private static boolean changePackagePrefixes(
PsiPackage psiPackage, final String oldQualifiedName, final String newQualifiedName) {
final Module[] modules = ModuleManager.getInstance(psiPackage.getProject()).getModules();
List<ModifiableRootModel> modelsToCommit = new ArrayList<ModifiableRootModel>();
for (final Module module : modules) {
boolean anyChange = false;
final ModifiableRootModel rootModel =
ModuleRootManager.getInstance(module).getModifiableModel();
for (final ContentEntry contentEntry : rootModel.getContentEntries()) {
for (final SourceFolder sourceFolder :
contentEntry.getSourceFolders(JavaModuleSourceRootTypes.SOURCES)) {
final String packagePrefix = sourceFolder.getPackagePrefix();
if (packagePrefix.startsWith(oldQualifiedName)) {
sourceFolder.setPackagePrefix(
newQualifiedName + packagePrefix.substring(oldQualifiedName.length()));
anyChange = true;
}
}
}
if (anyChange) {
modelsToCommit.add(rootModel);
} else {
rootModel.dispose();
}
}
if (!modelsToCommit.isEmpty()) {
ModifiableRootModel[] rootModels =
modelsToCommit.toArray(new ModifiableRootModel[modelsToCommit.size()]);
if (rootModels.length > 0) {
ModifiableModelCommitter.multiCommit(
rootModels, ModuleManager.getInstance(rootModels[0].getProject()).getModifiableModel());
}
return true;
} else {
return false;
}
}