Refactor Search API and allow analyzer per field (#1755)

The Search api is now simpler, because it provides useful defaults. Only if you want to deviate from the defaults, you can set these values. This is mostly reached by using the builder pattern. Furthermore it is now possible to configure an analyzer per field. The default analyzer is still the one which is derived from the index options, but it is possible to configure a new indexer with the analyzer attribute of the indexed annotation. The attribute allows the configuration for code, identifiers and path. The current implementation uses the same analyzer code, identifiers and path. The new implemented splits tokens on more delimiters as the default analyzer e.g.: dots, underscores etc.

Co-authored-by: René Pfeuffer <rene.pfeuffer@cloudogu.com>

scm-webapp/src/test/java/sonia/scm/user/UserIndexerTest.java

@@ -28,13 +28,14 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Answers;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 import sonia.scm.HandlerEventType;
 import sonia.scm.search.Id;
 import sonia.scm.search.Index;
-import sonia.scm.search.IndexQueue;
+import sonia.scm.search.SearchEngine;
 
 import static java.util.Collections.singletonList;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -47,22 +48,17 @@ class UserIndexerTest {
   @Mock
   private UserManager userManager;
 
-  @Mock
-  private IndexQueue indexQueue;
+  @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+  private SearchEngine searchEngine;
 
   @InjectMocks
   private UserIndexer indexer;
 
   @Test
-  void shouldReturnRepositoryClass() {
+  void shouldReturnType() {
     assertThat(indexer.getType()).isEqualTo(User.class);
   }
 
-  @Test
-  void shouldReturnIndexName() {
-    assertThat(indexer.getIndex()).isEqualTo(UserIndexer.INDEX);
-  }
-
   @Test
   void shouldReturnVersion() {
     assertThat(indexer.getVersion()).isEqualTo(UserIndexer.VERSION);
@@ -71,28 +67,28 @@ class UserIndexerTest {
   @Nested
   class UpdaterTests {
 
-    @Mock
-    private Index index;
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Index<User> index;
 
     private final User user = UserTestData.createTrillian();
 
     @BeforeEach
     void open() {
-      when(indexQueue.getQueuedIndex(UserIndexer.INDEX)).thenReturn(index);
+      when(searchEngine.forType(User.class).getOrCreate()).thenReturn(index);
     }
 
     @Test
-    void shouldStoreRepository() {
+    void shouldStore() {
       indexer.open().store(user);
 
       verify(index).store(Id.of(user), "user:read:trillian", user);
     }
 
     @Test
-    void shouldDeleteByRepository() {
+    void shouldDeleteById() {
       indexer.open().delete(user);
 
-      verify(index).delete(Id.of(user), User.class);
+      verify(index.delete().byType()).byId(Id.of(user));
     }
 
     @Test
@@ -101,7 +97,7 @@ class UserIndexerTest {
 
       indexer.open().reIndexAll();
 
-      verify(index).deleteByType(User.class);
+      verify(index.delete().byType()).all();
       verify(index).store(Id.of(user), "user:read:trillian", user);
     }
 
@@ -111,7 +107,7 @@ class UserIndexerTest {
 
       indexer.handleEvent(event);
 
-      verify(index).delete(Id.of(user), User.class);
+      verify(index.delete().byType()).byId(Id.of(user));
     }
 
     @Test