/*
* Checks whether the visibility of the method can be changed to the given
* level. If not, an error entry is added to the RefactoringStatus object.
*
* @param method method to be checked
* @param visibility target method visibility
* @param status
*/
private void checkVisibilityChange(BinMethod method, int visibility, List errors) {
if (BinModifier.hasFlag(method.getAccessModifier(), visibility)) {
// method already has this visibility
return;
} else {
List usages = getInvocationsForMethod(method);
int[] allowedVisibilities = MinimizeAccessUtil.findMethodAccessRights(method, usages);
Arrays.sort(allowedVisibilities);
if (Arrays.binarySearch(allowedVisibilities, visibility) < 0) {
errors.add(
"The visibility of the method cannot be changed to "
+ new BinModifierFormatter(visibility, true).print());
}
}
}
/** @see net.sf.refactorit.refactorings.Refactoring#performChange */
public TransformationList performChange() {
TransformationList transList = new TransformationList();
if (this.fieldVisibility != -1) {
int changedAccessModifier = -1;
MemberVisibilityAnalyzer accessAnalyzer = new MemberVisibilityAnalyzer(this.field);
int allowedAccess = accessAnalyzer.getPosterioriFieldAccess(this.getAllUsages(), this.usages);
if (this.fieldVisibility == BinModifier.PRIVATE) {
if (allowedAccess != BinModifier.PRIVATE) {
changedAccessModifier = allowedAccess;
}
} else if (this.fieldVisibility == BinModifier.PACKAGE_PRIVATE) {
if ((allowedAccess != BinModifier.PRIVATE)
&& (allowedAccess != BinModifier.PACKAGE_PRIVATE)) {
changedAccessModifier = allowedAccess;
}
} else if (this.fieldVisibility == BinModifier.PROTECTED) {
if (allowedAccess == BinModifier.PUBLIC) {
changedAccessModifier = allowedAccess;
}
}
if (changedAccessModifier != -1) {
transList
.getStatus()
.addEntry(
"Couldn't change field access to "
+ getAccessName(fieldVisibility)
+ ".\n"
+ "Using "
+ getAccessName(changedAccessModifier)
+ " access instead.",
RefactoringStatus.WARNING);
this.fieldVisibility = changedAccessModifier;
}
}
Map usageMap = new HashMap();
for (int i = 0; i < usages.size(); ++i) {
EncapsulationInvocationData id = (EncapsulationInvocationData) usages.get(i);
if (id.isEncapsulationPossible()) {
CompilationUnit sf = id.getCompilationUnit();
List usagesInSource = (List) usageMap.get(sf);
if (usagesInSource == null) {
usagesInSource = new ArrayList();
usageMap.put(sf, usagesInSource);
}
usagesInSource.add(id);
}
}
for (Iterator i = usageMap.keySet().iterator(); i.hasNext(); ) {
CompilationUnit compilationUnit = (CompilationUnit) i.next();
new EncapsulateEditor(field, getterName, setterName, (List) usageMap.get(compilationUnit))
.generateEditors(transList);
}
int column = 0;
int line = 0;
BinClass hostingClass = (BinClass) getField().getOwner().getBinCIType();
line = hostingClass.getEndLine();
StringBuffer buffer = new StringBuffer();
if (encapsulateRead) {
BinMethod getter = getGetterMethod();
if (getter == null) {
buffer.append(createGetterBody());
} else {
transList.add(
new ModifierEditor(
getter, BinModifier.setFlags(getter.getModifiers(), this.getGetterVisibility())));
}
}
if (encapsulateWrite) {
BinMethod setter = getSetterMethod();
if (setter == null) {
buffer.append(createSetterBody());
} else {
transList.add(
new ModifierEditor(
setter, BinModifier.setFlags(setter.getModifiers(), this.getSetterVisibility())));
}
}
if (buffer.length() > 0) {
StringInserter inserter =
new StringInserter(hostingClass.getCompilationUnit(), line, column, buffer.toString());
transList.add(inserter);
}
if (this.fieldVisibility != -1) {
transList.add(
new ModifierEditor(field, BinModifier.setFlags(field.getModifiers(), fieldVisibility)));
}
return transList;
}
