Example usage for javax.xml.stream XMLEventReader nextEvent

Introduction

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

Prototype

public XMLEvent nextEvent() throws XMLStreamException;

Source Link

Document

Gets the next XMLEvent.

Usage

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

@Test(expected = UnsupportedOperationException.class)
public void testRemoveWithWrapperEventReader() throws Exception {
    final XMLEventReader reader = new WrappingEventReader(
            readerFactory.createXMLEventReader(IOUtils.toInputStream(SINGLE_ELEMENT_DOC_WHITESPACE)));
    assertTrue(reader.hasNext());/*from   w w  w  .  j  a va  2s .  c  o  m*/
    reader.nextEvent();
    reader.remove();
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

@Test
public void testPeekWithDefaultEventReader() throws Exception {
    // The input XML is:
    // <File><doc> </doc></File>

    final XMLEventReader reader = readerFactory
            .createXMLEventReader(IOUtils.toInputStream(SINGLE_ELEMENT_DOC_WHITESPACE_1));

    // START_DOCUMENT
    assertEquals(START_DOCUMENT, reader.peek().getEventType());
    reader.nextEvent();

    commonPeekFileTest(reader);//from   w ww .  j a  v a 2  s  .c o m

    // END_DOCUMENT
    assertEquals(END_DOCUMENT, reader.peek().getEventType());

    commonEndDocumentTest(reader);
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

@Test
public void testPeekWithWrapperEventReader() throws Exception {
    // The input XML is:
    // <File><doc> </doc></File>
    // But the wrapper should wrap it to:
    // <dcp xmlns="http://dataconservancy.org/schemas/dcm/1.0"><Files><File><doc> </doc></File></Files></dcp>

    final XMLEventReader reader = new WrappingEventReader(
            readerFactory.createXMLEventReader(IOUtils.toInputStream(SINGLE_ELEMENT_DOC_WHITESPACE_1)));

    // START_DOCUMENT
    assertEquals(START_DOCUMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(START_DOCUMENT, reader.peek().getEventType());
    assertEquals(START_DOCUMENT, reader.nextEvent().getEventType());

    // <dcp>
    assertEquals(START_ELEMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(START_ELEMENT, reader.peek().getEventType());
    assertEquals(START_ELEMENT, reader.nextEvent().getEventType());

    // <Files>
    assertEquals(START_ELEMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(START_ELEMENT, reader.peek().getEventType());
    assertEquals(START_ELEMENT, reader.nextEvent().getEventType());

    commonPeekFileTest(reader);/*  w w w  . j  a  va2s.  c om*/

    // </Files>
    assertEquals(END_ELEMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(END_ELEMENT, reader.peek().getEventType());
    assertEquals(END_ELEMENT, reader.nextEvent().getEventType());

    // </dcp>
    assertEquals(END_ELEMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(END_ELEMENT, reader.peek().getEventType());
    assertEquals(END_ELEMENT, reader.nextEvent().getEventType());

    // END_DOCUMENT
    assertEquals(END_DOCUMENT, reader.peek().getEventType());
    // idempotent
    assertEquals(END_DOCUMENT, reader.peek().getEventType());

    commonEndDocumentTest(reader);
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

private void commonPeekFileTest(XMLEventReader reader) throws XMLStreamException {
    // The input XML is:
    // <File><doc> </doc></File>

    // <File>
    XMLEvent peekEvent = reader.peek();
    assertEquals(START_ELEMENT, peekEvent.getEventType());
    assertEquals(E_FILE, peekEvent.asStartElement().getName().getLocalPart());
    // idempotent
    assertEquals(peekEvent, reader.peek());
    XMLEvent actualEvent = reader.nextEvent();
    assertEquals(peekEvent, actualEvent);

