Mercurial > hg > release > thermostat-0.5
view common/core/src/main/java/com/redhat/thermostat/common/cli/CommandRegistryImpl.java @ 937:37c9527f664f
Refactor command class hierarchy
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005343.html
author | Jon VanAlten <jon.vanalten@redhat.com> |
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date | Tue, 29 Jan 2013 00:28:43 -0500 |
parents | ccac9bcabaa0 |
children |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.common.cli; import java.util.ArrayList; import java.util.Collection; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; import com.redhat.thermostat.common.utils.ServiceRegistry; /** * This class mainly wraps around a ServiceRegistry object, handling the additional * non-osgi-specific task of enable/disable of Command objects as they are registered * or unregistered. */ public class CommandRegistryImpl implements CommandRegistry { private BundleContext context; private ServiceRegistry<Command> proxy; private Collection<Command> myRegisteredCommands; public CommandRegistryImpl(BundleContext ctx) { context = ctx; proxy = new ServiceRegistry<Command>(ctx, Command.class.getName()); myRegisteredCommands = new ArrayList<>(); } @Override public void registerCommand(Command cmd) { proxy.registerService(cmd, cmd.getName()); myRegisteredCommands.add(cmd); } @Override public void registerCommands(Iterable<? extends Command> cmds) { for (Command cmd : cmds) { registerCommand(cmd); } } @Override public void unregisterCommands() { proxy.unregisterAll(); } @Override public Command getCommand(String name) { Command command = proxy.getService(name); if (command != null && command instanceof AbstractCommand) { initializeCommandInfo((AbstractCommand) command); } return command; } void initializeCommandInfo(AbstractCommand command) { if (!command.hasCommandInfo()) { @SuppressWarnings("rawtypes") ServiceReference infosRef = context.getServiceReference(CommandInfoSource.class); @SuppressWarnings("unchecked") CommandInfoSource infos = (CommandInfoSource) context.getService(infosRef); command.setCommandInfo(infos.getCommandInfo(command.getName())); context.ungetService(infosRef); } } @Override public Collection<Command> getRegisteredCommands() { return proxy.getRegisteredServices(); } }