Examples with XSDouble org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble used on opensource projects

Example 1 with XSDouble

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble in project webtools.sourceediting by eclipse.

the class FnMax method max.

/**
 * Max operation.
 *
 * @param args
 *            Result from the expressions evaluation.
 * @param context
 *            Relevant dynamic context
 * @throws DynamicError
 *             Dynamic error.
 * @return Result of fn:max operation.
 */
public static ResultSequence max(Collection args, DynamicContext dynamicContext) throws DynamicError {
    ResultSequence arg = get_arg(args, CmpGt.class);
    if (arg.empty())
        return ResultSequenceFactory.create_new();
    CmpGt max = null;
    TypePromoter tp = new ComparableTypePromoter();
    tp.considerSequence(arg);
    for (Iterator i = arg.iterator(); i.hasNext(); ) {
        AnyAtomicType conv = tp.promote((AnyType) i.next());
        if (conv != null) {
            if (conv instanceof XSDouble && ((XSDouble) conv).nan() || conv instanceof XSFloat && ((XSFloat) conv).nan()) {
                return ResultSequenceFactory.create_new(tp.promote(new XSFloat(Float.NaN)));
            }
            if (max == null || ((CmpGt) conv).gt((AnyType) max, dynamicContext)) {
                max = (CmpGt) conv;
            }
        }
    }
    return ResultSequenceFactory.create_new((AnyType) max);
}

Example 2 with XSDouble

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble in project webtools.sourceediting by eclipse.

the class Function method convert_argument.

// convert argument according to section 3.1.5 of xpath 2.0 spec
/**
 * Convert the input argument according to section 3.1.5 of specification.
 *
 * @param arg
 *            input argument.
 * @param expected
 *            Expected Sequence type.
 * @throws DynamicError
 *             Dynamic error.
 * @return Converted argument.
 */
public static org.eclipse.wst.xml.xpath2.api.ResultSequence convert_argument(org.eclipse.wst.xml.xpath2.api.ResultSequence arg, SeqType expected) throws DynamicError {
    ResultBuffer result = new ResultBuffer();
    // XXX: Should use type_class instead and use item.getClass().isAssignableTo(expected.type_class())
    AnyType expected_type = expected.type();
    // expected is atomic
    if (expected_type instanceof AnyAtomicType) {
        AnyAtomicType expected_aat = (AnyAtomicType) expected_type;
        // atomize
        org.eclipse.wst.xml.xpath2.api.ResultSequence rs = FnData.atomize(arg);
        // cast untyped to expected type
        for (Iterator i = rs.iterator(); i.hasNext(); ) {
            AnyType item = (AnyType) i.next();
            if (item instanceof XSUntypedAtomic) {
                // create a new item of the expected
                // type initialized with from the string
                // value of the item
                ResultSequence converted = null;
                if (expected_aat instanceof XSString) {
                    XSString strType = new XSString(item.getStringValue());
                    converted = ResultSequenceFactory.create_new(strType);
                } else {
                    converted = ResultSequenceFactory.create_new(item);
                }
                result.concat(converted);
            } else // xs:anyURI promotion to xs:string
            if (item instanceof XSAnyURI && expected_aat instanceof XSString) {
                result.add(new XSString(item.getStringValue()));
            } else // numeric type promotion
            if (item instanceof NumericType) {
                if (expected_aat instanceof XSDouble) {
                    XSDouble doubleType = new XSDouble(item.getStringValue());
                    result.add(doubleType);
                } else {
                    result.add(item);
                }
            } else {
                result.add(item);
            }
        }
        // do sequence type matching on converted arguments
        return expected.match(result.getSequence());
    } else {
        // do sequence type matching on converted arguments
        return expected.match(arg);
    }
}

Example 3 with XSDouble

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble in project webtools.sourceediting by eclipse.

the class FnMin method min.

