solved Task 3

src/ch/zhaw/ads/FuzzySearchServer.java

@@ -2,7 +2,6 @@ package ch.zhaw.ads;
 
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 
@@ -15,11 +14,26 @@ public class FuzzySearchServer implements CommandExecutor {
     // each name only once (i.e. no doublettes allowed
     public static void loadNames(String nameString) {
         // TODO implement
+        String[] names = nameString.split("\n");
+        for (String nameLine : names) {
+            String name = nameLine.split(";")[0];
+            if(! FuzzySearchServer.names.contains(name)){
+                FuzzySearchServer.names.add(name);
+            }
+        }
     }
 
     // add a single trigram to 'trigrams' index
     public static void addToTrigrams(int nameIdx, String trig) {
         // TODO implement
+        List<Integer> actualList = trigrams.get(trig);
+        if(actualList == null){
+            actualList = new ArrayList<>();
+            actualList.add(nameIdx);
+            trigrams.put(trig, actualList);
+        } else {
+            actualList.add(nameIdx);
+        }
     }
 
     // works better for flipped and short names if " " added and lowercase
@@ -31,6 +45,11 @@ public class FuzzySearchServer implements CommandExecutor {
     public static List<String> trigramForName(String name) {
         name = nomalize(name);
         // TODO implement
+        List<String> trigrams = new ArrayList<>();
+        for(int i = 0; i < name.length() - 2; i++){
+            trigrams.add(name.substring(i, i + 3));
+        }
+        return trigrams;
     }
 
     public static void constructTrigramIndex(List<String> names) {
@@ -52,9 +71,20 @@ public class FuzzySearchServer implements CommandExecutor {
     // if no trigram/name matches at all then return -1
     public static int findIdx(String name) {
         counts.clear();
-        int maxIdx = -1;
+        final int[] maxIdx = {-1};
         // TODO implement
-        return maxIdx;
+        List<String> trigrams = trigramForName(name);
+        trigrams.forEach(trigram -> {
+            if(FuzzySearchServer.trigrams.get(trigram) != null){
+                FuzzySearchServer.trigrams.get(trigram).forEach(nameIndex -> {
+                    incCount(nameIndex);
+                    if (maxIdx[0] == -1 || counts.get(nameIndex) > counts.get(maxIdx[0])) {
+                        maxIdx[0] = nameIndex;
+                    }
+                });
+            }
+        });
+        return maxIdx[0];
     }
     // finde Namen gebe "" zurück wenn gefundener Name nicht grösser als verlangter score ist.
     public static String find(String searchName, int scoreRequired) {