/*
 * Copyright
 *   2007 axYus - www.axyus.com
 *   2005 C.Marchand - christophe.marchand@axyus.com
 *
 * This file is part of XEMELIOS.
 *
 * XEMELIOS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * XEMELIOS 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with XEMELIOS; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package fr.gouv.finances.cp.xemelios.common.config;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.log4j.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import fr.gouv.finances.cp.utils.xml.marshal.InvalidXmlDefinition;
import fr.gouv.finances.cp.utils.xml.marshal.NoeudModifiable;
import fr.gouv.finances.cp.utils.xml.marshal.XmlAttributes;
import fr.gouv.finances.cp.utils.xml.marshal.XmlMarshallable;
import fr.gouv.finances.cp.utils.xml.marshal.XmlOutputter;

/**
 * Modelise une entree de liste de selection
 * @author chm
 */
public class OptionModel implements NoeudModifiable {
    Logger logger = Logger.getLogger(OptionModel.class);
    private NoeudModifiable _NMParent = null;
    
    public static final transient String TAG = "option";
    private String value;
    private StringBuffer libelle;
    private String tagName;
    
    public OptionModel(String tagName) {super(); this.tagName=tagName; libelle = new StringBuffer();}
    public void addCharacterData(String cData) throws SAXException {
        libelle.append(cData);
    }
    public void addChild(XmlMarshallable child, String tagName)throws SAXException {}
    public XmlMarshallable getAttributes(XmlAttributes attributes) throws SAXException {
        value = (attributes.getValue("value")!=null?attributes.getValue("value"):value);
        return this;
    }
    public void marshall(XmlOutputter output) {
        output.startTag(TAG);
        output.addAttribute("value",StringEscapeUtils.escapeXml(value));
        output.addCharacterData(StringEscapeUtils.escapeXml(libelle.toString()));
        output.endTag(TAG);
    }
    public void validate() throws InvalidXmlDefinition {
        if(value==null || value.length()==0) throw new InvalidXmlDefinition("//"+tagName+"/@value is required and can not be null ("+getParentAsNoeudModifiable().getConfigXPath()+").");
        if(getLibelle().length()==0) throw new InvalidXmlDefinition("<"+tagName+"> content can not be empty ("+getConfigXPath()+")");
    }
    public String getLibelle() {return libelle.toString();}
    public String getValue() {return value;}
    @Override
    public OptionModel clone() {
        OptionModel om = new OptionModel(TAG);
        om.value=this.value;
        om.libelle = this.libelle;
        return om;
    }
    
    public void modifyAttr(String attrName, String value) {
        // TODO Raccord de m�thode auto-g�n�r�
        
    }
    
    public void modifyAttrs(Attributes attrs) {
        try {
            getAttributes(new XmlAttributes(attrs));
        } catch (Exception e) {
            logger.error("Erreur lors de la mise � jour des attributs : "+e);
        }
    }
    
    public void setParentAsNoeudModifiable(NoeudModifiable p) {
        this._NMParent = p;
    }
    public NoeudModifiable getParentAsNoeudModifiable() {
        return this._NMParent;
    }
    public NoeudModifiable getChildAsNoeudModifiable(String tagName, String id) {
        return null;
    }
    public String[] getChildIdAttrName(String childTagName) {
        return null;
    }
    public void resetCharData() {
        libelle.setLength(0);
    }
    public String getIdValue() { return null; }
    private String configXPath = null;
    public String getConfigXPath() {
        if(configXPath==null) {
            if(getParentAsNoeudModifiable()!=null) configXPath = getParentAsNoeudModifiable().getConfigXPath();
            else configXPath="";
            configXPath+="/"+TAG+"[@value='"+getValue()+"']";
        }
        return configXPath;
    }
}
