downloadform.java

初学者的佳音 初学者的佳音 初学者的佳音

package x;


import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.lcdui.*;

import java.io.*;

import org.kxml2.io.*;
import org.xmlpull.v1.*;


class downLoadForm extends Form implements MenuListener,CommandListener,Runnable{
	
	static downLoadForm instance=null;
	public ReaderMIDlet read;
	
	Thread t;
	KXmlParser parser = new KXmlParser();

	MenuListener listener;
 	
 	Command slected=new Command("确锟斤拷",Command.EXIT,0);
 	
 	
 	XmlPullParserException XmlPull=new XmlPullParserException("");
 
    public downLoadForm(ReaderMIDlet read){
    	super("downLoad");
    	this.read=read;
    	this.addCommand(slected);
    	setCommandListener(this);
        this.listener=this;
    	t=new Thread(this);
    	t.start();
    }
	
    
    public void commandAction(Command arg0, Displayable arg1) {
		if(arg0==slected){
			
		}
		
	}
   
    public void run(){
    	
    	HttpConnection hc=null;
    	try {
    		
		

			KXmlParser parser = new KXmlParser();
			

			
			hc=(HttpConnection)Connector.open(ReaderMIDlet.LIST);
			
			parser.setInput(hc.openInputStream(),"UTF-8");

			
			
			
				parser.nextTag();
				parser.require(XmlPullParser.START_TAG, null, "bw");
				//System.out.println(parser.getAttributeValue(XmlPullParser.START_DOCUMENT));
				String version=parser.getAttributeValue(XmlPullParser.START_DOCUMENT);
				
				
		       if(RMSData.downloadFlag("version",version))

			
			    
			    
			{
		    	   
		 while (parser.nextTag () != XmlPullParser.END_TAG)
				
		 {  
			 readList(parser);
			
		 }

			parser.require(XmlPullParser.END_TAG, null, "bw");
		
			

			}else{
				
				
				ReaderMIDlet.vector=RMSData.readRS(ReaderMIDlet.tableName);
				
			}
				
		} catch (Exception e) {
			
		}
    
		mainCanvas mainList=new mainCanvas(ReaderMIDlet.tableName,read);
//		ReaderMIDlet read=new ReaderMIDlet();
	
	    Display.getDisplay(ReaderMIDlet.instance).setCurrent(mainList);
		
    }
		
    public void exception(IOException ioe)
	{
		Alert a=new Alert("Exception",ioe.toString(),null,null);
		a.setTimeout(Alert.FOREVER);
	}
    public void itemParsedDb(String table)
	{
    	RMSData.deleteRS(table);
	}

    public void itemParsed(String title,String parent,String table,String child,String adress)
	{
    	RMSData.writeRS(table,title,parent,table,child,adress);
    	
		
	}
	

	/** Read a story and append it to the list */

	void readList(KXmlParser parser)
		throws IOException, XmlPullParserException {
		
		
		
		String itemName=null,table=null,title=null,parent=null,child=null,adress=null;
		itemName=parser.getName();
		
		
		if(itemName.equals("table"))
		{
			while (parser.nextTag() != XmlPullParser.END_TAG)
			{
				parser.require(XmlPullParser.START_TAG, null, null);
				String name = parser.getName();
				
				String text = parser.nextText();
			
				if(name.equals("name"))
					table=text;
				
				parser.require(XmlPullParser.END_TAG, null, "name");
			}
			listener.itemParsedDb(table);
		}else if(itemName.equals("item")){
			
				while (parser.nextTag() != XmlPullParser.END_TAG)
				{
					parser.require(XmlPullParser.START_TAG, null, null);
					//String version=parser.getAttributeValue(XmlPullParser.START_TAG);
					
					String name = parser.getName();
					
				
					String text = parser.nextText();
					//System.out.println(parser.getAttributeValue(parser.getNamespace(),"ss"));
					
					if(name.equals("title"))
					{
						title=text;
						
					}
					 else if(name.equals("table"))
					  { 
						 table=text;
					  }
					 else if(name.equals("parent")){
						 parent=text;  
					    }
					 else if(name.equals("child")){
						 child=text; 
					    }
					 else if(name.equals("adress")){
						 adress=text;
					 }
					if(adress==null){adress="none";}
					if(child==null){child="none";}

					
					
				}
				listener.itemParsed(title,parent,table,child,adress);
			
			
		}	
			
	
		

	
    	
    	
    }
	
	
}