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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.plugin.irccommands.command;
import net.java.sip.communicator.impl.protocol.irc.*;
/**
* Implementation of the /nick command. Change local user's nick name.
*
* @author Danny van Heumen
*/
public class Nick implements Command
{
/**
* Index for end of nick command prefix.
*/
private static final int END_OF_COMMAND_PREFIX_INDEX = 6;
/**
* Instance of the IRC connection.
*/
private IrcConnection connection;
/**
* Initialization of the command. Issue nick change.
*
* @param provider the provider instance
* @param connection the connection instance
*/
public Nick(final ProtocolProviderServiceIrcImpl provider,
final IrcConnection connection)
{
if (connection == null)
{
throw new IllegalArgumentException("connection cannot be null");
}
this.connection = connection;
}
/**
* Execute the /nick command. Issue nick change to IRC server.
*
* @param source the source channel/user
* @param line the command message line
*/
@Override
public void execute(final String source, final String line)
{
if (line.length() <= END_OF_COMMAND_PREFIX_INDEX)
{
// no name parameter available, so nothing to do here
throw new IllegalArgumentException("New nick name is missing.");
}
final String part = line.substring(END_OF_COMMAND_PREFIX_INDEX);
final String newNick;
int indexOfSep = part.indexOf(' ');
if (indexOfSep == -1)
{
newNick = part;
}
else
{
newNick = part.substring(0, indexOfSep);
}
if (!newNick.isEmpty())
{
this.connection.getIdentityManager().setNick(newNick);
}
}
/**
* Usage instructions.
*/
@Override
public String help()
{
return "Usage: /nick <new-nick>";
}
}
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