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  /*
   * $Id: DOMSource.java,v 1.5 2010-11-01 04:36:12 joehw Exp $
   * %W% %E%
   */
  package mf.javax.xml.transform.dom;
  
  import mf.javax.xml.transform.Source;
  import mf.org.w3c.dom.Node;
  
  /**
   * <p>Acts as a holder for a transformation Source tree in the
   * form of a Document Object Model (DOM) tree.</p>
   * <p/>
   * <p>Note that XSLT requires namespace support. Attempting to transform a DOM
   * that was not contructed with a namespace-aware parser may result in errors.
   * Parsers can be made namespace aware by calling
   * {@link javax.xml.parsers.DocumentBuilderFactory#setNamespaceAware(boolean awareness)}.</p>
   *
   * @author <a href="Jeff.Suttor@Sun.com">Jeff Suttor</a>
   * @version $Revision: 1.5 $, $Date: 2010-11-01 04:36:12 $
   * @see <a href="http://www.w3.org/TR/DOM-Level-2">Document Object Model (DOM) Level 2 Specification</a>
   */
  public class DOMSource implements Source {
  
      /**
       * If {@link javax.xml.transform.TransformerFactory#getFeature}
       * returns true when passed this value as an argument,
       * the Transformer supports Source input of this type.
       */
      public static final String FEATURE =
              "http://javax.xml.transform.dom.DOMSource/feature";
      /**
       * <p><code>Node</code> to serve as DOM source.</p>
       */
      private Node node;
      /**
       * <p>The base ID (URL or system ID) from where URLs
       * will be resolved.</p>
       */
      private String systemID;
  
      /**
       * <p>Zero-argument default constructor.  If this constructor is used, and
       * no DOM source is set using {@link #setNode(Node node)} , then the
       * <code>Transformer</code> will
       * create an empty source {@link org.w3c.dom.Document} using
       * {@link javax.xml.parsers.DocumentBuilder#newDocument()}.</p>
       *
       * @see javax.xml.transform.Transformer#transform(Source xmlSource, Result outputTarget)
       */
      public DOMSource() {
      }
  
      /**
       * Create a new input source with a DOM node.  The operation
       * will be applied to the subtree rooted at this node.  In XSLT,
       * a "/" pattern still means the root of the tree (not the subtree),
       * and the evaluation of global variables and parameters is done
       * from the root node also.
       *
       * @param n The DOM node that will contain the Source tree.
       */
      public DOMSource(Node n) {
          setNode(n);
      }
  
      /**
       * Create a new input source with a DOM node, and with the
       * system ID also passed in as the base URI.
       *
       * @param node     The DOM node that will contain the Source tree.
       * @param systemID Specifies the base URI associated with node.
       */
      public DOMSource(Node node, String systemID) {
          setNode(node);
          setSystemId(systemID);
      }
  
      /**
       * Get the node that represents a Source DOM tree.
       *
       * @return The node that is to be transformed.
       */
      public Node getNode() {
          return node;
      }
  
      /**
       * Set the node that will represents a Source DOM tree.
       *
       * @param node The node that is to be transformed.
       */
      public void setNode(Node node) {
          this.node = node;
      }
  
      /**
       * Get the base ID (URL or system ID) from where URLs
       * will be resolved.
       *
       * @return Base URL for this DOM tree.
       */
      @Override
      public String getSystemId() {
          return this.systemID;
      }
  
      /**
       * Set the base ID (URL or system ID) from where URLs
       * will be resolved.
       *
       * @param systemID Base URL for this DOM tree.
       */
      @Override
      public void setSystemId(String systemID) {
          this.systemID = systemID;
      }
  }
  