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SpringCommandBus.java
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SpringCommandBus.java
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/**
* MIT License
*
* Copyright (c) 2017 Cloudogu GmbH
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.cloudogu.cb.spring;
import com.cloudogu.cb.Command;
import com.cloudogu.cb.CommandBus;
import com.cloudogu.cb.CommandHandler;
import org.springframework.beans.factory.annotation.Autowired;
/**
* Spring backed Command-Bus.
*/
public class SpringCommandBus implements CommandBus {
private final Registry registry;
/**
* Creates a new instance with the given registry.
*
* @param registry registry
*/
@Autowired
public SpringCommandBus(Registry registry) {
this.registry = registry;
}
@Override
public <R, C extends Command<R>> R execute(C command) {
CommandHandler<R, C> commandHandler = (CommandHandler<R, C>) registry.get(command.getClass());
return commandHandler.handle(command);
}
}