/*
* 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 parquet.format;
import static java.util.Arrays.asList;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNull;
import static parquet.format.Util.readFileMetaData;
import static parquet.format.Util.writeFileMetaData;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import org.junit.Test;
import parquet.format.Util.DefaultFileMetaDataConsumer;
public class TestUtil {
@Test
public void testReadFileMetadata() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
FileMetaData md = new FileMetaData(
1,
asList(new SchemaElement("foo")),
10,
asList(
new RowGroup(
asList(
new ColumnChunk(0),
new ColumnChunk(1)
),
10,
5),
new RowGroup(
asList(
new ColumnChunk(2),
new ColumnChunk(3)
),
11,
5)
)
);
writeFileMetaData(md , baos);
FileMetaData md2 = readFileMetaData(in(baos));
FileMetaData md3 = new FileMetaData();
readFileMetaData(in(baos), new DefaultFileMetaDataConsumer(md3));
FileMetaData md4 = new FileMetaData();
readFileMetaData(in(baos), new DefaultFileMetaDataConsumer(md4), true);
FileMetaData md5 = readFileMetaData(in(baos), true);
FileMetaData md6 = readFileMetaData(in(baos), false);
assertEquals(md, md2);
assertEquals(md, md3);
assertNull(md4.getRow_groups());
assertNull(md5.getRow_groups());
assertEquals(md4, md5);
md4.setRow_groups(md.getRow_groups());
md5.setRow_groups(md.getRow_groups());
assertEquals(md, md4);
assertEquals(md, md5);
assertEquals(md4, md5);
assertEquals(md, md6);
}
private ByteArrayInputStream in(ByteArrayOutputStream baos) {
return new ByteArrayInputStream(baos.toByteArray());
}
}