/**
* Retrieves value of "prefix" node of the YANG module, which is identified by the given {@code
* info}.
*
* @param info {@link ElementIndexInfo}, which identifies the quested module
* @return value of "prefix" node, if it existed; an empty string otherwise.
*/
public static String retrieveModulePrefix(ElementIndexInfo info) {
String defaultPrefix = "";
try {
Module importedModule = YangCorePlugin.createYangFile(info.getPath()).getModule();
SimpleNode<String> prefixNode = importedModule.getPrefix();
if (prefixNode != null) {
defaultPrefix = prefixNode.getValue();
}
} catch (YangModelException ex) {
YangCorePlugin.log(ex, "Yang source file could not be loaded.");
}
return defaultPrefix;
}
@Override
public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
@SuppressWarnings("deprecation")
String info = super.getHoverInfo(textViewer, hoverRegion);
if (info != null) {
return HelpCompositionUtils.wrapHtmlText(info, null);
}
String hoverInfo = null;
YangEditor editor = (YangEditor) getEditor();
if (editor != null) {
try {
Module module = editor.getModule();
if (module != null) {
ASTNode node = module.getNodeAtPosition(hoverRegion.getOffset());
hoverInfo = HelpCompositionUtils.getNodeHelp(node);
}
} catch (YangModelException e) {
YangCorePlugin.log(e);
}
}
return hoverInfo;
}