Parse XML Sequentially

[whitesox99]

Hi,

Need some help in parsing the following xml. I am trying build an hierarchical menu from the xml. Thr hierarchy can go to x-level deep.

<?xml version="1.0" encoding="windows-1252" ?>
<Menus>
  <Menu>
    <MenuID>1</MenuID>
    <MenuName>File</MenuName>
    <ParentID/>
    <NumChild>3</NumChild>
    <Menu>
      <MenuID>12</MenuID>
      <MenuName>Open</MenuName>
      <ParentID>1</ParentID>
      <NumChild>0</NumChild>
    </Menu>
    <Menu>
      <MenuID>11</MenuID>
      <MenuName>New</MenuName>
      <ParentID>1</ParentID>
      <NumChild>2</NumChild>
      <Menu>
        <MenuID>21</MenuID>
        <MenuName>Program</MenuName>
        <ParentID>11</ParentID>
        <NumChild>1</NumChild>
        <Menu>
          <MenuID>31</MenuID>
          <MenuName>Blank</MenuName>
          <ParentID>21</ParentID>
          <NumChild>0</NumChild>
        </Menu>
      </Menu>
      <Menu>
        <MenuID>61</MenuID>
        <MenuName>Program2</MenuName>
        <ParentID>11</ParentID>
        <NumChild>0</NumChild>
      </Menu>
    </Menu>
    <Menu>
      <MenuID>5</MenuID>
      <MenuName>Win</MenuName>
      <ParentID>1</ParentID>
      <NumChild>0</NumChild>
    </Menu>
  </Menu>
  <Menu>
    <MenuID>2</MenuID>
    <MenuName>View</MenuName>
    <ParentID/>
    <NumChild>1</NumChild>
    <Menu>
      <MenuID>22</MenuID>
      <MenuName>Printer</MenuName>
      <ParentID>2</ParentID>
      <NumChild>0</NumChild>
    </Menu>
  </Menu>
  <Menu>
    <MenuID>3</MenuID>
    <MenuName>Doc</MenuName>
    <ParentID/>
    <NumChild>0</NumChild>
  </Menu>
  <Menu>
    <MenuID>4</MenuID>
    <MenuName>Tools</MenuName>
    <ParentID/>
    <NumChild>0</NumChild>
  </Menu>
</Menus>

Any help is appreciated.

Thanks

 

[stefanwagner]

What do you have so far?

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http://home.arcor.de/hirnstrom/bewerbung

 

[whitesox99]

Here is the sample out I am looking for:

<ul id="pcTLMgeneral" class="pcTLMenu">
     <li class="TLMopen">
      <a title="Design and development tools">Menu 1</a>
      <ul> 
       <li class="doc">       
       <a href="javascript:showData('<%=urlLink%>Sub Menu 1.1');">Sub Menu 1.1</a>
       </li>
      </ul>
     </li>
     <li class="TLMopen">
      <a title="On this site">Menu 2</a>
      <ul>
       <li class="doc">
        <a href="javascript:showData('<%=urlLink%>Sub Menu 2.1');">Sub Menu 2.1</a>
       </li>
       <li class="doc">
        <a href="javascript:showData('<%=urlLink%>Sub Menu 2.2');">Sub Menu 2.2</a>
       </li>
      </ul>
     </li>
     <li class="TLMopen">
      <a>Menu 4</a>
      <ul>
       <li class="TLMopen">
        <a>Sub Menu 4.1</a>
        <ul>
         <li class="doc">
          <a href="javascript:showData('<%=urlLink%>Sub Menu 4.1.1');">Sub Menu 4.1.1</a>
         </li>         
        </ul>
       </li>
      </ul>
     </li>
     <li class="TLMopen">
      <a title="Our opinions - mostly to do with information technology">Menu 5</a>
      <ul>
       <li class="doc">
        <a href="javascript:showData('<%=urlLink%>Sub Menu 5.1');">Sub Menu 5.1</a>
       </li>       
      </ul>
     </li>
     <li class="doc">
      <a href="javascript:showData('<%=urlLink%>Menu 6');">Menu 6</a>
     </li>
    </ul>

Here is the code so far I have but no luck:

    private void processElement(PrintWriter out, Element elem, 
                                int indent) // not used in this version
        throws Exception
    {
        NodeList children = elem.getChildNodes() ;
        for (int ii = 0 ; ii < children.getLength() ; ii++)
        {
            Node child = children.item(ii) ;
            if (child instanceof Element)
            {
                if ((child.getNodeType() == Node.ELEMENT_NODE) && (((Element)child).getTagName().equals("Menu")))
                {
                    Node menuId = ((Element)child).getElementsByTagName("MenuID").item(0) ;
                    Node child1 = menuId.getChildNodes().item(0) ;

                    Node menuName = ((Element)child).getElementsByTagName("MenuName").item(0) ;
                    Node child2 = menuName.getChildNodes().item(0) ;

                    Node parentId = ((Element)child).getElementsByTagName("ParentID").item(0) ;
                    Node child3 = parentId.getChildNodes().item(0) ;

                    Node numChild = ((Element)child).getElementsByTagName("NumChild").item(0) ;
                    Node child4 = numChild.getChildNodes().item(0) ;

                    if (child3 == null && Integer.parseInt(child4.getNodeValue()) > 0)
                    {
                        menu += "<li class=\"TLMopen\"><a>" + child2.getNodeValue() + "</a>" ;
                    }

                    if (child3 == null && Integer.parseInt(child4.getNodeValue()) == 0)
                    {
                        menu += "<li class=\"doc\"><a href=\"javascript:showData('Menu 6');\">" + child2.getNodeValue() + "</a></li>" ;
                    }

                    if (child3 != null && Integer.parseInt(child4.getNodeValue()) == 0)
                    {
                        menu += "<ul><li class=\"doc\"><a href=\"javascript:showData('Sub Menu 1.1');\">" + child2.getNodeValue() + "</a></li></ul></li>" ;
                    }

                    if (child3 != null && Integer.parseInt(child4.getNodeValue()) > 0)
                    {
                        menu += "<li class=\"TLMopen\"><a>"+child2.getNodeValue()+"</a><ul>" ;
                    }
                }
                processElement(out, (Element)child, indent + 4) ;
            }
            else if (child instanceof Text)
            {
                ; //out.println("Text: " + child.getNodeValue()) ;
            }
        }

        out.flush() ;
    }

Thanks

 

[Diancecht]

So what kind problems are you facing? Parsing problems? Value problems? Exceptions?

Cheers,
Dian

 

[whitesox99]

Hi,

The final output is not coming correctly as am not able to keep track of the hierarchy of menus. As <Menu> may contain multiple <Menu> tags i.e. hierarchy. So am facing problem on final output not coming up right. As in the above sample xml I need the final output like follows:

File
    Open
    New
       Program
              Blank
       Program2
    Win
View
    Printer
Doc
Tools

As File contain multiple sub-menus that expand collapse etc. Any help is appreciated.

Thanks