1. /*
  2. * Copyright 1999-2004 The Apache Software Foundation.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. /*
  17. * $Id: FuncDoclocation.java,v 1.8 2004/02/17 04:34:01 minchau Exp $
  18. */
  19. package com.sun.org.apache.xpath.internal.functions;
  20. import com.sun.org.apache.xml.internal.dtm.DTM;
  21. import com.sun.org.apache.xpath.internal.XPathContext;
  22. import com.sun.org.apache.xpath.internal.objects.XObject;
  23. import com.sun.org.apache.xpath.internal.objects.XString;
  24. /**
  25. * Execute the proprietary document-location() function, which returns
  26. * a node set of documents.
  27. * @xsl.usage advanced
  28. */
  29. public class FuncDoclocation extends FunctionDef1Arg
  30. {
  31. /**
  32. * Execute the function. The function must return
  33. * a valid object.
  34. * @param xctxt The current execution context.
  35. * @return A valid XObject.
  36. *
  37. * @throws javax.xml.transform.TransformerException
  38. */
  39. public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
  40. {
  41. int whereNode = getArg0AsNode(xctxt);
  42. String fileLocation = null;
  43. if (DTM.NULL != whereNode)
  44. {
  45. DTM dtm = xctxt.getDTM(whereNode);
  46. // %REVIEW%
  47. if (DTM.DOCUMENT_FRAGMENT_NODE == dtm.getNodeType(whereNode))
  48. {
  49. whereNode = dtm.getFirstChild(whereNode);
  50. }
  51. if (DTM.NULL != whereNode)
  52. {
  53. fileLocation = dtm.getDocumentBaseURI();
  54. // int owner = dtm.getDocument();
  55. // fileLocation = xctxt.getSourceTreeManager().findURIFromDoc(owner);
  56. }
  57. }
  58. return new XString((null != fileLocation) ? fileLocation : "");
  59. }
  60. }