Examples of javax.xml.stream.XMLOutputFactory

javax.xml.stream.XMLOutputFactory
Defines an abstract implementation of a factory for getting XMLEventWriters and XMLStreamWriters. The following table defines the standard properties of this specification. Each property varies in the level of support required by each implementation. The level of support required is described in the 'Required' column.

Configuration parameters

Property Name Behavior Return type Default Value Required

javax.xml.stream.isRepairingNamespaces defaults prefixes on the output side Boolean False Yes

The following paragraphs describe the namespace and prefix repair algorithm:

The property can be set with the following code line: setProperty("javax.xml.stream.isRepairingNamespaces",new Boolean(true|false));

This property specifies that the writer default namespace prefix declarations. The default value is false.

If a writer isRepairingNamespaces it will create a namespace declaration on the current StartElement for any attribute that does not currently have a namespace declaration in scope. If the StartElement has a uri but no prefix specified a prefix will be assigned, if the prefix has not been declared in a parent of the current StartElement it will be declared on the current StartElement. If the defaultNamespace is bound and in scope and the default namespace matches the URI of the attribute or StartElement QName no prefix will be assigned.

If an element or attribute name has a prefix, but is not bound to any namespace URI, then the prefix will be removed during serialization.

If element and/or attribute names in the same start or empty-element tag are bound to different namespace URIs and are using the same prefix then the element or the first occurring attribute retains the original prefix and the following attributes have their prefixes replaced with a new prefix that is bound to the namespace URIs of those attributes.

If an element or attribute name uses a prefix that is bound to a different URI than that inherited from the namespace context of the parent of that element and there is no namespace declaration in the context of the current element then such a namespace declaration is added.

If an element or attribute name is bound to a prefix and there is a namespace declaration that binds that prefix to a different URI then that namespace declaration is either removed if the correct mapping is inherited from the parent context of that element, or changed to the namespace URI of the element or attribute using that prefix.
@version 1.0 @author Copyright (c) 2003 by BEA Systems. All Rights Reserved. @see XMLInputFactory @see XMLEventWriter @see XMLStreamWriter

Configuration parameters
Property Name	Behavior	Return type	Default Value	Required
javax.xml.stream.isRepairingNamespaces	defaults prefixes on the output side	Boolean	False	Yes

  public void extract() {
    XMLInputFactory xif = XMLInputFactory.newInstance();
    XMLStreamReader reader = null;
    InputStream is = null;
    
    XMLOutputFactory xof = XMLOutputFactory.newInstance();
    XMLStreamWriter writer = null;
    OutputStream os = null;
    
    try {
      log.info("Reading data from " + inputFile);
      
      is = new FileInputStream(inputFile);
      reader = xif.createXMLStreamReader(is);
      
      os = new FileOutputStream(trainingOutputFile);
      writer = xof.createXMLStreamWriter(os);
      int trainingDataCount = extractXMLData(reader, writer, trainingDataSize);
      os.close();
      
      os = new FileOutputStream(testOutputFile);
      writer = xof.createXMLStreamWriter(os);
      int testDataCount = extractXMLData(reader, writer, testDataSize);
      os.close();
      
      log.info("Extracted " + trainingDataCount + " rows of training data");
      log.info("Extracted " + testDataCount     + " rows of test data");

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        }
    }


    private void writeInfoPlist(File file) throws IOException {
        Writer out = new BufferedWriter(new FileWriter(file));
        XMLOutputFactory output = XMLOutputFactory.newInstance();


        try {
            XMLStreamWriter xout = output.createXMLStreamWriter(out);


            // Write XML declaration
            xout.writeStartDocument();
            xout.writeCharacters("\n");

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            StAXArtifactProcessor<Composite> processor = staxProcessors.getProcessor(Composite.class);
            
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            try {
                XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
                XMLStreamWriter writer = outputFactory.createXMLStreamWriter(bos);
                processor.write(composite, writer);
                writer.flush();
                writer.close();
            } catch (Exception ex) {
                System.out.println(ex.toString());

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    private XMLInputFactory inputFactory;
    private XMLOutputFactory outputFactory;


    @Converter
    public XMLEventWriter createXMLEventWriter(OutputStream out, Exchange exchange) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            return factory.createXMLEventWriter(IOHelper.buffered(out), IOHelper.getCharsetName(exchange));
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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        }
    }
    
    @Converter
    public XMLEventWriter createXMLEventWriter(Writer writer) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            return factory.createXMLEventWriter(IOHelper.buffered(writer));
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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        }
    }


    @Converter
    public XMLEventWriter createXMLEventWriter(Result result) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            if (result instanceof DOMResult && !isWoodstox(factory)) {
                //FIXME - if not woodstox, this will likely not work well
                //likely should copy CXF's W3CDOM stuff
                LOG.info("DOMResult is known to have issues with {0}. We suggest using Woodstox",
                         factory.getClass());
            }
            return factory.createXMLEventWriter(result);
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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        }
    }
    
    @Converter
    public XMLStreamWriter createXMLStreamWriter(OutputStream outputStream, Exchange exchange) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            return factory.createXMLStreamWriter(IOHelper.buffered(outputStream), IOHelper.getCharsetName(exchange));
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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        }
    }


    @Converter
    public XMLStreamWriter createXMLStreamWriter(Writer writer) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            return factory.createXMLStreamWriter(IOHelper.buffered(writer));
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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        }
    }


    @Converter
    public XMLStreamWriter createXMLStreamWriter(Result result) throws XMLStreamException {
        XMLOutputFactory factory = getOutputFactory();
        try {
            if (result instanceof DOMResult && !isWoodstox(factory)) {
                //FIXME - if not woodstox, this will likely not work well
                //likely should copy CXF's W3CDOM stuff
                LOG.info("DOMResult is known to have issues with {0}. We suggest using Woodstox",
                         factory.getClass());
            }
            return factory.createXMLStreamWriter(result);
        } finally {
            returnXMLOutputFactory(factory);
        }
    }

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            INPUT_FACTORY_POOL.offer(factory);
        }
    }
    
    private XMLOutputFactory getXMLOutputFactory() {
        XMLOutputFactory f = OUTPUT_FACTORY_POOL.poll();
        if (f == null) {
            f = XMLOutputFactory.newInstance();
        }
        return f;
    }

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