private void buildDelegate() {
final PsiManager manager = sourceClass.getManager();
final PsiElementFactory factory =
JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
final CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(manager.getProject());
@NonNls final StringBuilder fieldBuffer = new StringBuilder();
final String delegateVisibility = calculateDelegateVisibility();
if (delegateVisibility.length() > 0) fieldBuffer.append(delegateVisibility).append(' ');
fieldBuffer.append("final ");
final String fullyQualifiedName = getQualifiedName();
fieldBuffer.append(fullyQualifiedName);
if (!typeParams.isEmpty()) {
fieldBuffer.append('<');
for (PsiTypeParameter typeParameter : typeParams) {
fieldBuffer.append(typeParameter.getName());
}
fieldBuffer.append('>');
}
fieldBuffer.append(' ');
fieldBuffer.append(delegateFieldName);
fieldBuffer.append(" = new ").append(fullyQualifiedName);
if (!typeParams.isEmpty()) {
fieldBuffer.append('<');
for (PsiTypeParameter typeParameter : typeParams) {
fieldBuffer.append(typeParameter.getName());
}
fieldBuffer.append('>');
}
fieldBuffer.append('(');
if (requiresBackpointer) {
fieldBuffer.append("this");
}
fieldBuffer.append(");");
try {
final String fieldString = fieldBuffer.toString();
final PsiField field = factory.createFieldFromText(fieldString, sourceClass);
final PsiElement newField = sourceClass.add(field);
codeStyleManager.reformat(
JavaCodeStyleManager.getInstance(myProject).shortenClassReferences(newField));
} catch (IncorrectOperationException e) {
logger.error(e);
}
}
private PsiClass buildClass() {
final PsiManager manager = sourceClass.getManager();
final Project project = sourceClass.getProject();
final ExtractedClassBuilder extractedClassBuilder = new ExtractedClassBuilder();
extractedClassBuilder.setProject(myProject);
extractedClassBuilder.setClassName(newClassName);
extractedClassBuilder.setPackageName(newPackageName);
extractedClassBuilder.setOriginalClassName(sourceClass.getQualifiedName());
extractedClassBuilder.setRequiresBackPointer(requiresBackpointer);
extractedClassBuilder.setExtractAsEnum(enumConstants);
for (PsiField field : fields) {
extractedClassBuilder.addField(field);
}
for (PsiMethod method : methods) {
extractedClassBuilder.addMethod(method);
}
for (PsiClass innerClass : innerClasses) {
extractedClassBuilder.addInnerClass(
innerClass, innerClassesToMakePublic.contains(innerClass));
}
extractedClassBuilder.setTypeArguments(typeParams);
final List<PsiClass> interfaces = calculateInterfacesSupported();
extractedClassBuilder.setInterfaces(interfaces);
if (myGenerateAccessors) {
final NecessaryAccessorsVisitor visitor = checkNecessaryGettersSetters4ExtractedClass();
sourceClass.accept(visitor);
extractedClassBuilder.setFieldsNeedingGetters(visitor.getFieldsNeedingGetter());
extractedClassBuilder.setFieldsNeedingSetters(visitor.getFieldsNeedingSetter());
}
final String classString = extractedClassBuilder.buildBeanClass();
if (extractInnerClass) {
final PsiFileFactory factory = PsiFileFactory.getInstance(project);
final PsiJavaFile newFile =
(PsiJavaFile)
factory.createFileFromText(
newClassName + ".java", JavaFileType.INSTANCE, classString);
final PsiClass psiClass = newFile.getClasses()[0];
if (!psiClass.isEnum()) {
final PsiModifierList modifierList = psiClass.getModifierList();
assert modifierList != null;
modifierList.setModifierProperty(PsiModifier.STATIC, true);
}
final PsiElement addedClass = sourceClass.add(psiClass);
return (PsiClass)
CodeStyleManager.getInstance(manager)
.reformat(
JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedClass));
}
try {
final PsiFile containingFile = sourceClass.getContainingFile();
final PsiDirectory directory;
final PsiDirectory containingDirectory = containingFile.getContainingDirectory();
if (myMoveDestination != null) {
directory = myMoveDestination.getTargetDirectory(containingDirectory);
} else {
final Module module = ModuleUtil.findModuleForPsiElement(containingFile);
assert module != null;
directory =
PackageUtil.findOrCreateDirectoryForPackage(
module, newPackageName, containingDirectory, false, true);
}
if (directory != null) {
final PsiFileFactory factory = PsiFileFactory.getInstance(project);
final PsiFile newFile =
factory.createFileFromText(newClassName + ".java", JavaFileType.INSTANCE, classString);
final PsiElement addedFile = directory.add(newFile);
final CodeStyleManager codeStyleManager =
CodeStyleManager.getInstance(manager.getProject());
final PsiElement shortenedFile =
JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedFile);
return ((PsiJavaFile) codeStyleManager.reformat(shortenedFile)).getClasses()[0];
} else {
return null;
}
} catch (IncorrectOperationException e) {
return null;
}
}
protected void performRefactoring(@NotNull UsageInfo[] usageInfos) {
final PsiClass psiClass = buildClass();
if (psiClass == null) return;
if (delegationRequired) {
buildDelegate();
}
myExtractEnumProcessor.performEnumConstantTypeMigration(usageInfos);
final Set<PsiMember> members = new HashSet<PsiMember>();
for (PsiMethod method : methods) {
final PsiMethod member = psiClass.findMethodBySignature(method, false);
if (member != null) {
members.add(member);
}
}
for (PsiField field : fields) {
final PsiField member = psiClass.findFieldByName(field.getName(), false);
if (member != null) {
members.add(member);
final PsiExpression initializer = member.getInitializer();
if (initializer != null) {
final boolean[] moveInitializerToConstructor = new boolean[1];
initializer.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
super.visitReferenceExpression(expression);
final PsiElement resolved = expression.resolve();
if (resolved instanceof PsiField && !members.contains(resolved)) {
moveInitializerToConstructor[0] = true;
}
}
});
if (moveInitializerToConstructor[0]) {
final PsiElementFactory elementFactory = JavaPsiFacade.getElementFactory(myProject);
PsiMethod[] constructors = psiClass.getConstructors();
if (constructors.length == 0) {
final PsiMethod constructor =
(PsiMethod) elementFactory.createConstructor().setName(psiClass.getName());
constructors = new PsiMethod[] {(PsiMethod) psiClass.add(constructor)};
}
for (PsiMethod constructor : constructors) {
MoveInstanceMembersUtil.moveInitializerToConstructor(
elementFactory, constructor, member);
}
}
}
}
}
if (myGenerateAccessors) {
final NecessaryAccessorsVisitor visitor = checkNecessaryGettersSetters4SourceClass();
for (PsiField field : visitor.getFieldsNeedingGetter()) {
sourceClass.add(GenerateMembersUtil.generateGetterPrototype(field));
}
for (PsiField field : visitor.getFieldsNeedingSetter()) {
sourceClass.add(GenerateMembersUtil.generateSetterPrototype(field));
}
}
super.performRefactoring(usageInfos);
if (myNewVisibility == null) return;
for (PsiMember member : members) {
VisibilityUtil.fixVisibility(UsageViewUtil.toElements(usageInfos), member, myNewVisibility);
}
}