Package net.sf.saxon.event

Examples of net.sf.saxon.event.SequenceReceiver

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      * the current variables, etc.
      */

    public void process(XPathContext context) throws XPathException {
        SequenceIterator iter = value.iterate();
        SequenceReceiver out = context.getReceiver();
        while (true) {
            Item it = iter.next();
            if (it==null) break;
            out.append(it, 0, NodeInfo.ALL_NAMESPACES);
        }
    }
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     * @param context The dynamic context, giving access to the current node,
     *                the current variables, etc.
     */

    public void process(XPathContext context) throws XPathException {
        SequenceReceiver out = context.getReceiver();
        int numArgs = argument.length;
        // Start and end with an empty string to force space separation from any previous or following outputs
        out.append(StringValue.EMPTY_STRING, 0, 0);
        boolean empty = true;
        for (int i=0; i<numArgs; i++) {
            AtomicValue val = (AtomicValue)argument[i].evaluateItem(context);
            if (val!=null) {
                out.characters(val.getStringValueCS(), 0, 0);
                empty = false;
            }
        }
        if (!empty) {
            out.append(StringValue.EMPTY_STRING, 0, 0);
        }
    }
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    public void process(XPathContext context) throws XPathException {
        // This rather tortuous code is designed to ensure that we don't evaluate the
        // separator argument unless there are at least two items in the sequence.

        SequenceReceiver out = context.getReceiver();
        // Start and end with an empty string to force space separation from any previous or following outputs
        out.append(StringValue.EMPTY_STRING, 0, 0);

        SequenceIterator iter = argument[0].iterate(context);
        Item it = iter.next();
        if (it==null) {
            return;
        }

        CharSequence first = it.getStringValueCS();
        out.characters(first, 0, 0);

        it = iter.next();
        if (it==null) {
            out.append(StringValue.EMPTY_STRING, 0, 0);
            return;
        }

        // Type checking ensures that the separator is not an empty sequence
        CharSequence sep = argument[1].evaluateItem(context).getStringValueCS();
        out.characters(sep, 0, 0);
        out.characters(it.getStringValueCS(), 0, 0);

        while (true) {
            it = iter.next();
            if (it == null) {
                break;
            }
            out.characters(sep, 0, 0);
            out.characters(it.getStringValueCS(), 0, 0);
        }

        out.append(StringValue.EMPTY_STRING, 0, 0);
    }
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        if (next instanceof ItemChecker) {
            type = ((ItemChecker)next).getRequiredType();
            next = ((ItemChecker)next).getBaseExpression();
        }
        if ((next.getImplementationMethod() & PROCESS_METHOD) != 0 && !(type instanceof DocumentNodeTest)) {
            SequenceReceiver out = context.getReceiver();
            TypeCheckingFilter filter = new TypeCheckingFilter();
            filter.setUnderlyingReceiver(out);
            filter.setPipelineConfiguration(out.getPipelineConfiguration());
            filter.setRequiredType(type, requiredCardinality, role, this);
            context.setReceiver(filter);
            next.process(context);
            try {
                filter.close();
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            context.getController().recoverableError(err);
            return null;
        }

        int nscode = controller.getNamePool().allocateNamespaceCode(prefix, uri);
        SequenceReceiver out = context.getReceiver();
        out.namespace(nscode, ReceiverOptions.REJECT_DUPLICATES);
        return null;
    }
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    */

    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        String comment = expandChildren(context).toString();
        comment = checkContent(comment, context);
        SequenceReceiver out = context.getReceiver();
        out.comment(comment, locationId, 0);
        return null;
    }
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        Controller controller = context.getController();
        int nameCode = evaluateNameCode(context);
        if (nameCode == -1) {
            return null;
        }
        SequenceReceiver out = context.getReceiver();
        int opt = options;
        int ann = annotation;

      // we may need to change the namespace prefix if the one we chose is
      // already in use with a different namespace URI: this is done behind the scenes
      // by the Outputter

