parquet-thrift/src/main/java/org/apache/parquet/hadoop/thrift/ParquetThriftInputFormat.java
public static <T> void setThriftClass(JobConf conf, Class<T> klass) {
    conf.set(ThriftReadSupport.THRIFT_READ_CLASS_KEY, klass.getName());
  }
public static <T> void setThriftClass(JobConf conf, Class<T> klass) {
    conf.set(ThriftReadSupport.THRIFT_READ_CLASS_KEY, klass.getName());
  }
Call this method when setting up your Hadoop job if reading into a Thrift object
that is not encoded into the parquet-serialized thrift metadata (for example,
writing with Apache Thrift, but reading back into Twitter Scrooge version of
the same thrift definition, or a different but compatible Apache Thrift class).
@param conf a mapred jobconf
@param klass a thrift class
@param <T> the Java type of records the configured ReadSupport will produce