Bukkit FuzzySearch for commands. Easily fuzzy search for the correct command! Easy to use with subCommands, and support for multiple commands.

Bukkit FuzzySearch for Commands

import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;

import org.apache.commons.lang.StringUtils;

public class FuzzySearch {
  private static HashMap<String,String[]> searchers = new HashMap<String,String[]>();
	
	
	public static void addSearcher(String id, String[] words){
		searchers.put(id,words);
	}
	
	public static void removeSearcher(String id){
		searchers.remove(id);
	}	
	
	
	public static void addWords(String id, String... wordsToAdd){
		String[] currentWords = searchers.get(id);
		//create new larger array and copy over old data
		String[] words = new String[currentWords.length+wordsToAdd.length];
		for(int i=0;i<currentWords.length;i++){
			words[i]=currentWords[i];
		}
		//add new words
		for(int i=0;i<wordsToAdd.length;i++){
			words[i+currentWords.length]=wordsToAdd[i];
		}
		searchers.put(id, currentWords);
	}
	
	public static String[] getWords(String id){
		return searchers.get(id);
	}
	
	public static String getClosestWord(String id, String search){
		String match = "";
		int smallestDistance = Integer.MAX_VALUE;
		for(String word:searchers.get(id)){
			int distance = StringUtils.getLevenshteinDistance(word, search);
			if(distance<smallestDistance){
				smallestDistance=distance;
				match=word;
			}
		}
		
		return match;
	}
	
	public static String[] getClosestWords(String id, final String search){
		
		//sort words based on distance
		String[] words = searchers.get(id);
		
		Arrays.sort(words,new Comparator<String>(){
			@Override
			public int compare(String o1, String o2) {
				int d1 = StringUtils.getLevenshteinDistance(search, o1);
				int d2 = StringUtils.getLevenshteinDistance(search, o2);
				return Integer.signum(d1 - d2);
			}
		});
		
		return words;
	}
	
	public static boolean isArg(String id, String search){
		return Arrays.asList(searchers.get(id)).contains(search);
	}
	
	public static String[] getClosestWords(String id, final String search, int amount){
		String[] closestWords = getClosestWords(id,search);
		
		String[] trimmed = new String[amount];
		for(int i=0;i<closestWords.length;i++){
			if(i<trimmed.length){
				trimmed[i] = closestWords[i];
			}
		}
		return trimmed;
	}
}