/* ====================================================================
 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.poi.examples.xssf.usermodel;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataConsolidateFunction;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.usermodel.XSSFPivotTable;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class CreatePivotTable {

    public static void main(String[] args) throws FileNotFoundException, IOException, InvalidFormatException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sheet = wb.createSheet();

            //Create some data to build the pivot table on
            setCellData(sheet);

            AreaReference source = new AreaReference("A1:D4", SpreadsheetVersion.EXCEL2007);
            CellReference position = new CellReference("H5");
            // Create a pivot table on this sheet, with H5 as the top-left cell..
            // The pivot table's data source is on the same sheet in A1:D4
            XSSFPivotTable pivotTable = sheet.createPivotTable(source, position);
            //Configure the pivot table
            //Use first column as row label
            pivotTable.addRowLabel(0);
            //Sum up the second column
            pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 1);
            //Set the third column as filter
            pivotTable.addColumnLabel(DataConsolidateFunction.AVERAGE, 2);
            //Add filter on forth column
            pivotTable.addReportFilter(3);

            try (FileOutputStream fileOut = new FileOutputStream("ooxml-pivottable.xlsx")) {
                wb.write(fileOut);
            }
        }
    }

    public static void setCellData(XSSFSheet sheet){
        Row row1 = sheet.createRow(0);
        // Create a cell and put a value in it.
        Cell cell11 = row1.createCell(0);
        cell11.setCellValue("Names");
        Cell cell12 = row1.createCell(1);
        cell12.setCellValue("#");
        Cell cell13 = row1.createCell(2);
        cell13.setCellValue("%");
        Cell cell14 = row1.createCell(3);
        cell14.setCellValue("Human");

        Row row2 = sheet.createRow(1);
        Cell cell21 = row2.createCell(0);
        cell21.setCellValue("Jane");
        Cell cell22 = row2.createCell(1);
        cell22.setCellValue(10);
        Cell cell23 = row2.createCell(2);
        cell23.setCellValue(100);
        Cell cell24 = row2.createCell(3);
        cell24.setCellValue("Yes");

        Row row3 = sheet.createRow(2);
        Cell cell31 = row3.createCell(0);
        cell31.setCellValue("Tarzan");
        Cell cell32 = row3.createCell(1);
        cell32.setCellValue(5);
        Cell cell33 = row3.createCell(2);
        cell33.setCellValue(90);
        Cell cell34 = row3.createCell(3);
        cell34.setCellValue("Yes");

        Row row4 = sheet.createRow(3);
        Cell cell41 = row4.createCell(0);
        cell41.setCellValue("Terk");
        Cell cell42 = row4.createCell(1);
        cell42.setCellValue(10);
        Cell cell43 = row4.createCell(2);
        cell43.setCellValue(90);
        Cell cell44 = row4.createCell(3);
        cell44.setCellValue("No");
    }
}