/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.ftpserver.main;
import org.apache.ftpserver.FtpServer;
import org.apache.ftpserver.FtpServerFactory;
import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.impl.DefaultFtpServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.support.FileSystemXmlApplicationContext;
/**
* Invokes FtpServer as a daemon, running in the background. Used for example
* for the Windows service.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev$, $Date$
*/
public class Daemon {
private static final Logger LOG = LoggerFactory.getLogger(Daemon.class);
private static FtpServer server;
private static Object lock = new Object();
/**
* Main entry point for the daemon
* @param args The arguments
* @throws Exception
*/
public static void main(String[] args) throws Exception {
try {
if (server == null) {
// get configuration
server = getConfiguration(args);
if (server == null) {
LOG.error("No configuration provided");
throw new FtpException("No configuration provided");
}
}
String command = "start";
if (args != null && args.length > 0) {
command = args[0];
}
if (command.equals("start")) {
LOG.info("Starting FTP server daemon");
server.start();
synchronized (lock) {
lock.wait();
}
} else if (command.equals("stop")) {
synchronized (lock) {
lock.notify();
}
LOG.info("Stopping FTP server daemon");
server.stop();
}
} catch (Throwable t) {
LOG.error("Daemon error", t);
}
}
/**
* Get the configuration object.
*/
private static FtpServer getConfiguration(String[] args) throws Exception {
FtpServer server = null;
if (args == null || args.length < 2) {
LOG.info("Using default configuration....");
server = new FtpServerFactory().createServer();
} else if ((args.length == 2) && args[1].equals("-default")) {
// supported for backwards compatibility, but not documented
System.out
.println("The -default switch is deprecated, please use --default instead");
LOG.info("Using default configuration....");
server = new FtpServerFactory().createServer();
} else if ((args.length == 2) && args[1].equals("--default")) {
LOG.info("Using default configuration....");
server = new FtpServerFactory().createServer();
} else if (args.length == 2) {
LOG.info("Using xml configuration file " + args[1] + "...");
FileSystemXmlApplicationContext ctx = new FileSystemXmlApplicationContext(
args[1]);
if (ctx.containsBean("server")) {
server = (FtpServer) ctx.getBean("server");
} else {
String[] beanNames = ctx.getBeanNamesForType(FtpServer.class);
if (beanNames.length == 1) {
server = (FtpServer) ctx.getBean(beanNames[0]);
} else if (beanNames.length > 1) {
System.out
.println("Using the first server defined in the configuration, named "
+ beanNames[0]);
server = (FtpServer) ctx.getBean(beanNames[0]);
} else {
System.err
.println("XML configuration does not contain a server configuration");
}
}
} else {
throw new FtpException("Invalid configuration option");
}
return server;
}
}