public void handle(
final AccessLevel level,
final Class<? extends java.lang.annotation.Annotation> annotationType) {
LOMBOK_NODE_TYPE mayBeField = annotationNode.up();
if (mayBeField == null) return;
TYPE_TYPE type = typeOf(annotationNode, ast);
List<FIELD_TYPE> fields = new ArrayList<FIELD_TYPE>();
if (mayBeField.getKind() == Kind.FIELD) {
for (LOMBOK_NODE_TYPE node : annotationNode.upFromAnnotationToFields()) {
fields.add(fieldOf(node, ast));
}
} else if (mayBeField.getKind() == Kind.TYPE) {
for (FIELD_TYPE field : type.fields()) {
if (!field.annotations(SETTER_PATTERN).isEmpty()) continue;
if (field.name().startsWith("$")) continue;
if (field.isFinal()) continue;
if (field.isStatic()) continue;
fields.add(field);
}
} else {
annotationNode.addError(canBeUsedOnClassAndFieldOnly(annotationType));
return;
}
generateSetter(type, fields, level);
}
private void generateSetter(
final TYPE_TYPE type,
final List<FIELD_TYPE> fields,
final AccessLevel level,
final boolean vetoable,
final boolean throwVetoException) {
if (!fields.isEmpty()) {
if (!hasAllPropertyChangeMethods(type)) {
generatePropertyChangeSupportFields(type);
generateGetPropertySupportMethod(type);
generatePropertyChangeListenerMethods(type);
generateFirePropertyChangeMethod(type);
}
if (vetoable && !hasAllVetoableChangeMethods(type)) {
generateVetoableChangeSupportFields(type);
generateGetVetoableSupportMethod(type);
generateVetoableChangeListenerMethods(type);
generateFireVetoableChangeMethod(type);
}
}
for (FIELD_TYPE field : fields) {
String propertyNameFieldName = "PROP_" + camelCaseToConstant(field.filteredName());
generatePropertyNameConstant(type, field, propertyNameFieldName);
generateSetter(type, field, level, vetoable, throwVetoException, propertyNameFieldName);
}
}
private void generateSetter(
final TYPE_TYPE type, final List<FIELD_TYPE> fields, final AccessLevel level) {
for (FIELD_TYPE field : fields) {
String propertyNameFieldName = "PROP_" + camelCaseToConstant(field.name());
generatePropertyNameConstant(type, field, propertyNameFieldName);
generateSetter(type, field, level, propertyNameFieldName);
}
}
private void generateSetter(
final TYPE_TYPE type,
final FIELD_TYPE field,
final AccessLevel level,
final boolean vetoable,
final boolean throwVetoException,
final String propertyNameFieldName) {
String fieldName = field.filteredName();
boolean isBoolean = field.isOfType("boolean");
String setterName =
toSetterName(field.getAnnotationValue(Accessors.class), field.name(), isBoolean);
if (type.hasMethod(setterName, field.type())) return;
String oldValueName = OLD_VALUE_VARIABLE_NAME;
List<lombok.ast.Annotation> nonNulls = field.annotations(TransformationsUtil.NON_NULL_PATTERN);
MethodDecl methodDecl =
MethodDecl(Type("void"), setterName)
.withAccessLevel(level)
.withArgument(Arg(field.type(), fieldName).withAnnotations(nonNulls));
if (!nonNulls.isEmpty() && !field.isPrimitive()) {
methodDecl.withStatement(
If(Equal(Name(fieldName), Null()))
.Then(Throw(New(Type(NullPointerException.class)).withArgument(String(fieldName)))));
}
methodDecl.withStatement(
LocalDecl(field.type(), oldValueName).makeFinal().withInitialization(Field(fieldName)));
if (vetoable) {
if (throwVetoException) {
methodDecl.withThrownException(Type(PropertyVetoException.class));
methodDecl.withStatement(
Call(FIRE_VETOABLE_CHANGE_METHOD_NAME) //
.withArgument(Name(propertyNameFieldName))
.withArgument(Name(oldValueName))
.withArgument(Name(fieldName)));
} else {
methodDecl.withStatement(
Try(Block()
.withStatement(
Call(FIRE_VETOABLE_CHANGE_METHOD_NAME) //
.withArgument(Name(propertyNameFieldName))
.withArgument(Name(oldValueName))
.withArgument(Name(fieldName)))) //
.Catch(
Arg(Type(PropertyVetoException.class), E_VALUE_VARIABLE_NAME),
Block().withStatement(Return())));
}
}
methodDecl
.withStatement(Assign(Field(fieldName), Name(fieldName))) //
.withStatement(
Call(FIRE_PROPERTY_CHANGE_METHOD_NAME) //
.withArgument(Name(propertyNameFieldName))
.withArgument(Name(oldValueName))
.withArgument(Name(fieldName)));
type.editor().injectMethod(methodDecl);
}
private void generatePropertyNameConstant(
final TYPE_TYPE type, final FIELD_TYPE field, final String propertyNameFieldName) {
String propertyName = field.name();
if (type.hasField(propertyNameFieldName)) return;
type.injectField(
FieldDecl(Type(String.class), propertyNameFieldName)
.makePublic()
.makeStatic()
.makeFinal() //
.withInitialization(String(propertyName)));
}
private void generateSetter(
final TYPE_TYPE type,
final FIELD_TYPE field,
final AccessLevel level,
final String propertyNameFieldName) {
String fieldName = field.name();
boolean isBoolean = field.isOfType("boolean");
String setterName = TransformationsUtil.toSetterName(fieldName, isBoolean);
if (type.hasMethod(setterName)) return;
String oldValueName = OLD_VALUE_VARIABLE_NAME;
List<lombok.ast.Annotation> nonNulls = field.annotations(TransformationsUtil.NON_NULL_PATTERN);
MethodDecl methodDecl =
MethodDecl(Type("void"), setterName)
.withAccessLevel(level)
.withArgument(Arg(field.type(), fieldName).withAnnotations(nonNulls));
if (!nonNulls.isEmpty() && !field.isPrimitive()) {
methodDecl.withStatement(
If(Equal(Name(fieldName), Null()))
.Then(Throw(New(Type(NullPointerException.class)).withArgument(String(fieldName)))));
}
methodDecl
.withStatement(
LocalDecl(field.type(), oldValueName)
.makeFinal()
.withInitialization(Field(fieldName))) //
.withStatement(Assign(Field(fieldName), Name(fieldName))) //
.withStatement(
Call(Call(PROPERTY_CHANGE_SUPPORT_METHOD_NAME), FIRE_PROPERTY_CHANGE_METHOD_NAME) //
.withArgument(Name(propertyNameFieldName))
.withArgument(Name(oldValueName))
.withArgument(Field(fieldName)));
type.injectMethod(methodDecl);
}