org.pentaho.di.trans.steps.excelinput.poisax.SaxPoiSheet.java Source code

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/*******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2012 by Pentaho : 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.
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package org.pentaho.di.trans.steps.excelinput.poisax;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.pentaho.di.core.spreadsheet.KCell;
import org.pentaho.di.core.spreadsheet.KSheet;

public class SaxPoiSheet implements KSheet {
    private Sheet sheet;

    public SaxPoiSheet(Sheet sheet) {
        this.sheet = sheet;
    }

    public String getName() {
        return sheet.getSheetName();
    }

    public KCell[] getRow(int rownr) {
        if (rownr < sheet.getFirstRowNum()) {
            return new KCell[] {};
        } else if (rownr > sheet.getLastRowNum()) {
            throw new ArrayIndexOutOfBoundsException("Read beyond last row: " + rownr);
        }
        Row row = sheet.getRow(rownr);
        if (row == null) { // read an empty row
            return new KCell[] {};
        }
        int cols = row.getLastCellNum();
        if (cols < 0) { // this happens if a row has no cells, POI returns -1 then
            return new KCell[] {};
        }
        SaxPoiCell[] xlsCells = new SaxPoiCell[cols];
        for (int i = 0; i < cols; i++) {
            Cell cell = row.getCell(i);
            if (cell != null) {
                xlsCells[i] = new SaxPoiCell(cell);
            }
        }
        return xlsCells;
    }

    public int getRows() {
        return sheet.getLastRowNum() + 1;
    }

    public KCell getCell(int colnr, int rownr) {
        Row row = sheet.getRow(rownr);
        if (row == null)
            return null;
        Cell cell = row.getCell(colnr);
        if (cell == null)
            return null;
        return new SaxPoiCell(cell);
    }
}