Java XMLEventWriter.add方法代碼示例

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * Test XMLStreamWriter parsing a file with an external entity reference.
 */
@Test
public void testXMLStreamWriter() {

    try {
        XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
        XMLEventWriter eventWriter = outputFactory.createXMLEventWriter(System.out);
        XMLInputFactory inputFactory = XMLInputFactory.newInstance();
        String file = getClass().getResource("XMLEventWriterTest.xml").getPath();
        XMLEventReader eventReader = inputFactory.createXMLEventReader(new StreamSource(new File(file)));

        // adds the event to the consumer.
        eventWriter.add(eventReader);
        eventWriter.flush();
        eventWriter.close();

        // expected success
    } catch (Exception exception) {
        exception.printStackTrace();
        Assert.fail(exception.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * @bug 8139584
 * Verifies that the resulting XML contains the standalone setting.
 */
@Test
public void testCreateStartDocument_DOMWriter()
        throws ParserConfigurationException, XMLStreamException {

    XMLOutputFactory xof = XMLOutputFactory.newInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    XMLEventWriter eventWriter = xof.createXMLEventWriter(new DOMResult(doc));
    XMLEventFactory eventFactory = XMLEventFactory.newInstance();
    XMLEvent event = eventFactory.createStartDocument("iso-8859-15", "1.0", true);
    eventWriter.add(event);
    eventWriter.flush();
    Assert.assertEquals(doc.getXmlEncoding(), "iso-8859-15");
    Assert.assertEquals(doc.getXmlVersion(), "1.0");
    Assert.assertTrue(doc.getXmlStandalone());
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
void xmlToJson(InputStream xmlInput, OutputStream jsonOutput) throws XMLStreamException
{
   JsonXMLConfig config = new JsonXMLConfigBuilder()
         .autoArray(true)
         .autoPrimitive(false)
         .fieldPrefix("")
         .contentField("content")
         .build();
   
   XMLEventReader reader = XMLInputFactory.newInstance().createXMLEventReader(xmlInput);
   XMLEventWriter writer = new JsonXMLOutputFactory(config).createXMLEventWriter(jsonOutput);
   
   writer.add(reader);
   
   reader.close();
   writer.close();
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * Test: 6419687 NPE in XMLEventWriterImpl.
 */
@Test
public void testCR6419687() {

    try {
        InputStream in = getClass().getResourceAsStream("ReaderToWriterTest.wsdl");
        OutputStream out = new FileOutputStream(USER_DIR + "ReaderToWriterTest-out.xml");

        XMLEventReader reader = XML_INPUT_FACTORY.createXMLEventReader(in);
        XMLEventWriter writer = XML_OUTPUT_FACTORY.createXMLEventWriter(out, "UTF-8");
        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();
            writer.add(event);
        }
        reader.close();
        writer.close();
    } catch (XMLStreamException xmlStreamException) {
        xmlStreamException.printStackTrace();
        Assert.fail(xmlStreamException.toString());
    } catch (FileNotFoundException fileNotFoundException) {
        fileNotFoundException.printStackTrace();
        Assert.fail(fileNotFoundException.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * @bug 8139584
 * Verifies that the resulting XML contains the standalone setting.
 */
@Test
public void testCreateStartDocument() throws XMLStreamException {

    StringWriter stringWriter = new StringWriter();
    XMLOutputFactory out = XMLOutputFactory.newInstance();
    XMLEventFactory eventFactory = XMLEventFactory.newInstance();

    XMLEventWriter eventWriter = out.createXMLEventWriter(stringWriter);

    XMLEvent event = eventFactory.createStartDocument("iso-8859-15", "1.0", true);
    eventWriter.add(event);
    eventWriter.flush();
    Assert.assertTrue(stringWriter.toString().contains("encoding=\"iso-8859-15\""));
    Assert.assertTrue(stringWriter.toString().contains("version=\"1.0\""));
    Assert.assertTrue(stringWriter.toString().contains("standalone=\"yes\""));
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * Test: 6419687 NPE in XMLEventWriterImpl.
 */
@Test
public void testCR6419687() {

    try {
        InputStream in = getClass().getResourceAsStream("ReaderToWriterTest.wsdl");
        OutputStream out = new FileOutputStream("ReaderToWriterTest-out.xml");

