Examples with AttrList org.exist.util.serializer.AttrList used on opensource projects

Example 1 with AttrList

use of org.exist.util.serializer.AttrList in project exist by eXist-db.

the class SystemExport method writeXML.

/**
 * Serialize a document to XML, based on {@link XMLStreamReader}.
 *
 * @param doc      the document to serialize
 * @param receiver the output handler
 */
private void writeXML(final DocumentImpl doc, final Receiver receiver) {
    try {
        char[] ch;
        int nsdecls;
        final NamespaceSupport nsSupport = new NamespaceSupport();
        final NodeList children = doc.getChildNodes();
        final DocumentType docType = doc.getDoctype();
        if (docType != null) {
            receiver.documentType(docType.getName(), docType.getPublicId(), docType.getSystemId());
        }
        for (int i = 0; i < children.getLength(); i++) {
            final StoredNode child = (StoredNode) children.item(i);
            final int thisLevel = child.getNodeId().getTreeLevel();
            final int childLevel = child.getNodeType() == Node.ELEMENT_NODE ? thisLevel + 1 : thisLevel;
            final XMLStreamReader reader = broker.getXMLStreamReader(child, false);
            while (reader.hasNext()) {
                final int status = reader.next();
                switch(status) {
                    case XMLStreamReader.START_DOCUMENT:
                    case XMLStreamReader.END_DOCUMENT:
                        break;
                    case XMLStreamReader.START_ELEMENT:
                        nsdecls = reader.getNamespaceCount();
                        for (int ni = 0; ni < nsdecls; ni++) {
                            receiver.startPrefixMapping(reader.getNamespacePrefix(ni), reader.getNamespaceURI(ni));
                        }
                        final AttrList attribs = new AttrList();
                        for (int j = 0; j < reader.getAttributeCount(); j++) {
                            final QName qn = new QName(reader.getAttributeLocalName(j), reader.getAttributeNamespace(j), reader.getAttributePrefix(j));
                            attribs.addAttribute(qn, reader.getAttributeValue(j));
                        }
                        receiver.startElement(new QName(reader.getLocalName(), reader.getNamespaceURI(), reader.getPrefix()), attribs);
                        break;
                    case XMLStreamReader.END_ELEMENT:
                        receiver.endElement(new QName(reader.getLocalName(), reader.getNamespaceURI(), reader.getPrefix()));
                        nsdecls = reader.getNamespaceCount();
                        for (int ni = 0; ni < nsdecls; ni++) {
                            receiver.endPrefixMapping(reader.getNamespacePrefix(ni));
                        }
                        final NodeId otherId = (NodeId) reader.getProperty(ExtendedXMLStreamReader.PROPERTY_NODE_ID);
                        final int otherLevel = otherId.getTreeLevel();
                        if (childLevel != thisLevel && otherLevel == thisLevel) {
                            // exit-while
                            break;
                        }
                        break;
                    case XMLStreamReader.CHARACTERS:
                        receiver.characters(reader.getText());
                        break;
                    case XMLStreamReader.CDATA:
                        ch = reader.getTextCharacters();
                        receiver.cdataSection(ch, 0, ch.length);
                        break;
                    case XMLStreamReader.COMMENT:
                        ch = reader.getTextCharacters();
                        receiver.comment(ch, 0, ch.length);
                        break;
                    case XMLStreamReader.PROCESSING_INSTRUCTION:
                        receiver.processingInstruction(reader.getPITarget(), reader.getPIData());
                        break;
                }
                if (child.getNodeType() == Node.COMMENT_NODE || child.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
                    break;
                }
            }
            nsSupport.reset();
        }
    } catch (final IOException | SAXException | XMLStreamException e) {
        e.printStackTrace();
    }
}

Example 2 with AttrList

use of org.exist.util.serializer.AttrList in project exist by eXist-db.

the class EmbeddedXMLStreamReader method readAttributes.

private void readAttributes() {
    if (attributes == null) {
        final ElementEvent parent = elementStack.peek();
        final int count = getAttributeCount();
        attributes = new AttrList();
        for (int i = 0; i < count; i++) {
            final Value v = iterator.next();
            AttrImpl.addToList(broker, v.data(), v.start(), v.getLength(), attributes);
            parent.incrementChild();
        }
    }
}

Example 3 with AttrList

use of org.exist.util.serializer.AttrList in project exist by eXist-db.

the class Serializer method toSAX.

