@Override
  public void write(NutchDocument doc) throws IOException {
    final SolrInputDocument inputDoc = new SolrInputDocument();
    for (final Entry<String, List<String>> e : doc) {
      for (final String val : e.getValue()) {

        Object val2 = val;
        if (e.getKey().equals("content") || e.getKey().equals("title")) {
          val2 = SolrUtils.stripNonCharCodepoints(val);
        }

        inputDoc.addField(solrMapping.mapKey(e.getKey()), val2);
        String sCopy = solrMapping.mapCopyKey(e.getKey());
        if (sCopy != e.getKey()) {
          inputDoc.addField(sCopy, val2);
        }
      }
    }
    inputDoc.setDocumentBoost(doc.getScore());
    inputDocs.add(inputDoc);
    if (inputDocs.size() >= commitSize) {
      try {
        LOG.info("Adding " + Integer.toString(inputDocs.size()) + " documents");
        solr.add(inputDocs);
      } catch (final SolrServerException e) {
        throw new IOException(e);
      }
      inputDocs.clear();
    }
  }
 @Override
 public void open(TaskAttemptContext job) throws IOException {
   Configuration conf = job.getConfiguration();
   solr = SolrUtils.getCommonsHttpSolrServer(conf);
   commitSize = conf.getInt(SolrConstants.COMMIT_SIZE, 1000);
   solrMapping = SolrMappingReader.getInstance(conf);
 }