/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package lupos.event.producer.ebay;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JOptionPane;
import lupos.datastructures.items.Triple;
import lupos.datastructures.items.literal.Literal;
import lupos.datastructures.items.literal.LiteralFactory;
import lupos.event.communication.SerializingMessageService;
import lupos.event.communication.TcpConnectInfo;
import lupos.event.communication.TcpMessageTransport;
import lupos.event.producer.ProducerBaseNoDuplicates;
import lupos.event.util.Literals;
public class EbayProducer extends ProducerBaseNoDuplicates {
public static final String NAMESPACE = "http://localhost/events/Ebay/";
private static final int INTERVAL = 20000;
private final static Literal TYPE = Literals.createURI(NAMESPACE, "EbayAuctionEvent");
static class Predicates {
public static final Literal TITLE = Literals.createURI(NAMESPACE, "title");
public static final Literal TIMELEFT = Literals.createURI(NAMESPACE, "timeLeft");
public static final Literal CURRENTPRICE = Literals.createURI(NAMESPACE, "currentPrice");
public static final Literal BUYITNOWPRICE = Literals.createURI(NAMESPACE, "buyItNowPrice");
public static final Literal SHIPPINGCOSTS = Literals.createURI(NAMESPACE, "shippingCosts");
}
private int subjectCounter = 0;
private ContentRetriever retriever;
public EbayProducer(SerializingMessageService msgService) {
super(msgService, INTERVAL);
Configuration.SECURITY_APPNAME = JOptionPane.showInputDialog("Join at http://developer.ebay.com/join to get your security app name.\nEnter your security app name here:", Configuration.SECURITY_APPNAME);
String keyword;
try {
keyword = URLEncoder.encode(JOptionPane.showInputDialog("Enter a keyword to be searched for:", "keyword"), "UTF-8");
} catch (UnsupportedEncodingException e) {
System.err.println(e);
e.printStackTrace();
keyword="";
}
this.retriever = new ContentRetriever(new Configuration(
keyword,
0, 1, Configuration.ENTRIES_PER_PAGE), null);
}
@Override
public List<List<Triple>> produceWithDuplicates() {
List<Auction> auctions = this.retriever.retrieveAuctions();
if(auctions == null) {
System.err.println("Error while retrieving auctions!");
return null;
}
List<List<Triple>> t = new ArrayList<List<Triple>>();
for(Auction a : auctions) {
System.out.println("title: " + a.title);
t.add(auctionToTriple(a));
}
return (t.size()==0)? null : t;
}
protected List<Triple> auctionToTriple(Auction auction) {
List<Triple> t = new ArrayList<Triple>();
Literal subj = LiteralFactory.createAnonymousLiteral("_:s" + (this.subjectCounter++));
if (auction.title != null) {
Literal obj = LiteralFactory.createLiteral("\""+auction.title+"\"");
t.add(new Triple(subj, Predicates.TITLE, obj));
}
if (auction.timeLeft != null) {
Literal obj = LiteralFactory.createLiteral("\""+auction.timeLeft+"\"");
t.add(new Triple(subj, Predicates.TITLE, obj));
}
if (auction.currentPrice != null) {
Literal obj = LiteralFactory.createLiteral("\""+auction.currentPrice+"\"");
t.add(new Triple(subj, Predicates.CURRENTPRICE, obj));
}
if (auction.buyItNowPrice != null) {
Literal obj = LiteralFactory.createLiteral("\""+auction.buyItNowPrice+"\"");
t.add(new Triple(subj, Predicates.BUYITNOWPRICE, obj));
}
if (auction.shippingServiceCost != null) {
Literal obj = LiteralFactory.createLiteral("\""+auction.shippingServiceCost+"\"");
t.add(new Triple(subj, Predicates.SHIPPINGCOSTS, obj));
}
t.add(new Triple(subj, Literals.RDF.TYPE, EbayProducer.TYPE));
return t;
}
public static void main(String[] args) throws Exception {
// create communication channel
SerializingMessageService msgService = new SerializingMessageService(TcpMessageTransport.class);
msgService.connect(new TcpConnectInfo("localhost", 4444));
// start producer
new EbayProducer(msgService).start();
}
}