private PsiMethod generateMethodFor(
PsiField field, String methodName, String parameterName, PsiElementFactory elementFactory) {
PsiMethod withMethod =
elementFactory.createMethod(
methodName, elementFactory.createType(field.getContainingClass()));
PsiParameter parameter = elementFactory.createParameter(parameterName, field.getType());
withMethod.getParameterList().add(parameter);
PsiUtil.setModifierProperty(withMethod, PsiModifier.PUBLIC, true);
return withMethod;
}
private GenerationInfo generateWithMethodFor(PsiField field) {
PsiMethod templateMethod = generateMethodPrototype(field);
PsiMethod existingMethod =
field.getContainingClass().findMethodBySignature(templateMethod, false);
return existingMethod == null ? new PsiGenerationInfo(templateMethod) : null;
}
private PsiMethod generateMethodPrototype(PsiField field) {
Project project = field.getProject();
JavaCodeStyleManager codeStyleManager = JavaCodeStyleManager.getInstance(project);
PsiElementFactory elementFactory = JavaPsiFacade.getInstance(project).getElementFactory();
String propertyName =
codeStyleManager.variableNameToPropertyName(
field.getName(), codeStyleManager.getVariableKind(field));
String methodName = methodNameGenerator.generateMethodNameFor(propertyName);
String parameterName =
codeStyleManager.propertyNameToVariableName(propertyName, VariableKind.PARAMETER);
PsiMethod withMethod = generateMethodFor(field, methodName, parameterName, elementFactory);
generateMethodBodyFor(withMethod, propertyName, parameterName, elementFactory);
return withMethod;
}