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

Example 6 with QNameValue

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

the class FunMax 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 arg = getArgument(0).eval(contextSequence, contextItem);
    if (arg.isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        boolean computableProcessing = false;
        // TODO : test if a range index is defined *iff* it is compatible with the collator
        final Collator collator = getCollator(contextSequence, contextItem, 2);
        final SequenceIterator iter = arg.unorderedIterator();
        AtomicValue max = null;
        while (iter.hasNext()) {
            final Item item = iter.nextItem();
            if (item instanceof QNameValue) {
                throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(item.getType()), arg);
            }
            AtomicValue value = item.atomize();
            // Duration values must either all be xs:yearMonthDuration values or must all be xs:dayTimeDuration values.
            if (Type.subTypeOf(value.getType(), Type.DURATION)) {
                value = ((DurationValue) value).wrap();
                if (value.getType() == Type.YEAR_MONTH_DURATION) {
                    if (max != null && max.getType() != Type.YEAR_MONTH_DURATION) {
                        throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(max.getType()) + " and " + Type.getTypeName(value.getType()), value);
                    }
                } else if (value.getType() == Type.DAY_TIME_DURATION) {
                    if (max != null && max.getType() != Type.DAY_TIME_DURATION) {
                        throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(max.getType()) + " and " + Type.getTypeName(value.getType()), value);
                    }
                } else {
                    throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(value.getType()), value);
                }
            // Any value of type xdt:untypedAtomic is cast to xs:double
            } else if (value.getType() == Type.UNTYPED_ATOMIC) {
                value = value.convertTo(Type.DOUBLE);
            }
            if (max == null) {
                max = value;
            } else {
                if (Type.getCommonSuperType(max.getType(), value.getType()) == Type.ATOMIC) {
                    throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(max.getType()) + " and " + Type.getTypeName(value.getType()), max);
                }
                // Any value of type xdt:untypedAtomic is cast to xs:double
                if (value.getType() == Type.UNTYPED_ATOMIC) {
                    value = value.convertTo(Type.DOUBLE);
                }
                // Numeric tests
                if (Type.subTypeOfUnion(value.getType(), Type.NUMBER)) {
                    // Don't mix comparisons
                    if (!Type.subTypeOfUnion(max.getType(), Type.NUMBER)) {
                        throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(max.getType()) + " and " + Type.getTypeName(value.getType()), max);
                    }
                    if (((NumericValue) value).isNaN()) {
                        // Type NaN correctly
                        value = value.promote(max);
                        if (value.getType() == Type.FLOAT) {
                            max = FloatValue.NaN;
                        } else {
                            max = DoubleValue.NaN;
                        }
                        // although result will be NaN, we need to continue on order to type correctly
                        continue;
                    } else {
                        max = max.promote(value);
                    }
                }
                // Ugly test
                if (max instanceof ComputableValue && value instanceof ComputableValue) {
                    // Type value correctly
                    value = value.promote(max);
                    max = (ComputableValue) max.max(collator, value);
                    computableProcessing = true;
                } else {
                    if (computableProcessing) {
                        throw new XPathException(this, ErrorCodes.FORG0006, "Cannot compare " + Type.getTypeName(max.getType()) + " and " + Type.getTypeName(value.getType()), max);
                    }
                    if (Collations.compare(collator, value.getStringValue(), max.getStringValue()) > 0) {
                        max = value;
                    }
                }
            }
        }
        result = max;
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 7 with QNameValue

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

the class FunNodeName method eval.

