Parameters.java 文件源码

@Override
public String toString() {
  Configuration conf = new Configuration();
  conf.set("io.serializations",
           "org.apache.hadoop.io.serializer.JavaSerialization,"
           + "org.apache.hadoop.io.serializer.WritableSerialization");
  DefaultStringifier<Map<String,String>> mapStringifier = new DefaultStringifier<Map<String,String>>(conf,
      GenericsUtil.getClass(params));
  try {
    return mapStringifier.toString(params);
  } catch (IOException e) {
    log.info("Encountered IOException while deserializing returning empty string", e);
    return "";
  }

}