/**
* Parses registry element to extract mode and selection elements that will be used for
* verification.
*/
private void parseClasses(IConfigurationElement config) {
// Get enables for.
String enablesFor = config.getAttribute(IWorkbenchRegistryConstants.ATT_ENABLES_FOR);
if (enablesFor == null) {
enablesFor = "*"; // $NON-NLS-1$
}
if (enablesFor.equals("*")) { // $NON-NLS-1$
mode = ANY_NUMBER;
} else if (enablesFor.equals("?")) { // $NON-NLS-1$
mode = NONE_OR_ONE;
} else if (enablesFor.equals("!")) { // $NON-NLS-1$
mode = NONE;
} else if (enablesFor.equals("+")) { // $NON-NLS-1$
mode = ONE_OR_MORE;
} else if (enablesFor.equals("multiple") // $NON-NLS-1$
|| enablesFor.equals("2+")) { // $NON-NLS-1$
mode = MULTIPLE;
} else {
try {
mode = Integer.parseInt(enablesFor);
} catch (NumberFormatException e) {
mode = UNKNOWN;
}
}
// Get enablement block.
IConfigurationElement[] children =
config.getChildren(IWorkbenchRegistryConstants.TAG_ENABLEMENT);
if (children.length > 0) {
enablementExpression = new ActionExpression(children[0]);
return;
}
// Get selection block.
children = config.getChildren(IWorkbenchRegistryConstants.TAG_SELECTION);
if (children.length > 0) {
classes = new ArrayList();
for (int i = 0; i < children.length; i++) {
IConfigurationElement sel = children[i];
String cname = sel.getAttribute(IWorkbenchRegistryConstants.ATT_CLASS);
String name = sel.getAttribute(IWorkbenchRegistryConstants.ATT_NAME);
SelectionClass sclass = new SelectionClass();
sclass.className = cname;
sclass.nameFilter = name;
classes.add(sclass);
}
}
}