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/*
* Copyright 2015 Open Networking Laboratory
*
* 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 org.onosproject.net.driver;
import static com.google.common.base.Preconditions.checkState;
/**
* Base implementation of device driver handler behaviour.
*/
public class AbstractHandlerBehaviour
extends AbstractBehaviour implements HandlerBehaviour {
private DriverHandler handler;
@Override
public DriverHandler handler() {
return handler;
}
@Override
public void setHandler(DriverHandler handler) {
checkState(this.handler == null, "Driver handler already set");
this.handler = handler;
}
}
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