Subversion Repositories SmartDukaan

package in.shop2020.serving.services;

import in.shop2020.config.ConfigException;

import in.shop2020.thrift.clients.config.ConfigClient;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.StringReader;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

import java.net.URLEncoder;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

import javax.xml.xpath.XPath;

import javax.xml.xpath.XPathConstants;

import javax.xml.xpath.XPathExpressionException;

import javax.xml.xpath.XPathFactory;

import org.apache.log4j.Logger;

import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

import org.xml.sax.InputSource;

public class EbsPaymentService implements IPaymentService{

	private static Logger log = Logger.getLogger(Class.class);

	public static final String STATUS = "status";

	public static final String ERR_CODE = "errorCode";

	public static final String ERROR = "error";

	public static final String TXN_ID = "transactionId";

	public static final String PAYMENT_ID = "paymentId";

	public static final String AMOUNT = "amount";

	public static final String DATE_TIME = "dateTime";

	public static final String MODE = "mode";

	public static final String REF_NO = "referenceNo";

	public static final String TXN_TYPE = "transactionType";

    private static String accountId;

    private static String secretKey;

	static{

		try {

			accountId = ConfigClient.getClient().get("ebs_account_id");

			secretKey = ConfigClient.getClient().get("ebs_secret_key");

		} catch (ConfigException e) {

			log.error("Unable to get EBS payment configuration.");

		}

	}

	private int gatewayId=2;

	private double amount;

	private long paymentId;

	public long createPayment(long currentCartId, long userId, long txnId){

		log.info("Creating payment for the txn#: " + txnId + " for the user: " + userId);

		CommonPaymentService cps = new CommonPaymentService();

		if(!cps.createPayment(currentCartId, userId, txnId, gatewayId)){

			log.error("Error while creating the basic payment");

			return PAYMENT_NOT_CREATED;

		}

		paymentId = cps.getPaymentId();

		amount = cps.getAmount();

		return paymentId;

	}

	public static Map<String, String> capturePayment(double amount, String paymentId){

		System.out.println("Capturing amount: Rs " + amount + " for payment Id: " + paymentId);

		URL url = null;

	    URLConnection urlConn = null;

	    DataOutputStream printout;

	    DataInputStream input;

	    Map<String, String> resultMap = null;

	    try {

		    // URL of CGI-Bin script.

			url = new URL ("https://secure.ebs.in/api/1_0");

		    // URL connection channel.

		    urlConn = url.openConnection();

		    //urlConn.setRequestMethod("POST");

	    } catch (MalformedURLException e1) {

			log.error("Unable to initialize connection to EBS API server", e1);

		} catch (IOException e) {

			log.error("Unable to initialize connection to EBS API server", e);

			e.printStackTrace();

		}

	    // Let the run-time system (RTS) know that we want input.

	    urlConn.setDoInput (true);

	    // Let the RTS know that we want to do output.

	    urlConn.setDoOutput (true);

	    // No caching, we want the real thing.

	    urlConn.setUseCaches (false);

	    // Specify the content type.

	    urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

	    // Send POST output.

	    try {

			printout = new DataOutputStream (urlConn.getOutputStream ());

		    String content =

			    "Action=" + URLEncoder.encode("capture") +

			    "&AccountID=" + URLEncoder.encode(accountId) +

			    "&SecretKey=" + URLEncoder.encode(secretKey) +

			    "&Amount=" + URLEncoder.encode(""+amount) +

			    "&PaymentID=" + URLEncoder.encode(paymentId) +

			    "&submitted=Submit";

		    printout.writeBytes (content);

		    printout.flush ();

		    printout.close ();

		    // Get response data.

		    input = new DataInputStream (urlConn.getInputStream ());

		    resultMap = parseCaptureOutput(input);

		    input.close ();

	    } catch (IOException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	    return resultMap;

	}

	private static Map<String, String> parseCaptureOutput(DataInputStream in){

		Map<String, String> resultMap = new HashMap<String, String>();

		resultMap.put(STATUS, "");

		String str = null;

		try {

			str = in.readLine();

			System.out.println(str);

			log.info("Capture response: " + str);

		} catch (IOException e) {

			log.error("Error reading the capture response:", e);

			return resultMap;

		}

		InputSource inputSource = new InputSource(new StringReader(str));

		XPath xpath = XPathFactory.newInstance().newXPath();

		String expression = "/output";

		NodeList nodes = null;

		try {

			nodes = (NodeList) xpath.evaluate(expression, inputSource,	XPathConstants.NODESET);

		} catch(XPathExpressionException xpee) {

			log.error("Input couldn't be parsed. See capture response for more info.");

			return resultMap;

		}

		Element elem = (Element) nodes.item(0);

		String status = elem.getAttribute(STATUS);

		resultMap.put(STATUS, status);

		if("".equals(status) || !"Processing".equals(status)){

			//We've received an error. Retrieve the error values

			resultMap.put(ERR_CODE, elem.getAttribute(ERR_CODE));

			resultMap.put(ERROR, elem.getAttribute(ERROR));

		}else{

			resultMap.put(TXN_ID, elem.getAttribute(TXN_ID));

			resultMap.put(PAYMENT_ID, elem.getAttribute(PAYMENT_ID));

			resultMap.put(AMOUNT, elem.getAttribute(AMOUNT));

			resultMap.put(DATE_TIME, elem.getAttribute(DATE_TIME));

			resultMap.put(MODE, elem.getAttribute(MODE));

			resultMap.put(REF_NO, elem.getAttribute(REF_NO));

			resultMap.put(TXN_TYPE, elem.getAttribute(TXN_TYPE));

		}

		log.info("Parsed capture response:");

		for(Entry<String, String> entry : resultMap.entrySet()){

			log.info("Key: " + entry.getKey() + ", Value: " + entry.getValue());

		}

		return resultMap;

	}

	public static void main(String[] args){

		capturePayment(30450.00, "2412653");

//		<output  transactionId="4793507"  paymentId="2411078"  amount="25005"  dateTime="2011-05-16 09:03:15"  mode="TEST"  referenceNo="4"  transactionType="Captured"  status="Processing"  />";

//		<output  errorCode="2"  error="Invalid Account ID/Secret Key"  />

//		<output  errorCode="12"  error="This payment is failed"  />

//		<output  errorCode="13"  error="This payment is captured already"  />		

	}

}