provide name to id mapping in spectralkmeansDriver.java example

[Miteshkumar Patel <mi...@yahoo-inc.com.INVALID>]

Hi All,
I'm new to Mahout. I'm using the SpectralKMeansDriver.java example provided in the Mahout library. The code works fine. 
After code execution I want to find which IDs belong to which clusters. 
I'm using the 'mahout clusterdump' command to dump the clusters and it dumps the centroid, radius and points. but I can't find which ID belongs to which cluster information.
I found the below snipnet in the code example 'SpectralKMeansDriver.java',  which I presume is looking for the input mapping file but how do can I provide this from the command line.    // Restore name to id mapping and read through the cluster assignments    Path mappingPath = new Path(new Path(conf.get("hadoop.tmp.dir")), "generic_input_mapping");    List<String> mapping = new ArrayList<>();    FileSystem fs = FileSystem.get(mappingPath.toUri(), conf);    if (fs.exists(mappingPath)) {      SequenceFile.Reader reader = new SequenceFile.Reader(fs, mappingPath, conf);      Text mappingValue = new Text();      IntWritable mappingIndex = new IntWritable();      while (reader.next(mappingIndex, mappingValue)) {        String s = mappingValue.toString();        mapping.add(s);      }      HadoopUtil.delete(conf, mappingPath);    } else {      log.warn("generic input mapping file not found!");    }
Would appreciate any pointers.
Regards,Mitesh