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144 lines (119 loc) · 4.89 KB
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/**
* Copyright (C) 2010-2012 eBusiness Information, Excilys Group
*
* 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.processing;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.TypeElement;
import org.androidannotations.model.AnnotationElements;
import org.androidannotations.model.AnnotationElements.AnnotatedAndRootElements;
import com.sun.codemodel.JCodeModel;
public class ModelProcessor {
public static class ProcessResult {
public final JCodeModel codeModel;
public final OriginatingElementsHolder originatingElementsHolder;
public final Set<Class<?>> apiClassesToGenerate;
public ProcessResult(//
JCodeModel codeModel, //
OriginatingElementsHolder originatingElementsHolder, //
Set<Class<?>> apiClassesToGenerate) {
this.codeModel = codeModel;
this.originatingElementsHolder = originatingElementsHolder;
this.apiClassesToGenerate = apiClassesToGenerate;
}
}
private final List<DecoratingElementProcessor> enclosedProcessors = new ArrayList<DecoratingElementProcessor>();
private final List<GeneratingElementProcessor> typeProcessors = new ArrayList<GeneratingElementProcessor>();
public void register(DecoratingElementProcessor processor) {
enclosedProcessors.add(processor);
}
public void register(GeneratingElementProcessor processor) {
typeProcessors.add(processor);
}
public ProcessResult process(AnnotationElements validatedModel) throws Exception {
JCodeModel codeModel = new JCodeModel();
EBeansHolder eBeansHolder = new EBeansHolder(codeModel);
for (GeneratingElementProcessor processor : typeProcessors) {
Class<? extends Annotation> target = processor.getTarget();
Set<? extends Element> annotatedElements = validatedModel.getRootAnnotatedElements(target.getName());
for (Element annotatedElement : annotatedElements) {
/*
* We do not generate code for abstract classes, because the
* generated classes are final anyway (we do not want anyone to
* extend them).
*/
if (!isAbstractClass(annotatedElement)) {
processor.process(annotatedElement, codeModel, eBeansHolder);
}
}
/*
* We currently do not take into account class annotations from
* ancestors. We should careful design the priority rules first.
*/
}
for (DecoratingElementProcessor processor : enclosedProcessors) {
Class<? extends Annotation> target = processor.getTarget();
Set<? extends Element> rootAnnotatedElements = validatedModel.getRootAnnotatedElements(target.getName());
for (Element annotatedElement : rootAnnotatedElements) {
Element enclosingElement;
if (annotatedElement instanceof TypeElement) {
enclosingElement = annotatedElement;
} else {
enclosingElement = annotatedElement.getEnclosingElement();
}
/*
* We do not generate code for elements belonging to abstract
* classes, because the generated classes are final anyway
*/
if (!isAbstractClass(enclosingElement)) {
EBeanHolder holder = eBeansHolder.getEBeanHolder(enclosingElement);
processor.process(annotatedElement, codeModel, holder);
}
}
/*
* For ancestors, the processor manipulates the annotated elements,
* but uses the holder for the root element
*/
Set<AnnotatedAndRootElements> ancestorAnnotatedElements = validatedModel.getAncestorAnnotatedElements(target.getName());
for (AnnotatedAndRootElements elements : ancestorAnnotatedElements) {
EBeanHolder holder = eBeansHolder.getEBeanHolder(elements.rootTypeElement);
/*
* Annotations coming from ancestors may be applied to root
* elements that are not validated, and therefore not available.
*/
if (holder != null) {
processor.process(elements.annotatedElement, codeModel, holder);
}
}
}
return new ProcessResult(//
codeModel, //
eBeansHolder.getOriginatingElementsHolder(), //
eBeansHolder.getApiClassesToGenerate());
}
private boolean isAbstractClass(Element annotatedElement) {
if (annotatedElement instanceof TypeElement) {
TypeElement typeElement = (TypeElement) annotatedElement;
return typeElement.getKind() == ElementKind.CLASS && typeElement.getModifiers().contains(Modifier.ABSTRACT);
} else {
return false;
}
}
}