/**
* 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.drill;
import org.apache.parquet.schema.GroupType;
import org.apache.parquet.schema.MessageType;
import org.apache.parquet.schema.PrimitiveType;
import org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName;
import org.apache.parquet.schema.Type.Repetition;
public class ParquetSchemaMerge {
public static void main(String[] args) {
MessageType message1;
MessageType message2;
PrimitiveType c = new PrimitiveType(Repetition.OPTIONAL, PrimitiveTypeName.INT32, "c");
GroupType b = new GroupType(Repetition.REQUIRED, "b");
GroupType a = new GroupType(Repetition.OPTIONAL, "a", b);
message1 = new MessageType("root", a);
PrimitiveType c2 = new PrimitiveType(Repetition.OPTIONAL, PrimitiveTypeName.INT32, "d");
GroupType b2 = new GroupType(Repetition.OPTIONAL, "b", c2);
GroupType a2 = new GroupType(Repetition.OPTIONAL, "a", b2);
message2 = new MessageType("root", a2);
MessageType message3 = message1.union(message2);
StringBuilder builder = new StringBuilder();
message3.writeToStringBuilder(builder, "");
System.out.println(builder);
}
}