PresenceProcessor.java

package org.buddycloud.channelserver.packetprocessor.presence;

import java.util.Properties;

import org.apache.log4j.Logger;
import org.buddycloud.channelserver.Configuration;
import org.buddycloud.channelserver.channel.LocalDomainChecker;
import org.buddycloud.channelserver.packetprocessor.PacketProcessor;
import org.buddycloud.channelserver.utils.users.OnlineResourceManager;
import org.xmpp.packet.JID;
import org.xmpp.packet.Presence;

public class PresenceProcessor implements PacketProcessor<Presence> {

    private static final Logger LOGGER = Logger.getLogger(PresenceProcessor.class);

    private final Properties configuration;
    private OnlineResourceManager onlineUsers;

    public PresenceProcessor(Properties configuration, OnlineResourceManager onlineUsers) {
        this.configuration = configuration;
        this.onlineUsers = onlineUsers;

        if (configuration.getProperty(Configuration.CONFIGURATION_SERVER_DOMAIN) == null
                && configuration.getProperty(Configuration.CONFIGURATION_LOCAL_DOMAIN_CHECKER) == null) {
            throw new NullPointerException("Missing server domain configuration");
        }
    }

    @Override
    public void process(Presence packet) throws Exception {
        JID from = packet.getFrom();
        if (from == null || !LocalDomainChecker.isLocal(from.getDomain(), configuration)) {
            return;
        }

        LOGGER.debug("Processing presence from " + from.toString());

        String type = packet.getElement().attributeValue("type");
        onlineUsers.updateStatus(packet.getFrom(), type);
    }
}