static public void configureCfRenaming(Configuration conf, Map<String, String> renameMap) {
    StringBuilder sb = new StringBuilder();
    for (Map.Entry<String, String> entry : renameMap.entrySet()) {
      String sourceCf = entry.getKey();
      String destCf = entry.getValue();

      if (
        sourceCf.contains(":") || sourceCf.contains(",") || destCf.contains(":")
          || destCf.contains(",")
      ) {
        throw new IllegalArgumentException(
          "Illegal character in CF names: " + sourceCf + ", " + destCf);
      }

      if (sb.length() != 0) {
        sb.append(",");
      }
      sb.append(sourceCf + ":" + destCf);
    }
    conf.set(CF_RENAME_PROP, sb.toString());
  }
<p>
Sets a configuration property with key {@link #CF_RENAME_PROP} in conf that tells the mapper
how to rename column families.
<p>
Alternately, instead of calling this function, you could set the configuration key
{@link #CF_RENAME_PROP} yourself. The value should look like

<pre>
srcCf1:destCf1,srcCf2:destCf2,....
</pre>

. This would have the same effect on the mapper behavior.
@param conf      the Configuration in which the {@link #CF_RENAME_PROP} key will be set
@param renameMap a mapping from source CF names to destination CF names
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/Import.java