Example usage for javax.xml.stream XMLEventReader hasNext

Introduction

In this page you can find the example usage for javax.xml.stream XMLEventReader hasNext.

Prototype

@Override
public boolean hasNext();

Source Link

Document

Check if there are more events.

Usage

From source file:com.predic8.membrane.core.util.SOAPUtil.java

public static boolean isSOAP(XMLInputFactory xmlInputFactory, XOPReconstitutor xopr, Message msg) {
    try {//from   ww w .  ja  va2 s  .  c o m
        XMLEventReader parser;
        synchronized (xmlInputFactory) {
            parser = xmlInputFactory.createXMLEventReader(xopr.reconstituteIfNecessary(msg));
        }

        while (parser.hasNext()) {
            XMLEvent event = parser.nextEvent();
            if (event.isStartElement()) {
                QName name = ((StartElement) event).getName();
                return (Constants.SOAP11_NS.equals(name.getNamespaceURI())
                        || Constants.SOAP12_NS.equals(name.getNamespaceURI()))
                        && "Envelope".equals(name.getLocalPart());
            }
        }
    } catch (Exception e) {
        log.warn("Ignoring exception: ", e);
    }
    return false;
}

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From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

private static void parseBuckets(XMLEventReader reader, LinearHistogram histogram) throws XMLStreamException {
    while (reader.hasNext()) {
        XMLEvent xmlEvent = reader.nextEvent();
        if (xmlEvent.isStartElement()) {
            StartElement startElement = xmlEvent.asStartElement();
            if (LATENCY_DIST_BUCKET.matches(startElement.getName().getLocalPart())) {
                parseBucket(reader, startElement, histogram);
            }//w ww.  j  av  a  2  s. co m
        } else if (xmlEvent.isEndElement()) {
            EndElement endElement = xmlEvent.asEndElement();
            if (!LATENCY_DIST_BUCKETS.matches(endElement.getName().getLocalPart())) {
                throw new XMLStreamException("Unexpected end element " + endElement.getName());
            }
            return;
        }
    }
}

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From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

public static Map<String, Result> read(InputStream inputStream) {
    Map<String, Result> result = new HashMap<String, Result>();
    XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
    try {/*w  w w.j  a  v a 2s .  c  om*/
        XMLEventReader reader = xmlInputFactory.createXMLEventReader(inputStream);
        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();
            if (event.isStartElement()) {
                StartElement startElement = event.asStartElement();
                if (PROBES_RESULT.matches(startElement.getName().getLocalPart())) {
                    parseProbesResult(reader, result);
                }
            }
        }
    } catch (XMLStreamException e) {
        e.printStackTrace();
    }
    return result;
}

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From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

private static Result parseMaxLatencyResult(XMLEventReader reader) throws XMLStreamException {
    Long maxLatency = null;/*from  www .ja  v  a 2s.c  o  m*/
    while (reader.hasNext()) {
        XMLEvent xmlEvent = reader.nextEvent();
        if (xmlEvent.isCharacters()) {
            maxLatency = Long.parseLong(xmlEvent.asCharacters().getData());
        } else if (xmlEvent.isEndElement()) {
            EndElement endElement = xmlEvent.asEndElement();
            if (!MAX_LATENCY.matches(endElement.getName().getLocalPart())) {
                throw new XMLStreamException("Unexpected end element " + endElement.getName());
            }
            if (maxLatency == null) {
                throw new XMLStreamException("Unexpected end element " + MAX_LATENCY.getName());
            }
            return new MaxLatencyResult(maxLatency);
        }
    }
    throw new XMLStreamException("Unexpected end of stream");
}

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From source file:com.predic8.membrane.core.util.SOAPUtil.java

public static boolean isFault(XMLInputFactory xmlInputFactory, XOPReconstitutor xopr, Message msg) {
    int state = 0;
    /*/*from ww  w.j a v  a2  s.  c om*/
     * 0: waiting for "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\">"
     * 1: waiting for "<soapenv:Body>" (skipping any "<soapenv:Header>")
     * 2: waiting for "<soapenv:Fault>"
     */
    try {
        XMLEventReader parser;
        synchronized (xmlInputFactory) {
            parser = xmlInputFactory.createXMLEventReader(xopr.reconstituteIfNecessary(msg));
        }

        while (parser.hasNext()) {
            XMLEvent event = parser.nextEvent();
            if (event.isStartElement()) {
                QName name = ((StartElement) event).getName();
                if (!Constants.SOAP11_NS.equals(name.getNamespaceURI())
                        && !Constants.SOAP12_NS.equals(name.getNamespaceURI()))
                    return false;

                if ("Header".equals(name.getLocalPart())) {
                    // skip header
                    int stack = 0;
                    while (parser.hasNext()) {
                        event = parser.nextEvent();
                        if (event.isStartElement())
                            stack++;
                        if (event.isEndElement())
                            if (stack == 0)
                                break;
                            else
                                stack--;
                    }
                    continue;
                }

                String expected;
                switch (state) {
                case 0:
                    expected = "Envelope";
                    break;
                case 1:
                    expected = "Body";
                    break;
                case 2:
                    expected = "Fault";
                    break;
                default:
                    return false;
                }
                if (expected.equals(name.getLocalPart())) {
                    if (state == 2)
                        return true;
                    else
                        state++;
                } else
                    return false;
            }
            if (event.isEndElement())
                return false;
        }
    } catch (Exception e) {
        log.warn("Ignoring exception: ", e);
    }
    return false;
}

