non-zero character (or, in case of a zero value, zero)

skipSignAndZeroes

protected int skipSignAndZeroes(char[] lexical,
                                char ch,
                                boolean hasSign)

allWhitespace

protected final boolean allWhitespace(java.lang.String lexical,
                                      int start,
                                      int end)

allWhitespace

protected final boolean allWhitespace(char[] lexical,
                                      int start,
                                      int end)

reportMissingValue

protected void reportMissingValue()

reportInvalidValue

protected void reportInvalidValue(java.lang.String lexical)

reportInvalidValue

protected void reportInvalidValue(java.lang.String lexical,
                                  int startOffset)

reportInvalidValue

protected void reportInvalidValue(char[] lexical,
                                  int startOffset)

lexicalDesc

protected java.lang.String lexicalDesc(char[] lexical,
                                       int startOffset)

lexicalDesc

protected java.lang.String lexicalDesc(java.lang.String lexical,
                                       int startOffset)

parseInt

protected static final int parseInt(char[] digitChars,
                                    int start,
                                    int end)

Fast method for parsing integers that are known to fit into regular 32-bit signed int type. This means that length is between 1 and 9 digits (inclusive)

Returns:

Parsed integer value

parseInt

protected static final int parseInt(int num,
                                    char[] digitChars,
                                    int start,
                                    int end)

parseInt

protected static final int parseInt(java.lang.String digitChars,
                                    int start,
                                    int end)

parseInt

protected static final int parseInt(int num,
                                    java.lang.String digitChars,
                                    int start,
                                    int end)

parseLong

public static final long parseLong(char[] digitChars,
                                   int start,
                                   int end)

parseLong

public static final long parseLong(java.lang.String digitChars,
                                   int start,
                                   int end)