org.squale.squalix.tools.compiling.java.parser.configuration.JParserUtility.java Source code

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Here is the source code for org.squale.squalix.tools.compiling.java.parser.configuration.JParserUtility.java

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/**
 * Copyright (C) 2008-2010, Squale Project - http://www.squale.org
 *
 * This file is part of Squale.
 *
 * Squale 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 any later version.
 *
 * Squale 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 Lesser General Public License
 * along with Squale.  If not, see <http://www.gnu.org/licenses/>.
 */
/*
 * Cr le 27 juil. 05, par M400832.
 */
package org.squale.squalix.tools.compiling.java.parser.configuration;

import java.io.File;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import org.squale.squalix.configurationmanager.ConfigUtility;
import org.squale.squalix.tools.compiling.CompilingMessages;

/**
 * Cette classe utilise les mthodes de la classe <code>
 * org.squale.squalix.configurationmanager.ConfigUtility</code>.
 * <br/> La seule modification apporte se situe dans la mthode <code>
 * getRootNode(String, String)</code>. La mthode
 * <code>
 * db.parse()</code> ne prend plus un <code>InputStream</code> issu d'un <code>RessourceBundle</code> en
 * paramtre, mais une <code>String</code> qui est un chemin absolu.
 * 
 * @see org.squale.squalix.configurationmanager.ConfigUtility
 * @author m400832
 * @version 1.0
 */
public class JParserUtility {

    /**
     * Logger.
     */
    private static final Log LOGGER = LogFactory.getLog(JParserUtility.class);

    /**
     * Retourne l'lment racine du document XML de configuration.
     * 
     * @param pFile Fichier de configuration
     * @param pName Nom de la racine.
     * @return Le noeud racine.
     * @throws Exception si un problme apparat.
     */
    public static Node getRootNode(final String pFile, final String pName) throws Exception {
        LOGGER.debug(CompilingMessages.getString("logs.configuration.getRootNode"));
        /* cration du Document */
        DocumentBuilderFactory dbc = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbc.newDocumentBuilder();
        File f = new File(pFile);
        Document doc = db.parse(f);

        /* Rcupration de la liste des noeuds */
        NodeList nl = doc.getChildNodes();

        /* instanciation des noeuds */
        Node node = null;
        Node root = null;

        /*
         * tant qu'il y aura des noeuds ds la liste, et que l'on a pas trouv le noeud racine dsir
         */
        for (int i = 0; i < nl.getLength() && null == root; i++) {
            /* rcupration du i-me noeud */
            node = nl.item(i);
            /* si l'on trouve le noeud recherch */
            if (node.getNodeType() == Node.ELEMENT_NODE && node.getNodeName().equalsIgnoreCase(pName)) {
                /* alors on le stocke */
                root = node;
            }
        }
        return root;
    }

    /**
     * Retourne un lment directement enfant avec le nom dsir, ou null si celui-ci n'existe pas.
     * 
     * @param pParent Le noeud parent.
     * @param pName Le nom de l'lment recherch, insensible  la casse.
     * @return l'lment trouv ou null si non trouv.
     * @see ConfigUtility#getNodeByTagName(Node, String)
     */
    public static Node getNodeByTagName(Node pParent, String pName) {
        return ConfigUtility.getNodeByTagName(pParent, pName);
    }
}