@Override
public Sequence eval(Sequence contextSequence, final 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());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    // If we have one argument, we take it into account
    final Sequence seq;
    if (getSignature().getArgumentCount() > 0) {
        seq = getArgument(0).eval(contextSequence, contextItem);
    } else {
        // Otherwise, we take the context sequence and we iterate over it
        seq = contextSequence;
    }
    if (seq == null) {
        throw new XPathException(this, ErrorCodes.XPDY0002, "Undefined context item");
    }
    final Sequence result;
    if (seq.isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        final Item item = seq.itemAt(0);
        if (!Type.subTypeOf(item.getType(), Type.NODE)) {
            throw new XPathException(this, ErrorCodes.XPTY0004, "item is not a node; got '" + Type.getTypeName(item.getType()) + "'");
        }
        // TODO : how to improve performance ?
        final Node n = ((NodeValue) item).getNode();
        // Returns an expanded-QName for node kinds that can have names.
        if (n instanceof INode) {
            final QName qn = ((INode) n).getQName();
            if (qn.equals(QName.EMPTY_QNAME)) {
                result = Sequence.EMPTY_SEQUENCE;
            } else {
                result = new QNameValue(context, qn);
            }
        // For other kinds of nodes it returns the empty sequence.
        } else {
            result = Sequence.EMPTY_SEQUENCE;
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 8 with QNameValue

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

the class QNameFunctions method eval.

/* (non-Javadoc)
	 * @see org.exist.xquery.BasicFunction#eval(org.exist.xquery.value.Sequence[], org.exist.xquery.value.Sequence)
	 */
public Sequence eval(Sequence[] args, Sequence contextSequence) 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);
        }
    }
    Sequence result;
    if (args[0].isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        final QNameValue value = (QNameValue) args[0].itemAt(0);
        final QName qname = value.getQName();
        if (isCalledAs("prefix-from-QName")) {
            final String prefix = qname.getPrefix();
            if (prefix == null || prefix.isEmpty()) {
                result = Sequence.EMPTY_SEQUENCE;
            } else {
                result = new StringValue(prefix, Type.NCNAME);
            }
        } else if (isCalledAs("local-name-from-QName")) {
            result = new StringValue(qname.getLocalPart(), Type.NCNAME);
        } else {
            // fn:namespace-uri-from-QName
            String uri = qname.getNamespaceURI();
            if (uri == null) {
                uri = "";
            }
            result = new AnyURIValue(uri);
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 9 with QNameValue

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

the class FunError method eval.

@Override
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
    // Define default values
    ErrorCode errorCode = DEFAULT_ERROR;
    String errorDesc = DEFAULT_DESCRIPTION;
    Sequence errorVal = Sequence.EMPTY_SEQUENCE;
    // Enter if one or more parameters are supplied
    if (args.length > 0) {
        // use 2nd argument for error description
        if (args.length > 1) {
            errorDesc = args[1].getStringValue();
        }
        // and construct error code
        if (!args[0].isEmpty()) {
            QName errorQName = ((QNameValue) args[0].itemAt(0)).getQName();
            String prefix = errorQName.getPrefix();
            if (prefix == null) {
                final String ns = errorQName.getNamespaceURI();
                prefix = getContext().getPrefixForURI(ns);
                errorQName = new QName(errorQName.getLocalPart(), errorQName.getNamespaceURI(), prefix);
            }
            errorCode = new ErrorCode(errorQName, errorDesc);
        }
        // If there is a third argument, use it.
        if (args.length == 3) {
            errorVal = args[2];
        }
    }
    if (LOG.isTraceEnabled()) {
        logger.trace("{}: {}", errorDesc, errorCode.toString());
    }
    throw new XPathException(this, errorCode, errorDesc, errorVal);
}

Example 10 with QNameValue

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

the class FunctionAvailable method eval.

@Override
public Sequence eval(final Sequence[] args, final Sequence contextSequence) throws XPathException {
    final QName functionName = ((QNameValue) args[0].itemAt(0)).getQName();
    final int arity = ((IntegerValue) args[1].itemAt(0)).getInt();
    final org.exist.xquery.Module[] modules = context.getModules(functionName.getNamespaceURI());
    boolean found = false;
    if (isEmpty(modules)) {
        found = context.resolveFunction(functionName, arity) != null;
    } else {
        for (final org.exist.xquery.Module module : modules) {
            if (module instanceof InternalModule) {
                found = ((InternalModule) module).getFunctionDef(functionName, arity) != null;
            } else if (module instanceof ExternalModule) {
                found = ((ExternalModule) module).getFunction(functionName, arity, context) != null;
            }
            if (found) {
                break;
            }
        }
    }
    return BooleanValue.valueOf(found);
}