        XMLEventReader reader = XML_INPUT_FACTORY.createXMLEventReader(in);
        XMLEventWriter writer = XML_OUTPUT_FACTORY.createXMLEventWriter(out, "UTF-8");
        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();
            writer.add(event);
        }
        reader.close();
        writer.close();
    } catch (XMLStreamException xmlStreamException) {
        xmlStreamException.printStackTrace();
        Assert.fail(xmlStreamException.toString());
    } catch (FileNotFoundException fileNotFoundException) {
        fileNotFoundException.printStackTrace();
        Assert.fail(fileNotFoundException.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
private void writeEvents(XMLEventReader reader, XMLEventWriter writer) throws XMLStreamException {
    while (reader.hasNext()) {
        XMLEvent event = reader.nextEvent();
        writer.add(event);
    }
    reader.close();
    writer.close();
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
@Test
public void testEventWriterWithStAXResultNStreamWriter() {
    String encoding = "";
    if (getSystemProperty("file.encoding").equals("UTF-8")) {
        encoding = " encoding=\"UTF-8\"";
    }
    final String EXPECTED_OUTPUT = "<?xml version=\"1.0\"" + encoding + "?><root></root>";

    try {
        XMLOutputFactory ofac = XMLOutputFactory.newInstance();
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        XMLStreamWriter swriter = ofac.createXMLStreamWriter(buffer);
        StAXResult res = new StAXResult(swriter);
        XMLEventWriter writer = ofac.createXMLEventWriter(res);

        XMLEventFactory efac = XMLEventFactory.newInstance();
        writer.add(efac.createStartDocument(null, "1.0"));
        writer.add(efac.createStartElement("", "", "root"));
        writer.add(efac.createEndElement("", "", "root"));
        writer.add(efac.createEndDocument());
        writer.close();

        Assert.assertEquals(buffer.toString(), EXPECTED_OUTPUT);
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail(e.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
@Test
public void testEventWriterWithStAXResultNEventWriter() {
    String encoding = "";
    if (getSystemProperty("file.encoding").equals("UTF-8")) {
        encoding = " encoding=\"UTF-8\"";
    }
    final String EXPECTED_OUTPUT = "<?xml version=\"1.0\"" + encoding + "?><root></root>";

    try {
        XMLOutputFactory ofac = XMLOutputFactory.newInstance();
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        XMLEventWriter writer = ofac.createXMLEventWriter(buffer);
        StAXResult res = new StAXResult(writer);
        writer = ofac.createXMLEventWriter(res);

        XMLEventFactory efac = XMLEventFactory.newInstance();
        writer.add(efac.createStartDocument(null, "1.0"));
        writer.add(efac.createStartElement("", "", "root"));
        writer.add(efac.createEndElement("", "", "root"));
        writer.add(efac.createEndDocument());
        writer.close();

        Assert.assertEquals(buffer.toString(), EXPECTED_OUTPUT);
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail(e.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
@Test
public void testEventWriterWithStAXResultNStreamWriter() {
    String encoding = "";
    if (System.getProperty("file.encoding").equals("UTF-8")) {
        encoding = " encoding=\"UTF-8\"";
    }
    final String EXPECTED_OUTPUT = "<?xml version=\"1.0\"" + encoding + "?><root></root>";

    try {
        XMLOutputFactory ofac = XMLOutputFactory.newInstance();
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        XMLStreamWriter swriter = ofac.createXMLStreamWriter(buffer);
        StAXResult res = new StAXResult(swriter);
        XMLEventWriter writer = ofac.createXMLEventWriter(res);

        XMLEventFactory efac = XMLEventFactory.newInstance();
        writer.add(efac.createStartDocument(null, "1.0"));
        writer.add(efac.createStartElement("", "", "root"));
        writer.add(efac.createEndElement("", "", "root"));
        writer.add(efac.createEndDocument());
        writer.close();

        Assert.assertEquals(buffer.toString(), EXPECTED_OUTPUT);
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail(e.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
@Test
public void testEventWriterWithStAXResultNEventWriter() {
    String encoding = "";
    if (System.getProperty("file.encoding").equals("UTF-8")) {
        encoding = " encoding=\"UTF-8\"";
    }
    final String EXPECTED_OUTPUT = "<?xml version=\"1.0\"" + encoding + "?><root></root>";

    try {
        XMLOutputFactory ofac = XMLOutputFactory.newInstance();
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        XMLEventWriter writer = ofac.createXMLEventWriter(buffer);
        StAXResult res = new StAXResult(writer);
        writer = ofac.createXMLEventWriter(res);

        XMLEventFactory efac = XMLEventFactory.newInstance();
        writer.add(efac.createStartDocument(null, "1.0"));
        writer.add(efac.createStartElement("", "", "root"));
        writer.add(efac.createEndElement("", "", "root"));
        writer.add(efac.createEndDocument());
        writer.close();

