/*

* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

package com.nokia.helium.sysdef;

import java.io.File;

import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;

import org.xml.sax.SAXException;

/**

 * This class implement the logic to parse package_map.xml files.

 *

 * Example of package_map.xml file:

 * <code>

 * <?xml version="1.0"?>

 * <PackageMap root="sf" layer="app" />

 * </code>

 * 

 */

public class PackageMap {

    private String root;

    private String layer;

    /**

     * Create a PackageMapParser by loading data from an XML file.

     * 

     * @param file the file to parse

     * @throws PackageMapParsingException in case of error

     */

    public PackageMap(File file) throws PackageMapParsingException {

        try {

            DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();

            Document doc = builder.parse(file);

            if (!doc.getDocumentElement().getNodeName().equals("PackageMap")) {

            }

            if (!doc.getDocumentElement().hasAttribute("root")) {

            }

            if (!doc.getDocumentElement().hasAttribute("layer")) {

            }

            setRoot(doc.getDocumentElement().getAttribute("root"));

            setLayer(doc.getDocumentElement().getAttribute("layer"));

        } catch (ParserConfigurationException e) {

            throw new PackageMapParsingException("Error from the XML parser configuration: " + e.getMessage(), e);

        } catch (SAXException e) {

            throw new PackageMapParsingException("Error parsing the file: " + file + ": " + e.getMessage(), e);

        } catch (IOException e) {

            throw new PackageMapParsingException(e.getMessage(), e);

        }

    }

    public void setRoot(String root) {

        this.root = root;

    }

    public String getRoot() {

        return root;

    }

    public void setLayer(String layer) {

        this.layer = layer;

    }

    public String getLayer() {

        return layer;

    }

}