org.jboss.as.cli.CommandRegistry Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.cli;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
*
* @author Alexey Loubyansky
*/
public class CommandRegistry {
private final Map handlers = new HashMap();
private final Set tabCompletionCommands = new HashSet();
public void registerHandler(CommandHandler handler, String... names) {
registerHandler(handler, true, names);
}
public void registerHandler(CommandHandler handler, boolean tabComplete, String... names) {
for(String name : names) {
CommandHandler previous = handlers.put(name, handler);
if(previous != null)
throw new IllegalStateException("Duplicate command name '" + name + "'. Handlers: " + previous + ", " + handler);
}
if(tabComplete) {
tabCompletionCommands.add(names[0]);
}
}
public Set getTabCompletionCommands() {
return tabCompletionCommands;
}
public CommandHandler getCommandHandler(String command) {
return handlers.get(command);
}
public CommandHandler remove(String cmdName) {
if(cmdName == null) {
throw new IllegalArgumentException();
}
CommandHandler handler = handlers.remove(cmdName);
if(handler != null) {
tabCompletionCommands.remove(cmdName);
}
return handler;
}
}