public IntroduceParameterObjectProcessor(
String className,
String packageName,
MoveDestination moveDestination,
PsiMethod method,
VariableData[] parameters,
boolean keepMethodAsDelegate,
final boolean useExistingClass,
final boolean createInnerClass,
String newVisibility,
boolean generateAccessors) {
super(method.getProject());
myMoveDestination = moveDestination;
this.method = method;
this.className = className;
this.packageName = packageName;
this.keepMethodAsDelegate = keepMethodAsDelegate;
myUseExistingClass = useExistingClass;
myCreateInnerClass = createInnerClass;
myNewVisibility = newVisibility;
myGenerateAccessors = generateAccessors;
this.parameters = new ArrayList<ParameterChunk>();
for (VariableData parameter : parameters) {
this.parameters.add(new ParameterChunk(parameter));
}
final PsiParameterList parameterList = method.getParameterList();
final PsiParameter[] methodParams = parameterList.getParameters();
paramsToMerge = new int[parameters.length];
for (int p = 0; p < parameters.length; p++) {
VariableData parameter = parameters[p];
for (int i = 0; i < methodParams.length; i++) {
final PsiParameter methodParam = methodParams[i];
if (parameter.variable.equals(methodParam)) {
paramsToMerge[p] = i;
break;
}
}
}
final Set<PsiTypeParameter> typeParamSet = new HashSet<PsiTypeParameter>();
final PsiTypeVisitor<Object> typeParametersVisitor =
new PsiTypeVisitor<Object>() {
@Override
public Object visitClassType(PsiClassType classType) {
final PsiClass referent = classType.resolve();
if (referent instanceof PsiTypeParameter) {
typeParamSet.add((PsiTypeParameter) referent);
}
return super.visitClassType(classType);
}
};
for (VariableData parameter : parameters) {
parameter.type.accept(typeParametersVisitor);
}
typeParams = new ArrayList<PsiTypeParameter>(typeParamSet);
final String qualifiedName = StringUtil.getQualifiedName(packageName, className);
final GlobalSearchScope scope = GlobalSearchScope.allScope(myProject);
existingClass = JavaPsiFacade.getInstance(myProject).findClass(qualifiedName, scope);
}
ParamUsageVisitor(PsiMethod method, int[] paramIndicesToMerge) {
super();
final PsiParameterList paramList = method.getParameterList();
final PsiParameter[] parameters = paramList.getParameters();
for (int i : paramIndicesToMerge) {
paramsToMerge.add(parameters[i]);
}
}
@Nullable
private static PsiMethod existingClassIsCompatible(PsiClass aClass, List<ParameterChunk> params) {
if (params.size() == 1) {
final ParameterChunk parameterChunk = params.get(0);
final PsiType paramType = parameterChunk.parameter.type;
if (TypeConversionUtil.isPrimitiveWrapper(aClass.getQualifiedName())) {
parameterChunk.setField(aClass.findFieldByName("value", false));
parameterChunk.setGetter(paramType.getCanonicalText() + "Value");
for (PsiMethod constructor : aClass.getConstructors()) {
if (constructorIsCompatible(constructor, params)) return constructor;
}
}
}
final PsiMethod[] constructors = aClass.getConstructors();
PsiMethod compatibleConstructor = null;
for (PsiMethod constructor : constructors) {
if (constructorIsCompatible(constructor, params)) {
compatibleConstructor = constructor;
break;
}
}
if (compatibleConstructor == null) {
return null;
}
final PsiParameterList parameterList = compatibleConstructor.getParameterList();
final PsiParameter[] constructorParams = parameterList.getParameters();
for (int i = 0; i < constructorParams.length; i++) {
final PsiParameter param = constructorParams[i];
final ParameterChunk parameterChunk = params.get(i);
final PsiField field = findFieldAssigned(param, compatibleConstructor);
if (field == null) {
return null;
}
parameterChunk.setField(field);
final PsiMethod getterForField = PropertyUtil.findGetterForField(field);
if (getterForField != null) {
parameterChunk.setGetter(getterForField.getName());
}
final PsiMethod setterForField = PropertyUtil.findSetterForField(field);
if (setterForField != null) {
parameterChunk.setSetter(setterForField.getName());
}
}
return compatibleConstructor;
}
private static boolean constructorIsCompatible(
PsiMethod constructor, List<ParameterChunk> params) {
final PsiParameterList parameterList = constructor.getParameterList();
final PsiParameter[] constructorParams = parameterList.getParameters();
if (constructorParams.length != params.size()) {
return false;
}
for (int i = 0; i < constructorParams.length; i++) {
if (!TypeConversionUtil.isAssignable(
constructorParams[i].getType(), params.get(i).parameter.type)) {
return false;
}
}
return true;
}