/**
 * Serializes an Item
 *
 * @param item The item to serialize
 * @param wrap Indicates whether the output should be wrapped
 * @param typed Indicates whether the output types should be wrapped
 *
 * @throws SAXException If an error occurs during serialization
 */
public void toSAX(final Item item, final boolean wrap, final boolean typed) throws SAXException {
    try {
        setStylesheetFromProperties(null);
    } catch (final TransformerConfigurationException e) {
        throw new SAXException(e.getMessage(), e);
    }
    setXSLHandler(null, false);
    final AttrList attrs = new AttrList();
    attrs.addAttribute(ATTR_HITS_QNAME, "1");
    attrs.addAttribute(ATTR_START_QNAME, "1");
    attrs.addAttribute(ATTR_COUNT_QNAME, "1");
    if (outputProperties.getProperty(PROPERTY_SESSION_ID) != null) {
        attrs.addAttribute(ATTR_SESSION_ID, outputProperties.getProperty(PROPERTY_SESSION_ID));
    }
    if (!documentStarted) {
        receiver.startDocument();
        documentStarted = true;
    }
    if (wrap) {
        receiver.startPrefixMapping("exist", Namespaces.EXIST_NS);
        receiver.startElement(ELEM_RESULT_QNAME, attrs);
    }
    itemToSAX(item, typed, wrap);
    if (wrap) {
        receiver.endElement(ELEM_RESULT_QNAME);
        receiver.endPrefixMapping("exist");
    }
    receiver.endDocument();
}

Example 4 with AttrList

use of org.exist.util.serializer.AttrList in project exist by eXist-db.

the class Serializer method toSAX.

/**
 * Serialize the items in the given sequence to SAX, starting with item start. If parameter
 * wrap is set to true, output a wrapper element to enclose the serialized items. The
 * wrapper element will be in namespace {@link org.exist.Namespaces#EXIST_NS} and has the following form:
 *
 * <exist:result hits="sequence length" start="value of start" count="value of count">
 *
 * @param seq The sequence to serialize
 * @param start The position in the sequence to start serialization from
 * @param count The number of items from the start position to serialize
 * @param wrap Indicates whether the output should be wrapped
 * @param typed Indicates whether the output types should be wrapped
 * @param compilationTime The time taken to compile the query which produced the sequence
 * @param executionTime The time taken to execute the query which produced the sequence
 *
 * @throws SAXException If an error occurs during serialization
 */
public void toSAX(final Sequence seq, int start, final int count, final boolean wrap, final boolean typed, final long compilationTime, final long executionTime) throws SAXException {
    try {
        setStylesheetFromProperties(null);
    } catch (final TransformerConfigurationException e) {
        throw new SAXException(e.getMessage(), e);
    }
    setXSLHandler(null, false);
    final AttrList attrs = new AttrList();
    attrs.addAttribute(ATTR_HITS_QNAME, Integer.toString(seq.getItemCount()));
    attrs.addAttribute(ATTR_START_QNAME, Integer.toString(start));
    attrs.addAttribute(ATTR_COUNT_QNAME, Integer.toString(count));
    if (outputProperties.getProperty(PROPERTY_SESSION_ID) != null) {
        attrs.addAttribute(ATTR_SESSION_ID, outputProperties.getProperty(PROPERTY_SESSION_ID));
    }
    attrs.addAttribute(ATTR_COMPILATION_TIME_QNAME, Long.toString(compilationTime));
    attrs.addAttribute(ATTR_EXECUTION_TIME_QNAME, Long.toString(compilationTime));
    if (!documentStarted) {
        receiver.startDocument();
        documentStarted = true;
    }
    if (wrap) {
        receiver.startPrefixMapping("exist", Namespaces.EXIST_NS);
        receiver.startElement(ELEM_RESULT_QNAME, attrs);
    }
    for (int i = --start; i < start + count; i++) {
        final Item item = seq.itemAt(i);
        if (item == null) {
            LOG.debug("item {} not found", i);
            continue;
        }
        itemToSAX(item, typed, wrap);
    }
    if (wrap) {
        receiver.endElement(ELEM_RESULT_QNAME);
        receiver.endPrefixMapping("exist");
    }
    receiver.endDocument();
}

Example 5 with AttrList

use of org.exist.util.serializer.AttrList in project exist by eXist-db.

the class Serializer method itemToSAX.

private void itemToSAX(final Item item, final boolean typed, final boolean wrap) throws SAXException {
    if (Type.subTypeOf(item.getType(), Type.NODE)) {
        final NodeValue node = (NodeValue) item;
        if (typed) {
            // TODO the typed and wrapped stuff should ideally be replaced
            // with Marshaller.marshallItem
            // unfortrunately calling Marshaller.marshallItem(broker, item, new SAXToReceiver(receiver))
            // results in a stack overflow
            // TODO consider a full XDM serializer in place of this for these special needs
            serializeTypePreNode(node);
            if (node.getType() == Type.ATTRIBUTE) {
                serializeTypeAttributeValue(node);
            } else {
                serializeToReceiver(node, false);
            }
            serializeTypePostNode(node);
        } else {
            serializeToReceiver(node, false);
        }
    } else {
        if (wrap) {
            final AttrList attrs = new AttrList();
            attrs.addAttribute(ATTR_TYPE_QNAME, Type.getTypeName(item.getType()));
            receiver.startElement(ELEM_VALUE_QNAME, attrs);
        }
        try {
            receiver.characters(item.getStringValue());
        } catch (final XPathException e) {
            throw new SAXException(e.getMessage(), e);
        }
        if (wrap) {
            receiver.endElement(ELEM_VALUE_QNAME);
        }
    }
}