org.alanwilliamson.openbd.plugin.spreadsheet.functions.SpreadsheetDeleteColumn.java Source code

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Here is the source code for org.alanwilliamson.openbd.plugin.spreadsheet.functions.SpreadsheetDeleteColumn.java

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/* 
 *  Copyright (C) 2000 - 2009 TagServlet Ltd
 *
 *  This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
 *  
 *  OpenBD is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  Free Software Foundation,version 3.
 *  
 *  OpenBD is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with OpenBD.  If not, see http://www.gnu.org/licenses/
 *  
 *  Additional permission under GNU GPL version 3 section 7
 *  
 *  If you modify this Program, or any covered work, by linking or combining 
 *  it with any of the JARS listed in the README.txt (or a modified version of 
 *  (that library), containing parts covered by the terms of that JAR, the 
 *  licensors of this Program grant you additional permission to convey the 
 *  resulting work. 
 *  README.txt @ http://www.openbluedragon.org/license/README.txt
 *  
 *  http://www.openbluedragon.org/
 */
package org.alanwilliamson.openbd.plugin.spreadsheet.functions;

import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.alanwilliamson.openbd.plugin.spreadsheet.cfSpreadSheetData;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;

import com.naryx.tagfusion.cfm.engine.cfBooleanData;
import com.naryx.tagfusion.cfm.engine.cfData;
import com.naryx.tagfusion.cfm.engine.cfSession;
import com.naryx.tagfusion.cfm.engine.cfmRunTimeException;
import com.naryx.tagfusion.cfm.tag.tagUtils;
import com.naryx.tagfusion.expression.function.functionBase;

public class SpreadsheetDeleteColumn extends functionBase {
    private static final long serialVersionUID = 1L;

    public SpreadsheetDeleteColumn() {
        min = 2;
        max = 2;
    }

    public String[] getParamInfo() {
        return new String[] { "spreadsheet object",
                "column no - expressed as either a list of numbers or a range (2,3,5-9)" };
    }

    public java.util.Map getInfo() {
        return makeInfo("spreadsheet-plugin",
                "Deletes one or more columns from the active sheet; it will not shift any other columns",
                ReturnType.BOOLEAN);
    }

    public cfData execute(cfSession _session, List<cfData> parameters) throws cfmRunTimeException {
        cfSpreadSheetData spreadsheet = null;
        String cols;

        /*
         * Collect up the parameters
         */
        spreadsheet = (cfSpreadSheetData) parameters.get(1);
        cols = parameters.get(0).getString();

        Sheet sheet = spreadsheet.getActiveSheet();

        Set<Integer> numbers = tagUtils.getNumberSet(cols);
        Iterator<Row> rowIT = sheet.rowIterator();
        while (rowIT.hasNext()) {
            Row row = rowIT.next();

            Iterator<Integer> columnIndx = numbers.iterator();
            while (columnIndx.hasNext()) {
                Cell cell = row.getCell(columnIndx.next() - 1);
                if (cell != null) {
                    row.removeCell(cell);
                }
            }
        }

        return cfBooleanData.TRUE;
    }
}