/**
* Return the subset of children that are of interest from the given context. By default, this
* method returns those children whose traversals contain a diff in the context. However, it does
* not include those model elements that do not exist locally but are within the context (e.g.
* locally deleted elements and remotely added elements). Subclasses must override to include
* these.
*
* @param context the context
* @param parent the parent of the children
* @param children the children
* @return the subset of children that are of interest from the given context
*/
protected Object[] getChildrenInContext(
ISynchronizationContext context, Object parent, Object[] children) {
if (children.length != 0) children = getChildrenInScope(context.getScope(), parent, children);
if (parent instanceof IResource) {
IResource resource = (IResource) parent;
children = getChildrenWithPhantoms(context, resource, children);
}
if (children.length == 0) return children;
return internalGetChildren(context, parent, children);
}
private Object[] internalGetChildren(Object parent, boolean isElement) {
Object element = internalGetElement(parent);
if (element instanceof ISynchronizationScope) {
// If the root is a scope, we want to include all models in the scope
ISynchronizationScope rms = (ISynchronizationScope) element;
if (rms.getMappings(getModelProviderId()).length > 0) {
empty = false;
return new Object[] {getModelProvider()};
}
empty = true;
return new Object[0];
} else if (element instanceof ISynchronizationContext) {
ISynchronizationContext context = (ISynchronizationContext) element;
// If the root is a context, we want to filter by the context
ISynchronizationContext sc = (ISynchronizationContext) element;
if (sc.getScope().getMappings(getModelProviderId()).length > 0) {
Object root = getModelRoot();
boolean initialized = isInitialized(context);
if (!initialized
|| getChildrenInContext(sc, root, getDelegateChildren(root, isElement)).length > 0) {
if (!initialized) requestInitialization(context);
empty = false;
return new Object[] {getModelProvider()};
}
}
empty = true;
return new Object[0];
}
if (element == getModelProvider()) {
ISynchronizationContext context = getContext();
if (context != null && !isInitialized(context)) {
return new Object[0];
}
element = getModelRoot();
if (parent instanceof TreePath) {
parent = TreePath.EMPTY.createChildPath(element);
} else {
parent = element;
}
}
Object[] delegateChildren = getDelegateChildren(parent, isElement);
ISynchronizationContext context = getContext();
if (context == null) {
ISynchronizationScope scope = getScope();
if (scope == null) {
return delegateChildren;
} else {
return getChildrenInScope(scope, parent, delegateChildren);
}
} else {
return getChildrenInContext(context, parent, delegateChildren);
}
}