/**
* "Parse" an XML document for the first occurrence of a particular tag and return its value, which is assumed to be a number.
*
* The parse terminates based on the rules for java.text.DecimalFormat, using the
* pattern and symbol sets for the default Locale.
*
* @param xmlDoc
* The target XML document.
* @param xmlTag
* The target tag <em>including</em> the enclosing angle brackets.
* @param xmlStart
* The character position (from zero) in the document at which to start
* looking for the target tag.
*
* @return
* <ul>
* <li>an integer representation of the element value</li>
* <li>-1 if:
* <ul>
* <li>not found</li>
* <li>the target tag is empty, for example, <code><part></part></code></li>
* <li>a parse error occurred</li>
* </ul>
* </li>
* </ul>
*
* @since 1.0
*/
public int getXmlValueNum(String xmlDoc, String xmlTag, ParsePosition xmlStart)
{
if (verboseDebugLvl)
{
MySession.myConsole.printf("%s.getXmlValueNum: xmlDoc =%n%s%nxmlTag = %s%nstartIdx = %d%n",
MY_CLASS_TAG, xmlDoc, xmlTag, xmlStart.getIndex());
}
parseFmt.setParseBigDecimal(false);
parsePos.setErrorIndex(-1);
int i = xmlDoc.IndexOf(xmlTag, xmlStart.getIndex());
if (i != -1)
{
parsePos.setIndex((i + xmlTag.Length));
if ((parseResult = parseFmt.parse(xmlDoc, parsePos)) != null)
{
return(parseResult.intValue());
}
}
return(-1);
}
/// <summary>
/// Converts a Java Number instance to a nullable int.
/// </summary>
/// <param name="n">Java Number instance</param>
/// <returns>Nullable int</returns>
public static int?ToNullableInt(this java.lang.Number n)
{
return(n == null ? (int?)null : n.intValue());
}
public static decimal ToDecimal(JavaNumber n)
{
if (n is JavaByte || n is JavaShort || n is JavaInteger)
{
return new decimal(n.intValue());
}
else if (n is JavaLong)
{
return new decimal(n.longValue());
}
else if (n is JavaFloat
|| n is JavaDouble)
{
return new decimal(n.doubleValue());
}
JavaBigDecimal bigDecimalValue = n as JavaBigDecimal;
if (bigDecimalValue != null)
{
if (bigDecimalValue.compareTo(MAX_DECIMAL) > 0
|| bigDecimalValue.compareTo(MIN_DECIMAL) < 0)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return decimal.Parse(bigDecimalValue.toPlainString());
}
return decimal.Parse(n.toString());
}
public static bool ToBoolean(JavaNumber n)
{
if (n is JavaInteger
|| n is JavaShort
|| n is JavaByte)
{
return (n.intValue() != 0);
}
else if (n is JavaLong)
{
return (n.longValue() != 0L);
}
else if (n is JavaDouble
|| n is JavaFloat)
{
return (n.doubleValue() != 0.0D);
}
JavaBigDecimal bigDecimalValue = n as JavaBigDecimal;
if (bigDecimalValue != null)
{
return !bigDecimalValue.equals(BIG_DECIMAL_0);
}
return (n.intValue() != 0);
}
public static sbyte ToTinyInt(JavaNumber n)
{
if (n is JavaByte)
{
return (sbyte) n.intValue();
}
const int max = 127;
const int min = -128;
if (n is JavaShort
|| n is JavaInteger)
{
int value = n.intValue();
if (max < value || value < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (sbyte) value;
}
else if (n is JavaLong)
{
long value = n.longValue();
if (max < value || value < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (sbyte)value;
}
else if (n is JavaDouble || n is JavaFloat)
{
double value = n.doubleValue();
if (JavaDouble.isNaN(value)
|| JavaDouble.isInfinite(value)
|| max < value
|| value < min)
{
throw NumericValueOutOfRange(n);
}
return (sbyte)value;
}
JavaBigDecimal bigDecimalValue = n as JavaBigDecimal;
if (bigDecimalValue != null)
{
JavaBigInteger bi = bigDecimalValue.toBigInteger();
if (bi.compareTo(MAX_TINYINT) > 0
|| bi.compareTo(MIN_TINYINT) < 0)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (sbyte) bi.intValue();
}
long longVaue = n.longValue();
if (max < longVaue || longVaue < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (sbyte)longVaue;
}
public static short ToSmallInt(JavaNumber n)
{
if (n is JavaByte
|| n is JavaShort)
{
return n.shortValue();
}
const int max = JavaShort.MAX_VALUE;
const int min = JavaShort.MIN_VALUE;
if (n is JavaInteger)
{
int value = n.intValue();
if (max < value || value < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (short) value;
}
if (n is JavaLong)
{
long value = n.longValue();
if (max < value || value < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (short) value;
}
if (n is JavaDouble || n is JavaFloat)
{
double value = n.doubleValue();
if (JavaDouble.isNaN(value)
|| JavaDouble.isInfinite(value)
|| max < value
|| value < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (short) value;
}
JavaBigDecimal bigDecimalValue = n as JavaBigDecimal;
if (bigDecimalValue != null)
{
JavaBigInteger bi = bigDecimalValue.toBigInteger();
if (bi.compareTo(MAX_SMALLINT) > 0
|| bi.compareTo(MIN_SMALLINT) < 0)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return bi.shortValue();
}
long l = n.longValue();
if (max < l || l < min)
{
throw HsqlConvert.NumericValueOutOfRange(n);
}
return (short) l;
}
/**
* "Parse" an XML document for the first occurrence of a particular tag and return its value, which is assumed to be a number.
*
* The parse terminates based on the rules for java.text.DecimalFormat, using the
* pattern and symbol sets for the default Locale.
*
* @param xmlDoc
* The target XML document.
* @param xmlTag
* The target tag <em>including</em> the enclosing angle brackets.
* @param xmlStart
* The character position (from zero) in the document at which to start
* looking for the target tag.
*
* @return
* <ul>
* <li>an integer representation of the element value</li>
* <li>-1 if:
* <ul>
* <li>not found</li>
* <li>the target tag is empty, for example, <code><part></part></code></li>
* <li>a parse error occurred</li>
* </ul>
* </li>
* </ul>
*
* @since 1.0
*/
public int getXmlValueNum(String xmlDoc, String xmlTag, ParsePosition xmlStart)
{
if (verboseDebugLvl)
{
MySession.myConsole.printf("%s.getXmlValueNum: xmlDoc =%n%s%nxmlTag = %s%nstartIdx = %d%n",
MY_CLASS_TAG, xmlDoc, xmlTag, xmlStart.getIndex());
}
parseFmt.setParseBigDecimal(false);
parsePos.setErrorIndex(-1);
int i = xmlDoc.IndexOf(xmlTag, xmlStart.getIndex());
if (i != -1)
{
parsePos.setIndex((i + xmlTag.Length));
if ((parseResult = parseFmt.parse(xmlDoc, parsePos)) != null)
{
return (parseResult.intValue());
}
}
return (-1);
}
