Examples with XMLEvent javax.xml.stream.events.XMLEvent used on opensource projects

Example 91 with XMLEvent

use of javax.xml.stream.events.XMLEvent in project structr by structr.

the class XMLStructureAnalyzer method getStructure.

public Map<String, Object> getStructure(final int threshold) {
    int level = 0;
    int exceptionCount = 0;
    while (reader.hasNext() && analysisCount < threshold && exceptionCount < XML_MAX_EXCEPTIONS) {
        try {
            final XMLEvent event = reader.nextEvent();
            final String tagName = getTagName(event);
            switch(event.getEventType()) {
                case XMLEvent.START_ELEMENT:
                    current = new Element(current, tagName, level++);
                    current.attributes.addAll(getAttributes(event.asStartElement()));
                    break;
                case XMLEvent.END_ELEMENT:
                    // one level up
                    current = current.parent;
                    level--;
                    // start analysis for elements with more than one occurrence
                    if (current != null && current.level == 0) {
                        analyze(current, structure);
                        analysisCount++;
                    }
                    break;
            }
        } catch (XMLStreamException strex) {
            logger.warn(strex.getMessage());
            exceptionCount++;
        }
    }
    if (exceptionCount == XML_MAX_EXCEPTIONS) {
        logger.info("Stopping XML processing at error threshold ({})", XML_MAX_EXCEPTIONS);
    }
    return structure;
}

Example 92 with XMLEvent

use of javax.xml.stream.events.XMLEvent in project sis by apache.

the class TransformingReader method nextTag.

/**
 * Forwards the call and keep trace of the XML elements opened up to this point.
 */
@Override
public XMLEvent nextTag() throws XMLStreamException {
    final XMLEvent event = in.nextTag();
    final XMLEvent next = nextEvent;
    if (next != null) {
        nextEvent = null;
        switch(event.getEventType()) {
            case START_ELEMENT:
            case END_ELEMENT:
                {
                    assert isWrapper(event, next) : event;
                    return event;
                }
        }
    }
    return convert(event);
}

Example 93 with XMLEvent

use of javax.xml.stream.events.XMLEvent in project rpki-validator-3 by RIPE-NCC.

the class RrdpParser method delta.

public Delta delta(final InputStream inputStream) {
    final Map<String, DeltaElement> objects = new HashMap<>();
    try {
        final XMLInputFactory factory = XMLInputFactory.newInstance();
        final XMLEventReader eventReader = factory.createXMLEventReader(inputStream);
        String sessionId = null;
        BigInteger serial = null;
        String uri = null;
        String hash = null;
        StringBuilder base64 = new StringBuilder();
        boolean inPublishElement = false;
        final Base64.Decoder decoder = Base64.getDecoder();
        while (eventReader.hasNext()) {
            final XMLEvent event = eventReader.nextEvent();
            switch(event.getEventType()) {
                case XMLStreamConstants.START_ELEMENT:
                    final StartElement startElement = event.asStartElement();
                    final String qName = startElement.getName().getLocalPart();
                    switch(qName) {
                        case "publish":
                            uri = getAttr(startElement, "uri", "Uri is not present in 'publish' element");
                            hash = getAttr(startElement, "hash");
                            inPublishElement = true;
                            break;
                        case "withdraw":
                            uri = getAttr(startElement, "uri", "Uri is not present in 'publish' element");
                            hash = getAttr(startElement, "hash", "Hash is not present in 'withdraw' element");
                            break;
                        case "delta":
                            serial = new BigInteger(getAttr(startElement, "serial", "Notification serial is not present"));
                            sessionId = getAttr(startElement, "session_id", "Session id is not present");
                            break;
                    }
                    break;
                case XMLStreamConstants.CHARACTERS:
                    final Characters characters = event.asCharacters();
                    if (inPublishElement) {
                        final String thisBase64 = characters.getData();
                        base64.append(thisBase64.replaceAll("\\s", ""));
                    }
                    break;
                case XMLStreamConstants.END_ELEMENT:
                    final EndElement endElement = event.asEndElement();
                    final String qqName = endElement.getName().getLocalPart();
                    switch(qqName) {
                        case "publish":
                            final byte[] decoded = decoder.decode(base64.toString());
                            objects.put(uri, new DeltaPublish(decoded, uri, Hex.parse(hash)));
                            base64 = new StringBuilder();
                            break;
                        case "withdraw":
                            objects.put(uri, new DeltaWithdraw(uri, Hex.parse(hash)));
                            break;
                    }
                    break;
            }
        }
        return new Delta(objects, sessionId, serial);
    } catch (XMLStreamException e) {
        throw new RrdpException("Couldn't parse snapshot: ", e);
    }
}

Example 94 with XMLEvent

use of javax.xml.stream.events.XMLEvent in project service-proxy by membrane.

the class XML2HTTP method slurpCharacterData.

private static String slurpCharacterData(XMLEventReader parser, StartElement sevent) throws XMLStreamException, XML2HTTPException {
    String name = sevent.getName().getLocalPart();
    StringBuilder value = new StringBuilder();
    while (parser.hasNext()) {
        XMLEvent event = parser.nextEvent();
        if (event.isCharacters()) {
            value.append(event.asCharacters().getData());
        } else if (event.isEndElement()) {
            break;
        } else {
            throw new XML2HTTPException("XML-HTTP doc <" + name + "> element contains non-character data.");
        }
    }
    return value.toString();
}

Example 95 with XMLEvent

use of javax.xml.stream.events.XMLEvent in project service-proxy by membrane.

the class TextUtil method isValidXMLSnippet.

/**
 * Checks whether s is a valid (well-formed and balanced) XML snippet.
 *
 * Note that attributes escaped by single quotes are accepted (which is illegal by spec).
 */
public static boolean isValidXMLSnippet(String s) {
    try {
        XMLEventReader parser;
        synchronized (xmlInputFactory) {
            parser = xmlInputFactory.createXMLEventReader(new StringReader("<a>" + s + "</a>"));
        }
        XMLEvent event = null;
        while (parser.hasNext()) {
            event = (XMLEvent) parser.next();
        }
        return event != null && event.isEndDocument();
    } catch (Exception e) {
        log.error("", e);
        return false;
    }
}