}
private static IPackageFragment getPackageFragment(char[] fileName, int pkgEnd, int jarSeparator) {
if (jarSeparator != -1) {
String jarMemento = new String(fileName, 0, jarSeparator);
PackageFragmentRoot root = (PackageFragmentRoot) JavaCore.create(jarMemento);
if (pkgEnd == jarSeparator)
return root.getPackageFragment(CharOperation.NO_STRINGS);
char[] pkgName = CharOperation.subarray(fileName, jarSeparator+1, pkgEnd);
char[][] compoundName = CharOperation.splitOn('/', pkgName);
return root.getPackageFragment(CharOperation.toStrings(compoundName));
} else {
Path path = new Path(new String(fileName, 0, pkgEnd));
IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
IContainer folder = path.segmentCount() == 1 ? workspaceRoot.getProject(path.lastSegment()) : (IContainer) workspaceRoot.getFolder(path);
IJavaElement element = JavaCore.create(folder);
if (element == null) return null;
switch (element.getElementType()) {
case IJavaElement.PACKAGE_FRAGMENT:
return (IPackageFragment) element;
case IJavaElement.PACKAGE_FRAGMENT_ROOT:
return ((PackageFragmentRoot) element).getPackageFragment(CharOperation.NO_STRINGS);
case IJavaElement.JAVA_PROJECT:
PackageFragmentRoot root = (PackageFragmentRoot) ((IJavaProject) element).getPackageFragmentRoot(folder);
if (root == null) return null;
return root.getPackageFragment(CharOperation.NO_STRINGS);
}
return null;
}
}