private static boolean hasReadOnlyResourcesAndSubResources(IJavaScriptElement javaElement)
throws CoreException {
switch (javaElement.getElementType()) {
case IJavaScriptElement.CLASS_FILE:
// if this assert fails, it means that a precondition is missing
Assert.isTrue(((IClassFile) javaElement).getResource() instanceof IFile);
// fall thru
case IJavaScriptElement.JAVASCRIPT_UNIT:
IResource resource = ReorgUtils.getResource(javaElement);
return (resource != null && Resources.isReadOnly(resource));
case IJavaScriptElement.PACKAGE_FRAGMENT:
IResource packResource = ReorgUtils.getResource(javaElement);
if (packResource == null) return false;
IPackageFragment pack = (IPackageFragment) javaElement;
if (Resources.isReadOnly(packResource)) return true;
Object[] nonJava = pack.getNonJavaScriptResources();
for (int i = 0; i < nonJava.length; i++) {
Object object = nonJava[i];
if (object instanceof IResource
&& hasReadOnlyResourcesAndSubResources((IResource) object)) return true;
}
return hasReadOnlyResourcesAndSubResources(pack.getChildren());
case IJavaScriptElement.PACKAGE_FRAGMENT_ROOT:
IPackageFragmentRoot root = (IPackageFragmentRoot) javaElement;
if (root.isArchive()) return false;
IResource pfrResource = ReorgUtils.getResource(javaElement);
if (pfrResource == null) return false;
if (Resources.isReadOnly(pfrResource)) return true;
Object[] nonJava1 = root.getNonJavaScriptResources();
for (int i = 0; i < nonJava1.length; i++) {
Object object = nonJava1[i];
if (object instanceof IResource
&& hasReadOnlyResourcesAndSubResources((IResource) object)) return true;
}
return hasReadOnlyResourcesAndSubResources(root.getChildren());
case IJavaScriptElement.FIELD:
case IJavaScriptElement.IMPORT_CONTAINER:
case IJavaScriptElement.IMPORT_DECLARATION:
case IJavaScriptElement.INITIALIZER:
case IJavaScriptElement.METHOD:
case IJavaScriptElement.TYPE:
return false;
default:
Assert.isTrue(false); // not handled here
return false;
}
}
private static boolean hasReadOnlyResourcesAndSubResources(IResource resource)
throws CoreException {
if (resource.isLinked()) // we don't want to count these because we never actually delete linked
// resources
return false;
if (Resources.isReadOnly(resource)) return true;
if (resource instanceof IContainer)
return hasReadOnlyResourcesAndSubResources(((IContainer) resource).members());
return false;
}