/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.server.network.protocol;
import com.orientechnologies.common.concur.OTimeoutException;
import com.orientechnologies.common.log.OLogManager;
import com.orientechnologies.common.thread.OSoftThread;
import com.orientechnologies.orient.core.config.OContextConfiguration;
import com.orientechnologies.orient.enterprise.channel.OChannel;
import com.orientechnologies.orient.server.OServer;
import com.orientechnologies.orient.server.distributed.ODistributedServerManager;
import com.orientechnologies.orient.server.network.OServerNetworkListener;
import java.io.IOException;
import java.net.Socket;
public abstract class ONetworkProtocol extends OSoftThread {
private static final int MAX_RETRIES = 20;
protected OServer server;
public ONetworkProtocol(ThreadGroup group, String name) {
super(group, name);
}
public abstract void config(OServerNetworkListener iListener, OServer iServer, Socket iSocket,
OContextConfiguration iConfiguration) throws IOException;
public abstract String getType();
public abstract int getVersion();
public abstract OChannel getChannel();
public String getListeningAddress() {
final OChannel c = getChannel();
if (c != null)
return c.socket.getLocalAddress().getHostAddress();
return null;
}
public OServer getServer() {
return server;
}
public void waitNodeIsOnline() throws OTimeoutException {
// WAIT THE NODE IS ONLINE AGAIN
final ODistributedServerManager mgr = server.getDistributedManager();
if (mgr != null && mgr.isEnabled() && mgr.isOffline()) {
for (int retry = 0; retry < MAX_RETRIES; ++retry) {
if (mgr != null && mgr.isOffline()) {
// NODE NOT ONLINE YET, REFUSE THE CONNECTION
OLogManager.instance().info(this, "Node is not online yet (status=%s), blocking the command until it's online %d/%d",
mgr.getNodeStatus(), retry + 1, MAX_RETRIES);
pauseCurrentThread(300);
} else
// OK, RETURN
return;
}
// TIMEOUT
throw new OTimeoutException("Cannot execute operation while the node is not online (status=" + mgr.getNodeStatus() + ")");
}
}
}