org.pentaho.di.trans.steps.excelinput.poi.PoiCell.java Source code

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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed 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.pentaho.di.trans.steps.excelinput.poi;

import java.sql.Date;
import java.util.TimeZone;

import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.pentaho.di.core.spreadsheet.KCell;
import org.pentaho.di.core.spreadsheet.KCellType;

public class PoiCell implements KCell {

    private Cell cell;

    public PoiCell(Cell cell) {
        this.cell = cell;
    }

    public KCellType getType() {
        int type = cell.getCellType();
        if (type == Cell.CELL_TYPE_BOOLEAN) {
            return KCellType.BOOLEAN;
        } else if (type == Cell.CELL_TYPE_NUMERIC) {
            if (HSSFDateUtil.isCellDateFormatted(cell)) {
                return KCellType.DATE;
            } else {
                return KCellType.NUMBER;
            }
        } else if (type == Cell.CELL_TYPE_STRING) {
            return KCellType.LABEL;
        } else if (type == Cell.CELL_TYPE_BLANK || type == Cell.CELL_TYPE_ERROR) {
            return KCellType.EMPTY;
        } else if (type == Cell.CELL_TYPE_FORMULA) {
            switch (cell.getCachedFormulaResultType()) {
            case Cell.CELL_TYPE_BLANK:
            case Cell.CELL_TYPE_ERROR:
                return KCellType.EMPTY;
            case Cell.CELL_TYPE_BOOLEAN:
                return KCellType.BOOLEAN_FORMULA;
            case Cell.CELL_TYPE_STRING:
                return KCellType.STRING_FORMULA;
            case Cell.CELL_TYPE_NUMERIC:
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    return KCellType.DATE_FORMULA;
                } else {
                    return KCellType.NUMBER_FORMULA;
                }
            default:
                break;
            }
        }
        return null;
    }

    public Object getValue() {
        try {
            switch (getType()) {
            case BOOLEAN_FORMULA:
            case BOOLEAN:
                return Boolean.valueOf(cell.getBooleanCellValue());
            case DATE_FORMULA:
            case DATE:
                // Timezone conversion needed since POI doesn't support this apparently
                //
                long time = cell.getDateCellValue().getTime();
                long tzOffset = TimeZone.getDefault().getOffset(time);

                return new Date(time + tzOffset);
            case NUMBER_FORMULA:
            case NUMBER:
                return Double.valueOf(cell.getNumericCellValue());
            case STRING_FORMULA:
            case LABEL:
                return cell.getStringCellValue();
            case EMPTY:
            default:
                return null;
            }
        } catch (Exception e) {
            throw new RuntimeException(
                    "Unable to get value of cell (" + cell.getColumnIndex() + ", " + cell.getRowIndex() + ")", e);
        }
    }

    public String getContents() {
        try {
            Object value = getValue();
            if (value == null) {
                return null;
            }
            return value.toString();
        } catch (Exception e) {
            throw new RuntimeException("Unable to get string content of cell (" + cell.getColumnIndex() + ", "
                    + cell.getRowIndex() + ")", e);
        }
    }

    public int getRow() {
        Row row = cell.getRow();
        return row.getRowNum();
    }
}