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/**
* Copyright (C) 2006 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.internal;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.inject.Key;
import com.google.inject.internal.InjectorImpl.JitLimitation;
import com.google.inject.spi.Dependency;
import javax.inject.Provider;
/**
* Delegates to a custom factory which is also bound in the injector.
*/
final class BoundProviderFactory<T> extends ProviderInternalFactory<T> implements CreationListener {
private final ProvisionListenerStackCallback<T> provisionCallback;
private final InjectorImpl injector;
final Key<? extends javax.inject.Provider<? extends T>> providerKey;
private InternalFactory<? extends javax.inject.Provider<? extends T>> providerFactory;
BoundProviderFactory(
InjectorImpl injector,
Key<? extends javax.inject.Provider<? extends T>> providerKey,
Object source,
ProvisionListenerStackCallback<T> provisionCallback) {
super(source);
this.provisionCallback = checkNotNull(provisionCallback, "provisionCallback");
this.injector = injector;
this.providerKey = providerKey;
}
public void notify(Errors errors) {
try {
providerFactory = injector.getInternalFactory(providerKey, errors.withSource(source), JitLimitation.NEW_OR_EXISTING_JIT);
} catch (ErrorsException e) {
errors.merge(e.getErrors());
}
}
public T get(Errors errors, InternalContext context, Dependency<?> dependency, boolean linked)
throws ErrorsException {
context.pushState(providerKey, source);
try {
errors = errors.withSource(providerKey);
javax.inject.Provider<? extends T> provider = providerFactory.get(errors, context, dependency, true);
return circularGet(provider, errors, context, dependency, provisionCallback);
} finally {
context.popState();
}
}
@Override
protected T provision(Provider<? extends T> provider, Errors errors, Dependency<?> dependency,
ConstructionContext<T> constructionContext) throws ErrorsException {
try {
return super.provision(provider, errors, dependency, constructionContext);
} catch(RuntimeException userException) {
throw errors.errorInProvider(userException).toException();
}
}
@Override public String toString() {
return providerKey.toString();
}
}
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