googleIME & Gson

package test;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Type;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

public class Test {

    public static void main(String[] args) {
        // １文節
        toIME("とうきょうとっきょきょかきょくきょくちょう");

        // ４文節
        toIME("なかのくにおすまいのやまだたろうさん");

        // 末尾に「,」を付けると文節を区切らないよう指定できる。
        // https://www.google.co.jp/ime/cgiapi.html
        toIME("なかのくにおすまいのやまだたろうさん,");
    }

    @SuppressWarnings("rawtypes")
    public static String toIME(String kana) {
        URL url;
        try {
                        url = new URL("http://google.co.jp/transliterate?langpair=ja-Hira%7cja&text="
                                + URLEncoder.encode(kana, "UTF8"));
            URLConnection conn = url.openConnection();
            InputStream in = conn.getInputStream();

            Map<String,String> map = Json2Map(in);
            if (map == null) { return null; }
            Iterator entries = map.entrySet().iterator();
            StringBuilder sb = new StringBuilder();
            while(entries.hasNext()) {
                Map.Entry entry = (Map.Entry)entries.next();
                sb.append((String)entry.getValue());
            }
            return sb.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Map<String,String> Json2Map(InputStream googleIME) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(googleIME,"UTF-8"));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            br.close();
            System.out.println("------------------------------------------------");
            System.out.println("googleIMEの処理結果 : " + sb.toString());
            Gson gson = new Gson();
            //Object[] oList = gson.fromJson(sb.toString(), Object[].class);

            Type listType = new TypeToken<List>(){}.getType();
            List posts = (List) gson.fromJson(sb.toString(), listType);

            for (Object o : posts) {
                List list = (List) o;
                // 元の文字列
                System.out.println("元の文字列   ： " + list.get(0).toString());

                // 変換候補
                List koho = (List) list.get(1);
                // 変換候補１個目
                System.out.println("変換候補１   ： " + koho.get(0));

                // 変換候補全部
                System.out.print("変換候補全部 ： ");
                for (Object oo : koho) {
                    System.out.print(oo.toString() + " / ");
                }
                System.out.println();
                System.out.println();
            }
            return null;
        } catch(Exception e) {
            e.printStackTrace();
            return null;
        }
    }

}