Question

I have made a RSS reader and could use some help on small problem. When the rss XML is set up like this:

<link>http://www.grants.gov/search/search.do?mode=VIEW&amp;oppId=98616</link>

my reader can pull the link fine.

But some feed I am trying to read are set up like:

<link>
http://www.ornl.gov/info/ornlreview/v44_1_11/article06.shtml
</link>

which causes my reader to miss the link.

I have narrowed the problem down to:

    @Override
    public void characters(char[] ch, int start, int length)
        {
    // TODO Auto-generated method stub

    String strCharacters = new String(ch,start,length);
    if (itemFound==true){
    // "item" tag found, it's item's parameter
        switch(currentState){
        case state_title:
            item.setTitle(strCharacters);
            break;
        case state_description:
            item.setDescription(strCharacters);
            break;
        case state_link:
            item.setLink(strCharacters);
            break;
        case state_pubdate:
            item.setPubdate(strCharacters);
            break;  
        default:
            break;
        }
    }

The strCharacters pulls the string in the current row, but with the RSS with a space it just pulls whitespace. Any ideas on how to get it to skip the white space and pull the link on the next line?

Answer 1

Your parser looks weird, try doing this instead:

  private StringBuilder builder;   

  @Override
  public void startDocument() throws SAXException {
    super.startDocument();
    builder = new StringBuilder();
  }

  @Override
  public void characters(char[] ch, int start, int length) throws SAXException {
    super.characters(ch, start, length);
    builder.append(ch, start, length);
  }

  public void endElement(String uri, String localName, String name) throws SAXException {
    if (currentState == state_link) {
      item.setLink(builder.toString().trim());
    }
    builder.setLength(0);
  }

That way you wait until the content is completely consumed, instead of just reading one line of text.