    // <doc>
    peekEvent = reader.peek();/*from ww w  .j ava  2 s  .  c o  m*/
    assertEquals(START_ELEMENT, peekEvent.getEventType());
    assertEquals("doc", peekEvent.asStartElement().getName().getLocalPart());
    // idempotent
    assertEquals(peekEvent, reader.peek());
    actualEvent = reader.nextEvent();
    assertEquals(peekEvent, actualEvent);

    peekEvent = reader.peek();
    assertEquals(CHARACTERS, peekEvent.getEventType());
    // idempotent
    assertEquals(peekEvent, reader.peek());
    actualEvent = reader.nextEvent();
    assertEquals(peekEvent, actualEvent);

    // </doc>
    peekEvent = reader.peek();
    assertEquals(END_ELEMENT, peekEvent.getEventType());
    assertEquals("doc", peekEvent.asEndElement().getName().getLocalPart());
    // idempotent
    assertEquals(peekEvent, reader.peek());
    actualEvent = reader.nextEvent();
    assertEquals(peekEvent, actualEvent);

    // </File>
    peekEvent = reader.peek();
    assertEquals(END_ELEMENT, peekEvent.getEventType());
    assertEquals(E_FILE, peekEvent.asEndElement().getName().getLocalPart());
    // idempotent
    assertEquals(peekEvent, reader.peek());
    actualEvent = reader.nextEvent();
    // fails, bc we are preserving namespaces? assertEquals(peekEvent, actualEvent);
    // do this instead
    assertEquals(peekEvent.asEndElement().getName().getLocalPart(),
            actualEvent.asEndElement().getName().getLocalPart());
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

private void commonStartDocumentNextTagTest(XMLEventReader reader) throws XMLStreamException {
    try {//from w w w. j ava  2  s  . c  o  m
        reader.nextTag();
        fail("Expected XMLStreamException");
    } catch (XMLStreamException e) {
        // expected
    }

    // bug in default impl?  I would expect a call to nextTag() to not change the
    // state in the underlying reader if an exception is thrown.
    //assertEquals(START_DOCUMENT, reader.nextEvent().getEventType());

    // but instead we have this behavior
    assertEquals(START_ELEMENT, reader.nextEvent().getEventType());
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

private void commonCloseTest(XMLEventReader reader) throws XMLStreamException {
    // The input XML is EITHER:
    // <File><doc> </doc></File>
    // OR/*from ww w.ja  va2 s  . c  om*/
    // <dcp xmlns="http://dataconservancy.org/schemas/dcm/1.0"><Files><File><doc> </doc></File></Files></dcp>
    // This test works with either case.
    reader.nextEvent(); // START_DOC
    reader.nextEvent(); // START_ELEMENT

    reader.close(); // no-op

    reader.nextEvent(); // START_ELEMENT
}

---

From source file:org.dataconservancy.model.builder.WrappingEventReaderTest.java

@Test
public void testDeliverableUnitWithWrappingEventReader() throws XMLStreamException {
    final XMLEventReader reader = new WrappingEventReader(
            readerFactory.createXMLEventReader(IOUtils.toInputStream(DU_XML)));

    XMLEvent e = reader.nextEvent();
    assertEquals(START_DOCUMENT, e.getEventType());

    e = reader.nextEvent();/*w w  w .j  ava 2  s. c o m*/
    assertEquals(COMMENT, e.getEventType());

    e = reader.nextEvent();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(Q_DCP, e.asStartElement().getName());

    e = reader.nextEvent();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(Q_DUS, e.asStartElement().getName());

    e = reader.nextEvent();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(Q_DU, e.asStartElement().getName());

    e = reader.nextEvent();
    assertEquals(CHARACTERS, e.getEventType());

    e = reader.nextEvent();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(new QName(NS_URI, "collection"), e.asStartElement().getName());

    // Skip to the <metadata> element
    while ((e = reader.nextTag()) != null) {
        if (e.isStartElement() && e.asStartElement().getName().getLocalPart().equals("metadata")) {
            break;
        }
    }

    e = reader.nextTag();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(new QName("http://www.amazon.com", "md"), e.asStartElement().getName());

    e = reader.nextTag();
    assertEquals(START_ELEMENT, e.getEventType());
    assertEquals(new QName("http://www.amazon.com", "origReleaseDate"), e.asStartElement().getName());
}

