Examples of net.sf.saxon.s9api.XdmSequenceIterator

net.sf.saxon.s9api.XdmSequenceIterator
An iterator over an XPath sequence.
This class implements the standard Java Iterator interface.

Because the Iterator interface does not define any checked exceptions, the hasNext() method of this iterator throws an unchecked exception if a dynamic error occurs while evaluating the expression. Applications wishing to control error handling should take care to catch this exception.

                String charset = body.getAttributeValue(_charset);
                // FIXME: is utf-8 the right default?
                if (charset == null) { charset = "utf-8"; }


                // Make sure it's all characters
                XdmSequenceIterator iter = body.axisIterator(Axis.CHILD);
                while (iter.hasNext()) {
                    XdmNode node = (XdmNode) iter.next();
                    if (node.getNodeKind() != XdmNodeKind.TEXT) {
                        throw XProcException.stepError(28);
                    }
                }


                String escapedContent = decodeBase64(body, charset);
                StringWriter writer = new StringWriter();
                writer.write(escapedContent);
                writer.close();
                postContent = writer.toString();
            } else {
                if (jsonContentType(contentType)) {
                    postContent = XMLtoJSON.convert(body);
                } else if (xmlContentType(contentType)) {
                    Serializer serializer = makeSerializer();


                    try {
                        S9apiUtils.assertDocumentContent(body.axisIterator(Axis.CHILD));
                    } catch (XProcException xe) {
                        throw XProcException.stepError(22);
                    }


                    Vector<XdmNode> content = new Vector<XdmNode> ();
                    XdmSequenceIterator iter = body.axisIterator(Axis.CHILD);
                    while (iter.hasNext()) {
                        XdmNode node = (XdmNode) iter.next();
                        content.add(node);
                    }


                    // FIXME: set serializer properties appropriately!
                    StringWriter writer = new StringWriter();
                    serializer.setOutputWriter(writer);
                    S9apiUtils.serialize(runtime, content, serializer);
                    writer.close();
                    postContent = writer.toString();
                } else {
                    StringWriter writer = new StringWriter();
                    XdmSequenceIterator iter = body.axisIterator(Axis.CHILD);
                    while (iter.hasNext()) {
                        XdmNode node = (XdmNode) iter.next();
                        if (node.getNodeKind() != XdmNodeKind.TEXT) {
                            throw XProcException.stepError(28);
                        }
                        writer.write(node.getStringValue());
                    }

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            try {
                if (xmlContentType(bodyContentType)) {
                    Serializer serializer = makeSerializer();


                    Vector<XdmNode> content = new Vector<XdmNode> ();
                    XdmSequenceIterator iter = body.axisIterator(Axis.CHILD);
                    while (iter.hasNext()) {
                        XdmNode node = (XdmNode) iter.next();
                        content.add(node);
                    }


                    // FIXME: set serializer properties appropriately!
                    StringWriter writer = new StringWriter();
                    serializer.setOutputWriter(writer);
                    S9apiUtils.serialize(runtime, content, serializer);
                    writer.close();
                    //postContent += writer.toString();
                    byteContent.append(writer.toString());
                } else if (jsonContentType(contentType)) {
                    byteContent.append(XMLtoJSON.convert(body));
                } else if (!encodeBinary && "base64".equals(bodyEncoding)) {
                    byte[] decoded = Base64.decode(body.getStringValue());
                    byteContent.append(decoded, decoded.length);
                } else {
                    StringWriter writer = new StringWriter();
                    XdmSequenceIterator iter = body.axisIterator(Axis.CHILD);
                    while (iter.hasNext()) {
                        XdmNode node = (XdmNode) iter.next();
                        if (node.getNodeKind() != XdmNodeKind.TEXT) {
                            throw XProcException.stepError(28);
                        }
                        writer.write(node.getStringValue());
                    }

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        }
    }


    private String extractText(XdmNode doc) {
        String content = "";
        XdmSequenceIterator iter = doc.axisIterator(Axis.CHILD);
        while (iter.hasNext()) {
            XdmNode child = (XdmNode) iter.next();
            if (child.getNodeKind() == XdmNodeKind.ELEMENT || child.getNodeKind() == XdmNodeKind.TEXT) {
                content += child.getStringValue();
            }
        }
        return content;

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        json = S9apiUtils.getDocumentElement(json);


        if (c_body.equals(json.getNodeName())) {
            XdmNode jchild = null;
            XdmSequenceIterator iter = json.axisIterator(Axis.CHILD);
            while (iter.hasNext()) {
                XdmItem item = iter.next();
                if (item instanceof XdmNode) {
                    XdmNode child = (XdmNode) item;
                    if (child.getNodeKind() == XdmNodeKind.ELEMENT) {
                        if (jchild != null) {
                            throw new XProcException("Found c:body containing more than one JSON element?");

