/*
* 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.guiceberry.controllable;
import com.google.common.testing.TearDown;
import com.google.common.testing.TearDownAccepter;
import com.google.inject.AbstractModule;
import com.google.inject.Key;
import com.google.inject.Provider;
import com.google.guiceberry.TestId;
import java.util.Map;
/**
* This internal class is basically what the {@link IcMaster} uses to fullfil
* its {@link IcMaster#buildClientModule()} method.
*
* @author Luiz-Otavio Zorzella
* @author Jesse Wilson
*/
final class ControllableInjectionClientModule extends AbstractModule {
private final Map<Key<?>, IcStrategy> rewriter;
public ControllableInjectionClientModule(Map<Key<?>, IcStrategy> rewriter) {
this.rewriter = rewriter;
}
@SuppressWarnings({"unchecked", "rawtypes"})
@Override
protected void configure() {
for (Map.Entry<Key<?>, IcStrategy> e : rewriter.entrySet()) {
bind(IcStrategy.wrap(InjectionController.class, e.getKey()))
.toProvider(new MyClientProvider(
e.getKey(),
getProvider(TestId.class),
getProvider(e.getValue().clientSupportClass()),
getProvider(TearDownAccepter.class)));
}
}
private static final class MyClientProvider<T> implements Provider<InjectionController<T>> {
private final Key<T> key;
private final Provider<IcStrategy.ClientSupport> clientControllerSupportProvider;
private final Provider<TestId> testIdProvider;
private final Provider<TearDownAccepter> tearDownAccepterProvider;
public MyClientProvider(Key<T> key,
Provider<TestId> testIdProvider,
Provider<IcStrategy.ClientSupport> clientControllerSupportProvider,
Provider<TearDownAccepter> tearDownAccepterProvider) {
this.key = key;
this.testIdProvider = testIdProvider;
this.clientControllerSupportProvider = clientControllerSupportProvider;
this.tearDownAccepterProvider = tearDownAccepterProvider;
}
public InjectionController<T> get() {
return new InjectionController<T>() {
public void setOverride(T override) {
if (override == null) {
throw new NullPointerException();
}
final IcStrategy.ClientSupport icClientStrategy =
clientControllerSupportProvider.get();
final ControllableId<T> controllableId =
new ControllableId<T>(testIdProvider.get(), key);
tearDownAccepterProvider.get().addTearDown(new TearDown() {
public void tearDown() throws Exception {
icClientStrategy.resetOverride(controllableId);
}
});
icClientStrategy.setOverride(controllableId, override);
}
public void resetOverride() {
final IcStrategy.ClientSupport icClientStrategy =
clientControllerSupportProvider.get();
final ControllableId<T> controllableId =
new ControllableId<T>(testIdProvider.get(), key);
icClientStrategy.resetOverride(controllableId);
}
};
}
}
}