content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   * Copyright (C) 2016-2020 the AndroidAnnotations project
   *
   * 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.androidannotations.internal.core.handler;
  
  import static com.helger.jcodemodel.JExpr._null;
  
  import javax.lang.model.element.Element;
  import javax.lang.model.element.ElementKind;
  import javax.lang.model.element.TypeElement;
  import javax.lang.model.type.TypeMirror;
  
  import org.androidannotations.AndroidAnnotationsEnvironment;
  import org.androidannotations.ElementValidation;
  import org.androidannotations.annotations.Bean;
  import org.androidannotations.annotations.EBean;
  import org.androidannotations.annotations.NonConfigurationInstance;
  import org.androidannotations.handler.BaseAnnotationHandler;
  import org.androidannotations.handler.MethodInjectionHandler;
  import org.androidannotations.helper.InjectHelper;
  import org.androidannotations.holder.EBeanHolder;
  import org.androidannotations.holder.EComponentHolder;
  
  import com.helger.jcodemodel.AbstractJClass;
  import com.helger.jcodemodel.IJAssignmentTarget;
  import com.helger.jcodemodel.IJStatement;
  import com.helger.jcodemodel.JBlock;
  import com.helger.jcodemodel.JConditional;
  import com.helger.jcodemodel.JInvocation;
  
  public class BeanHandler extends BaseAnnotationHandler<EComponentHolder> implements MethodInjectionHandler<EComponentHolder> {
  
  	private final InjectHelper<EComponentHolder> injectHelper;
  
  	public BeanHandler(AndroidAnnotationsEnvironment environment) {
  		super(Bean.class, environment);
  		injectHelper = new InjectHelper<>(validatorHelper, this);
  	}
  
  	@Override
  	public void validate(Element element, ElementValidation validation) {
  		injectHelper.validate(Bean.class, element, validation);
  		if (!validation.isValid()) {
  			return;
  		}
  
  		validatorHelper.typeOrTargetValueHasAnnotation(EBean.class, element, validation);
  
  		validatorHelper.isNotPrivate(element, validation);
  	}
  
  	@Override
  	public void process(Element element, EComponentHolder holder) {
  		injectHelper.process(element, holder);
  	}
  
  	@Override
  	public JBlock getInvocationBlock(EComponentHolder holder) {
  		return holder.getInitBodyInjectionBlock();
  	}
  
  	@Override
  	public void assignValue(JBlock targetBlock, IJAssignmentTarget fieldRef, EComponentHolder holder, Element element, Element param) {
  		TypeMirror typeMirror = annotationHelper.extractAnnotationClassParameter(element);
  		if (typeMirror == null) {
  			typeMirror = param.asType();
  			typeMirror = getProcessingEnvironment().getTypeUtils().erasure(typeMirror);
  		}
  		String typeQualifiedName = typeMirror.toString();
  		AbstractJClass injectedClass = getJClass(annotationHelper.generatedClassQualifiedNameFromQualifiedName(typeQualifiedName));
  		JInvocation beanInstance = injectedClass.staticInvoke(EBeanHolder.GET_INSTANCE_METHOD_NAME).arg(holder.getContextRef());
  
  		TypeElement declaredEBean = getProcessingEnvironment().getElementUtils().getTypeElement(typeQualifiedName);
  		if (declaredEBean != null) {
  			EBean annotation = declaredEBean.getAnnotation(EBean.class);
  			if (annotation.scope() != EBean.Scope.Singleton && annotation.scope() != EBean.Scope.Activity) {
  				beanInstance.arg(holder.getRootFragmentRef());
  			}
  		}
  
  		IJStatement assignment = fieldRef.assign(beanInstance);
  		if (param.getKind() == ElementKind.FIELD) {
  			boolean hasNonConfigurationInstanceAnnotation = element.getAnnotation(NonConfigurationInstance.class) != null;
  			if (hasNonConfigurationInstanceAnnotation) {
  				JConditional conditional = targetBlock._if(fieldRef.eq(_null()));
  				conditional._then().add(assignment);
  				assignment = conditional;
  			}
  		}
  
  		targetBlock.add(assignment);
  	}
  
  	@Override
  	public void validateEnclosingElement(Element element, ElementValidation valid) {
  		validatorHelper.enclosingElementHasEnhancedComponentAnnotation(element, valid);
  	}
  }
  