---

From source file:org.eclipse.smila.utils.xml.stax.XmlSnippetSplitter.java

/**
 * Parse for xml snippets. If a snippet is found the registered XmlSnippethandler is called.
 * //from  w  ww. ja  v  a2  s  .  c  o m
 * @param eventReader
 *          the XMLEventReader
 * @throws XMLStreamException
 *           StAX error.
 */
private void parse(final XMLEventReader eventReader) throws XMLStreamException {
    ByteArrayOutputStream outputStream = null;
    XMLEventWriter eventWriter = null;
    try {
        while (eventReader.hasNext()) {
            final XMLEvent event = eventReader.nextEvent();
            if (isSnippetBegin(event)) {
                // begin of snippet
                outputStream = new ByteArrayOutputStream();
                eventWriter = _outputFactory.createXMLEventWriter(outputStream);
                eventWriter.add(event);
            } else if (isSnippetEnd(event)) {
                // end of snippet
                if (eventWriter != null) {
                    eventWriter.add(event);
                    eventWriter.close();
                    _snippetHandler.handleSnippet(outputStream.toByteArray());
                    // reset eventWriter and outputStream
                    eventWriter = null;
                    outputStream = null;
                } // if
            } else if (eventWriter != null) {
                eventWriter.add(event);
            }
        } // while
    } finally {
        if (eventWriter != null) {
            eventWriter.close();
        }
    }
}

---

From source file:org.emonocot.job.io.StaxEventItemReader.java

/**
 * Responsible for moving the cursor before the StartElement of the fragment
 * root./*  ww  w . ja v  a 2  s .  co m*/
 *
 * This implementation simply looks for the next corresponding element, it
 * does not care about element nesting. You will need to override this
 * method to correctly handle composite fragments.
 * @param xmlEventReader Set the XML event reader
 * @return <code>true</code> if next fragment was found, <code>false</code>
 *         otherwise.
 */
protected final boolean moveCursorToNextFragment(final XMLEventReader xmlEventReader) {
    try {
        while (true) {
            while (xmlEventReader.peek() != null && !xmlEventReader.peek().isStartElement()) {
                xmlEventReader.nextEvent();
            }
            if (xmlEventReader.peek() == null) {
                return false;
            }
            QName startElementName = ((StartElement) xmlEventReader.peek()).getName();
            if (startElementName.getLocalPart().equals(fragmentRootElementName)) {
                if (fragmentRootElementNameSpace == null
                        || startElementName.getNamespaceURI().equals(fragmentRootElementNameSpace)) {
                    return true;
                }
            }
            xmlEventReader.nextEvent();

        }
    } catch (XMLStreamException e) {
        throw new DataAccessResourceFailureException("Error while reading from event reader", e);
    }
}

---

From source file:org.geoserver.backuprestore.reader.CatalogFileReader.java

/**
 * Responsible for moving the cursor before the StartElement of the fragment root.
 * /*from w w w. ja va  2s .c  o  m*/
 * This implementation simply looks for the next corresponding element, it does not care about element nesting. You will need to override this
 * method to correctly handle composite fragments.
 * 
 * @return <code>true</code> if next fragment was found, <code>false</code> otherwise.
 * 
 * @throws NonTransientResourceException if the cursor could not be moved. This will be treated as fatal and subsequent calls to read will return
 *         null.
 */
protected boolean moveCursorToNextFragment(XMLEventReader reader) {
    try {
        while (true) {
            while (reader.peek() != null && !reader.peek().isStartElement()) {
                reader.nextEvent();
            }
            if (reader.peek() == null) {
                return false;
            }
            QName startElementName = ((StartElement) reader.peek()).getName();
            if (isFragmentRootElementName(startElementName)) {
                return true;
            }
            reader.nextEvent();
        }
    } catch (XMLStreamException e) {
        return logValidationExceptions((T) null,
                new NonTransientResourceException("Error while reading from event reader", e));
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• »