Examples with StAXSource javax.xml.transform.stax.StAXSource used on opensource projects

Example 1 with StAXSource

use of javax.xml.transform.stax.StAXSource in project voltdb by VoltDB.

the class JDBCSQLXML method createStAXSource.

/**
     * Retrieves a new StAXSource for reading the XML value designated by this
     * SQLXML instance. <p>
     *
     * @param sourceClass The class of the source
     * @throws java.sql.SQLException if there is an error processing the XML
     *      value or if the given <tt>sourceClass</tt> is not supported.
     * @return a new StAXSource for reading the XML value designated by this
     *      SQLXML instance
     */
@SuppressWarnings("unchecked")
protected <T extends Source> T createStAXSource(Class<T> sourceClass) throws SQLException {
    StAXSource source = null;
    Constructor sourceCtor = null;
    Reader reader = null;
    XMLInputFactory factory = null;
    XMLEventReader eventReader = null;
    try {
        factory = XMLInputFactory.newInstance();
    } catch (FactoryConfigurationError ex) {
        throw Exceptions.sourceInstantiation(ex);
    }
    try {
        sourceCtor = (sourceClass == null) ? StAXSource.class.getConstructor(XMLEventReader.class) : sourceClass.getConstructor(XMLEventReader.class);
    } catch (SecurityException ex) {
        throw Exceptions.sourceInstantiation(ex);
    } catch (NoSuchMethodException ex) {
        throw Exceptions.sourceInstantiation(ex);
    }
    reader = getCharacterStreamImpl();
    try {
        eventReader = factory.createXMLEventReader(reader);
    } catch (XMLStreamException ex) {
        throw Exceptions.sourceInstantiation(ex);
    }
    try {
        source = (StAXSource) sourceCtor.newInstance(eventReader);
    } catch (SecurityException ex) {
        throw Exceptions.sourceInstantiation(ex);
    } catch (IllegalArgumentException ex) {
        throw Exceptions.sourceInstantiation(ex);
    } catch (IllegalAccessException ex) {
        throw Exceptions.sourceInstantiation(ex);
    } catch (InstantiationException ex) {
        throw Exceptions.sourceInstantiation(ex);
    } catch (InvocationTargetException ex) {
        throw Exceptions.sourceInstantiation(ex.getTargetException());
    } catch (ClassCastException ex) {
        throw Exceptions.sourceInstantiation(ex);
    }
    return (T) source;
}

Example 2 with StAXSource

use of javax.xml.transform.stax.StAXSource in project voltdb by VoltDB.

the class JDBCSQLXML method getSource.

/**
     * Returns a Source for reading the XML value designated by this SQLXML instance.
     * Sources are used as inputs to XML parsers and XSLT transformers.
     * <p>
     * Sources for XML parsers will have namespace processing on by default.
     * The systemID of the Source is implementation dependent.
     * <p>
     * The SQL XML object becomes not readable when this method is called and
     * may also become not writable depending on implementation.
     * <p>
     * Note that SAX is a callback architecture, so a returned
     * SAXSource should then be set with a content handler that will
     * receive the SAX events from parsing.  The content handler
     * will receive callbacks based on the contents of the XML.
     * <pre>
     *   SAXSource saxSource = sqlxml.getSource(SAXSource.class);
     *   XMLReader xmlReader = saxSource.getXMLReader();
     *   xmlReader.setContentHandler(myHandler);
     *   xmlReader.parse(saxSource.getInputSource());
     * </pre>
     *
     * @param sourceClass The class of the source, or null.
     * If the class is null, a vendor specifc Source implementation will be returned.
     * The following classes are supported at a minimum:
     * <pre>
     *   javax.xml.transform.dom.DOMSource - returns a DOMSource
     *   javax.xml.transform.sax.SAXSource - returns a SAXSource
     *   javax.xml.transform.stax.StAXSource - returns a StAXSource
     *   javax.xml.transform.stream.StreamSource - returns a StreamSource
     * </pre>
     * @return a Source for reading the XML value.
     * @throws SQLException if there is an error processing the XML value
     *   or if this feature is not supported.
     *   The getCause() method of the exception may provide a more detailed exception, for example,
     *   if an XML parser exception occurs.
     *   An exception is thrown if the state is not readable.
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since JDK 1.6 Build 79
     */
@SuppressWarnings("unchecked")
public synchronized <T extends Source> T getSource(Class<T> sourceClass) throws SQLException {
    checkClosed();
    checkReadable();
    final Source source = getSourceImpl(sourceClass);
    setReadable(false);
    setWritable(false);
    return (T) source;
}

