JsonUtils

/*
 *
 */
package com.ewallet.citygo.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.json.JSONObject;

import com.ewallet.citygo.config.AppConfig;

// TODO: Auto-generated Javadoc

/**
 * The Class JsonUtils.
 */
public class JsonUtils {

    /**
     * The Constant URL.
     */
    public static final String URL = AppConfig.PHOTOSERVERIP;
    public static final String RETRIEVE_MESSAGE_DETAIL = JsonUtils.URL + "SmartCatchCityGoWsWeb/ws/message/RETRIEVE_MESSAGE_DETAIL";
    //public static final String URL = "http://125.227.157.216:9168/";//JsonUtils周邊商家圖庫 2014/08/20 廢棄
    public static final String QUERY_NEARBY_BRANCH_BY_CONDITION = "SmartCatchCityGoWsWeb/ws/user/QUERY_NEARBY_BRANCHS_BY_CONDITIONS_AND_PAGING";
    //    public static final String QUERY_DISTRICT_BRANCHES = "user/QUERY_DISTRICT_BRANCHES_BY_CONDITIONS_AUTO_SORT_AND_PAGING";
    public static final String QUERY_MESSAGES_BY_TYPE_PAGING = "SmartCatchCityGoWsWeb/ws/message/QUERY_MESSAGES_BY_TYPE_PAGING";
    //    public static final String QUERY_SERVICE_NAME_BY_CATEGORY = "SmartCatchCityGoWsWeb/ws/service_category/get_category";
    public static final String QUERY_SERVICE_NAME_BY_CATEGORY = "SmartCatchCityGoWsWeb/ws/category/get_category";
    public static final String SUCCESS_MESSAGE = "SUCCESS";
    public static final String NOT_FOUND = "NOT_FOUND";
    /**
     * The Constant QUERY_NEARBY_BRANCH.
     */
    public static final String QUERY_NEARBY_BRANCH = "user/QUERY_NEARBY_BRANCHS_BY_CONDITIONS_AND_PAGING";
//    public static final String QUERY_DISTRICT_BRANCHES = "user/QUERY_DISTRICT_BRANCHES_BY_CONDITIONS_AUTO_SORT_AND_PAGING";
    /** The Constant QUERY_MESSAGES_BY_TYPE_PAGING. */

    /**
     * String convert to json object.
     *
     * @param value the value
     * @return the JSON object
     */
    public static JSONObject stringConvertToJsonObject(String value) {
        JSONObject object = null;
        try {
            object = new JSONObject(value);
        } catch (Exception e) {
            // TODO: handle exception
        }

        return object;

    }


    /**
     * Post.
     *
     * @param url  the url
     * @param json the json
     * @return the string
     */
    public static String POST(String url, String json) {
        InputStream inputStream = null;
        String result = "";
        try {

            // 1. create HttpClient
            HttpClient httpclient = new DefaultHttpClient();
            // 2. make POST request to the given URL
            HttpPost httpPost = new HttpPost(url);

            //Log.d("JsonUtils POST json.toString()", json.toString());
            // ** Alternative way to convert Person object to JSON string usin
            // Jackson Lib
            // ObjectMapper mapper = new ObjectMapper();
            // json = mapper.writeValueAsString(person);

            // 5. set json to StringEntity

            StringEntity se = new StringEntity(json.toString(), HTTP.UTF_8);

            // 6. set httpPost Entity
            httpPost.setEntity(se);

            // 7. Set some headers to inform server about the type of the
            // content
            httpPost.setHeader("Accept", "application/json");
            httpPost.setHeader("Content-type", "application/json");
            // httpPost.setHeader("user-agent", "Java/1.7.0_17");
            // httpPost.setHeader("connection", "keep-alive");

            // 8. Execute POST request to the given URL
            HttpResponse httpResponse = httpclient.execute(httpPost);

            // 9. receive response as inputStream
            inputStream = httpResponse.getEntity().getContent();

            // 10. convert inputstream to string
            if (inputStream != null)
                result = convertInputStreamToString(inputStream);
            else
                result = "Did not work!";

        } catch (Exception e) {
            e.printStackTrace();
        }

        // 11. return result
        Utils.myLog(result);


        return result;
    }

    /**
     * Convert input stream to string.
     *
     * @param inputStream the input stream
     * @return the string
     * @throws IOException Signals that an I/O exception has occurred.
     */
    private static String convertInputStreamToString(InputStream inputStream)
            throws IOException {
        BufferedReader bufferedReader = new BufferedReader(
                new InputStreamReader(inputStream));
        String line = "";
        String result = "";
        while ((line = bufferedReader.readLine()) != null)
            result += line;

        inputStream.close();
        return result;

    }
}