ChannelConfigHandler.java

// ---------------------------------------------------------------------------
// jWebSocket - Copyright (c) 2010 jwebsocket.org
// ---------------------------------------------------------------------------
// This program 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.
// 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 Lesser General Public License for
// more details.
// You should have received a copy of the GNU Lesser General Public License along
// with this program; if not, see <http://www.gnu.org/licenses/lgpl.html>.
// ---------------------------------------------------------------------------
package org.jwebsocket.config.xml;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import org.jwebsocket.config.Config;
import org.jwebsocket.config.ConfigHandler;

/**
 * Channel config handler to read channel configuration values.
 * @author puran
 * @version $Id$
 */
public class ChannelConfigHandler implements ConfigHandler {

	private static final String ELEMENT_CHANNEL = "channel";
	private static final String ID = "id";
	private static final String NAME = "name";
	private static final String SYSTEM = "system";
	private static final String PRIVATE = "private";
	private static final String SECRET = "secret";
	private static final String ACCESS = "access";
	private static final String OWNER = "owner";

	@Override
	public Config processConfig(XMLStreamReader streamReader) throws XMLStreamException {
		String id = "", name = "", secret = "", access = "", owner = "";
		boolean isPrivate = false, isSystem = false;
		while (streamReader.hasNext()) {
			streamReader.next();
			if (streamReader.isStartElement()) {
				String elementName = streamReader.getLocalName();
				if (elementName.equals(ID)) {
					streamReader.next();
					id = streamReader.getText();
				} else if (elementName.equals(NAME)) {
					streamReader.next();
					name = streamReader.getText();
				} else if (elementName.equals(SYSTEM)) {
					streamReader.next();
					String value = streamReader.hasText() ? streamReader.getText() : "";
					isSystem = (!value.equals("")) ? true : false;
				} else if (elementName.equals(PRIVATE)) {
					streamReader.next();
					String value = streamReader.hasText() ? streamReader.getText() : "";
					isPrivate = (!value.equals("")) ? true : false;
				} else if (elementName.equals(SECRET)) {
					streamReader.next();
					secret = streamReader.getText();
				} else if (elementName.equals(ACCESS)) {
					streamReader.next();
					access = streamReader.getText();
				} else if (elementName.equals(OWNER)) {
					streamReader.next();
					owner = streamReader.getText();
				} else {
					//ignore
				}
			}
			if (streamReader.isEndElement()) {
				String elementName = streamReader.getLocalName();
				if (elementName.equals(ELEMENT_CHANNEL)) {
					break;
				}
			}
		}
		return new ChannelConfig(id, name, isPrivate, isSystem, secret, access, owner);
	}
}