xmlstreamwriterimpl.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 650 行 · 第 1/2 页

        pushContext(qname);
      }

      _pendingTagName = qname;
      _shortTag = true;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeEmptyElement(String prefix, String localName,
                                String namespaceURI)
    throws XMLStreamException
  {
    flushPending();
    try {
      QName qname = new QName(namespaceURI, localName, prefix);

      if (_repair && _tracker.getPrefix(namespaceURI) == null) {
        // NOTE: We have to push before we declare because declare will
        // declare the namespace in the parent context if we don't
        flushContext();
        _tracker.push();

        _tracker.declare(prefix, namespaceURI, true);

        _tracker.setElementName(qname);
        _flushed = false;
      }
      else
        pushContext(qname);

      _pendingTagName = qname;
      _shortTag = true;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeEndDocument()
    throws XMLStreamException
  {
  }

  public void writeEndElement()
    throws XMLStreamException
  {
    writeEndElement(null, null);
  }

  public void writeEndElement(String localName)
    throws XMLStreamException
  {
    writeEndElement(null, localName);
  }

  public void writeEndElement(String namespaceURI, String localName)
    throws XMLStreamException
  {
    flushPending();

    try {
      QName name = popContext();

      if ((localName != null && !localName.equals(name.getLocalPart()))
          || (namespaceURI != null && !namespaceURI.equals(name.getNamespaceURI())))
        throw new XMLStreamException(L.l("unbalanced close, expecting `{0}' not `{1}'",
                                         name, new QName(namespaceURI, localName)));

      _out.print("</");
      _out.print(printQName(name));
      _out.print(">");

      if (_indent >= 0) {
        _out.println();
        _currentIndent -= _indent;
      }
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  private static String printQName(QName name) {

    if (name.getPrefix() == null || name.getPrefix().equals(""))
      return name.getLocalPart();

    return name.getPrefix() + ":" + name.getLocalPart();
  }

  public void writeEntityRef(String name)
    throws XMLStreamException
  {
    flushPending();
    try {
      _out.print("&");
      _out.print(name);
      _out.print(";");
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeNamespace(String prefix, String namespaceURI)
    throws XMLStreamException
  {
    if (_pendingTagName == null)
      throw new XMLStreamException("Namespace written before element");

    if (prefix == null || "".equals(prefix) || "xmlns".equals(prefix))
      writeDefaultNamespace(namespaceURI);
    else
      _tracker.declare(prefix, namespaceURI, true);
  }

  public void writeProcessingInstruction(String target)
    throws XMLStreamException
  {
    flushPending();
    try {
      _out.print("<?");
      _out.print(target);
      _out.print("?>");
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeProcessingInstruction(String target, String data)
    throws XMLStreamException
  {
    flushPending();
    try {
      _out.print("<?");
      _out.print(target);
      _out.print(" ");
      _out.print(data);
      _out.print("?>");
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeStartDocument()
    throws XMLStreamException
  {
    writeStartDocument("1.0");
  }

  public void writeStartDocument(String version)
    throws XMLStreamException
  {
    writeStartDocument("utf-8", version);
  }

  public void writeStartDocument(String encoding, String version)
    throws XMLStreamException
  {
    try {
      _out.print("<?xml version=\""+version+"\" encoding=\""+encoding+"\"?>");
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeStartElement(String localName)
    throws XMLStreamException
  {
    flushPending();
    try {
      QName qname = new QName(localName);
      pushContext(qname);
      _pendingTagName = qname;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeStartElement(String namespaceURI, String localName)
    throws XMLStreamException
  {
    flushPending();
    try {
      QName qname = null;

      if (_repair) {
        // NOTE: We have to push before we declare because declare will
        // declare the namespace in the parent context if we don't
        flushContext();
        _tracker.push();

        String prefix = _tracker.declare(namespaceURI);

        if (prefix == null)
          qname = new QName(namespaceURI, localName);
        else
          qname = new QName(namespaceURI, localName, prefix);

        _tracker.setElementName(qname);
        _flushed = false;
      }
      else {
        String prefix = _tracker.getPrefix(namespaceURI);

        if (prefix == null)
          throw new XMLStreamException(L.l("No prefix defined for namespace {0}", namespaceURI));

        qname = new QName(namespaceURI, localName, prefix);
        pushContext(qname);
      }

      _pendingTagName = qname;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  public void writeStartElement(String prefix, String localName,
                                String namespaceURI)
    throws XMLStreamException
  {
    flushPending();
    try {
      QName qname = new QName(namespaceURI, localName, prefix);

      if (_repair && _tracker.getPrefix(namespaceURI) == null) {
        // NOTE: We have to push before we declare because declare will
        // declare the namespace in the parent context if we don't
        flushContext();
        _tracker.push();

        _tracker.declare(prefix, namespaceURI, true);

        _tracker.setElementName(qname);
        _flushed = false;
      }
      else
        pushContext(qname);

      _pendingTagName = qname;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }

  /////////////////////////////////////////////////////////////////////////

  private void pushContext(QName elementName)
    throws IOException
  {
    flushContext();
    _tracker.push();
    _tracker.setElementName(elementName);
    _flushed = false;
  }

  private QName popContext()
    throws IOException, XMLStreamException
  {
    flushContext();
    QName name = _tracker.getElementName();
    _tracker.pop();
    return name;
  }

  private void flushContext()
    throws IOException
  {
    if (_flushed)
      return;
    
    _tracker.emitDeclarations(_out);
    _flushed = true;
  }

  private void flushPending()
    throws XMLStreamException
  {
    try {
      if (_pendingTagName == null)
	return;

      _out.print("<");
      _out.print(printQName(_pendingTagName));
      
      for(int i = 0; i < _pendingAttributeNames.size(); i++) {
        _out.print(" ");
        _out.print(printQName(_pendingAttributeNames.get(i)));
        _out.print("=\"");
        Escapifier.escape(_pendingAttributeValues.get(i), _out);
        _out.print('"');
      }
      flushContext();

      if (_shortTag) {
        _out.print("/>");
        popContext();
      } else {
        _out.print(">");

        if (_indent > -1)
          _currentIndent += _indent;
      }
      
      _pendingTagName = null;
      _pendingAttributeNames.clear();
      _pendingAttributeValues.clear();
      _shortTag = false;
    }
    catch (IOException e) {
      throw new XMLStreamException(e);
    }
  }
}