tweet splitter for Japanese

SplitterTest.java

//
// http://www.my-notebook.net/3556cc11-42d5-471e-ba0b-c6946269a118.html
//

package test;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;

import org.json.JSONArray;
import org.json.JSONObject;
import org.json.XML;

public class SplitterTest {
	
    private String appid;
    public SplitterTest(String appid){
        this.appid=appid;
    }
    
    public ArrayList<String> split( String text ) {

    	ArrayList<String> list=new ArrayList<String>();
    	
    	StringBuffer sb=new StringBuffer();
    	
    	try{
    		
    		//
    		// 1) Yahoo日本語形態素解析に問い合わせ
    		//
    		
			//String filter="1|2|4|5|9|10";
			String filter="9|10";//名詞と動詞
			//String filter="9";//名詞のみ
			
			
			String url = "http://jlp.yahooapis.jp/MAService/V1/parse?" +
			"appid=" + this.appid +
			"&sentence=" + URLEncoder.encode(text, "UTF-8") +
			"&response=surface" +
			"&filter=" + filter +
			"&results=ma";
			
			

			URL myurl = new URL(url);

			BufferedReader br = new BufferedReader( new InputStreamReader( myurl.openStream() ,"UTF-8") );
			while(true){
				String line = br.readLine();
				if(line==null)
					break;
				sb.append(line);
			}

			br.close();

    		
			//
			// 2) 結果のXMLをJSONObjectに変換してから、単語を取得して配列にして返す
			//
    		
    		JSONObject obj = XML.toJSONObject(sb.toString());
    		//System.out.println(obj);
    		
    		JSONObject oResultSet = obj.getJSONObject("ResultSet");
    		JSONObject oMa        = oResultSet.getJSONObject("ma_result");
    		JSONObject oWordList  = oMa.getJSONObject("word_list");
    		JSONArray  wordArray  = oWordList.getJSONArray("word"); 
    		//System.out.println(wordArray);
    		
    		for(int i=0; i<wordArray.length(); i++){
    			JSONObject o = (JSONObject)wordArray.get(i);

    			//String word  = (String)o.get("surface");
    			//list.add( word );
    			
    			Object obj = o.get("surface");
			if( obj!=null ){
    				String word  = obj.toString();
    				list.add( word );
			}
    		}

    	}
    	catch(Exception ex){
    		ex.printStackTrace();
    	}
         
         return list;
    }
}