Hi All,
Am trying with xml processing in hadoop,used the below code inside map
method. It results an empty file (not used reducer class).is there anything
 wrong ?

//code used inside map method
public void map(LongWritable key, Text value1,Context context)
throws IOException, InterruptedException {
        String xmlString = value1.toString();
SAXBuilder builder = new SAXBuilder();
Reader in = new StringReader(xmlString);
String value="";
try {
                        Document doc = builder.build(in);
Element rootNode = doc.getRootElement();
                        List<Element> list = rootNode.getChildren("staff");
            for (int i = 0; i < list.size(); i++) {
Element node = (Element) list.get(i);
              String tag1 = node.getChildText("firstname");
                                String tag2 = node.getChildText("lastname");
                         String tag3 = node.getChildText("nickname");
                   String tag4 = node.getChildText("salary");

value = tag1 + "," + tag2 + "," + tag3 + "," + tag4;
context.write(NullWritable.get(), new Text(value));
} followed by catch statements....................

//xml input file
<?xml version="1.0" encoding="UTF-8"?>
<lastname>mook kim</lastname>
<lastname>yin fong1</lastname>
<nickname>fong fong1</nickname>

Thanks for your help!