/*
* Copyright 2013 The authors
* 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 com.intellij.struts2.annotators;
import com.intellij.codeInsight.AnnotationUtil;
import com.intellij.codeInsight.daemon.ImplicitUsageProvider;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import com.intellij.psi.util.InheritanceUtil;
import com.intellij.struts2.StrutsConstants;
import com.intellij.struts2.model.jam.convention.StrutsConventionConstants;
import org.jetbrains.annotations.Nullable;
/**
* @author Yann Cébron
*/
public class StrutsConventionImplicitUsageProvider implements ImplicitUsageProvider {
@Override
public boolean isImplicitUsage(PsiElement element) {
if (element instanceof PsiClass) {
return isConventionActionClass((PsiClass)element);
}
if (element instanceof PsiMethod) {
PsiMethod psiMethod = (PsiMethod)element;
if (!checkMethod(psiMethod)) {
return false;
}
return isAnnotatedWithAction(psiMethod) ||
isConventionActionClass(psiMethod.getContainingClass());
}
return false;
}
@Override
public boolean isImplicitRead(PsiElement element) {
return false;
}
@Override
public boolean isImplicitWrite(PsiElement element) {
return false;
}
private static boolean checkMethod(PsiMethod psiMethod) {
return psiMethod.hasModifierProperty(PsiModifier.PUBLIC) &&
!psiMethod.isConstructor() &&
!psiMethod.hasModifierProperty(PsiModifier.STATIC) &&
!psiMethod.hasModifierProperty(PsiModifier.ABSTRACT);
}
private static boolean isAnnotatedWithAction(PsiModifierListOwner psiModifierListOwner) {
return AnnotationUtil.isAnnotated(psiModifierListOwner, StrutsConventionConstants.ACTION, false);
}
private static boolean isConventionActionClass(@Nullable PsiClass psiClass) {
if (psiClass == null ||
psiClass.isInterface() ||
psiClass.isEnum() ||
psiClass.isAnnotationType() ||
!psiClass.hasModifierProperty(PsiModifier.PUBLIC) ||
psiClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
return false;
}
if (isAnnotatedWithAction(psiClass)) {
return true;
}
if (AnnotationUtil.isAnnotated(psiClass, StrutsConventionConstants.ACTIONS, false)) {
return true;
}
if (!isConventionPluginPresent(psiClass)) {
return false;
}
if (StringUtil.endsWith(psiClass.getName(), "Action")) {
return true;
}
return InheritanceUtil.isInheritor(psiClass, StrutsConstants.XWORK_ACTION_CLASS);
}
private static boolean isConventionPluginPresent(PsiElement element) {
final PsiClass conventionService = JavaPsiFacade.getInstance(element.getProject()).
findClass(StrutsConventionConstants.CONVENTIONS_SERVICE, element.getResolveScope());
return conventionService != null;
}
}