EventServlet.java

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 * Copyright (c) 2008, 2009 Bug Labs, Inc.
 * 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,
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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package com.buglabs.bug.event;

import java.io.BufferedReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.buglabs.util.XmlNode;
import com.buglabs.util.XmlParser;

public class EventServlet extends HttpServlet {
	private static final long serialVersionUID = -6041541048676568932L;

	private final Map eventMap;

	public EventServlet(Map eventMap) {
		this.eventMap = eventMap;
	}

	protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		BufferedReader br = new BufferedReader(req.getReader());
		StringBuffer reqStr = new StringBuffer();
		String line;
		while ((line = br.readLine()) != null) {
			reqStr.append(line);
		}

		XmlNode reqXml = XmlParser.parse(reqStr.toString());

		for (Iterator i = reqXml.getChildren().iterator(); i.hasNext();) {
			XmlNode eventXml = (XmlNode) i.next();
			Subscriber subscriber = new Subscriber(eventXml);

			if (subscriber.isValid()) {
				List subList = (List) eventMap.get(subscriber.getTopic());

				if (subList == null) {
					subList = new ArrayList();
					eventMap.put(subscriber.getTopic(), subList);
				}

				if (!subList.contains(subscriber)) {
					subList.add(subscriber);
				}
			}
		}
	}
}