Добавлена возможность задать направление паттерна

src/main/java/ru/serega6531/packmate/model/Pattern.java

@@ -34,6 +34,8 @@ public class Pattern {
 
     private boolean isRegex;
 
+    private PatternType type;
+
     @ManyToMany(mappedBy = "foundPatterns", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     @JsonIgnore
     private List<Stream> matchedStreams;

src/main/java/ru/serega6531/packmate/model/PatternType.java

@@ -0,0 +1,5 @@
+package ru.serega6531.packmate.model;
+
+public enum PatternType {
+    INPUT, OUTPUT, BOTH
+}

src/main/java/ru/serega6531/packmate/repository/PatternRepository.java

@@ -2,6 +2,12 @@ package ru.serega6531.packmate.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import ru.serega6531.packmate.model.Pattern;
+import ru.serega6531.packmate.model.PatternType;
+
+import java.util.List;
 
 public interface PatternRepository extends JpaRepository<Pattern, Integer> {
+
+    List<Pattern> findAllByTypeEqualsOrTypeEquals(PatternType type, PatternType both);
+
 }

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

@@ -7,6 +7,7 @@ import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import ru.serega6531.packmate.model.Pattern;
+import ru.serega6531.packmate.model.PatternType;
 import ru.serega6531.packmate.model.Stream;
 import ru.serega6531.packmate.repository.PatternRepository;
 
@@ -35,10 +36,10 @@ public class PatternService {
         return repository.findAll();
     }
 
-    public List<Pattern> findMatching(byte[] bytes) {
+    public List<Pattern> findMatching(byte[] bytes, boolean incoming) {
         String content = new String(bytes);
 
-        return findAll().stream()
+        return repository.findAllByTypeEqualsOrTypeEquals(incoming ? PatternType.INPUT : PatternType.OUTPUT, PatternType.BOTH).stream()
                 .filter(pattern -> matches(pattern, content))
                 .collect(Collectors.toList());
     }

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

@@ -165,7 +165,7 @@ public class StreamService {
         for (ru.serega6531.packmate.model.Packet packet : packets) {
             packet.setStream(savedStream);
             savedPackets.add(packetService.save(packet));
-            matches.addAll(patternService.findMatching(packet.getContent()));
+            matches.addAll(patternService.findMatching(packet.getContent(), packet.isIncoming()));
         }
 
         savedStream.setFoundPatterns(new ArrayList<>(matches));