/*
* File: AmazonCartWrapper.java
* Created on 21 / desembre / 2007, 12:48
*
* Copyright (C) 2008 M.Àngels Cerveró Abelló
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package client.ws.milanas.cart;
import client.ws.milanas.cart.CartWrapper;
import client.ws.milanas.exceptions.SOAPEnvelopeCreationException;
import client.ws.milanas.helpers.SOAPEnvelopeCreator;
import client.ws.milanas.helpers.beans.Cart;
import client.ws.milanas.helpers.beans.CartItem;
import client.ws.milanas.helpers.dom.DOMCartHandler;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Properties;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPMessage;
import org.w3c.dom.Document;
/**
*
* @author milana
*/
public class AmazonCartWrapper implements CartWrapper
{
static private SOAPConnection connection;
static private Properties properties = new Properties();
private Cart cart;
/**
* Creates a new instance of AmazonCartWrapper
*/
public AmazonCartWrapper()
{
cart = null;
ClassLoader cl = this.getClass().getClassLoader();
try
{
properties.load(cl.getResourceAsStream("MilanasWSClient.properties"));
}
catch(IOException ioe){}
}
/**
* Creates a new SOAP connection for the WebService client
*/
public void createConnection()
{
try
{
connection = SOAPConnectionFactory.newInstance().createConnection();
}
catch(SOAPException se){}
}
/**
* Closes the SOAP connection of the client
*/
public void closeConnection()
{
try
{
connection.close();
}
catch(SOAPException se){}
}
/**
* Puts the Amazon item with the id "offeredId" into the Amazon's cart by
* calling the web service CartCreate or CartAdd depending on whether Amazon's
* Cart exists or it has to be created.
* The parameter quantity means the units of the product you want to insert
* into the Amazon's Cart.
* Once received the Amazon's response, this method saves the state of the cart
* that is sent with the shop message.
* This method returns true if the operation has succeded amb false otherwise.
*/
public boolean addItem(String offerId, int quantity) throws SOAPEnvelopeCreationException
{
ArrayList<CartItem> items = new ArrayList<CartItem>();
CartItem item = null;
Cart auxCart = null;
HashMap<String, String> parameters = new HashMap<String, String>();
SOAPMessage message, response = null;
DOMCartHandler dch = null;
Document doc = null;
if(quantity <= 0)
{
return true;
}
item = new CartItem();
item.setOfferId(offerId);
item.setQuantity(quantity);
items.add(item);
if(cart != null)
{
parameters.put("CartId", cart.getCartId());
parameters.put("HMAC", cart.getCartHmac());
message = SOAPEnvelopeCreator.createAmazonCartSOAPEnvelope("CartAdd", parameters, items, properties);
try
{
response = connection.call(message, properties.getProperty("endpoint"));
dch = new DOMCartHandler();
doc = response.getSOAPBody().extractContentAsDocument();
auxCart = dch.getCart(doc);
cart.setItems(auxCart.getItems());
cart.setTotal(auxCart.getTotal());
cart.setUrl(auxCart.getUrl());
if(dch.isItemAdded(doc))
{
return true;
}
else
{
return false;
}
}
catch(SOAPException se){return false;}
}
else
{
parameters.put("AssociateTag", properties.getProperty("AssociateTag"));
message = SOAPEnvelopeCreator.createAmazonCartSOAPEnvelope("CartCreate", parameters, items, properties);
try
{
response = connection.call(message, properties.getProperty("endpoint"));
dch = new DOMCartHandler();
doc = response.getSOAPBody().extractContentAsDocument();
if(dch.isItemAdded(doc))
{
cart = new Cart(dch.getCartId(doc), dch.getCartHmac(doc));
auxCart = dch.getCart(doc);
cart.setItems(auxCart.getItems());
cart.setTotal(auxCart.getTotal());
cart.setUrl(auxCart.getUrl());
return true;
}
else
{
return false;
}
}
catch(SOAPException se){return false;}
}
}
/**
* Modifies the items in the ArrayList in the Amazon's cart by
* calling the web service CartModify.
* Once received the Amazon's response, this method saves the cart that
* is sent with the shop message.
*/
public void modifyItems(ArrayList<CartItem> items) throws SOAPEnvelopeCreationException
{
HashMap<String, String> parameters = new HashMap<String, String>();
SOAPMessage message, response = null;
DOMCartHandler dch = null;
Document doc = null;
Cart auxCart = null;
if(cart != null)
{
parameters.put("CartId", cart.getCartId());
parameters.put("HMAC", cart.getCartHmac());
message = SOAPEnvelopeCreator.createAmazonCartSOAPEnvelope("CartModify", parameters, items, properties);
try
{
response = connection.call(message, properties.getProperty("endpoint"));
dch = new DOMCartHandler();
doc = response.getSOAPBody().extractContentAsDocument();
auxCart = dch.getCart(doc);
cart.setItems(auxCart.getItems());
cart.setTotal(auxCart.getTotal());
cart.setUrl(auxCart.getUrl());
}
catch(SOAPException se){}
}
}
/**
* Cleans the Amazon's Cart by calling the web service CartClear.
* Once received the Amazon's response, this method saves the cart that
* is sent with the shop message.
*/
public void resetCart() throws SOAPEnvelopeCreationException
{
HashMap<String, String> parameters = new HashMap<String, String>();
SOAPMessage message, response = null;
DOMCartHandler dch = null;
Document doc = null;
Cart auxCart = null;
if(cart != null)
{
parameters.put("CartId", cart.getCartId());
parameters.put("HMAC", cart.getCartHmac());
parameters.put("AssociateTag", properties.getProperty("AssociateTag"));
message = SOAPEnvelopeCreator.createAmazonCartSOAPEnvelope("CartClear", parameters, new ArrayList<CartItem>(), properties);
try
{
response = connection.call(message, properties.getProperty("endpoint"));
dch = new DOMCartHandler();
doc = response.getSOAPBody().extractContentAsDocument();
auxCart = dch.getCart(doc);
cart.setItems(auxCart.getItems());
cart.setTotal(auxCart.getTotal());
cart.setUrl(auxCart.getUrl());
}
catch(SOAPException se){}
}
}
/**
* Returns the state of the Amazon's Cart saved by this wrapper.
*/
public Cart getCart()
{
if(cart != null)
{
return cart;
}
return new Cart("", "");
}
}