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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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/**
 * Copyright (C) 2011-2015 The XDocReport Team 
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package fr.opensagres.poi.xwpf.converter.pdf.internal.elements;

import java.util.HashMap;
import java.util.Map;

import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSectPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STHdrFtr;

import fr.opensagres.poi.xwpf.converter.core.IXWPFMasterPage;
import fr.opensagres.xdocreport.itext.extension.IMasterPage;
import fr.opensagres.xdocreport.itext.extension.IMasterPageHeaderFooter;
import fr.opensagres.xdocreport.itext.extension.MasterPage;

public class StylableMasterPage
    extends MasterPage
    implements IMasterPage, IXWPFMasterPage
{

    private final CTSectPr sectPr;

    private int type;

    private final Map headers;

    private final Map footers;

    private IMasterPageHeaderFooter currentHeader;

    private IMasterPageHeaderFooter currentFooter;

    public StylableMasterPage( CTSectPr sectPr )
    {
        super( null );
        this.sectPr = sectPr;
        this.headers = new HashMap();
        this.footers = new HashMap();
    }

    public CTSectPr getSectPr()
    {
        return sectPr;
    }

    public boolean setType( int type )
    {
        this.type = type;
        boolean h = updateHeader( type );
        boolean f = updateFooter( type );
        return h || f;

    }

    private boolean updateHeader( int type )
    {
        IMasterPageHeaderFooter oldHeader = currentHeader;
        currentHeader = headers.get( type );
        if ( currentHeader == null )
        {
            currentHeader = headers.get( STHdrFtr.INT_DEFAULT );
        }
        if ( currentHeader == null )
        {
            return oldHeader != null;
        }
        return !currentHeader.equals( oldHeader );
    }

    private boolean updateFooter( int type )
    {
        IMasterPageHeaderFooter oldFooter = currentFooter;
        currentFooter = footers.get( type );
        if ( currentFooter == null )
        {
            currentFooter = footers.get( STHdrFtr.INT_DEFAULT );
        }
        if ( currentFooter == null )
        {
            return oldFooter != null;
        }
        return !currentFooter.equals( oldFooter );
    }

    public int getType()
    {
        return type;
    }

    @Override
    public void setHeader( IMasterPageHeaderFooter header )
    {
        header.flush();
        if ( !header.isEmpty() )
        {
            headers.put( type, header );
        }
    }

    @Override
    public void setFooter( IMasterPageHeaderFooter footer )
    {
        footer.flush();
        if ( !footer.isEmpty() )
        {
            footers.put( type, footer );
        }
    }

    @Override
    public IMasterPageHeaderFooter getHeader()
    {
        return currentHeader;
    }

    @Override
    public IMasterPageHeaderFooter getFooter()
    {
        return currentFooter;
    }
}