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            }
        }
    }


    private static void processChildren(XdmNode json, JSONStringer js, int context) throws JSONException {
        XdmSequenceIterator iter = json.axisIterator(Axis.CHILD);
        while (iter.hasNext()) {
            XdmItem item = iter.next();
            if (item instanceof XdmNode) {
                XdmNode child = (XdmNode) item;
                if (child.getNodeKind() == XdmNodeKind.ELEMENT) {
                    build(child, js, context);
                }

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        this.value = value;
        this.node = node;
        initialized = true;


        nsBindings = new Hashtable<String,String> ();
        XdmSequenceIterator nsIter = node.axisIterator(Axis.NAMESPACE);
        while (nsIter.hasNext()) {
            XdmNode ns = (XdmNode) nsIter.next();
            QName nodeName = ns.getNodeName();
            String uri = ns.getStringValue();


            if (nodeName == null) {
                // Huh?

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        baseURIStack.push(node.getBaseURI());


        matcher.addStartElement(node);


        boolean found = false;
        XdmSequenceIterator iter = node.axisIterator(Axis.ATTRIBUTE);
        while (iter.hasNext()) {
            XdmNode child = (XdmNode) iter.next();
            if (child.getNodeName().equals(xml_base)) {
                found = true;
                if ((all || addXmlBase || !node.getAttributeValue(xml_base).equals(xmlBase))
                    && !"".equals(xmlBase)) {
                    matcher.addAttribute(child, xmlBase);

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    public NamespaceBinding(XProcRuntime xproc, XdmNode node) {
        runtime = xproc;
        this.node = node;


        XdmSequenceIterator nsIter = node.axisIterator(Axis.NAMESPACE);
        while (nsIter.hasNext()) {
            XdmNode ns = (XdmNode) nsIter.next();
            nsBindings.put((ns.getNodeName()==null ? "" : ns.getNodeName().getLocalName()),ns.getStringValue());
        }
    }

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        }


        TreeWriter tree = new TreeWriter(runtime);
        tree.startDocument(doc.getBaseURI());


        XdmSequenceIterator iter = doc.axisIterator(Axis.CHILD);
        XdmNode child = (XdmNode) iter.next();
        while (child.getNodeKind() != XdmNodeKind.ELEMENT) {
            tree.addSubtree(child);
            child = (XdmNode) iter.next();
        }
        tree.addStartElement(child);
        tree.addAttributes(child);
        tree.startContent();


        if ("text/html".equals(contentType)) {
            XdmNode tagDoc = null;
            if ("tagsoup".equals(runtime.htmlParser())) {
                tagDoc = tagSoup(escapedContent);
            } else {
                tagDoc = parseHTML(escapedContent);
            }
            if (namespace == null) {
                tree.addSubtree(tagDoc);
            } else {
                remapDefaultNamespace(tree, tagDoc);
            }
        } else if ("application/json".equals(contentType) || "text/json".equals(contentType)) {
            JSONTokener jt = new JSONTokener(escapedContent);
            XdmNode jsonDoc = JSONtoXML.convert(runtime.getProcessor(), jt, runtime.jsonFlavor());
            tree.addSubtree(jsonDoc);
        } else if (!"application/xml".equals(contentType)) {
            throw XProcException.stepError(51);
        } else {
            // Put a wrapper around it so that it doesn't have to have a single root...
            escapedContent = "<wrapper>" + escapedContent + "</wrapper>";


            StringReader sr = new StringReader(escapedContent);


            // Make sure the nodes in the unescapedContent get the right base URI
            InputSource is = new InputSource(sr);
            is.setSystemId(doc.getBaseURI().toASCIIString());


            XdmNode unesc = runtime.parse(is);


            // Now ignore the wrapper that we added...
            XdmNode dummyWrapper = S9apiUtils.getDocumentElement(unesc);
            XdmSequenceIterator realNodes = dummyWrapper.axisIterator(Axis.CHILD);
            while (realNodes.hasNext()) {
                unesc = (XdmNode) realNodes.next();
                if (namespace == null) {
                    tree.addSubtree(unesc);
                } else {
                    remapDefaultNamespace(tree, unesc);
                }

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            */


            FingerprintedQName newName = new FingerprintedQName("", namespace, inode.getLocalPart());
            tree.addStartElement(newName, inode.getSchemaType(), newNS);


            XdmSequenceIterator iter = unescnode.axisIterator(Axis.ATTRIBUTE);
            while (iter.hasNext()) {
                XdmNode child = (XdmNode) iter.next();
                tree.addAttribute(child);
            }


            XdmSequenceIterator childNodes = unescnode.axisIterator(Axis.CHILD);
            while (childNodes.hasNext()) {
                XdmNode child = (XdmNode) childNodes.next();
                remapDefaultNamespace(tree, child);
            }
            
            tree.addEndElement();
        } else {

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