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Elasticsearch subproject :server
/*
* Copyright (C) 2008 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 org.elasticsearch.common.inject.internal;
import com.google.common.collect.ImmutableSet;
import org.elasticsearch.common.inject.*;
import org.elasticsearch.common.inject.binder.AnnotatedBindingBuilder;
import org.elasticsearch.common.inject.spi.Element;
import org.elasticsearch.common.inject.spi.InjectionPoint;
import org.elasticsearch.common.inject.spi.Message;
import java.lang.annotation.Annotation;
import java.util.List;
import java.util.Set;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Bind a non-constant key.
*
* @author [email protected] (Jesse Wilson)
*/
public class BindingBuilder extends AbstractBindingBuilder
implements AnnotatedBindingBuilder {
public BindingBuilder(Binder binder, List elements, Object source, Key key) {
super(binder, elements, source, key);
}
@Override
public BindingBuilder annotatedWith(Class annotationType) {
annotatedWithInternal(annotationType);
return this;
}
@Override
public BindingBuilder annotatedWith(Annotation annotation) {
annotatedWithInternal(annotation);
return this;
}
@Override
public BindingBuilder to(Class implementation) {
return to(Key.get(implementation));
}
@Override
public BindingBuilder to(TypeLiteral implementation) {
return to(Key.get(implementation));
}
@Override
public BindingBuilder to(Key linkedKey) {
checkNotNull(linkedKey, "linkedKey");
checkNotTargetted();
BindingImpl base = getBinding();
setBinding(new LinkedBindingImpl<>(
base.getSource(), base.getKey(), base.getScoping(), linkedKey));
return this;
}
@Override
public void toInstance(T instance) {
checkNotTargetted();
// lookup the injection points, adding any errors to the binder's errors list
Set injectionPoints;
if (instance != null) {
try {
injectionPoints = InjectionPoint.forInstanceMethodsAndFields(instance.getClass());
} catch (ConfigurationException e) {
for (Message message : e.getErrorMessages()) {
binder.addError(message);
}
injectionPoints = e.getPartialValue();
}
} else {
binder.addError(BINDING_TO_NULL);
injectionPoints = ImmutableSet.of();
}
BindingImpl base = getBinding();
setBinding(new InstanceBindingImpl<>(
base.getSource(), base.getKey(), base.getScoping(), injectionPoints, instance));
}
@Override
public BindingBuilder toProvider(Provider provider) {
checkNotNull(provider, "provider");
checkNotTargetted();
// lookup the injection points, adding any errors to the binder's errors list
Set injectionPoints;
try {
injectionPoints = InjectionPoint.forInstanceMethodsAndFields(provider.getClass());
} catch (ConfigurationException e) {
for (Message message : e.getErrorMessages()) {
binder.addError(message);
}
injectionPoints = e.getPartialValue();
}
BindingImpl base = getBinding();
setBinding(new ProviderInstanceBindingImpl<>(
base.getSource(), base.getKey(), base.getScoping(), injectionPoints, provider));
return this;
}
@Override
public BindingBuilder toProvider(Class> providerType) {
return toProvider(Key.get(providerType));
}
@Override
public BindingBuilder toProvider(Key> providerKey) {
checkNotNull(providerKey, "providerKey");
checkNotTargetted();
BindingImpl base = getBinding();
setBinding(new LinkedProviderBindingImpl<>(
base.getSource(), base.getKey(), base.getScoping(), providerKey));
return this;
}
@Override
public String toString() {
return "BindingBuilder<" + getBinding().getKey().getTypeLiteral() + ">";
}
}