        String value = expandChildren(context).toString();
        if (schemaType != null) {
            // test whether the value actually conforms to the given type
            try {
                schemaType.validateContent(value, DummyNamespaceResolver.getInstance());
                if (schemaType.isNamespaceSensitive()) {
                    options |= ReceiverOptions.NEEDS_PREFIX_CHECK;
                }
            } catch (ValidationException err) {
                throw new ValidationException("Attribute value " + Err.wrap(value, Err.VALUE) +
                                               " does not match the required type " +
                                               schemaType.getDescription() + ". " +
                                               err.getMessage());
            }
        } else if (validationAction==Validation.STRICT ||
                validationAction==Validation.LAX) {
            long res = controller.getConfiguration().validateAttribute(nameCode,
                                                                         value,
                                                                         validationAction);
            ann = (int)(res & 0xffffffff);
            opt |= (int)(res >> 32);
        }
        try {
            out.attribute(nameCode, ann, value, locationId, opt);
        } catch (NoOpenStartTagException err) {
            //DynamicError e = new DynamicError("Cannot write an attribute node when no element start tag is open");
            err.setXPathContext(context);
            //e.setErrorCode("XT0410");
            context.getController().recoverableError(err);
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    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        Controller controller = context.getController();
        XPathContext c2 = context.newMinorContext();
        c2.setOrigin(this);
        SequenceReceiver out = c2.getReceiver();
        Item item = context.getContextItem();
        if (!(item instanceof NodeInfo)) {
            out.append(item, locationId);
            return null;
        }
        NodeInfo source = (NodeInfo)item;

        // Processing depends on the node kind.

        switch(source.getNodeKind()) {

        case Type.ELEMENT:
            // use the generic code for creating new elements
            return super.processLeavingTail(c2);

        case Type.ATTRIBUTE:
            try {
                CopyOf.copyAttribute(source, schemaType, validation, locationId, c2);
            } catch (NoOpenStartTagException err) {
                DynamicError e = new DynamicError(err.getMessage());
                e.setXPathContext(context);
                e.setErrorCode(err.getErrorCode());
                context.getController().recoverableError(e);
            }
            break;

        case Type.TEXT:
            out.characters(source.getStringValue(), locationId, 0);
            break;

        case Type.PROCESSING_INSTRUCTION:
            out.processingInstruction(source.getDisplayName(), source.getStringValue(), locationId, 0);
            break;

        case Type.COMMENT:
            out.comment(source.getStringValue(), locationId, 0);
            break;

        case Type.NAMESPACE:
            try {
                source.copy(out, NodeInfo.NO_NAMESPACES, false, locationId);
            } catch (NoOpenStartTagException err) {
                DynamicError e = new DynamicError(err.getMessage());
                e.setXPathContext(context);
                e.setErrorCode(err.getErrorCode());
                context.getController().recoverableError(e);
            }
            break;

        case Type.DOCUMENT:
            Receiver val = controller.getConfiguration().
                    getDocumentValidator(out,
                                         source.getBaseURI(),
                                         controller.getNamePool(),
                                         validation);
            if (val != out) {
                SequenceReceiver sr = new TreeReceiver(val);
                sr.setConfiguration(controller.getConfiguration());
                c2.setReceiver(sr);
                val = sr;
            }
            val.setConfiguration(controller.getConfiguration());
            val.startDocument(0);
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    }

    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        Item item = evaluateItem(context);
        if (item != null) {
            SequenceReceiver out = context.getReceiver();
            out.append(item, locationId);
        }
        return null;
    }
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    * @return always returns null in this implementation
    */

    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        CharSequence value = expandChildren(context);
        SequenceReceiver out = context.getReceiver();
        out.characters(value, locationId, options);
        return null;
    }
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Related Classes of net.sf.saxon.event.SequenceReceiver

  • net.sf.saxon.expr.Atomizer
  • net.sf.saxon.expr.CardinalityChecker
  • net.sf.saxon.expr.Expression
  • net.sf.saxon.expr.ItemChecker
  • net.sf.saxon.expr.LetExpression
  • net.sf.saxon.expr.Literal
  • net.sf.saxon.expr.UserFunctionCall
  • net.sf.saxon.functions.Concat
  • net.sf.saxon.functions.Serialize
  • net.sf.saxon.functions.StringFn
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