Resolve "Die Statistiken sollten auch in ElasticSearch hinterlegt werden."

Related to #384 (closed)

src/main/java/at/ac/uibk/gitsearch/service/GitlabEventService.java

@@ -28,6 +28,7 @@ import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import javax.annotation.PostConstruct;
 import javax.el.MethodNotFoundException;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.Pair;
 import org.codeability.sharing.plugins.api.search.UserProvidedMetadataDTO;
 import org.gitlab4j.api.GitLabApi;
@@ -306,22 +307,25 @@ public class GitlabEventService {
             }
             return this.getPath().getParent().resolve(childPath).normalize();
         }
+    }
 
-        public String[] parseChildPath(String childPath) throws ParseException {
-            Pattern pattern = Pattern.compile("^(http[^\\[]+)?(\\[(\\d*)\\])?(.+)?$");
-            Matcher match = pattern.matcher(childPath);
-            if (!match.find()) {
-                throw new ParseException("Cannot parse " + childPath, 0);
-            }
-            String childGitUrl = match.group(1);
-            String childProjectId = match.group(3);
-            String childPathString = match.group(4);
-            if (childProjectId != null && childPathString.startsWith("/")) {
-                // we transfer it into a relative path
-                childPathString = childPathString.substring(1);
-            }
-            return new String[] { childGitUrl, childProjectId, childPathString };
+    protected static String[] parseChildPath(String childPath) throws ParseException {
+        Pattern pattern = Pattern.compile("^(http[^\\[]+)?(\\[(\\d*)\\])?(.+)?$");
+        Matcher match = pattern.matcher(childPath);
+        if (!match.find()) {
+            throw new ParseException("Cannot parse " + childPath, 0);
+        }
+        String childGitUrl = match.group(1);
+        String childProjectId = match.group(3);
+        if (StringUtils.isEmpty(childProjectId)) {
+            childProjectId = null;
+        }
+        String childPathString = match.group(4);
+        if (childProjectId != null && childPathString != null && childPathString.startsWith("/")) {
+            // we transfer it into a relative path
+            childPathString = childPathString.substring(1);
         }
+        return new String[] { childGitUrl, childProjectId, childPathString };
     }
 
     /**