Examples with NumericValue org.exist.xquery.value.NumericValue used on opensource projects

Example 6 with NumericValue

use of org.exist.xquery.value.NumericValue in project exist by eXist-db.

the class FunAbs method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.Expression#eval(org.exist.dom.persistent.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    Sequence result;
    final Sequence seq = getArgument(0).eval(contextSequence, contextItem);
    if (seq.isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        final Item item = seq.itemAt(0);
        NumericValue value;
        if (item instanceof NumericValue) {
            value = (NumericValue) item;
        } else {
            value = (NumericValue) item.convertTo(Type.NUMBER);
        }
        result = value.abs();
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 7 with NumericValue

use of org.exist.xquery.value.NumericValue in project exist by eXist-db.

the class FunAvg method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.Expression#eval(org.exist.dom.persistent.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    Sequence result;
    final Sequence inner = getArgument(0).eval(contextSequence, contextItem);
    if (inner.isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        final SequenceIterator iter = inner.iterate();
        Item item = iter.nextItem();
        AtomicValue value = item.atomize();
        // Any values of type xdt:untypedAtomic are cast to xs:double
        if (value.getType() == Type.UNTYPED_ATOMIC) {
            value = value.convertTo(Type.DOUBLE);
        }
        if (!(value instanceof ComputableValue)) {
            throw new XPathException(this, ErrorCodes.FORG0006, Type.getTypeName(value.getType()) + "(" + value + ") " + "can not be an operand in a sum", value);
        }
        // Set the first value
        ComputableValue sum = (ComputableValue) value;
        while (iter.hasNext()) {
            item = iter.nextItem();
            value = item.atomize();
            // Any value of type xdt:untypedAtomic are cast to xs:double
            if (value.getType() == Type.UNTYPED_ATOMIC) {
                value = value.convertTo(Type.DOUBLE);
            }
            if (!(value instanceof ComputableValue)) {
                throw new XPathException(this, ErrorCodes.FORG0006, "" + Type.getTypeName(value.getType()) + "(" + value + ") can not be an operand in a sum", value);
            }
            if (Type.subTypeOfUnion(value.getType(), Type.NUMBER)) {
                if (((NumericValue) value).isInfinite()) {
                    gotInfinity = true;
                }
                if (((NumericValue) value).isNaN()) {
                    sum = DoubleValue.NaN;
                    break;
                }
            }
            try {
                sum = (ComputableValue) sum.promote(value);
                // Aggregate next values
                sum = sum.plus((ComputableValue) value);
            } catch (final XPathException e) {
                throw new XPathException(this, ErrorCodes.FORG0006, e.getMessage());
            }
        }
        result = sum.div(new IntegerValue(inner.getItemCount()));
    }
    if (!gotInfinity) {
        if (Type.subTypeOfUnion(result.getItemType(), Type.NUMBER) && ((NumericValue) result).isInfinite()) {
        // Throw an overflow exception here since we get an infinity
        // whereas is hasn't been provided by the sequence
        // TODO ? -pb
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 8 with NumericValue

use of org.exist.xquery.value.NumericValue in project exist by eXist-db.

the class FunDistinctValues method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.Expression#eval(org.exist.xquery.StaticContext, org.exist.dom.persistent.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    final Sequence seq = getArgument(0).eval(contextSequence, contextItem);
    final Collator collator = getCollator(contextSequence, contextItem, 2);
    final TreeSet<AtomicValue> set = new TreeSet<>(new ValueComparator(collator));
    final ValueSequence result = new ValueSequence();
    Item item;
    AtomicValue value;
    boolean hasAlreadyNaN = false;
    for (final SequenceIterator i = seq.iterate(); i.hasNext(); ) {
        item = i.nextItem();
        value = item.atomize();
        if (!set.contains(value)) {
            if (Type.subTypeOfUnion(value.getType(), Type.NUMBER)) {
                if (((NumericValue) value).isNaN()) {
                    // contains multiple NaN values a single NaN is returned.
                    if (!hasAlreadyNaN) {
                        set.add(value);
                        result.add(value);
                        hasAlreadyNaN = true;
                    }
                } else {
                    set.add(value);
                    result.add(value);
                }
            } else {
                set.add(value);
                result.add(value);
            }
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 9 with NumericValue

use of org.exist.xquery.value.NumericValue in project exist by eXist-db.

the class RangeIndexConfigAttributeCondition method find.