---

From source file:Main.java

private static String printEvents(XMLEvent start, XMLEventReader xml, int indent) throws XMLStreamException {
    String ret = "\n";
    for (int i = 0; i < indent; i++) {
        ret += " ";
    }/* ww  w .  ja  v  a  2  s  .co  m*/
    ret += start + "\n";

    XMLEvent next = null;
    // Keep processing events...
    while (xml.hasNext()) {
        next = xml.nextEvent();
        // Delegate start tags to a new indentation level
        if (next.isStartElement()) {
            printEvents(next, xml, indent + 4);
        } else if (next.isEndElement()) {
            // We've found our end element. Add it and be done.
            for (int i = 0; i < indent; i++) {
                ret += " ";
            }
            ret += next + "\n";
            return ret;
        } else if (next.isCharacters() && next.asCharacters().isWhiteSpace()) {
            // Skip whitespace
            continue;
        } else {
            // Print the contents of this tag
            for (int i = 0; i < indent + 4; i++) {
                ret += " ";
            }
            ret += next + "\n";
        }
    }
    // Oh wow, we ran out of XML. Uh, return then?
    return ret;
}

---

From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

private static Result parseHdrLatencyProbeResult(XMLEventReader reader) throws XMLStreamException {
    String encodedData = null;/*from   w  w  w. j  a v  a  2s  .c  om*/
    while (reader.hasNext()) {
        XMLEvent xmlEvent = reader.nextEvent();
        if (xmlEvent.isCharacters()) {
            encodedData = xmlEvent.asCharacters().getData();
        } else if (xmlEvent.isEndElement()) {
            EndElement endElement = xmlEvent.asEndElement();
            if (!HDR_LATENCY_DATA.matches(endElement.getName().getLocalPart()) || encodedData == null) {
                throw new XMLStreamException("Unexpected end element " + endElement.getName());
            }
            try {
                byte[] bytes = Base64.decodeBase64(encodedData);
                Histogram histogram = Histogram.decodeFromCompressedByteBuffer(ByteBuffer.wrap(bytes), 0);
                return new HdrLatencyDistributionResult(histogram);
            } catch (DataFormatException e) {
                throw new RuntimeException(e);
            }
        }
    }
    throw new XMLStreamException("Unexpected end of stream");
}

---

From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

private static void parseProbesResult(XMLEventReader reader, Map<String, Result> result)
        throws XMLStreamException {
    while (reader.hasNext()) {
        XMLEvent event = reader.nextEvent();
        if (event.isStartElement()) {
            StartElement startElement = event.asStartElement();
            if (PROBE.matches(startElement.getName().getLocalPart())) {
                parseProbe(reader, startElement, result);
            }//from  w ww.j a  va2  s.  c  o  m
        } else if (event.isEndElement()) {
            EndElement endElement = event.asEndElement();
            boolean isProbeEnd = PROBE.matches(endElement.getName().getLocalPart());
            boolean isProbeResultEnd = PROBES_RESULT.matches(endElement.getName().getLocalPart());
            if (!isProbeEnd && !isProbeResultEnd) {
                throw new XMLStreamException("Unexpected end element " + endElement.getName());
            }
            if (isProbeResultEnd) {
                return;
            }
        }
    }
}

---

From source file:com.hazelcast.simulator.probes.probes.ProbesResultXmlReader.java

private static Result parseLatencyDistributionResult(XMLEventReader reader) throws XMLStreamException {
    Integer step = null;/*from   w  w  w .  ja v  a2s  .  c  o  m*/
    Integer maxValue = null;

    while (reader.hasNext()) {
        XMLEvent xmlEvent = reader.nextEvent();
        if (xmlEvent.isStartElement()) {
            StartElement startElement = xmlEvent.asStartElement();
            if (LATENCY_DIST_STEP.matches(startElement.getName().getLocalPart())) {
                if (step != null) {
                    throw new XMLStreamException("Unexpected element " + LATENCY_DIST_STEP.getName());
                }
                step = Integer.parseInt(parseCharsAndEndCurrentElement(reader));
            } else if (LATENCY_DIST_MAX_VALUE.matches(startElement.getName().getLocalPart())) {
                if (maxValue != null) {
                    throw new XMLStreamException("Unexpected element " + LATENCY_DIST_MAX_VALUE.getName());
                }
                maxValue = Integer.parseInt(parseCharsAndEndCurrentElement(reader));
            } else if (LATENCY_DIST_BUCKETS.matches(startElement.getName().getLocalPart())) {
                if (step == null || maxValue == null) {
                    throw new XMLStreamException("Unexpected element " + LATENCY_DIST_BUCKETS.getName());
                }
                LinearHistogram histogram = new LinearHistogram(maxValue, step);
                parseBuckets(reader, histogram);
                return new LatencyDistributionResult(histogram);
            }
        }
    }
    throw new XMLStreamException("Unexpected end of the document");
}

---

From source file:com.predic8.membrane.core.util.TextUtil.java

/**
 * 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).
 *//*from  w  w w . jav  a 2s  .  c  o  m*/
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;
    }
}

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