org.apacheextras.camel.component.virtualbox.command.VirtualBoxCommandHandlersManager Maven / Gradle / Ivy
/**************************************************************************************
https://camel-extra.github.io
This program 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 3
of the License, or (at your option) any later version.
This program 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 program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
http://www.gnu.org/licenses/lgpl-3.0-standalone.html
***************************************************************************************/
package org.apacheextras.camel.component.virtualbox.command;
import org.apache.camel.Exchange;
import java.util.HashMap;
import java.util.Map;
public class VirtualBoxCommandHandlersManager {
private final Map, VirtualBoxCommandHandler> commandHandlers;
public VirtualBoxCommandHandlersManager(Iterable> commandHandlers) {
this.commandHandlers = new HashMap, VirtualBoxCommandHandler>();
for (VirtualBoxCommandHandler commandHandler : commandHandlers) {
this.commandHandlers.put(commandHandler.commandClass(), commandHandler);
}
}
public , R> R handleCommand(C command) {
@SuppressWarnings("unchecked")
VirtualBoxCommandHandler handler = (VirtualBoxCommandHandler)resolveCommandHandler(command.getClass());
return handler.handle(command);
}
public T handleCommand(Exchange exchange, String defaultMachineId) {
Object body = exchange.getIn().getBody();
if (VirtualBoxCommand.class.isAssignableFrom(body.getClass())) {
@SuppressWarnings("unchecked")
VirtualBoxCommand command = (VirtualBoxCommand)body;
return handleCommand(command);
} else {
String commandName = exchange.getIn().getBody(String.class);
String commandClassName = getClass().getPackage().getName() + ".handlers." + commandName + "Command";
Class commandClass = exchange.getContext().getClassResolver().resolveClass(commandClassName);
VirtualBoxCommandHandler handler = resolveCommandHandler(commandClass);
@SuppressWarnings("unchecked")
VirtualBoxCommand command = (VirtualBoxCommand)handler.resolveCommand(exchange, defaultMachineId);
return handleCommand(command);
}
}
private VirtualBoxCommandHandler resolveCommandHandler(Class commandClass) {
VirtualBoxCommandHandler commandHandler = commandHandlers.get(commandClass);
if (commandHandler == null) {
throw new NoHandlerRegisteredException(commandClass);
}
return commandHandler;
}
}