/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.ambari.view.hive20.resources.upload;
import org.apache.ambari.view.hive20.client.ColumnDescription;
import org.apache.ambari.view.hive20.client.ColumnDescriptionShort;
import org.apache.ambari.view.hive20.client.Row;
import org.apache.ambari.view.hive20.internal.dto.ColumnInfo;
import org.apache.ambari.view.hive20.resources.uploads.ColumnDescriptionImpl;
import org.apache.ambari.view.hive20.resources.uploads.parsers.DataParser;
import org.apache.ambari.view.hive20.resources.uploads.parsers.ParseOptions;
import org.apache.ambari.view.hive20.resources.uploads.parsers.PreviewData;
import org.junit.Assert;
import org.junit.Test;
import java.io.IOException;
import java.io.StringReader;
public class DataParserJSONTest {
@Test
public void testParsePreviewJSON() throws Exception {
String str = "[ {\"col1\" : \"a\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"4.4\" },"
+ "{\"col1\": \"b\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"5.4\" },"
+ "{\"col1\": \"c\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"6.4\" },"
+ "{\"col1\": \"d\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"7.4\" },"
+ "{\"col1\": \"e\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"8.4\" },"
+ "{\"col1\": \"f\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"9.4\" },"
+ "{\"col1\": \"g\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"10.4\" },"
+ "{\"col1\": \"h\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"11.4\" },"
+ "{\"col1\": \"i\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"4\" },"
+ "{\"col1\": \"j\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"5\" },"
+ "{\"col1\": \"k\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"6\" },"
+ "{\"col1\": \"l\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"7\" },"
+ "{\"col1\": \"m\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"24.4\" },"
+ "{\"col1\": \"n\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"14.4\" },"
+ "{\"col1\": \"o\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"34.4\" },"
+ "{\"col1\": \"p\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"44.4\" },"
+ "{\"col1\": \"q\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"54.4\" },"
+ "{\"col1\": \"r\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"64.4\" }"
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
parseOptions.setOption(ParseOptions.OPTIONS_HEADER, ParseOptions.HEADER.EMBEDDED.toString());
parseOptions.setOption(ParseOptions.OPTIONS_NUMBER_OF_PREVIEW_ROWS, 7);
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions)
) {
PreviewData pd = dp.parsePreview();
Assert.assertNotNull(pd.getPreviewRows());
Assert.assertNotNull(pd.getHeader());
Assert.assertEquals(7, pd.getPreviewRows().size()); // header row + preview rows
Assert.assertEquals(14, pd.getHeader().size());
ColumnInfo[] cd = {new ColumnInfo("col1", ColumnDescriptionShort.DataTypes.CHAR.toString()),
new ColumnInfo("col2", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col3", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col4", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col5", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col6", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col7", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col8", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col9", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col10", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col11", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col12", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col13", ColumnDescriptionShort.DataTypes.STRING.toString()),
new ColumnInfo("col14", ColumnDescriptionShort.DataTypes.DOUBLE.toString())};
Row row2 = new Row(new Object[]{"a", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "4.4"});
Row row3 = new Row(new Object[]{"b", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "5.4"});
Row row4 = new Row(new Object[]{"c", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "6.4"});
Row row5 = new Row(new Object[]{"d", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "7.4"});
Row row6 = new Row(new Object[]{"e", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "8.4"});
Row row7 = new Row(new Object[]{"f", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "9.4"});
Row row8 = new Row(new Object[]{"g", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "10.4"});
Row[] rows = { row2, row3, row4, row5, row6, row7, row8};
Assert.assertArrayEquals("Header Not Correct.", cd, pd.getHeader().toArray());
Assert.assertArrayEquals("Rows Not Correct.", rows, pd.getPreviewRows().toArray());
}
}
/**
* additional columns in rows of JSON are ignored.
*
* @throws IOException
*/
@Test
public void testParsePreviewCSVMoreColumns() throws Exception {
String str = "[ {\"col1\" : \"a\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"4.4\" },"
+ "{\"col1\": \"b\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" , \"col14\" : \"43.4\" ,\"col15\" : \"asafsfa\" },"
+ "{\"col1\": \"c\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"6.4\" },"
+ "{\"col1\": \"d\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"7.4\" }"
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions)
) {
PreviewData pd = dp.parsePreview();
Row row2 = new Row(new Object[]{"b", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "abcd", "43.4"});
Assert.assertArrayEquals("More number of columns do not give correct result.", row2.getRow(), pd.getPreviewRows().get(1).getRow());
}
}
/**
* less columns in json makes them null.
