/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.remote;
import org.jboss.ejb.client.ClusterContext;
import org.jboss.ejb.client.ClusterNodeManager;
import org.jboss.ejb.client.EJBClientConfiguration;
import org.jboss.ejb.client.EJBReceiver;
import org.jboss.ejb.client.remoting.IoFutureHelper;
import org.jboss.ejb.client.remoting.NetworkUtil;
import org.jboss.ejb.client.remoting.ReconnectHandler;
import org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver;
import org.jboss.logging.Logger;
import org.jboss.remoting3.Connection;
import org.jboss.remoting3.Endpoint;
import org.xnio.IoFuture;
import org.xnio.OptionMap;
import javax.security.auth.callback.CallbackHandler;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
/**
* @author Jaikiran Pai
*/
class RemotingConnectionClusterNodeManager implements ClusterNodeManager {
private static final Logger logger = Logger.getLogger(RemotingConnectionClusterNodeManager.class);
private final String nodeName;
private final ClusterContext clusterContext;
private final String destinationHost;
private final int destinationPort;
private final Endpoint endpoint;
RemotingConnectionClusterNodeManager(final ClusterContext clusterContext, final Endpoint endpoint,
final String nodeName, final String destinationHost,
final int destinationPort) {
this.nodeName = nodeName;
this.clusterContext = clusterContext;
this.destinationHost = destinationHost;
this.destinationPort = destinationPort;
this.endpoint = endpoint;
}
@Override
public String getNodeName() {
return this.nodeName;
}
@Override
public EJBReceiver getEJBReceiver() {
Connection connection;
final ReconnectHandler reconnectHandler;
OptionMap channelCreationOptions = OptionMap.EMPTY;
final EJBClientConfiguration ejbClientConfiguration = this.clusterContext.getEJBClientContext().getEJBClientConfiguration();
try {
// if the client configuration is available create the connection using those configs
if (ejbClientConfiguration != null) {
final EJBClientConfiguration.ClusterConfiguration clusterConfiguration = ejbClientConfiguration.getClusterConfiguration(clusterContext.getClusterName());
if (clusterConfiguration == null) {
// use default configurations
final OptionMap connectionCreationOptions = OptionMap.EMPTY;
final CallbackHandler callbackHandler = ejbClientConfiguration.getCallbackHandler();
final IoFuture<Connection> futureConnection = NetworkUtil.connect(endpoint, destinationHost, destinationPort, null, connectionCreationOptions, callbackHandler, null);
// wait for the connection to be established
connection = IoFutureHelper.get(futureConnection, 5000, TimeUnit.MILLISECONDS);
// create a re-connect handler (which will be used on connection breaking down)
reconnectHandler = new ClusterNodeReconnectHandler(destinationHost, destinationPort, connectionCreationOptions, callbackHandler, channelCreationOptions, 5000);
} else {
final EJBClientConfiguration.ClusterNodeConfiguration clusterNodeConfiguration = clusterConfiguration.getNodeConfiguration(this.getNodeName());
// use the specified configurations
channelCreationOptions = clusterNodeConfiguration == null ? clusterConfiguration.getChannelCreationOptions() : clusterNodeConfiguration.getChannelCreationOptions();
final OptionMap connectionCreationOptions = clusterNodeConfiguration == null ? clusterConfiguration.getConnectionCreationOptions() : clusterNodeConfiguration.getConnectionCreationOptions();
final CallbackHandler callbackHandler = clusterNodeConfiguration == null ? clusterConfiguration.getCallbackHandler() : clusterNodeConfiguration.getCallbackHandler();
final IoFuture<Connection> futureConnection = NetworkUtil.connect(endpoint, destinationHost, destinationPort, null, connectionCreationOptions, callbackHandler, null);
final long timeout = clusterNodeConfiguration == null ? clusterConfiguration.getConnectionTimeout() : clusterNodeConfiguration.getConnectionTimeout();
// wait for the connection to be established
connection = IoFutureHelper.get(futureConnection, timeout, TimeUnit.MILLISECONDS);
// create a re-connect handler (which will be used on connection breaking down)
reconnectHandler = new ClusterNodeReconnectHandler(destinationHost, destinationPort, connectionCreationOptions, callbackHandler, channelCreationOptions, timeout);
}
} else {
// create the connection using defaults
final OptionMap connectionCreationOptions = OptionMap.EMPTY;
final CallbackHandler callbackHandler = new AnonymousCallbackHandler();
final IoFuture<Connection> futureConnection = NetworkUtil.connect(endpoint, destinationHost, destinationPort, null, connectionCreationOptions, callbackHandler, null);
// wait for the connection to be established
connection = IoFutureHelper.get(futureConnection, 5000, TimeUnit.MILLISECONDS);
// create a re-connect handler (which will be used on connection breaking down)
reconnectHandler = new ClusterNodeReconnectHandler(destinationHost, destinationPort, connectionCreationOptions, callbackHandler, channelCreationOptions, 5000);
}
} catch (Exception e) {
logger.info("Could not create a connection for cluster node " + this.nodeName + " in cluster " + clusterContext.getClusterName(), e);
return null;
}
return new RemotingConnectionEJBReceiver(connection, reconnectHandler, channelCreationOptions);
}
private class ClusterNodeReconnectHandler implements ReconnectHandler {
private final String destinationHost;
private final int destinationPort;
private final OptionMap connectionCreationOptions;
private final OptionMap channelCreationOptions;
private final CallbackHandler callbackHandler;
private final long connectionTimeout;
ClusterNodeReconnectHandler(final String host, final int port, final OptionMap connectionCreationOptions, final CallbackHandler callbackHandler, final OptionMap channelCreationOptions, final long connectionTimeoutInMillis) {
this.destinationHost = host;
this.destinationPort = port;
this.connectionCreationOptions = connectionCreationOptions;
this.channelCreationOptions = channelCreationOptions;
this.callbackHandler = callbackHandler;
this.connectionTimeout = connectionTimeoutInMillis;
}
@Override
public void reconnect() throws IOException {
Connection connection = null;
try {
final IoFuture<Connection> futureConnection = NetworkUtil.connect(endpoint, destinationHost, destinationPort, null, connectionCreationOptions, callbackHandler, null);
connection = IoFutureHelper.get(futureConnection, connectionTimeout, TimeUnit.MILLISECONDS);
logger.debug("Successfully reconnected to connection " + connection);
} catch (Exception e) {
logger.debug("Failed to re-connect to " + this.destinationHost + ":" + this.destinationPort, e);
}
if (connection == null) {
return;
}
try {
final EJBReceiver ejbReceiver = new RemotingConnectionEJBReceiver(connection, this, channelCreationOptions);
RemotingConnectionClusterNodeManager.this.clusterContext.registerEJBReceiver(ejbReceiver);
} finally {
// if we successfully re-connected then unregister this ReconnectHandler from the EJBClientContext
RemotingConnectionClusterNodeManager.this.clusterContext.getEJBClientContext().unregisterReconnectHandler(this);
}
}
}
}