        Assert.assertEquals(buffer.toString(), EXPECTED_OUTPUT);
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail(e.toString());
    }
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
private static Consumer<XMLEvent> addTo(XMLEventWriter writer) {
    return evt -> {
        try {
            writer.add(evt);
        } catch (XMLStreamException e) {
            throw new IllegalArgumentException(e);
        }
    };
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
public void testEncodingXmlEventReader() throws Exception {
    TEST_XML_WITH_XML_HEADER_ISO_8859_1_AS_BYTE_ARRAY_STREAM.reset();
    XMLEventReader reader = null;
    XMLEventWriter writer = null;
    ByteArrayOutputStream output = null;
    try {
        // enter text encoded with Latin1
        reader = context.getTypeConverter().mandatoryConvertTo(XMLEventReader.class,
                TEST_XML_WITH_XML_HEADER_ISO_8859_1_AS_BYTE_ARRAY_STREAM);

        output = new ByteArrayOutputStream();
        // ensure UTF-8 encoding
        Exchange exchange = new DefaultExchange(context);
        exchange.setProperty(Exchange.CHARSET_NAME, UTF_8.toString());
        writer = context.getTypeConverter().mandatoryConvertTo(XMLEventWriter.class, exchange, output);
        while (reader.hasNext()) {
            writer.add(reader.nextEvent());
        }
    } finally {
        if (reader != null) {
            reader.close();
        }
        if (writer != null) {
            writer.close();
        }
    }
    assertNotNull(output);

    String result = new String(output.toByteArray(), UTF_8.name());
    // normalize the auotation mark
    if (result.indexOf('\'') > 0) {
        result = result.replace('\'', '"');
    }
    boolean equals = TEST_XML_WITH_XML_HEADER.equals(result) || TEST_XML_WITH_XML_HEADER_ISO_8859_1.equals(result);
    assertTrue("Should match header", equals);
}
 

import javax.xml.stream.XMLEventWriter; //導入方法依賴的package包/類
/**
 * Inspired by CR 6245284 Sun Stax /sjsxp.jar does not behave properly
 * during merge of xml files.
 */
@Test
public void testMerge() {

    try {
        // Create the XML input factory
        XMLInputFactory factory = XMLInputFactory.newInstance();

        // Create XML event reader 1
        InputStream inputStream1 = new FileInputStream(new File(XMLEventWriterTest.class.getResource("merge-1.xml").toURI()));
        XMLEventReader r1 = factory.createXMLEventReader(inputStream1);

        // Create XML event reader 2
        InputStream inputStream2 = new FileInputStream(new File(XMLEventWriterTest.class.getResource("merge-2.xml").toURI()));
        XMLEventReader r2 = factory.createXMLEventReader(inputStream2);

        // Create the output factory
        XMLOutputFactory xmlof = XMLOutputFactory.newInstance();

        // Create XML event writer
        XMLEventWriter xmlw = xmlof.createXMLEventWriter(System.out);

        // Read to first <product> element in document 1
        // and output to result document
        QName bName = new QName("b");

        while (r1.hasNext()) {
            // Read event to be written to result document
            XMLEvent event = r1.nextEvent();

            if (event.getEventType() == XMLEvent.END_ELEMENT) {

                // Start element - stop at <product> element
                QName name = event.asEndElement().getName();
                if (name.equals(bName)) {

                    QName zName = new QName("z");

                    boolean isZr = false;

                    while (r2.hasNext()) {
                        // Read event to be written to result document
                        XMLEvent event2 = r2.nextEvent();
                        // Output event
                        if (event2.getEventType() == XMLEvent.START_ELEMENT && event2.asStartElement().getName().equals(zName)) {
                            isZr = true;
                        }

                        if (xmlw != null && isZr) {
                            xmlw.add(event2);
                        }

                        // stop adding events after </z>
                        // i.e. do not write END_DOCUMENT :)
                        if (isZr && event2.getEventType() == XMLEvent.END_ELEMENT && event2.asEndElement().getName().equals(zName)) {
                            isZr = false;
                        }
                    }
                    xmlw.flush();
                }
            }

            // Output event
            if (xmlw != null) {
                xmlw.add(event);
            }
        }

        // Read to first <product> element in document 1
        // without writing to result document
        xmlw.close();

        // expected success
    } catch (Exception ex) {
        ex.printStackTrace();
        Assert.fail(ex.toString());
    }
}