import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;

public class EcoCostClient {

	static String EcoCostParamURL = null;
	static String EcoCostURL = null;
	static String TPRateURL = null;
static String reqFileName;
	static String type;
	static String ServiceName;
	static HashMap<String, String> urlList = new HashMap<String, String>();

	public static String readFile(String fileName) throws IOException {

		System.out.println("Reading input params from file :" + fileName);
		BufferedReader rd = new BufferedReader(new FileReader(fileName));
		StringBuilder sb = new StringBuilder();
		String line = "";
		while ((line = rd.readLine()) != null) {
			// System.out.println(line);
			sb.append(line);
		}

		return sb.toString();

	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String TYPE = null;
		System.out.println("Args length" + args.length);
		if (args.length == 2) {
			reqFileName = args[0];
			ServiceName = args[1];
		} else {
			System.out.println("Invalid argument passed ...!");
			System.out.println("Usage: <RestClient> <Request file name>  <ServiceURL(ECONOMICCOST_PARAM/TP_RATE) >");
			System.exit(1);
		}
		System.out.println(" Request URL :" + ServiceName);
		System.out.println(" Request Json File :" + reqFileName);

		String URL = ServiceName;
		if (URL == null) {
			System.out.println("Unable to find URL from input");
			System.exit(4);
		}

		try {
			String request = readFile(reqFileName);
			System.out.println("\nRequest: " + request);
			callService(URL, request);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

	public static void callService(String url1, String inputString) {

		try {

			URL url = new URL(url1);
			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
			conn.setDoOutput(true);
			conn.setRequestMethod("POST");
			conn.setRequestProperty("Content-Type", "application/json");

			String input = inputString;

			OutputStream os = conn.getOutputStream();
			os.write(input.getBytes());
			os.flush();
			InputStream _is;
			if (conn.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) {
				_is = conn.getInputStream();
			} else {
				/* error from server */
				_is = conn.getErrorStream();
			}
			BufferedReader br = new BufferedReader(new InputStreamReader(_is));

			String output;
			System.out.println("Output from Server .... \n");
			while ((output = br.readLine()) != null) {
				System.out.println(output);
			}

			conn.disconnect();

		} catch (MalformedURLException e) {

			e.printStackTrace();

		} catch (IOException e) {

			e.printStackTrace();

		}

	}

}