org.wetorrent.upnp.GatewayDeviceHandler.java Source code

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Here is the source code for org.wetorrent.upnp.GatewayDeviceHandler.java

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/* 
 *              weupnp - Trivial upnp java library 
 *
 * Copyright (C) 2008 Alessandro Bahgat Shehata, Daniele Castagna
 * 
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Alessandro Bahgat Shehata - ale dot bahgat at gmail dot com
 * Daniele Castagna - daniele dot castagna at gmail dot com
 * 
 */

package org.wetorrent.upnp;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * 
 * @author casta
 */
public class GatewayDeviceHandler extends DefaultHandler {

    private final Log logger = LogFactory.getLog(this.getClass());

    /**
     * 
     */
    private static final int STATE_INITIALIZED = 0;

    /**
     * 
     */
    private static final int STATE_SERVICE_LIST = 1;

    /**
     * 
     */
    private static final int STATE_WAN_COMMON_INTERFACE_CONFIG = 2;

    /**
     * 
     */
    private static final int STATE_WAN_IP_CONNECTION = 3;

    private final GatewayDevice device;
    private String currentElement;
    private short state = STATE_INITIALIZED;

    /** Creates a new instance of GatewayDeviceHandler */
    public GatewayDeviceHandler(final GatewayDevice device) {
        this.device = device;
    }

    @Override
    public void startElement(final String uri, final String localName, final String qName,
            final Attributes attributes) throws SAXException {
        currentElement = localName;
        if (state == STATE_INITIALIZED && "serviceList".equals(currentElement)) {
            state = STATE_SERVICE_LIST;
        }
    }

    @Override
    public void endElement(final String uri, final String localName, final String qName) {
        currentElement = "";
        if (localName.equals("service")) {
            if (device.getServiceTypeCIF() != null && device.getServiceTypeCIF()
                    .equals("urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1")) {
                state = STATE_WAN_COMMON_INTERFACE_CONFIG;
            }
            if (device.getServiceType() != null
                    && device.getServiceType().equals("urn:schemas-upnp-org:service:WANIPConnection:1")) {
                state = STATE_WAN_IP_CONNECTION;
            }
        }
    }

    @Override
    public void characters(final char[] ch, final int start, final int length) {
        final String value = new String(ch, start, length).trim();
        if (currentElement != null && !currentElement.isEmpty() && !value.isEmpty()) {
            logger.trace("Current element '" + currentElement + "' has value '" + value + "'");
        }
        if (currentElement.equals("URLBase")) {
            device.setURLBase(value);
        } else if (state == STATE_INITIALIZED || state == STATE_SERVICE_LIST) {
            if (state == STATE_INITIALIZED) {
                if ("friendlyName".equals(currentElement))
                    device.setFriendlyName(value);
                else if ("manufacturer".equals(currentElement))
                    device.setManufacturer(value);
                else if ("modelDescription".equals(currentElement))
                    device.setModelDescription(value);
                else if ("presentationURL".equals(currentElement))
                    device.setPresentationURL(value);
            }
            if (currentElement.equals("serviceType"))
                device.setServiceTypeCIF(value);
            else if (currentElement.equals("controlURL"))
                device.setControlURLCIF(value);
            else if (currentElement.equals("eventSubURL"))
                device.setEventSubURLCIF(value);
            else if (currentElement.equals("SCPDURL"))
                device.setSCPDURLCIF(value);
            else if (currentElement.equals("deviceType"))
                device.setDeviceTypeCIF(value);
        } else if (state == STATE_WAN_COMMON_INTERFACE_CONFIG) {
            if (currentElement.equals("serviceType"))
                device.setServiceType(value);
            else if (currentElement.equals("controlURL"))
                device.setControlURL(value);
            else if (currentElement.equals("eventSubURL"))
                device.setEventSubURL(value);
            else if (currentElement.equals("SCPDURL"))
                device.setSCPDURL(value);
            else if (currentElement.equals("deviceType"))
                device.setDeviceType(value);
        }
    }
}