Example 3 with StAXSource

use of javax.xml.transform.stax.StAXSource in project camel by apache.

the class ValidatingProcessor method doProcess.

protected void doProcess(Exchange exchange) throws Exception {
    Schema schema;
    if (isUseSharedSchema()) {
        schema = getSchema();
    } else {
        schema = createSchema();
    }
    Validator validator = schema.newValidator();
    // the underlying input stream, which we need to close to avoid locking files or other resources
    Source source = null;
    InputStream is = null;
    try {
        Result result = null;
        // only convert to input stream if really needed
        if (isInputStreamNeeded(exchange)) {
            is = getContentToValidate(exchange, InputStream.class);
            if (is != null) {
                source = getSource(exchange, is);
            }
        } else {
            Object content = getContentToValidate(exchange);
            if (content != null) {
                source = getSource(exchange, content);
            }
        }
        if (shouldUseHeader()) {
            if (source == null && isFailOnNullHeader()) {
                throw new NoXmlHeaderValidationException(exchange, headerName);
            }
        } else {
            if (source == null && isFailOnNullBody()) {
                throw new NoXmlBodyValidationException(exchange);
            }
        }
        //CAMEL-7036 We don't need to set the result if the source is an instance of StreamSource
        if (source instanceof DOMSource) {
            result = new DOMResult();
        } else if (source instanceof SAXSource) {
            result = new SAXResult();
        } else if (source instanceof StAXSource || source instanceof StreamSource) {
            result = null;
        }
        if (source != null) {
            // create a new errorHandler and set it on the validator
            // must be a local instance to avoid problems with concurrency (to be
            // thread safe)
            ValidatorErrorHandler handler = errorHandler.getClass().newInstance();
            validator.setErrorHandler(handler);
            try {
                LOG.trace("Validating {}", source);
                validator.validate(source, result);
                handler.handleErrors(exchange, schema, result);
            } catch (SAXParseException e) {
                // can be thrown for non well formed XML
                throw new SchemaValidationException(exchange, schema, Collections.singletonList(e), Collections.<SAXParseException>emptyList(), Collections.<SAXParseException>emptyList());
            }
        }
    } finally {
        IOHelper.close(is);
    }
}

Example 4 with StAXSource

use of javax.xml.transform.stax.StAXSource in project camel by apache.

the class XmlConverter method toStAXSource.

/**
     * Converts the source instance to a {@link StAXSource} or returns null if the conversion is not
     * supported (making it easy to derive from this class to add new kinds of conversion).
     * @throws FileNotFoundException
     * @throws XMLStreamException
     */
@Converter
public StAXSource toStAXSource(File file, Exchange exchange) throws FileNotFoundException, XMLStreamException {
    InputStream is = IOHelper.buffered(new FileInputStream(file));
    XMLStreamReader r = new StaxConverter().createXMLStreamReader(is, exchange);
    return new StAXSource(r);
}

Example 5 with StAXSource

use of javax.xml.transform.stax.StAXSource in project camel by apache.

the class XmlConverterTest method testToStAXSourceFromFile.

public void testToStAXSourceFromFile() throws Exception {
    XmlConverter conv = new XmlConverter();
    template.sendBodyAndHeader("file:target/xml", "<foo>bar</foo>", Exchange.FILE_NAME, "myxml.xml");
    File file = new File("target/xml/myxml.xml");
    StAXSource out = conv.toStAXSource(file, null);
    assertNotNull(out);
    assertEquals("<foo>bar</foo>", context.getTypeConverter().convertTo(String.class, out));
}