/*
* Copyright (C) 2009 Google Inc.
*
* 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.google.inject.testing.guiceberry.controllable;
import com.google.common.collect.Maps;
import com.google.inject.Provider;
import com.google.inject.testing.guiceberry.controllable.IcStrategy;
import java.util.Map;
/**
* The {@link #strategy()} static factory method gives forth the
* canonical {@link IcStrategy}.
*
* <p>This strategy is quite capable, and should likely always be used, as long
* as possible. The one and only constraint is that its internal {@link #map}
* static var needs to be shared between test and server Injector, i.e. running
* in the same JVM and same (or child) ClassLoader.
*
* @author Luiz-Otavio Zorzella
*/
public final class SharedStaticVarIcStrategy {
private static final Map<ControllableId<?>,Object> map = Maps.newHashMap();
public static IcStrategy strategy() {
return new IcStrategy(IcClientStrategyImpl.class, IcServerStrategyImpl.class);
}
@Deprecated
public static IcStrategy buildStrategyCouple() {
return strategy();
}
private static final class IcClientStrategyImpl implements IcStrategy.ClientSupport {
public <T> void setOverride(ControllableId<T> pair, T override) {
map.put(pair, override);
}
public <T> void resetOverride(ControllableId<T> controllableId) {
map.remove(controllableId);
}
}
private static final class IcServerStrategyImpl implements IcStrategy.ServerSupport {
@SuppressWarnings("unchecked")
public <T> T getOverride(
ControllableId<T> controllableId,
Provider<? extends T> delegate) {
if (!map.containsKey(controllableId)) {
throw new IllegalArgumentException(String.format(
"The injection of '%s' is not currently being controlled.",
controllableId.toString()));
}
return (T) map.get(controllableId);
}
public <T> boolean isControlled(ControllableId<T> controllableId) {
return map.containsKey(controllableId);
}
}
}