/**
* Adds the name of the newly created interface to the implements clause of each class selected
* for the refactoring.
*/
private void addInterfaceToClasses() {
for (int i = 0; i < m_summaryList.size(); i++) {
TypeSummary ts = (TypeSummary) m_summaryList.elementAt(i);
FileSummary fileSummary = (FileSummary) ts.getParent();
File file = fileSummary.getFile();
ASTName interfaceName = new ASTName(0);
String currentPackageName = ts.getPackageSummary().getName();
/*
* If the interface package differs from the class package, then
* specify the interface package name
*/
if ((m_packageName.length() > 0) && !(currentPackageName.equals(m_packageName))) {
interfaceName.fromString(m_packageName + "." + m_interfaceName);
} else {
interfaceName.fromString(m_interfaceName);
}
m_complexTransform.clear();
// Very Important so we don't re-apply the interface transforms
m_complexTransform.add(new AddImplementedInterfaceTransform(interfaceName));
if (!m_packageName.equals(currentPackageName)) {
m_complexTransform.add(new AddImportTransform(interfaceName));
}
m_complexTransform.apply(file, new File(file.getAbsolutePath()));
}
}
/**
* Adds the type in a certain file
*
* @param summary the file summary
* @param list the linked list to add to
*/
private void add(FileSummary summary, LinkedList list) {
Iterator iter = summary.getTypes();
if (iter != null) {
while (iter.hasNext()) {
TypeSummary typeSummary = (TypeSummary) iter.next();
if (isIncluded(typeSummary)) {
list.add(typeSummary.getName());
}
}
}
}
/**
* Creates a new interface file.
*
* @return Description of the Returned Value
*/
private File createInterfaceFile() {
File newFile = null;
TypeSummary ts = (TypeSummary) m_summaryList.elementAt(0);
PackageSummary ps = ts.getPackageSummary();
if (m_packageName == null) {
m_packageName = ps.getName();
}
CreateNewInterface cni = new CreateNewInterface(ts, m_packageName, m_interfaceName);
try {
newFile = cni.run();
} catch (RefactoringException re) {
re.printStackTrace();
return null;
}
m_complexTransform.createFile(newFile);
return newFile;
}
/**
* Gets the Object attribute of the AddAbstractParent object
*
* @param item Description of Parameter
* @return The Object value
*/
private boolean isObject(TypeSummary item) {
if (item == null) {
return true;
}
if (item.getName().equals("Object")) {
return true;
}
return false;
}
/**
* Gets the SameParent attribute of the AddAbstractParent object
*
* @param one Description of Parameter
* @param two Description of Parameter
* @return The SameParent value
*/
private boolean isSameParent(TypeSummary one, TypeSummary two) {
if (isObject(one)) {
return isObject(two);
}
if (isObject(two)) {
return false;
}
return one.equals(two);
}
/**
* Gets a list of public method summaries that are common to all classes for which an interface is
* being extracted.
*
* @return The MethodSummaries value
*/
private Vector getMethodSummaries() {
Vector firstClassMethods = new Vector();
// Add all relevant methods from the first class.
TypeSummary ts = (TypeSummary) m_summaryList.elementAt(0);
Iterator methods = ts.getMethods();
while (methods.hasNext()) {
MethodSummary ms = (MethodSummary) methods.next();
ModifierHolder mh = ms.getModifiers();
/*
* Include only public, non-static, non-constructor methods.
* Private and protected methods are not allowed in interfaces and
* methods that are package-protected in an interface need to be
* implemented by public methods in implementing classes (I think).
*/
if (mh.isPublic() && (!ms.isConstructor()) && (!mh.isStatic())) {
// synchronized modifier is not allowed for interfaces.
mh.setSynchronized(false);
firstClassMethods.addElement(ms);
}
}
return commonMethods(firstClassMethods);
}
/**
* Eliminates methods that don't occurr in all classes and returns the resulting Vector of common
* methods.
*
* @param initialMethods Description of Parameter
* @return Description of the Returned Value
*/
private Vector commonMethods(Vector initialMethods) {
Vector result = new Vector();
for (int i = 0; i < initialMethods.size(); i++) {
boolean keep = true;
outerloop:
for (int j = 1; j < m_summaryList.size(); j++) {
TypeSummary ts = (TypeSummary) m_summaryList.elementAt(j);
Iterator methods = ts.getMethods();
while (methods.hasNext()) {
MethodSummary ms = (MethodSummary) methods.next();
if (ms.equals((MethodSummary) initialMethods.elementAt(i))) {
continue outerloop;
}
}
keep = false;
}
if (keep) {
MethodSummary ms = (MethodSummary) initialMethods.elementAt(i);
result.addElement(initialMethods.elementAt(i));
}
}
return result;
}
