/*
* Copyright 2011-2014 the original author or authors.
*
* Licensed 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 pl.com.bottega.cqrs.command.impl;
import javax.inject.Inject;
import org.springframework.stereotype.Component;
import pl.com.bottega.cqrs.annotations.Command;
import pl.com.bottega.cqrs.command.Gate;
@Component
public class StandardGate implements Gate {
@Inject
private RunEnvironment runEnvironment;
private GateHistory gateHistory = new GateHistory();
/* (non-Javadoc)
* @see pl.com.bottega.cqrs.command.impl.Gate#dispatch(java.lang.Object)
*/
@Override
public Object dispatch(Object command){
if (! gateHistory.register(command)){
//TODO log.info(duplicate)
return null;//skip duplicate
}
if (isAsynchronous(command)){
//TODO add to the queue. Queue should send this command to the RunEnvironment
return null;
}
return runEnvironment.run(command);
}
/**
* @param command
* @return
*/
private boolean isAsynchronous(Object command) {
if (! command.getClass().isAnnotationPresent(Command.class))
return false;
Command commandAnnotation = command.getClass().getAnnotation(Command.class);
return commandAnnotation.asynchronous();
}
}