source: ether_eccad/trunk/ECCAD_INTERFACE/WEB-INF/src/org/medias/eccad/helpers/XmlHelper.java

package org.medias.eccad.helpers;

import java.io.InputStream;
import java.io.StringReader;
import java.util.Date;
import java.util.Iterator;
import java.util.Set;


import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;

public class XmlHelper {
        
        public static String createNode(String tag, String valeur) {
                String noeud = new String();
                if (valeur == null)
                        return "";
                
                valeur = valeur.trim();
                
                if ( valeur.equals("") || valeur.equals("NULL") || valeur.equals("xx")) {
                        return "";
                }
                
                noeud = "<" + tag + ">" + valeur + "</" + tag + ">" + "\n";
                
                return noeud;
        }
        
        public static String createNode(String tag, Date valeur) {
                if (valeur != null) {
                        return createNode(tag, valeur.toString());
                }
                return "";
        }
        
        public static String createNode(String tag, int valeur) {
                return createNode(tag, Integer.toString(valeur));
        }
        
        public static String createNode(String tag, long valeur) {
                return createNode(tag, Long.toString(valeur));
        }
        
        public static String createNode(String tag, Long valeur) {
                if (valeur != null) {
                        return createNode(tag, valeur.toString());
                }
                return "";
        }
        
        public static String objectToString(Object objet) {
                String retour = new String();
                
                if (objet != null)
                        retour = objet.toString();
                
                return retour;
        }
        
        public static String listToString(String nom, Set<?> liste) {
                String retour = new String();
                
                if (liste.size()==0)
                        return "";
                
                retour += "<" + nom + ">\n";
                
                for (Object object : liste) {
                        retour += object.toString();
                }
                
                retour += "</" + nom + ">\n";
                
                return retour;
        }
        
        /**
         * fonction pour récupérer juste 1 élement...
         * @param nom
         * @param liste
         * @param index
         * @return
         */
        public static String listToString(String nom, Set<?> liste, int index) {
                String retour = new String();
                
                if (liste.size()==0)
                        return "";
                
                Iterator<?> ite = liste.iterator();
                retour += ite.next().toString();
                

                return retour;
        }
        
public static Document getXMLtoDocument(InputStream is_xml, String identifiant) {

//      LoggerPerso.log(XmlHelper.class, LoggerPerso.WARN, "LECTURE XML");
                Document dom = null;
                InputSource is = null;
                SAXReader reader = new SAXReader();
                
                class NoDTDEntityResolver implements EntityResolver
                
                  {
                     public InputSource resolveEntity(String publicID, String systemID) 
                     {
                         return new InputSource(new StringReader(""));
                     }
                
                  }
                
                
                try {
                is = new InputSource(is_xml);
                is.setEncoding("ISO-8859-1"); }
                catch (Exception e) {
                        LoggerPerso.log(XmlHelper.class, LoggerPerso.WARN, "Erreur de lecture du xml", e);
                        return null;
                }
                
                
                try {

                        //Using factory get an instance of document builder
                        reader.setEntityResolver(new NoDTDEntityResolver());
                        //parse using builder to get DOM representation of the XML file
                         dom = reader.read(is);
                }
                catch(DocumentException etout) {
                        LoggerPerso.log(XmlHelper.class, LoggerPerso.WARN, "Document Exception " + identifiant);
                        LoggerPerso.log(XmlHelper.class, LoggerPerso.WARN, etout);
                        //etout.printStackTrace();
                        return null;
                }
                return dom;
        }
}