dev.meng.wikidata.util.http.HttpUtils.java Source code

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Here is the source code for dev.meng.wikidata.util.http.HttpUtils.java

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package dev.meng.wikidata.util.http;

import dev.meng.wikidata.Configure;
import dev.meng.wikidata.util.string.StringConvertionException;
import dev.meng.wikidata.util.string.StringUtils;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.ProtocolException;
import java.net.URL;
import org.json.JSONObject;

/**
 *
 * @author meng
 */
public class HttpUtils {

    public static JSONObject queryForJSONResponse(URL url, String encoding)
            throws ProtocolException, IOException, StringConvertionException {
        JSONObject response = null;

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.connect();

        if (connection.getResponseCode() == 200) {
            response = new JSONObject(StringUtils.inputStreamToString(connection.getInputStream(), encoding));
        } else {
            throw new IOException("Error in opening: " + url + ", " + connection.getResponseCode() + " "
                    + connection.getResponseMessage());
        }

        return response;
    }
}