package act.inject;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* 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.
* #L%
*/
import act.Destroyable;
import act.app.App;
import act.app.AppClassLoader;
import act.app.AppServiceBase;
import act.app.event.AppEventId;
import act.util.ClassNode;
import act.util.SubClassFinder;
import org.osgl.$;
import org.osgl.Osgl;
import org.osgl.inject.BeanSpec;
import org.osgl.util.C;
import javax.enterprise.context.ApplicationScoped;
import java.util.List;
import java.util.Map;
public abstract class DependencyInjectorBase<DI extends DependencyInjectorBase<DI>> extends AppServiceBase<DI> implements DependencyInjector<DI> {
protected Map<Class, DependencyInjectionBinder> binders = C.newMap();
protected Map<Class, List<DependencyInjectionListener>> listeners = C.newMap();
public DependencyInjectorBase(App app) {
this(app, false);
}
protected DependencyInjectorBase(App app, boolean noRegister) {
super(app, true);
if (!noRegister) {
app.injector(this);
}
}
@Override
protected void releaseResources() {
Destroyable.Util.tryDestroyAll(binders.values(), ApplicationScoped.class);
binders.clear();
}
@Override
public synchronized void registerDiBinder(DependencyInjectionBinder binder) {
binders.put(binder.targetClass(), binder);
ActProviders.addProvidedType(binder.targetClass());
}
@Override
public synchronized void registerDiListener(DependencyInjectionListener listener) {
Class[] targets = listener.listenTo();
for (Class c : targets) {
List<DependencyInjectionListener> list = listeners.get(c);
if (null == list) {
final List<DependencyInjectionListener> list0 = C.newList();
list = list0;
final AppClassLoader cl = app().classLoader();
ClassNode node = cl.classInfoRepository().node(c.getName());
node.visitPublicNotAbstractTreeNodes(new $.Visitor<ClassNode>() {
@Override
public void visit(ClassNode classNode) throws Osgl.Break {
listeners.put($.classForName(classNode.name(), cl), list0);
}
});
listeners.put(c, list);
}
list.add(listener);
}
}
@Override
public void fireInjectedEvent(Object bean, BeanSpec spec) {
Class c = spec.rawType();
List<DependencyInjectionListener> list = listeners.get(c);
if (null != list) {
for (DependencyInjectionListener listener : list) {
listener.onInjection(bean, spec);
}
}
}
@SubClassFinder(value = DependencyInjectionListener.class, callOn = AppEventId.DEPENDENCY_INJECTOR_PROVISIONED)
public static void discoverDiListener(final Class<? extends DependencyInjectionListener> target) {
App app = App.instance();
DependencyInjector di = app.injector();
di.registerDiListener(app.getInstance(target));
}
}