xplugindefaultserializer.java

XBrowser是一个完全免费并且开源的Web浏览器

/****************************************************************
*              XBrowser  -  eXtended web Browser                *
*                                                               *
*           Copyright (c) 2000-2001  Armond Avanes              *
*     Refer to ReadMe & License files for more information      *
*                                                               *
*                                                               *
*                      By: Armond Avanes                        *
*       [e-mail]     &    [e-mail]        *
*                http://xbrowser.sourceforge.net/               *
*****************************************************************/
package xbrowser.plugin.io;

import java.io.*;
import java.net.*;
import java.util.*;

import xbrowser.*;
import xbrowser.util.*;
import xbrowser.plugin.*;

import org.w3c.dom.*;

public class XPluginDefaultSerializer implements XPluginSerializer
{
	public XPluginDefaultSerializer()
	{
	}

	public void importPlugins(String file_name, XPluginManager plugin_manager) throws Exception
	{
	URL dtd_url = XRepository.getResourceManager().getResourceURL(DTD_URL);
	Document doc = XMLManager.readFileDocument(file_name, DTD_SYMBOL, dtd_url);
	Node node = XMLManager.findNode(doc,"xplugins").getNextSibling().getFirstChild();

		while( node!=null )
		{
			if( node instanceof Element )
			{
				if( node.getNodeName().equals("xplugin") )
					loadPlugin(node, plugin_manager);
			}

			node = node.getNextSibling();
		}
	}

	private void loadPlugin(Node node, XPluginManager plugin_manager) throws DOMException
	{
	String dock_str = XMLManager.getNodeAttribute(node, "dock");
	boolean auto_start = XMLManager.getNodeAttribute(node, "autostart").equals("true");
	XPluginObject plugin = new XPluginObject( XMLManager.getNodeAttribute(node, "resource") );

		plugin.setAutoStart(auto_start);
		if( dock_str.equals("floatable") )
			plugin.setDock( XProjectConstants.PLUGIN_DOCK_FLOATABLE );
		else if( dock_str.equals("dockable") )
			plugin.setDock( XProjectConstants.PLUGIN_DOCK_DOCKABLE );

		plugin_manager.addPlugin(plugin);
	}

	public void exportPlugins(String file_name, XPluginManager plugin_manager) throws Exception
	{
	Document doc = XMLManager.newDocument();
	Element root = (Element)doc.createElement("xplugins");

		doc.appendChild(root);

		//// Saving Plugins
	Iterator plugins = plugin_manager.getPlugins();

		while( plugins.hasNext() )
			savePlugin( (XPluginObject)plugins.next(), doc, root);
		//// Plugins Saved

		root.normalize();

		XMLManager.writeDocument(file_name, doc, null, DTD_SYMBOL, null);
	}

	private void savePlugin(XPluginObject plugin, Document doc, Element parent_node)
	{
	Element node = (Element)doc.createElement("xplugin");

		node.setAttribute("resource", plugin.getResource());
		if( plugin.getDock()==XProjectConstants.PLUGIN_DOCK_FLOATABLE )
			node.setAttribute("dock", "floatable");
		else if( plugin.getDock()==XProjectConstants.PLUGIN_DOCK_DOCKABLE )
			node.setAttribute("dock", "dockable");
		node.setAttribute("autostart", ""+plugin.isAutoStart());

		parent_node.appendChild(node);
	}

// Attributes:
    private final String DTD_SYMBOL = "xbrowser:default:plugin";
    private final String DTD_URL = XProjectConstants.DTD_DIR+"XPlugin.dtd";
}