// Copyright 2010 The Apache Software Foundation
//
// 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.apache.tapestry5.internal.transform;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Named;
import org.apache.tapestry5.func.Predicate;
import org.apache.tapestry5.internal.services.ComponentClassCache;
import org.apache.tapestry5.ioc.ObjectLocator;
import org.apache.tapestry5.model.MutableComponentModel;
import org.apache.tapestry5.services.ClassTransformation;
import org.apache.tapestry5.services.ComponentClassTransformWorker;
import org.apache.tapestry5.services.TransformField;
/**
* Processes the combination of {@link javax.inject.Inject} and {@link javax.inject.Named} annotations.
*
* @since 5.3.0
*/
public class InjectNamedWorker implements ComponentClassTransformWorker
{
private final ObjectLocator locator;
private final ComponentClassCache cache;
public InjectNamedWorker(ObjectLocator locator, ComponentClassCache cache)
{
this.locator = locator;
this.cache = cache;
}
@SuppressWarnings("unchecked")
public void transform(ClassTransformation transformation, MutableComponentModel model)
{
List<TransformField> fields = transformation.matchFields(new Predicate<TransformField>()
{
public boolean accept(TransformField field)
{
return field.getAnnotation(Inject.class) != null && field.getAnnotation(Named.class) != null;
}
});
for (TransformField field : fields)
{
Named annotation = field.getAnnotation(Named.class);
field.claim(annotation);
Class fieldType = cache.forName(field.getType());
Object service = locator.getService(annotation.value(), fieldType);
field.inject(service);
}
}
}