com.google.inject.internal.ProviderToInternalFactoryAdapter Maven / Gradle / Ivy
/**
* 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 com.google.inject.Provider;
import com.google.inject.ProvisionException;
import com.google.inject.spi.Dependency;
/**
* @author [email protected] (Bob Lee)
*/
final class ProviderToInternalFactoryAdapter implements Provider {
private final InjectorImpl injector;
private final InternalFactory internalFactory;
public ProviderToInternalFactoryAdapter(InjectorImpl injector,
InternalFactory internalFactory) {
this.injector = injector;
this.internalFactory = internalFactory;
}
public T get() {
final Errors errors = new Errors();
try {
T t = injector.callInContext(new ContextualCallable() {
public T call(InternalContext context) throws ErrorsException {
Dependency dependency = context.getDependency();
// Always pretend that we are a linked binding, to support
// scoping implicit bindings. If we are not actually a linked
// binding, we'll fail properly elsewhere in the chain.
return internalFactory.get(errors, context, dependency, true);
}
});
errors.throwIfNewErrors(0);
return t;
} catch (ErrorsException e) {
throw new ProvisionException(errors.merge(e.getErrors()).getMessages());
}
}
@Override public String toString() {
return internalFactory.toString();
}
}