LimeTorrentsAdapter.java

/*
 *	This file is part of Transdroid Torrent Search 
 *	<http://code.google.com/p/transdroid-search/>
 *	
 *	Transdroid Torrent Search is free software: you can redistribute 
 *	it and/or modify it under the terms of the GNU Lesser General 
 *	Public License as published by the Free Software Foundation, 
 *	either version 3 of the License, or (at your option) any later 
 *	version.
 *	
 *	Transdroid Torrent Search 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 Lesser General Public License for more details.
 *	
 *	You should have received a copy of the GNU Lesser General Public 
 *	License along with Transdroid.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.transdroid.search.RssFeedSearch;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import org.ifies.android.sax.Item;
import org.ifies.android.sax.RssParser;
import org.transdroid.search.SearchResult;
import org.transdroid.search.SortOrder;
import org.transdroid.util.FileSizeConverter;

/**
 * Search adapter for the LimeTorrents torrent site (based on custom search RSS feeds)
 * This adapter does not support sorting.
 * 
 * @author Eric Kok
 */
public class LimeTorrentsAdapter extends RssFeedSearchAdapter {

	protected SearchResult fromRssItemToSearchResult(Item item) {

		LimeTorrentsItem theItem = (LimeTorrentsItem) item;
		return new SearchResult(
				item.getTitle(),
				item.getEnclosureUrl(),
				item.getLink(),
				FileSizeConverter.getSize(theItem.size), 
				item.getPubdate(), 
				theItem.seeders, 
				theItem.leechers);
	}

	@Override
	protected String getUrl(String query, SortOrder order) {
		try {
			return "http://www.limetorrents.com/searchrss/" + URLEncoder.encode(query, "UTF-8") + "/";
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return null;
		}
	}

	@Override
	protected RssParser getRssParser(String url) {
		return new LimeTorrentsParser(url);
	}

	/**
	 * Custom item with the torrent size and seeders and leechters numbers
	 */
	public class LimeTorrentsItem extends Item {
		public int seeders, leechers;
		public long size;
	}
	
	/**
	 * Custom parser to parse the additional comments data property
	 */
	public class LimeTorrentsParser extends RssParser {

		public LimeTorrentsParser(String url) {
			super(url);
		}
		
		public Item createNewItem() {
			return new LimeTorrentsItem();
		}

	    public void addAdditionalData(String localName, Item item, String text) {
	    	LimeTorrentsItem theItem = (LimeTorrentsItem) item;
	    	if (localName.equalsIgnoreCase("description")) {
	    		// Contains the seeders and leechers, which looks something like 'Seeds: 1 , Leechers 9'
	    		try {
	    			String description = text.trim();
	    			String seedersText = "Seeds: ";
	    			int seedersStart = description.indexOf(seedersText);
	    			int seedersEnd = description.indexOf(" ", seedersStart + seedersText.length());
	    			if (seedersStart >= 0 && seedersEnd >= seedersStart) {
	    				theItem.seeders = Integer.parseInt(description.substring(seedersStart + seedersText.length(), seedersEnd));
	    			}
	    			String leechersText = "Leechers ";
	    			int leechersStart = description.indexOf(leechersText);
	    			if (leechersStart >= 0) {
	    				theItem.leechers = Integer.parseInt(description.substring(leechersStart + leechersText.length()));
	    			}
	    		} catch (NumberFormatException e) {
	    		}
	    	}
	    	if (localName.equalsIgnoreCase("size")) {
	    		try {
	    			theItem.size = Long.parseLong(text.trim());
	    		} catch (NumberFormatException e) {
	    		}
	    	}
	    }
	}

	@Override
	public String getSiteName() {
		return "LimeTorrents";
	}

	@Override
	public boolean isPrivateSite() {
		return false;
	}

	@Override
	public boolean usesToken() {
		return false;
	}

}