Examples of org.jdom.JDOMException

org.jdom.JDOMException
The top level exception that JDOM classes can throw. Its subclasses add specificity to the problems that can occur using JDOM. This single exception can be caught to handle all JDOM specific problems (some methods may throw {@link java.io.IOException} and such). @version $Revision: 1.26 $, $Date: 2008/12/10 00:59:51 $ @author Brett McLaughlin @author Jason Hunter

    }
    else {
      xpath = followXPath(parent, target).toString();


      if (xpath == null) {
        throw new JDOMException("the target element is not a descendant of the parent element");
      }
    }
    
    return xpath;
  }

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      Element parent = findTarget(root, target);
      if (parent != null) {
        xpath = computeXPath(root, parent, target);
      }
      else {
        throw new JDOMException("the target object is not in the tree (" + target + ")");
      }
    }
    
    return xpath;
  }

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   */
  private static StringBuffer targetXPath(Element parent, Object child) throws JDOMException {
    StringBuffer xpath;
    
    if (parent == null || child == null) {
      throw new JDOMException("can't use null parent or child");
    }
    
    if (child instanceof Element) {
      xpath = new StringBuffer();
      xpath.append("/").append(((Element)child).getQualifiedName());

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  private static StringBuffer computeXPathToNode(Element root, Element node) throws JDOMException {
    StringBuffer xpath = new StringBuffer();
    Element n = node;
    
    if (root == null || node == null) {
      throw new JDOMException("can't use null root or node");
    }
    
    while (n != null) {
      Element p = null;
      if (n.getParent() != null && n.getParent() instanceof Element)

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        pathPartStart = pathPartEnd + 1;
        atRoot = false;
      }
    }
    else {
      throw new JDOMException("xpath is not absolute (must begin with '/')");
    }


    return rslt;
  }

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      Object x = getElement(root, parentXpath);
      if (x instanceof Element) {
        rslt = (Element)x;
      }
      else {
        throw new JDOMException("parent element should be type Element, not " + x.getClass().getName());
      }
    }
    
    return rslt;
  }

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      String numStr = pathPart.substring(lbracket+1, rbracket);
      try {
        rslt = Integer.parseInt(numStr);
      }
      catch (NumberFormatException e) {
        throw new JDOMException("invalid index in \"" + pathPart + "\"");
      }
    }
    else {
      throw new JDOMException("index must be the last part of \"" + pathPart + "\"");
    }


    return rslt - 1;
  }

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   */
  private static List<Element> getNamedChildren(Element parent, String name) throws JDOMException {
    List<Element> children = new ArrayList<Element>();
    
    if (parent == null) {
      throw new JDOMException("can't use null parent");
    }
    
    Iterator<?> it = parent.getChildren().iterator();
    while (it.hasNext()) {
      Object child = it.next();

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   */
  private static int computeTwinIndex(Element parent, Element child) throws JDOMException {
    int index = -1;


    if (parent == null) {
      throw new JDOMException("can't use null parent");
    }
    
    List<Element> identicalTwins = getNamedChildren(parent, child.getQualifiedName());


    if (identicalTwins.size() > 1) {
      for (int j = 0; index < 0 && j < identicalTwins.size(); ++j) {
        if (identicalTwins.get(j) == child) {
          // Add 1 to convert to 1-origin index used by
          // Xpath.


          index = j + 1;
        }
      }


      if (index < 0) {
        // ??? Something is wrong. We didn't find child
        // among its parent's children.


        throw new JDOMException("error in tree: node is not listed among its parent's children");
      }
    }
    
    return index;
  }

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    if (index < 0) {
      // ??? Something is wrong. We didn't find child
      // among its parent's children.


      throw new JDOMException("error in tree: object is not listed among its parent's children");
    }


    return index;
  }

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