/*
* 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.inject.AbstractModule;
import com.google.inject.Key;
import com.google.inject.Provider;
import com.google.inject.testing.guiceberry.TestId;
import com.google.inject.testing.guiceberry.controllable.IcStrategy.ServerSupport;
import java.util.Map;
/**
* This internal class is basically what the {@link IcMaster} uses to fullfil
* its {@link IcMaster#buildServerModule(java.util.Collection)} method.
*
* @author Luiz-Otavio Zorzella
* @author Jesse Wilson
*/
final class ControllableInjectionServerModule extends AbstractModule {
private final Map<Key<?>, IcStrategy> rewriter;
public ControllableInjectionServerModule(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(IcServer.class, e.getKey()))
.toProvider(new MyServerProvider(e.getKey(), getProvider(TestId.class),
getProvider(e.getValue().serverSupportClass())));
}
}
private static final class MyServerProvider<T> implements Provider<IcServer<T>> {
private final Key<T> key;
private final Provider<IcStrategy.ServerSupport> serverSupportProvider;
private final Provider<TestId> testIdProvider;
public MyServerProvider(Key<T> key,
Provider<TestId> testIdProvider, Provider<IcStrategy.ServerSupport> serverControllerSupportProvider) {
this.key = key;
this.testIdProvider = testIdProvider;
this.serverSupportProvider = serverControllerSupportProvider;
}
public IcServer<T> get() {
return new IcServer<T>() {
public T getOverride(Provider<? extends T> delegate) {
ControllableId<T> controllableId =
new ControllableId<T>(testIdProvider.get(), key);
ServerSupport serverSupport = serverSupportProvider.get();
if (!serverSupport.isControlled(controllableId)) {
return delegate.get();
}
return serverSupport.getOverride(controllableId, delegate);
}
};
}
}
}