parquet.hadoop.thrift.ParquetThriftInputFormat Maven / Gradle / Ivy

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/**
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package parquet.hadoop.thrift;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapred.JobConf;

import parquet.hadoop.ParquetInputFormat;

public class ParquetThriftInputFormat extends ParquetInputFormat {

  @SuppressWarnings("unchecked")
  public ParquetThriftInputFormat() {
    super(ThriftReadSupport.class);
  }

  /**
   * 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
   * @param klass
   */
  public static  void setThriftClass(JobConf conf, Class 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
   * @param klass
   */
  public static   void setThriftClass(Configuration conf, Class klass) {
    conf.set(ThriftReadSupport.THRIFT_READ_CLASS_KEY, klass.getName());
  }
}