@Override
public boolean find(Predicate predicate) {
    final Expression inner = this.getInnerExpression(predicate);
    Operator operator;
    Expression lhe;
    Expression rhe;
    // get the type of the expression inside the predicate and determine right and left hand arguments
    if (inner instanceof GeneralComparison) {
        final GeneralComparison comparison = (GeneralComparison) inner;
        operator = RangeQueryRewriter.getOperator(inner);
        lhe = comparison.getLeft();
        rhe = comparison.getRight();
    } else if (inner instanceof InternalFunctionCall) {
        // calls to matches() will not have been rewritten to a comparison, so check for function call
        final Function func = ((InternalFunctionCall) inner).getFunction();
        if (func.isCalledAs("matches")) {
            operator = Operator.MATCH;
            lhe = func.getArgument(0);
            rhe = func.getArgument(1);
            lhe = unwrapSubExpression(lhe);
            rhe = unwrapSubExpression(rhe);
        } else {
            // predicate expression cannot be parsed as condition
            return false;
        }
    } else {
        // predicate expression cannot be parsed as condition
        return false;
    }
    // find the attribute name and value pair from the predicate to check against
    // first assume attribute is on the left and value is on the right
    LocationStep testStep = findLocationStep(lhe);
    AtomicValue testValue = findAtomicValue(rhe);
    switch(this.operator) {
        case EQ:
        case NE:
            // check the other way around
            if (testStep == null && testValue == null) {
                testStep = findLocationStep(rhe);
                testValue = findAtomicValue(lhe);
            }
        case GT:
        case LT:
        case GE:
        case LE:
            // but the operator has to be inverted
            if (testStep == null && testValue == null) {
                testStep = findLocationStep(rhe);
                testValue = findAtomicValue(lhe);
                operator = invertOrdinalOperator(operator);
            }
    }
    if (testStep != null && testValue != null) {
        final QName qname = testStep.getTest().getName();
        Comparable foundValue;
        Comparable requiredValue;
        boolean valueTypeMatches;
        try {
            if (this.numericComparison) {
                valueTypeMatches = testValue instanceof NumericValue;
                requiredValue = this.numericValue;
                foundValue = testValue.toJavaObject(Double.class);
            } else {
                valueTypeMatches = testValue instanceof StringValue;
                if (this.caseSensitive) {
                    requiredValue = this.getLowercaseValue();
                    foundValue = testValue.getStringValue().toLowerCase();
                } else {
                    requiredValue = this.value;
                    foundValue = testValue.getStringValue();
                }
            }
            if (qname.getNameType() == ElementValue.ATTRIBUTE && operator.equals(this.operator) && qname.equals(this.attribute) && valueTypeMatches && foundValue.equals(requiredValue)) {
                return true;
            }
        } catch (XPathException e) {
            RangeIndex.LOG.error("Value conversion error when testing predicate for condition, value: {}", testValue.toString());
            RangeIndex.LOG.error(e);
        }
    }
    return false;
}

Example 10 with NumericValue

use of org.exist.xquery.value.NumericValue in project exist by eXist-db.

the class FunSum method eval.

public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    Sequence result;
    final Sequence inner = getArgument(0).eval(contextSequence, contextItem);
    if (inner.isEmpty()) {
        // If $zero is not specified, then the value returned for an empty sequence is the xs:integer value 0
        Sequence zero = IntegerValue.ZERO;
        if (getSignature().getArgumentCount() == 2) {
            zero = getArgument(1).eval(contextSequence, contextItem);
        }
        result = zero;
    } else {
        final SequenceIterator iter = inner.iterate();
        Item item = iter.nextItem();
        AtomicValue value = item.atomize();
        value = check(value, null);
        // Set the first value
        ComputableValue sum = (ComputableValue) value;
        while (iter.hasNext()) {
            item = iter.nextItem();
            value = item.atomize();
            value = check(value, sum);
            if (Type.subTypeOfUnion(value.getType(), Type.NUMBER)) {
                if (((NumericValue) value).isInfinite()) {
                    gotInfinity = true;
                }
                if (((NumericValue) value).isNaN()) {
                    sum = DoubleValue.NaN;
                    break;
                }
            }
            sum = (ComputableValue) sum.promote(value);
            // Aggregate next values
            sum = sum.plus((ComputableValue) value);
        }
        result = sum;
    }
    if (!gotInfinity) {
        if (Type.subTypeOfUnion(result.getItemType(), Type.NUMBER) && ((NumericValue) result).isInfinite()) {
        // Throw an overflow eception here since we get an infinity
        // whereas is hasn't been provided by the sequence
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}