/**
*
*/
package org.javacommerce.google.servlet;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.ValidationException;
import org.javacommerce.core.config.JavaCommerce;
import org.javacommerce.google.APIUtil;
import org.javacommerce.google.ws.API;
import org.javacommerce.google.ws.APIException;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.xml.sax.SAXException;
import com.google.checkout.CheckoutRedirect;
import com.google.checkout.CheckoutShoppingCart;
/**
* @author Michael Blanton (mike@mikeblanton.com)
* @web.servlet name="Checkout"
* @web.servlet-mapping
* url-pattern="/Checkout"
*/
public class CheckoutServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 8746495624866745953L;
private static final Log LOG = LogFactory.getLog(CheckoutServlet.class);
/* (non-Javadoc)
* @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
protected void doPost(HttpServletRequest _request, HttpServletResponse _response) throws ServletException, IOException {
Document xml = null;
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Generating Shopping Cart");
}
CheckoutShoppingCart cart = APIUtil.buildCheckoutShoppingCart(_request);
String encSig = APIUtil.generateCartSignature(cart);
String encCart = APIUtil.encodeCart(cart);
if (_request.getParameter(APIUtil.PARAM_REDIRECT) != null && _request.getParameter(APIUtil.PARAM_REDIRECT).equals("true")) {
if (LOG.isDebugEnabled()) {
LOG.debug("Posting Cart to Google");
}
CheckoutRedirect redirect = API.postCheckoutShoppingCart(cart);
if (LOG.isDebugEnabled()) {
LOG.debug("Cart posted, adding redirect URL");
}
xml = APIUtil.generateXMLDocument(encSig, encCart, redirect);
}
else {
xml = APIUtil.generateXMLDocument(encSig, encCart);
}
} catch (InvalidKeyException e) {
if (LOG.isErrorEnabled()) {
LOG.error("InvalidKeyException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (MarshalException e) {
if (LOG.isErrorEnabled()) {
LOG.error("MarshalException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (ValidationException e) {
if (LOG.isErrorEnabled()) {
LOG.error("ValidationException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (NoSuchAlgorithmException e) {
if (LOG.isErrorEnabled()) {
LOG.error("NoSuchAlgorithmException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (HttpException e) {
if (LOG.isErrorEnabled()) {
LOG.error("HttpException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (IOException e) {
if (LOG.isErrorEnabled()) {
LOG.error("IOException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (ParserConfigurationException e) {
if (LOG.isErrorEnabled()) {
LOG.error("ParserConfigurationException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (TransformerException e) {
if (LOG.isErrorEnabled()) {
LOG.error("TransformerException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (SAXException e) {
if (LOG.isErrorEnabled()) {
LOG.error("SAXException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (JDOMException e) {
if (LOG.isErrorEnabled()) {
LOG.error("JDOMException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
} catch (APIException e) {
if (LOG.isErrorEnabled()) {
LOG.error("APIException generating CheckoutShoppingCart for " + API.GOOGLE_MERCHANT_ID + ": " + e.getLocalizedMessage(), e);
}
xml = JavaCommerce.buildExceptionXML(e, "There was an exception processing the request - please contact your administrator.");
}
_response.addHeader("Content-Type", "text/xml");
JavaCommerce.XML_COMPACT_OUTPUTTER.output(xml, _response.getOutputStream());
if (LOG.isDebugEnabled()) {
LOG.debug("XML written to Output Stream");
}
}
}