/**
* Returns true if this category contains any bases visible by the given {@link
* arlut.csd.ganymede.server.GanymedeSession session}. If session is null, we're supergash, so of
* course this category is going to contain a visible base.
*/
private boolean containsVisibleBase(GanymedeSession session) {
Vector<CategoryNode> contents;
boolean result = false;
/* -- */
if (session == null) {
return true; // we're not filtering, return true immediately
}
contents = getNodes();
for (CategoryNode node : contents) {
if (node instanceof DBObjectBase) {
DBObjectBase base = (DBObjectBase) node;
if (session.getPermManager().getPerm(base.getTypeID(), true).isVisible()) {
result = true;
}
} else if (node instanceof DBBaseCategory) {
DBBaseCategory subCategory = (DBBaseCategory) node;
result = subCategory.containsVisibleBase(session);
}
}
return result;
}
/**
* This method is used to concatenate this DBBaseCategory's information to the passed-in {@link
* arlut.csd.ganymede.common.CategoryTransport CategoryTransport} object for serialization to the
* client.
*
* <p>This is kind of icky code, really.. {@link arlut.csd.ganymede.server.DBBaseCategory
* DBBaseCategory}, {@link arlut.csd.ganymede.server.DBObjectBase DBObjectBase}, {@link
* arlut.csd.ganymede.server.GanymedeSession GanymedeSession} and {@link
* arlut.csd.ganymede.common.CategoryTransport CategoryTransport} classes are all getting
* involved, here.
*
* <p>The reason for that is that we want to provide a CategoryTransport object to the client that
* makes no reference to the server-side GanymedeSession class, and proper generation of a
* CategoryTransport requires making method calls to a GanymedeSession.
*
* <p>The down side of that is that the actual structure of the CategoryTransport is generated
* across two places.. here and in {@link
* arlut.csd.ganymede.server.DBObjectBase#addBaseToTransport(arlut.csd.ganymede.common.CategoryTransport,
* arlut.csd.ganymede.server.GanymedeSession)}.
*/
private void addCategoryToTransport(
CategoryTransport transport, GanymedeSession session, boolean hideNonEditables) {
Vector<CategoryNode> contents;
/* -- */
transport.addChunk("cat");
transport.addChunk(getName());
contents = getNodes();
if (contents.size() > 0) {
transport.addChunk("<");
for (CategoryNode node : contents) {
if (node instanceof DBObjectBase) {
DBObjectBase base = (DBObjectBase) node;
if (session == null
|| (hideNonEditables
&& session.getPermManager().getPerm(base.getTypeID(), true).isEditable())
|| (!hideNonEditables
&& session.getPermManager().getPerm(base.getTypeID(), true).isVisible())) {
base.addBaseToTransport(transport, session);
}
} else if (node instanceof DBBaseCategory) {
DBBaseCategory subCategory = (DBBaseCategory) node;
if (session == null
|| (hideNonEditables && subCategory.containsEditableBase(session))
|| (!hideNonEditables && subCategory.containsVisibleBase(session))) {
subCategory.addCategoryToTransport(transport, session, hideNonEditables);
}
}
}
}
// terminate this category record
transport.addChunk(">");
}