/**
 * Min operation.
 *
 * @param args
 *            Result from the expressions evaluation.
 * @param dynamic
 *            Dynamic context
 * @throws DynamicError
 *             Dynamic error.
 * @return Result of fn:min operation.
 */
public static ResultSequence min(Collection args, DynamicContext context) throws DynamicError {
    ResultSequence arg = FnMax.get_arg(args, CmpLt.class);
    if (arg.empty())
        return ResultSequenceFactory.create_new();
    CmpLt max = null;
    TypePromoter tp = new ComparableTypePromoter();
    tp.considerSequence(arg);
    for (Iterator i = arg.iterator(); i.hasNext(); ) {
        AnyAtomicType conv = tp.promote((AnyType) i.next());
        if (conv != null) {
            if (conv instanceof XSDouble && ((XSDouble) conv).nan() || conv instanceof XSFloat && ((XSFloat) conv).nan()) {
                return ResultSequenceFactory.create_new(tp.promote(new XSFloat(Float.NaN)));
            }
            if (max == null || ((CmpLt) conv).lt((AnyType) max, context)) {
                max = (CmpLt) conv;
            }
        }
    }
    return ResultSequenceFactory.create_new((AnyType) max);
}

Example 4 with XSDouble

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble in project webtools.sourceediting by eclipse.

the class FnSubstring method substring.

/**
 * Obtain a substring from the arguments.
 *
 * @param args
 *            are used to obtain a substring.
 * @throws DynamicError
 *             Dynamic error.
 * @return The result of obtaining a substring from the arguments.
 */
public static ResultSequence substring(Collection args) throws DynamicError {
    Collection cargs = Function.convert_arguments(args, expected_args(args));
    Iterator argi = cargs.iterator();
    ResultSequence stringArg = (ResultSequence) argi.next();
    ResultSequence startPosArg = (ResultSequence) argi.next();
    ResultSequence lengthArg = null;
    if (argi.hasNext()) {
        lengthArg = (ResultSequence) argi.next();
    }
    if (stringArg.empty()) {
        return emptyString();
    }
    String str = ((XSString) stringArg.first()).value();
    double dstart = ((XSDouble) startPosArg.first()).double_value();
    // is start is NaN, no chars are returned
    if (Double.isNaN(dstart) || Double.NEGATIVE_INFINITY == dstart) {
        return emptyString();
    }
    long istart = Math.round(dstart);
    long ilength = Long.MAX_VALUE;
    if (lengthArg != null) {
        double dlength = ((XSDouble) lengthArg.first()).double_value();
        if (Double.isNaN(dlength))
            return emptyString();
        // Switch to the rounded kind
        ilength = Math.round(dlength);
        if (ilength <= 0)
            return emptyString();
    }
    // could guess too short in cases supplementary chars
    StringBuffer sb = new StringBuffer((int) Math.min(str.length(), ilength));
    // This looks like an inefficient way to iterate, but due to surrogate handling,
    // string indexes are no good here. Welcome to UTF-16!
    CodePointIterator strIter = new StringCodePointIterator(str);
    for (long p = 1; strIter.current() != CodePointIterator.DONE; ++p, strIter.next()) {
        if (istart <= p && p - istart < ilength)
            sb.append(UCharacter.toChars(strIter.current()));
    }
    return new XSString(sb.toString());
}

Example 5 with XSDouble

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSDouble in project webtools.sourceediting by eclipse.

the class FnAvg method avg.

/**
 * Average value operation.
 *
 * @param args
 *            Result from the expressions evaluation.
 * @throws DynamicError
 *             Dynamic error.
 * @return Result of fn:avg operation.
 */
public static ResultSequence avg(Collection args) throws DynamicError {
    ResultSequence arg = (ResultSequence) args.iterator().next();
    if (arg.empty())
        return ResultSequenceFactory.create_new();
    int elems = 0;
    MathPlus total = null;
    TypePromoter tp = new ScalarTypePromoter();
    tp.considerSequence(arg);
    for (Iterator i = arg.iterator(); i.hasNext(); ) {
        ++elems;
        AnyAtomicType conv = tp.promote((AnyType) i.next());
        if (conv != null) {
            if (conv instanceof XSDouble && ((XSDouble) conv).nan() || conv instanceof XSFloat && ((XSFloat) conv).nan()) {
                return ResultSequenceFactory.create_new(tp.promote(new XSFloat(Float.NaN)));
            }
            if (total == null) {
                total = (MathPlus) conv;
            } else {
                total = (MathPlus) total.plus(ResultSequenceFactory.create_new(conv)).first();
            }
        }
    }
    if (!(total instanceof MathDiv))
        DynamicError.throw_type_error();
    return ((MathDiv) total).div(ResultSequenceFactory.create_new(new XSInteger(BigInteger.valueOf(elems))));
}