alphaminerhelphandler.java

一个数据挖掘软件ALPHAMINERR的整个过程的JAVA版源代码

/*
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program 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 General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package eti.bi.alphaminer.core.help;

import java.awt.Component;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.LinkedList;

import javax.help.HelpBroker;
import javax.help.HelpSet;
import javax.help.HelpSetException;
import eti.bi.alphaminer.core.observer.Observer;
import eti.bi.common.Locale.Resource;
import eti.bi.common.System.SysConfig;
import eti.bi.common.System.SysLog;

/**
 * @author mli
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class AlphaminerHelpHandler implements Observer{
	// <<16/08/2006: Xiaojun Chen: Added for multi-language help>>
	
    // <<17/08/2005: Kenneth Lai: Added for helpHandler singleton
    private static AlphaminerHelpHandler m_alphaminerHelpHandler;
    // 17/08/2005: Kenneth Lai: Added for helpHandler singleton>>
	static final String helpsetName = "AlphaMiner.hs";
	
	private LinkedList<helpLocation> URLset = new LinkedList<helpLocation>();
	
//	 Main HelpSet & Broker
    HelpSet HS = null;
    // <<18/08/2005: Kenneth Lai: Modified for helpHandler singleton
    // HelpBroker HB;
    static HelpBroker HB;
    // 18/08/2005: Kenneth Lai: Modified for helpHandler singleton>>
    
    // 16/08/2006: Xiaojun Chen: Added for multi-language help>>
    
    public AlphaminerHelpHandler(){
    	
//          <<19/07/05: Mark Li: Add for JHelp
//    	 <<16/08/2006: Xiaojun Chen: Remove
    	/*
    	try {
    		ClassLoader cl = AlphaminerHelpHandler.class.getClassLoader();
            URL hsURL = HelpSet.findHelpSet(cl, helpsetName);
            HS = new HelpSet(null, hsURL);
            
    	} catch (Exception ee) {
            //              Say what the exception really is
            System.out.println("HelpSet " + ee.getMessage());
            System.out.println("HelpSet " + HS + " not found");
            return;
        }
        
        if ( HB == null ) {
            HB = HS.createHelpBroker();
        }
        */
//    	 16/08/2006: Xiaojun Chen: Remove>>
    	
        //CSH.setHelpIDString(this,"Sampling_htm");       
        //OperatorHB.enableHelpKey(this.getContentPane(), "AlphaMinerHelp.help", OperatorHS, "javax.help.MainWindow", null);      

        //19/07/05: Mark Li: Add for JHelp>>
    	
    	
    	// <<16/08/2006: Xiaojun Chen: Add for JHlp
    	//HS = new HelpSet();
    	//init();
    	// 16/08/2006: Xiaojun Chen: Add for JHlp>>
    }
    
    /**
     * add url of help set
     * @param classloader classloader for this help set
     * @param url url of help set
     * @throws Exception
     * */
    public void addUrl(ClassLoader classloader, URL url)  {
    	helpLocation aLocation = new helpLocation(classloader,url);
    	if(aLocation!=null) {
    		try {
    			aLocation.url.openStream();
    			HelpSet helpset = new HelpSet(aLocation.classloader,aLocation.url);
	   			HS.add(helpset);
	   			URLset.add(aLocation);
   		 	} catch (HelpSetException e) {
   				System.out.println("HelpSet " + HS + " not found");
   				e.printStackTrace();
   				SysLog.error("HelpSet " + HS + " not found", e);
   			} catch (Exception e) {
   				e.printStackTrace();
   			}
    	}
    }
    
    public void create(){
    	 HB = HS.createHelpBroker();
    }
    
    /**
     * reset the help set
     * */
    public void reset() {
    	HS = new HelpSet();
    }
    
    public void setHelpKey(Component c,String comptID){
		if (HS!=null && c!=null && comptID!=null)
		{
            HB.enableHelpKey(c, comptID, HS);
        }
    }
    
    // <<25/07/2005 Kenneth Lai: Add for JHelp
    public void setHelpButton(Component c, String comptID) {
		if (HS!=null && c!=null && comptID!=null)
		{
            HB.enableHelpOnButton(c, comptID, HS);
		}
    }
    // 25/07/2005 Kenneth Lai: Add for JHelp>>
    
    public HelpBroker getHelpBroker(){
        return HB;
    }
    public HelpSet getHelpSet(){
        return HS;
    }
    
    // <<17/08/2005: Kenneth Lai: Added for helpHandler singleton
    public static AlphaminerHelpHandler getInstance() {
        if (m_alphaminerHelpHandler == null ) {
            m_alphaminerHelpHandler = new AlphaminerHelpHandler();
        }
        return m_alphaminerHelpHandler;
    }
    // 17/08/2005: Kenneth Lai: Added for helpHandler singleton>>

    
    // <<16/08/2006 Xiaojun Chen: Added for multi-language helpHandler
	public void sendNotify(String a_Message) {
		if(a_Message.equals(Resource.CHANGE_LOCALE)) {
			synchronized(this) {
				URLset.clear();
				HS =new HelpSet();
				try {
					SysConfig.initAlphaminerHelp();
				} catch (MalformedURLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				return;
			}
		}
	}
    // 16/08/2006 Xiaojun Chen: Added for multi-language helpHandler>>

	public void sendNotify(int a_Message) {
		// TODO Auto-generated method stub
	}

	public void sendNotify(int a_Message, Object a_Object) {
		// TODO Auto-generated method stub
	}
}
class helpLocation{
	URL url;
	ClassLoader classloader;
	helpLocation(ClassLoader classloader2,URL url){
		this.classloader = classloader2;
		this.url = url;
	}
}