int getDoc()

in xalan/src/main/java/org/apache/xalan/templates/FuncDocument.java [226:375]
118 lines of code
24 McCabe index (conditional complexity)

  int getDoc(XPathContext xctxt, int context, String uri, String base)
          throws javax.xml.transform.TransformerException
  {

    // System.out.println("base: "+base+", uri: "+uri);
    SourceTreeManager treeMgr = xctxt.getSourceTreeManager();
    Source source;
   
    int newDoc;
    try
    {
      source = treeMgr.resolveURI(base, uri, xctxt.getSAXLocator());
      newDoc = treeMgr.getNode(source);
    }
    catch (IOException ioe)
    {
      throw new TransformerException(ioe.getMessage(), 
        (SourceLocator)xctxt.getSAXLocator(), ioe);
    }
    catch(TransformerException te)
    {
      throw new TransformerException(te);
    }

    if (DTM.NULL != newDoc)
      return newDoc;

    // If the uri length is zero, get the uri of the stylesheet.
    if (uri.length() == 0)
    {
      // Hmmm... this seems pretty bogus to me... -sb
      uri = xctxt.getNamespaceContext().getBaseIdentifier();
      try
      {
        source = treeMgr.resolveURI(base, uri, xctxt.getSAXLocator());
      }
      catch (IOException ioe)
      {
        throw new TransformerException(ioe.getMessage(), 
          (SourceLocator)xctxt.getSAXLocator(), ioe);
      }
    }

    String diagnosticsString = null;

    try
    {
      if ((null != uri) && (uri.length() > 0))
      {
        newDoc = treeMgr.getSourceTree(source, xctxt.getSAXLocator(), xctxt);

        // System.out.println("newDoc: "+((Document)newDoc).getDocumentElement().getNodeName());
      }
      else
        warn(xctxt, XSLTErrorResources.WG_CANNOT_MAKE_URL_FROM,
             new Object[]{ ((base == null) ? "" : base) + uri });  //"Can not make URL from: "+((base == null) ? "" : base )+uri);
    }
    catch (Throwable throwable)
    {

      // throwable.printStackTrace();
      newDoc = DTM.NULL;

      // path.warn(XSLTErrorResources.WG_ENCODING_NOT_SUPPORTED_USING_JAVA, new Object[]{((base == null) ? "" : base )+uri}); //"Can not load requested doc: "+((base == null) ? "" : base )+uri);
      while (throwable
             instanceof org.apache.xml.utils.WrappedRuntimeException)
      {
        throwable =
          ((org.apache.xml.utils.WrappedRuntimeException) throwable).getException();
      }

      if ((throwable instanceof NullPointerException)
              || (throwable instanceof ClassCastException))
      {
        throw new org.apache.xml.utils.WrappedRuntimeException(
          (Exception) throwable);
      }

      StringWriter sw = new StringWriter();
      PrintWriter diagnosticsWriter = new PrintWriter(sw);

      if (throwable instanceof TransformerException)
      {
        TransformerException spe = (TransformerException) throwable;

        {
          Throwable e = spe;

          while (null != e)
          {
            if (null != e.getMessage())
            {
              diagnosticsWriter.println(" (" + e.getClass().getName() + "): "
                                        + e.getMessage());
            }

            if (e instanceof TransformerException)
            {
              TransformerException spe2 = (TransformerException) e;

              SourceLocator locator = spe2.getLocator();
              if ((null != locator) && (null != locator.getSystemId()))
                diagnosticsWriter.println("   ID: " + locator.getSystemId()
                                          + " Line #" + locator.getLineNumber()
                                          + " Column #"
                                          + locator.getColumnNumber());

              e = spe2.getException();

              if (e instanceof org.apache.xml.utils.WrappedRuntimeException)
                e = ((org.apache.xml.utils.WrappedRuntimeException) e).getException();
            }
            else
              e = null;
          }
        }
      }
      else
      {
        diagnosticsWriter.println(" (" + throwable.getClass().getName()
                                  + "): " + throwable.getMessage());
      }

      diagnosticsString = throwable.getMessage(); //sw.toString();
    }

    if (DTM.NULL == newDoc)
    {

      // System.out.println("what?: "+base+", uri: "+uri);
      if (null != diagnosticsString)
      {
        warn(xctxt, XSLTErrorResources.WG_CANNOT_LOAD_REQUESTED_DOC,
             new Object[]{ diagnosticsString });  //"Can not load requested doc: "+((base == null) ? "" : base )+uri);
      }
      else
        warn(xctxt, XSLTErrorResources.WG_CANNOT_LOAD_REQUESTED_DOC,
             new Object[]{
               uri == null
               ? ((base == null) ? "" : base) + uri : uri.toString() });  //"Can not load requested doc: "+((base == null) ? "" : base )+uri);
    }
    else
    {
      // %REVIEW%
      // TBD: What to do about XLocator?
      // xctxt.getSourceTreeManager().associateXLocatorToNode(newDoc, url, null);
    }

    return newDoc;
  }