@Override
protected void setValue(final Object element, final Object value) {
VolumeOption oldEntry = (VolumeOption) element;
Integer newValue = (Integer) value;
String newKey = allowedKeys[newValue];
if (((VolumeOption) element).getKey().equals(newKey)) {
// selected value is same as old one.
return;
}
// value has changed. set new value and refresh the viewer.
volume.getOptions().remove(oldEntry.getKey());
volume.setOption(newKey, "");
getViewer().refresh();
}
protected VolumeOption getEntryBeingAdded() {
List<VolumeOption> options = volume.getOptions().getOptions();
int size = options.size();
String lastValue = options.get(size - 1).getValue();
if (lastValue == null || lastValue.isEmpty()) {
// it's the LAST entry, and it's value is empty.
// means this is a new row being added in the table viewer.
return options.get(size - 1);
}
return null;
}
/** @return array of option keys that are not already set on the volume */
private String[] getAllowedKeys() {
ArrayList<String> keys = new ArrayList<String>();
VolumeOptions volumeOptions = volume.getOptions();
for (VolumeOptionInfo optionInfo : defaults) {
String optionName = optionInfo.getName();
if (!volumeOptions.containsKey(optionName) || volumeOptions.get(optionName).isEmpty()) {
// key not set => available for setting
// value not set => this is the row being edited
keys.add(optionName);
}
}
return keys.toArray(new String[0]);
}