org.yccheok.jstock.engine.news.yahooRSSNewsEngine.java Source code

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Here is the source code for org.yccheok.jstock.engine.news.yahooRSSNewsEngine.java

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/*
* JStock - Free Stock Market Software
 * Copyright (C) 2012 Yan Cheng CHEOK <yccheok@yahoo.com>
 *
 * 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 2 of the License, or
 * (at your option) 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package org.yccheok.jstock.engine.news;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import javax.xml.stream.XMLStreamException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * This class makes yahoo news request and read RSS reply.
 * @author schern
 */
public class yahooRSSNewsEngine {
    public List<NewsItem> urlToBean(String ticker) throws XMLStreamException, MalformedURLException {

        try {

            JAXBContext jc = JAXBContext.newInstance(rss.class);
            Unmarshaller um = jc.createUnmarshaller();
            um.setEventHandler(new javax.xml.bind.helpers.DefaultValidationEventHandler());
            StringBuilder sb = new StringBuilder();
            sb.append(yahooNewsURL);
            sb.append(ticker);
            URL url = new URL(sb.toString());
            rss r = (rss) um.unmarshal(url);

            channel c = r.getCh();

            listItems = c.getNi();

        } catch (JAXBException e) {
            log.error(null, e);
        }

        return listItems;
    }

    List<NewsItem> listItems = new ArrayList<NewsItem>();
    private final String yahooNewsURL = "http://finance.yahoo.com/rss/headline?s=";

    private static final Log log = LogFactory.getLog(yahooRSSNewsEngine.class);
}