*
* @throws IOException
*/
@Test
public void testParsePreviewCSVLessColumns() throws Exception {
String str = "[ " +
"{\"col1\" : \"a\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"4.4\" },"
+ "{\"col1\": \"b\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" },"
+ "{\"col1\": \"c\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"6.4\" },"
+ "{\"col1\": \"d\", \n\"col2\": \"abcd\" ,\"col3\": \"abcd\" ,\"col4\": \"abcd\" ,\"col5\": \"abcd\" ,\"col6\": \"abcd\" ,\"col7\": \"abcd\" ,\"col8\": \"abcd\" ,\"col9\": \"abcd\" ,\"col10\": \"abcd\" ,\"col11\": \"abcd\" ,\"col12\" : \"abcd\" ,\"col13\" : \"abcd\" ,\"col14\" : \"7.4\" }"
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
parseOptions.setOption(ParseOptions.OPTIONS_HEADER, ParseOptions.HEADER.EMBEDDED.toString());
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions)
) {
PreviewData pd = dp.parsePreview();
Assert.assertNull(pd.getPreviewRows().get(1).getRow()[13]);
}
}
/**
* illegal json format gives error
*
* @throws IOException
*/
@Test(expected = IllegalArgumentException.class)
public void testWrongJsonFormat() throws Exception {
String str = "[ " +
"{\"col1\" : \"a\", \n\"col2\": \"abcd\" },"
+ "{\"col1\": \"b\", \n\"col2\": \"abcd\" },"
+ "{\"col1\": \"c\", \n\"col2\": \"abcd\" },"
+ "{\"col1\": \"d\",, \n\"col2\": \"abcd\" }" // extra comma in this line
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
parseOptions.setOption(ParseOptions.OPTIONS_HEADER, ParseOptions.HEADER.EMBEDDED.toString());
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions);
) {
PreviewData pd = dp.parsePreview();
}
}
/**
* One row JSON will give embedde column names and 1st row in preview if HEADER.EMBEDDED is selected
* @throws IOException
*/
@Test
public void testParsePreview1RowJSON() throws Exception {
String str = "[ "
+ "{\"col1\": \"d\", \n\"col2\": \"abcd\" }" // extra comma in this line
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
parseOptions.setOption(ParseOptions.OPTIONS_HEADER, ParseOptions.HEADER.EMBEDDED.toString());
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions);
) {
PreviewData pd = dp.parsePreview();
Assert.assertNotNull(pd.getPreviewRows());
Assert.assertNotNull(pd.getHeader());
Assert.assertEquals(1, pd.getPreviewRows().size());
Assert.assertEquals(2, pd.getHeader().size());
ColumnInfo[] cd = {new ColumnInfo("col1", ColumnDescriptionShort.DataTypes.CHAR.toString()),
new ColumnInfo("col2", ColumnDescriptionShort.DataTypes.STRING.toString())};
Object cols1[] = new Object[2];
cols1[0] = "d";
cols1[1] = "abcd";
Row row1 = new Row(cols1);
Row[] rows = {row1};
Assert.assertArrayEquals("Header Not Correct.", cd, pd.getHeader().toArray());
Assert.assertArrayEquals("Rows Not Correct.", rows, pd.getPreviewRows().toArray());
}
}
/**
* One row JSON will give default column names and 1st row in preview if HEADER.PROVIDED_BY_USER is selected
* @throws IOException
*/
@Test
public void testParsePreview1RowJSONHeaderProvided() throws Exception {
String str = "[ "
+ "{\"col1\": \"d\", \n\"col2\": \"abcd\" }" // extra comma in this line
+ "]";
ParseOptions parseOptions = new ParseOptions();
parseOptions.setOption(ParseOptions.OPTIONS_FILE_TYPE, ParseOptions.InputFileType.JSON.toString());
parseOptions.setOption(ParseOptions.OPTIONS_HEADER, ParseOptions.HEADER.PROVIDED_BY_USER.toString());
try(
StringReader sr = new StringReader(str);
DataParser dp = new DataParser(sr, parseOptions);
) {
PreviewData pd = dp.parsePreview();
Assert.assertNotNull(pd.getPreviewRows());
Assert.assertNotNull(pd.getHeader());
Assert.assertEquals(1, pd.getPreviewRows().size());
Assert.assertEquals(2, pd.getHeader().size());
ColumnInfo[] cd = {new ColumnInfo("column1", ColumnDescriptionShort.DataTypes.CHAR.toString()),
new ColumnInfo("column2", ColumnDescriptionShort.DataTypes.STRING.toString())};
Object cols1[] = new Object[2];
cols1[0] = "d";
cols1[1] = "abcd";
Row row1 = new Row(cols1);
Row[] rows = {row1};
Assert.assertArrayEquals("Header Not Correct.", cd, pd.getHeader().toArray());
Assert.assertArrayEquals("Rows Not Correct.", rows, pd.getPreviewRows().toArray());
}
}
}