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The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

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/* ====================================================================
   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.ss.formula.ptg;

import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.formula.SheetIdentifier;
import org.apache.poi.ss.formula.SheetNameFormatter;
import org.apache.poi.ss.formula.SheetRangeAndWorkbookIndexFormatter;
import org.apache.poi.ss.formula.SheetRangeIdentifier;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.util.LittleEndianOutput;

/**
 * Title:        XSSF Area 3D Reference (Sheet + Area)

 * 
Description:  Defined an area in an external or different sheet. 

 * 
REFERENCE:  
 * 
 * This is XSSF only, as it stores the sheet / book references
 *  in String form. The HSSF equivalent using indexes is {@link Area3DPtg}
 */
public final class Area3DPxg extends AreaPtgBase implements Pxg3D {
    private int externalWorkbookNumber = -1;
    private String firstSheetName;
    private String lastSheetName;

    public Area3DPxg(int externalWorkbookNumber, SheetIdentifier sheetName, String arearef) {
        this(externalWorkbookNumber, sheetName, new AreaReference(arearef, SpreadsheetVersion.EXCEL2007));
    }
    public Area3DPxg(int externalWorkbookNumber, SheetIdentifier sheetName, AreaReference arearef) {
        super(arearef);
        this.externalWorkbookNumber = externalWorkbookNumber;
        this.firstSheetName = sheetName.getSheetIdentifier().getName();
        if (sheetName instanceof SheetRangeIdentifier) {
            this.lastSheetName = ((SheetRangeIdentifier)sheetName).getLastSheetIdentifier().getName();
        } else {
            this.lastSheetName = null;
        }
    }

    public Area3DPxg(SheetIdentifier sheetName, String arearef) {
        this(sheetName, new AreaReference(arearef, SpreadsheetVersion.EXCEL2007));
    }
    public Area3DPxg(SheetIdentifier sheetName, AreaReference arearef) {
        this(-1, sheetName, arearef);
    }

    @Override
    public String toString() {
        StringBuffer sb = new StringBuffer();
        sb.append(getClass().getName());
        sb.append(" [");
        if (externalWorkbookNumber >= 0) {
            sb.append(" [");
            sb.append("workbook=").append(getExternalWorkbookNumber());
            sb.append("] ");
        }
        sb.append("sheet=").append(getSheetName());
        if (lastSheetName != null) {
            sb.append(" : ");
            sb.append("sheet=").append(lastSheetName);
        }
        sb.append(" ! ");
        sb.append(formatReferenceAsString());
        sb.append("]");
        return sb.toString();
    }
    
    public int getExternalWorkbookNumber() {
        return externalWorkbookNumber;
    }
    public String getSheetName() {
        return firstSheetName;
    }
    public String getLastSheetName() {
        return lastSheetName;
    }
    
    public void setSheetName(String sheetName) {
        this.firstSheetName = sheetName;
    }
    public void setLastSheetName(String sheetName) {
        this.lastSheetName = sheetName;
    }

    public String format2DRefAsString() {
        return formatReferenceAsString();
    }
    
    public String toFormulaString() {
        StringBuilder sb = new StringBuilder(64);

        SheetRangeAndWorkbookIndexFormatter.format(sb, externalWorkbookNumber, firstSheetName, lastSheetName);
        sb.append('!');
        sb.append(formatReferenceAsString());
        return sb.toString();
    }

    public int getSize() {
        return 1;
    }
    public void write(LittleEndianOutput out) {
        throw new IllegalStateException("XSSF-only Ptg, should not be serialised");
    }

}