/*
* 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.impl.DefaultFtpServer;
import org.springframework.context.support.FileSystemXmlApplicationContext;
/**
* This class is the starting point for the FtpServer when it is started using
* the command line mode.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev$, $Date$
*/
public class CommandLine {
/**
* The purpose of this class is to allow the final user to start the
* FtpServer application. Because of that it has only <code>static</code>
* methods and cannot be instanced.
*/
protected CommandLine() {
}
/**
* This method is the FtpServer starting point when running by using the
* command line mode.
*
* @param args
* The first element of this array must specify the kind of
* configuration to be used to start the server.
*/
public static void main(String args[]) {
CommandLine cli = new CommandLine();
try {
// get configuration
FtpServer server = cli.getConfiguration(args);
if (server == null) {
return;
}
// start the server
server.start();
System.out.println("FtpServer started");
// add shutdown hook if possible
cli.addShutdownHook(server);
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* Add shutdown hook.
*/
private void addShutdownHook(final FtpServer engine) {
// create shutdown hook
Runnable shutdownHook = new Runnable() {
public void run() {
System.out.println("Stopping server...");
engine.stop();
}
};
// add shutdown hook
Runtime runtime = Runtime.getRuntime();
runtime.addShutdownHook(new Thread(shutdownHook));
}
/**
* Print the usage message.
*/
protected void usage() {
System.err
.println("Usage: java org.apache.ftpserver.main.CommandLine [OPTION] [CONFIGFILE]");
System.err
.println("Starts FtpServer using the default configuration of the ");
System.err.println("configuration file if provided.");
System.err.println("");
System.err
.println(" --default use the default configuration, ");
System.err
.println(" also used if no command line argument is given ");
System.err.println(" -?, --help print this message");
}
/**
* Get the configuration object.
*/
protected FtpServer getConfiguration(String[] args) throws Exception {
FtpServer server = null;
if (args.length == 0) {
System.out.println("Using default configuration");
server = new FtpServerFactory().createServer();
} else if ((args.length == 1) && args[0].equals("-default")) {
// supported for backwards compatibility, but not documented
System.out
.println("The -default switch is deprecated, please use --default instead");
System.out.println("Using default configuration");
server = new FtpServerFactory().createServer();
} else if ((args.length == 1) && args[0].equals("--default")) {
System.out.println("Using default configuration");
server = new FtpServerFactory().createServer();
} else if ((args.length == 1) && args[0].equals("--help")) {
usage();
} else if ((args.length == 1) && args[0].equals("-?")) {
usage();
} else if (args.length == 1) {
System.out.println("Using XML configuration file " + args[0]
+ "...");
FileSystemXmlApplicationContext ctx = new FileSystemXmlApplicationContext(
args[0]);
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 {
usage();
}
return server;
}
}