import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public ChannelCoordinator(ChannelReceiver receiver,
                          ChannelSender sender,
                          MembershipService service) {
    this();
    this.setClusterReceiver(receiver);
    this.setClusterSender(sender);
    this.setMembershipService(service);
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public void setClusterReceiver(ChannelReceiver clusterReceiver) {
    if ( clusterReceiver != null ) {
        this.clusterReceiver = clusterReceiver;
        this.clusterReceiver.setMessageListener(this);
    } else {
        if  (this.clusterReceiver!=null ) this.clusterReceiver.setMessageListener(null);
        this.clusterReceiver = null;
    }
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public void setClusterReceiver(ChannelReceiver clusterReceiver) {
	if (clusterReceiver != null) {
		this.clusterReceiver = clusterReceiver;
		this.clusterReceiver.setMessageListener(this);
	} else {
		if (this.clusterReceiver != null)
			this.clusterReceiver.setMessageListener(null);
		this.clusterReceiver = null;
	}
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public ChannelReceiver getClusterReceiver() {
    return clusterReceiver;
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
/**
 * Returns the channel receiver component
 * @return ChannelReceiver
 */
@Override
public ChannelReceiver getChannelReceiver() {
    return coordinator.getClusterReceiver();
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
/**
 * Sets the channel receiver component
 * @param clusterReceiver ChannelReceiver
 */
@Override
public void setChannelReceiver(ChannelReceiver clusterReceiver) {
    coordinator.setClusterReceiver(clusterReceiver);
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
@Override
public synchronized void run() {
    if ( buffer == null ) {
        int size = getRxBufSize();
        if (key.channel() instanceof DatagramChannel) {
            size = ChannelReceiver.MAX_UDP_SIZE;
        }
        if ( (getOptions() & OPTION_DIRECT_BUFFER) == OPTION_DIRECT_BUFFER) {
            buffer = ByteBuffer.allocateDirect(size);
        } else {
            buffer = ByteBuffer.allocate(size);
        }
    } else {
        buffer.clear();
    }
    if (key == null) {
        return; // just in case
    }
    if ( log.isTraceEnabled() )
        log.trace("Servicing key:"+key);

    try {
        ObjectReader reader = (ObjectReader)key.attachment();
        if ( reader == null ) {
            if ( log.isTraceEnabled() )
                log.trace("No object reader, cancelling:"+key);
            cancelKey(key);
        } else {
            if ( log.isTraceEnabled() )
                log.trace("Draining channel:"+key);

            drainChannel(key, reader);
        }
    } catch (Exception e) {
        //this is common, since the sockets on the other
        //end expire after a certain time.
        if ( e instanceof CancelledKeyException ) {
            //do nothing
        } else if ( e instanceof IOException ) {
            //dont spew out stack traces for IO exceptions unless debug is enabled.
            if (log.isDebugEnabled()) log.debug ("IOException in replication worker, unable to drain channel. Probable cause: Keep alive socket closed["+e.getMessage()+"].", e);
            else log.warn ("IOException in replication worker, unable to drain channel. Probable cause: Keep alive socket closed["+e.getMessage()+"].");
        } else if ( log.isErrorEnabled() ) {
            //this is a real error, log it.
            log.error("Exception caught in TcpReplicationThread.drainChannel.",e);
        }
        cancelKey(key);
    } finally {

    }
    key = null;
    // done, ready for more, return to pool
    getTaskPool().returnWorker (this);
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public static Data createRandomData() {
    return createRandomData(ChannelReceiver.MAX_UDP_SIZE);
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public ChannelCoordinator(ChannelReceiver receiver, ChannelSender sender, MembershipService service) {
	this();
	this.setClusterReceiver(receiver);
	this.setClusterSender(sender);
	this.setMembershipService(service);
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
public ChannelReceiver getClusterReceiver() {
	return clusterReceiver;
}
 

import org.apache.catalina.tribes.ChannelReceiver; //导入依赖的package包/类
@Override
public synchronized void run() {
	if (buffer == null) {
		int size = getRxBufSize();
		if (key.channel() instanceof DatagramChannel) {
			size = ChannelReceiver.MAX_UDP_SIZE;
		}
		if ((getOptions() & OPTION_DIRECT_BUFFER) == OPTION_DIRECT_BUFFER) {
			buffer = ByteBuffer.allocateDirect(size);
		} else {
			buffer = ByteBuffer.allocate(size);
		}
	} else {
		buffer.clear();
	}
	if (key == null) {
		return; // just in case
	}
	if (log.isTraceEnabled())
		log.trace("Servicing key:" + key);

	try {
		ObjectReader reader = (ObjectReader) key.attachment();
		if (reader == null) {
			if (log.isTraceEnabled())
				log.trace("No object reader, cancelling:" + key);
			cancelKey(key);
		} else {
			if (log.isTraceEnabled())
				log.trace("Draining channel:" + key);

			drainChannel(key, reader);
		}
	} catch (Exception e) {
		// this is common, since the sockets on the other
		// end expire after a certain time.
		if (e instanceof CancelledKeyException) {
			// do nothing
		} else if (e instanceof IOException) {
			// dont spew out stack traces for IO exceptions unless debug is
			// enabled.
			if (log.isDebugEnabled())
				log.debug(
						"IOException in replication worker, unable to drain channel. Probable cause: Keep alive socket closed["
								+ e.getMessage() + "].",
						e);
			else
				log.warn(
						"IOException in replication worker, unable to drain channel. Probable cause: Keep alive socket closed["
								+ e.getMessage() + "].");
		} else if (log.isErrorEnabled()) {
			// this is a real error, log it.
			log.error("Exception caught in TcpReplicationThread.drainChannel.", e);
		}
		cancelKey(key);
	} finally {

	}
	key = null;
	// done, ready for more, return to pool
	getTaskPool().returnWorker(this);
}