skype.UsersSortedByUserId Maven / Gradle / Ivy

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package skype;

import java.util.Comparator;
import java.util.TreeSet;

@SuppressWarnings("serial")
public class UsersSortedByUserId extends TreeSet {
	public UsersSortedByUserId() {
		super(getUserIdComparator());
	}
	
	public SkypeUser findByDisplayName(String userDisplay)
	{
		for (SkypeUser chatUser : this) {
			if (chatUser.getDisplayName().equals(userDisplay)) {
				return chatUser;
			}
			if (chatUser.getUserId().equals(userDisplay)) {
				return chatUser;
			}
		}
		return SkypeUserNotFound.produce(userDisplay);
	}

	private static Comparator getUserIdComparator() {
		return new Comparator() {

			@Override
			public int compare(SkypeUser o1, SkypeUser o2) {
				String o1Key = o1.getUserId()+o1.getDisplayName();
				String o2Key = o2.getUserId()+o2.getDisplayName();
				return o1Key.compareTo(o2Key);
			}
		};
	}
}