private boolean applyFilters(CategorySerializable cat) {
// Apply any filters.
boolean include = true;
if (filters.size() > 0) {
for (Iterator filterIt = filters.iterator(); filterIt.hasNext(); ) {
DatasetFilter filter = (DatasetFilter) filterIt.next();
// This should be done with introspection, but for now do a
// big cheat
String name = "x";
String value = "y";
if (filter.getAttribute().equals("name")) {
name = cat.getName().toLowerCase();
value = filter.getValue().toLowerCase();
} else if (filter.getAttribute().equals("ID")) {
name = cat.getID();
value = filter.getValue();
}
if (name.contains(value)) {
include = include && filter.isInclude();
} else {
include = include && !filter.isInclude();
}
}
}
return include;
}
public void onSuccess(Object result) {
CategorySerializable[] cats = (CategorySerializable[]) result;
if (cats != null && cats.length > 0) {
if (currentlySelected == null) {
for (int i = 0; i < cats.length; i++) {
CategorySerializable cat = cats[i];
String children = cat.getAttributes().get("children");
boolean empty = false;
if (children != null && children.equals("none")) empty = true;
if (applyFilters(cat) && !empty) {
TreeItem item = new TreeItem();
item.addItem(
new SafeHtmlBuilder().appendEscaped(DatasetWidget.LOADING).toSafeHtml());
InnerItem inner = new InnerItem(cat);
item.setWidget(inner);
item.setUserObject(cat);
addItem(item);
}
}
} else {
for (int i = 0; i < cats.length; i++) {
CategorySerializable cat = cats[i];
if (cat.isCategoryChildren()) {
String name = cat.getName();
TreeItem item;
if (i == 0) {
item = currentlySelected.getChild(0);
} else {
item = new TreeItem();
}
item.addItem(
new SafeHtmlBuilder().appendEscaped(DatasetWidget.LOADING).toSafeHtml());
InnerItem inner = new InnerItem(cat);
item.setWidget(inner);
item.setUserObject(cat);
if (i > 0) {
currentlySelected.addItem(item);
}
} else if (cat.isVariableChildren()) {
// Must have variable children...
TreeItem item = currentlySelected.getChild(0);
if (cat.hasMultipleDatasets()) {
DatasetSerializable[] dses = cat.getDatasetSerializableArray();
DatasetSerializable ds = dses[0];
VariableSerializable[] vars = ds.getVariablesSerializable();
currentlySelected.removeItems();
for (int j = 0; j < dses.length; j++) {
ds = dses[j];
vars = ds.getVariablesSerializable();
loadItem(vars);
}
} else {
DatasetSerializable ds = cat.getDatasetSerializable();
VariableSerializable[] vars = ds.getVariablesSerializable();
currentlySelected.removeItems();
loadItem(vars);
}
}
}
}
} else {
// A category was selected, but it came back empty...
if (currentlySelected != null) {
TreeItem item = currentlySelected.getChild(0);
item.setText("No data sets found.");
}
}
if (saveSelection != null) {
currentlySelected = saveSelection;
saveSelection = null;
}
}