private Collection<ICompletionProposal> getNavigationProposals(IDocument doc, int offset) {
String navPrefix = navigationPrefixFinder.getPrefix(doc, offset);
try {
if (navPrefix != null) {
int navOffset =
offset - navPrefix.length() - 1; // offset of 'nav' operator char (i.e. '.' or ']').
navPrefix = fuzzySearchPrefix.getPrefix(doc, navOffset);
if (navPrefix != null && !navPrefix.isEmpty()) {
PropertyInfo prop = findLongestValidProperty(getIndex(), navPrefix);
if (prop != null) {
int regionStart = navOffset - navPrefix.length();
PropertyNavigator navigator =
new PropertyNavigator(doc, null, typeUtil, region(regionStart, navOffset));
Type type =
navigator.navigate(
regionStart + prop.getId().length(), TypeParser.parse(prop.getType()));
if (type != null) {
return getNavigationProposals(doc, type, navOffset, offset);
}
}
}
}
} catch (Exception e) {
BootActivator.log(e);
}
return Collections.emptyList();
}
/** Determine the value type for a give propertyName. */
protected Type getValueType(String propertyName) {
try {
PropertyInfo prop = getIndex().get(propertyName);
if (prop != null) {
return TypeParser.parse(prop.getType());
} else {
prop = findLongestValidProperty(getIndex(), propertyName);
if (prop != null) {
Document doc = new Document(propertyName);
PropertyNavigator navigator =
new PropertyNavigator(doc, null, typeUtil, new Region(0, doc.getLength()));
return navigator.navigate(prop.getId().length(), TypeParser.parse(prop.getType()));
}
}
} catch (Exception e) {
BootActivator.log(e);
}
return null;
}