package org.gsm.oneapi.server.payment;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.codehaus.jackson.map.ObjectMapper;
import org.gsm.oneapi.responsebean.payment.AmountTransaction;
import org.gsm.oneapi.server.ValidationRule;
/**
* Servlet implementing the OneAPI function for the payment API - charging an end user
*/
public class AmountChargeServlet extends PaymentServlet implements Runnable {
static Logger logger=Logger.getLogger(AmountChargeServlet.class);
private static final long serialVersionUID = -6237772242372106922L;
private final String[] validationRules={"1", "payment", "*", "transactions", "amount"};
public void init() throws ServletException {
logger.debug("AmountChargeServlet initialised");
}
private AmountTransaction callbackData=null;
private String callbackURL=null;
public AmountChargeServlet() {
}
public AmountChargeServlet(AmountTransaction callbackData, String callbackURL) {
this.callbackData=callbackData;
this.callbackURL=callbackURL;
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{
dumpRequestDetails(request, logger);
String[] requestParts=getRequestParts(request);
if (validateRequest(request, response, requestParts, validationRules)) {
/*
* Decode all provided parameters
*/
String endUserId=requestParts[2];
String referenceCode=nullOrTrimmed(request.getParameter("referenceCode"));
String transactionOperationStatus=nullOrTrimmed(request.getParameter("transactionOperationStatus"));
String description=nullOrTrimmed(request.getParameter("description"));
String currency=nullOrTrimmed(request.getParameter("currency"));
Double amount=parseDouble(request.getParameter("amount"));
String code=nullOrTrimmed(request.getParameter("code"));
String callbackURL=nullOrTrimmed(request.getParameter("callbackURL"));
String clientCorrelator=nullOrTrimmed(request.getParameter("clientCorrelator"));
String purchaseCategoryCode=nullOrTrimmed(request.getParameter("purchaseCategoryCode"));
String onBehalfOf=nullOrTrimmed(request.getParameter("onBehalfOf"));
String channel=nullOrTrimmed(request.getParameter("channel"));
Double taxAmount=parseDouble(request.getParameter("taxAmount"));
String serviceID=nullOrTrimmed(request.getParameter("serviceID"));
String productID=nullOrTrimmed(request.getParameter("productID"));
ValidationRule[] rules=null;
if (code!=null) {
rules=new ValidationRule[] {
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY_TEL, "endUserId", endUserId),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "referenceCode", referenceCode),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "transactionOperationStatus", transactionOperationStatus, "charged"),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "description", description),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "code", code),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_URL, "callbackURL", callbackURL),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "clientCorrelator", clientCorrelator),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "onBehalfOf", onBehalfOf),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "purchaseCategoryCode", purchaseCategoryCode),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_PAYMENT_CHANNEL, "channel", channel),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_DOUBLE_GE_ZERO, "taxAmount", taxAmount),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "serviceID", serviceID),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "productID", productID),
};
} else {
rules=new ValidationRule[] {
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY_TEL, "endUserId", endUserId),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "referenceCode", referenceCode),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "transactionOperationStatus", transactionOperationStatus, "charged"),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "description", description),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY, "currency", currency),
new ValidationRule(ValidationRule.VALIDATION_TYPE_MANDATORY_DOUBLE_GE_ZERO, "amount", amount),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_URL, "callbackURL", callbackURL),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "clientCorrelator", clientCorrelator),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "onBehalfOf", onBehalfOf),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "purchaseCategoryCode", purchaseCategoryCode),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_PAYMENT_CHANNEL, "channel", channel),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL_DOUBLE_GE_ZERO, "taxAmount", taxAmount),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "serviceID", serviceID),
new ValidationRule(ValidationRule.VALIDATION_TYPE_OPTIONAL, "productID", productID),
};
}
if (checkRequestParameters(response, rules)) {
/*
* Generate response
*/
String serverReferenceCode="ABC-123";
String resourceURL=getRequestHostnameAndContext(request)+request.getServletPath()+"/1/payment/"+(endUserId!=null?urlEncode(endUserId):"")+"/transactions/amount"+(referenceCode!=null?("/"+urlEncode(serverReferenceCode)):"");
AmountTransaction rd=new AmountTransaction();
rd.setClientCorrelator(clientCorrelator);
rd.setEndUserId(endUserId);
AmountTransaction.PaymentAmount.ChargingInformation charge=new AmountTransaction.PaymentAmount.ChargingInformation();
charge.setAmount(amount);
charge.setCurrency(currency);
charge.setDescription(description);
AmountTransaction.PaymentAmount payment=new AmountTransaction.PaymentAmount();
payment.setChargingInformation(charge);
payment.setTotalAmountCharged(amount);
rd.setPaymentAmount(payment);
rd.setReferenceCode(referenceCode);
if (callbackURL==null) {
rd.setTransactionOperationStatus(transactionOperationStatus);
} else {
rd.setTransactionOperationStatus("Processing");
}
rd.setResourceURL(resourceURL);
rd.setClientCorrelator(clientCorrelator);
rd.setServerReferenceCode(serverReferenceCode);
ObjectMapper mapper=new ObjectMapper();
String jsonResponse="{\"amountTransaction\":"+mapper.writeValueAsString(rd)+"}";
if (callbackURL==null) {
sendJSONResponse(response, jsonResponse, CREATED, resourceURL);
} else {
sendJSONResponse(response, jsonResponse, ACCEPTED, resourceURL);
AmountChargeServlet t=new AmountChargeServlet(rd, callbackURL);
new Thread(t).start();
}
}
}
}
public void run() {
logger.debug("Notifier Thread :: Sleeping now...");
try {
Thread.sleep(10000L);
} catch (Exception e) {}
logger.debug("Notifier Thread :: Awoken");
callbackData.setTransactionOperationStatus("charged");
try {
logger.debug("Notifier Thread :: Creating connection to "+callbackURL);
HttpURLConnection con = (HttpURLConnection) new URL(callbackURL).openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/json");
con.setDoOutput(true);
con.setDoInput(true);
con.setUseCaches(false);
ObjectMapper mapper=new ObjectMapper();
String jsonResponse="{\"amountTransaction\":"+mapper.writeValueAsString(callbackData)+"}";
logger.debug("Notifier Thread :: Sending JSON data: "+jsonResponse);
OutputStream output=con.getOutputStream();
byte[] ba=jsonResponse.getBytes();
output.write (ba);
output.flush();
output.close();
logger.debug("Notifier Thread :: Finished output");
logger.debug("Notifier Thread :: Reading response");
InputStream in=con.getInputStream();
logger.debug("Notifier Thread :: Response code: "+con.getResponseCode());
if (in!=null) {
int c;
StringBuffer rbuf=new StringBuffer();
while ((c=in.read())!=-1) {
rbuf.append((char) c);
}
logger.debug("Notifier Thread :: Read: "+rbuf.toString());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}