public static String highlight(String text, String[] words) {
if (text == null) {
return null;
}
if (words == null || words.length == 0) {
return text;
}
// TODO Consider using a primitive array
List<Pair<Integer, Integer>> positions = Lists.newArrayList();
String lower = text.toLowerCase();
for (int i = 0; i < words.length; i++) {
String word = words[i].toLowerCase();
int start = 0;
while (start != -1) {
start = lower.indexOf(word, start);
if (start != -1) {
int end = start + word.length();
positions.add(Pair.of(start, end));
start++;
}
}
}
if (positions.isEmpty()) {
return text;
}
Collections.sort(
positions,
new Comparator<Pair<Integer, Integer>>() {
@Override
public int compare(Pair<Integer, Integer> o1, Pair<Integer, Integer> o2) {
int comparison = o1.getKey().compareTo(o2.getKey());
if (comparison == 0) {
return o2.getValue().compareTo(o1.getValue());
}
return comparison;
}
});
StringBuilder out = new StringBuilder();
int pos = 0;
for (Pair<Integer, Integer> position : positions) {
int from = position.getKey();
int to = position.getValue();
if (from >= pos) {
String sub = text.substring(pos, from);
out.append(StringEscapeUtils.escapeXml(sub));
out.append("<em>");
out.append(StringEscapeUtils.escapeXml(text.substring(from, to)));
out.append("</em>");
pos = to;
}
}
out.append(text.substring(pos));
return out.toString();
}
public List<Item> getUsers() {
PairSearchResult<User, Person> result = modelService.searchPairs(new UserQuery());
List<Item> list = Lists.newArrayList();
for (Pair<User, Person> pair : result.getList()) {
Item item = new Item();
User user = pair.getKey();
item.user = user;
item.person = pair.getValue();
item.userCanModifyPerson = securityService.canModify(item.person, user);
item.setPublicCanViewPerson(securityService.canView(user, securityService.getPublicUser()));
list.add(item);
}
return list;
}