package de.plushnikov.intellij.plugin.processor.clazz;
import com.intellij.psi.PsiAnnotation;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiField;
import com.intellij.psi.PsiMethod;
import com.intellij.psi.PsiModifier;
import com.intellij.psi.PsiModifierList;
import com.intellij.psi.PsiType;
import de.plushnikov.intellij.plugin.problem.ProblemBuilder;
import de.plushnikov.intellij.plugin.processor.LombokPsiElementUsage;
import de.plushnikov.intellij.plugin.processor.field.SetterFieldProcessor;
import de.plushnikov.intellij.plugin.thirdparty.LombokUtils;
import de.plushnikov.intellij.plugin.util.LombokProcessorUtil;
import de.plushnikov.intellij.plugin.util.PsiAnnotationSearchUtil;
import de.plushnikov.intellij.plugin.util.PsiClassUtil;
import de.plushnikov.intellij.plugin.util.PsiMethodUtil;
import lombok.Setter;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* Inspect and validate @Setter lombok annotation on a class
* Creates setter methods for fields of this class
*
* @author Plushnikov Michail
*/
public class SetterProcessor extends AbstractClassProcessor {
private final SetterFieldProcessor fieldProcessor;
public SetterProcessor(SetterFieldProcessor fieldProcessor) {
super(PsiMethod.class, Setter.class);
this.fieldProcessor = fieldProcessor;
}
@Override
protected boolean validate(@NotNull PsiAnnotation psiAnnotation, @NotNull PsiClass psiClass, @NotNull ProblemBuilder builder) {
return validateAnnotationOnRightType(psiAnnotation, psiClass, builder) && validateVisibility(psiAnnotation);
}
private boolean validateAnnotationOnRightType(@NotNull PsiAnnotation psiAnnotation, @NotNull PsiClass psiClass, @NotNull ProblemBuilder builder) {
boolean result = true;
if (psiClass.isAnnotationType() || psiClass.isInterface() || psiClass.isEnum()) {
builder.addError("'@%s' is only supported on a class or field type", psiAnnotation.getQualifiedName());
result = false;
}
return result;
}
private boolean validateVisibility(@NotNull PsiAnnotation psiAnnotation) {
final String methodVisibility = LombokProcessorUtil.getMethodModifier(psiAnnotation);
return null != methodVisibility;
}
protected void generatePsiElements(@NotNull PsiClass psiClass, @NotNull PsiAnnotation psiAnnotation, @NotNull List<? super PsiElement> target) {
final String methodVisibility = LombokProcessorUtil.getMethodModifier(psiAnnotation);
if (methodVisibility != null) {
target.addAll(createFieldSetters(psiClass, methodVisibility));
}
}
public Collection<PsiMethod> createFieldSetters(@NotNull PsiClass psiClass, @NotNull String methodModifier) {
Collection<PsiMethod> result = new ArrayList<PsiMethod>();
final Collection<PsiField> setterFields = filterSetterFields(psiClass);
for (PsiField setterField : setterFields) {
result.add(fieldProcessor.createSetterMethod(setterField, psiClass, methodModifier));
}
return result;
}
@NotNull
private Collection<PsiField> filterSetterFields(@NotNull PsiClass psiClass) {
final Collection<PsiMethod> classMethods = PsiClassUtil.collectClassMethodsIntern(psiClass);
filterToleratedElements(classMethods);
final Collection<PsiField> setterFields = new ArrayList<PsiField>();
for (PsiField psiField : psiClass.getFields()) {
boolean createSetter = true;
PsiModifierList modifierList = psiField.getModifierList();
if (null != modifierList) {
//Skip final fields.
createSetter = !modifierList.hasModifierProperty(PsiModifier.FINAL);
//Skip static fields.
createSetter &= !modifierList.hasModifierProperty(PsiModifier.STATIC);
//Skip fields having Setter annotation already
createSetter &= PsiAnnotationSearchUtil.isNotAnnotatedWith(psiField, fieldProcessor.getSupportedAnnotationClasses());
//Skip fields that start with $
createSetter &= !psiField.getName().startsWith(LombokUtils.LOMBOK_INTERN_FIELD_MARKER);
//Skip fields if a method with same name already exists
final Collection<String> methodNames = fieldProcessor.getAllSetterNames(psiField, PsiType.BOOLEAN.equals(psiField.getType()));
for (String methodName : methodNames) {
createSetter &= !PsiMethodUtil.hasSimilarMethod(classMethods, methodName, 1);
}
}
if (createSetter) {
setterFields.add(psiField);
}
}
return setterFields;
}
@Override
public LombokPsiElementUsage checkFieldUsage(@NotNull PsiField psiField, @NotNull PsiAnnotation psiAnnotation) {
final PsiClass containingClass = psiField.getContainingClass();
if (null != containingClass) {
if (PsiClassUtil.getNames(filterSetterFields(containingClass)).contains(psiField.getName())) {
return LombokPsiElementUsage.WRITE;
}
}
return LombokPsiElementUsage.NONE;
}
}