/*
* Copyright 2014, The Sporting Exchange Limited
*
* 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 com.betfair.cougar.core.api;
import org.springframework.util.Assert;
/**
* A stateless (or even anonymous) bean which registers one or more {@link GateListener}
* instances with a given {@link CougarStartingGate}. Use these to save listeners having to
* register themselves programmatically.
* <p>
* You can control ordering of listeners in Spring config by having different registerers
* {@code depend-on} each other.
* <p>
* TODO think of a better name than 'registererererer'
*/
public class GateRegisterer {
/**
* Construct with one or more listeners.
* <p>
* <strong>A note on wiring</strong>: you can pass a constructor-arg with a {@code list} of
* listeners, or a single listener, but you can't init with a (comma-separated) array.
*
* @param gate
* @param listeners listeners to register with the gate (see note about wiring, above)
*/
public GateRegisterer(CougarStartingGate gate, GateListener... listeners) {
Assert.notEmpty(listeners, "GateRegisterer has no listeners.");
Assert.notNull(gate, "GateRegisterer has not had a CougarStartingGate set.");
for (GateListener listener : listeners) {
gate.registerStartingListener(listener);
}
}
}