org.apache.parquet.format.CliUtils Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.parquet.format;
import java.io.IOException;
import org.apache.thrift.TBase;
import org.apache.thrift.TException;
import org.apache.thrift.TSerializer;
import org.apache.thrift.protocol.TSimpleJSONProtocol;
/**
* Utility class for parquet-cli. This is required because this module shades thriftlib which means we cannot use Thrift
* classes outside of this module without adding thriftlib as a separate dependency.
*/
public class CliUtils {
/**
* Returns the json representation of the specified Thrift object
*
* @param tbase the thrift object to be serialized as a json
* @return the json representation of the Thrift object as a String
* @throws IOException if any Thrift error occurs during the serialization
*/
public static String toJson(TBase tbase) throws IOException {
try {
TSerializer serializer = new TSerializer(new TSimpleJSONProtocol.Factory());
return serializer.toString(tbase);
} catch (TException e) {
// Wrapping the exception the not to expose the shaded Thrift class TException
throw new IOException(e);
}
}
private CliUtils() {
// private constructor to avoid instantiation
}
}