fixed error returning HDFS instead of local path

use_distributed_cache_in_cascading.java

// sticking it in as part of the hadoop job
      FileSystem fs = FileSystem.get(jobConf);
      fs.mkdirs(new Path("/discovery/UrlDb"));
      fs.copyFromLocalFile(new Path(args[3] + "/gsb.blacklist"), new Path("/discovery/UrlDb"));
      fs.copyFromLocalFile(new Path(args[3] + "/gsb.malwarelist"), new Path("/discovery/UrlDb"));
      
      DistributedCache.addCacheFile(new URI("/discovery/UrlDb/gsb.blacklist"), jobConf);
      DistributedCache.addCacheFile(new URI("/discovery/UrlDb/gsb.malwarelist"), jobConf);


// to use it in a cascading function
   public void prepare(FlowProcess flowProcess, OperationCall operationCall) {
      HadoopFlowProcess hfp = (HadoopFlowProcess) flowProcess;
                for (Path fn : DistributedCache.getLocalCacheFiles(hfp.getJobConf())) {
                   LOG.info("Loading cached file: " + fn);
                   File file = new File(fn.toString());
                 }