Работа над добавлением поиска паттернов

src/main/java/ru/serega6531/packmate/service/PatternService.java

@@ -1,12 +1,15 @@
 package ru.serega6531.packmate.service;
 
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import ru.serega6531.packmate.model.Pattern;
 import ru.serega6531.packmate.repository.PatternRepository;
 
+import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Collectors;
 
 @Service
 @Slf4j
@@ -23,6 +26,14 @@ public class PatternService {
         return repository.findAll();
     }
 
+    public List<Pattern> findMatching(byte[] bytes) {
+        String content = new String(bytes);
+
+        return findAll().stream()
+                .filter(pattern -> StringUtils.containsIgnoreCase(content, pattern.getValue()))
+                .collect(Collectors.toList());
+    }
+
     public void deleteById(int id) {
         repository.deleteById(id);
     }