검색시 boolean mode로 변경

backend/src/main/java/codezap/template/repository/FullTextFunctionContributor.java

@@ -8,7 +8,7 @@
 public class FullTextFunctionContributor implements FunctionContributor {
 
     private static final String FUNCTION_NAME = "fulltext_match";
-    private static final String MATCH_AGAINST_FUNCTION = "match(?1, ?2) against(?3)";
+    private static final String MATCH_AGAINST_FUNCTION = "match(?1, ?2) against(?3 in boolean mode)";
 
     @Override
     public void contributeFunctions(FunctionContributions functionContributions) {

backend/src/main/java/codezap/template/repository/TemplateSearchExpressionProvider.java

@@ -13,18 +13,14 @@
 
 import codezap.template.domain.Visibility;
 import codezap.template.repository.strategy.FullTextSearchSearchStrategy;
-import codezap.template.repository.strategy.LikeSearchStrategy;
 import lombok.RequiredArgsConstructor;
 
 @Component
 @RequiredArgsConstructor
 public class TemplateSearchExpressionProvider {
 
-    private final LikeSearchStrategy likeSearchStrategy;
     private final FullTextSearchSearchStrategy fullTextSearchStrategy;
 
-    private static final int MINIMUM_KEYWORD_LENGTH = 3;
-
     public BooleanExpression filterMember(Long memberId) {
         return Optional.ofNullable(memberId)
                 .map(template.member.id::eq)
@@ -60,15 +56,7 @@ public BooleanExpression matchesKeyword(String keyword) {
         return Optional.ofNullable(keyword)
                 .filter(k -> !k.isBlank())
                 .map(String::trim)
-                .map(this::createKeywordMatchExpression)
+                .map(fullTextSearchStrategy::matchedKeyword)
                 .orElse(null);
     }
-
-    private BooleanExpression createKeywordMatchExpression(String trimmedKeyword) {
-        if (trimmedKeyword.length() < MINIMUM_KEYWORD_LENGTH) {
-            return likeSearchStrategy.matchedKeyword(trimmedKeyword);
-        }
-
-        return fullTextSearchStrategy.matchedKeyword(trimmedKeyword);
-    }
 }

backend/src/main/java/codezap/template/repository/strategy/FullTextSearchSearchStrategy.java

@@ -3,6 +3,9 @@
 import static codezap.template.domain.QSourceCode.sourceCode;
 import static codezap.template.domain.QTemplate.template;
 
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
 import org.springframework.stereotype.Component;
 
 import com.querydsl.core.types.dsl.BooleanExpression;
@@ -21,8 +24,9 @@ public class FullTextSearchSearchStrategy implements SearchStrategy {
 
     @Override
     public BooleanExpression matchedKeyword(String trimmedKeyword) {
-        NumberExpression<Double> titleScore = getMatchedAccuracy(template.title, template.description, trimmedKeyword);
-        NumberExpression<Double> sourceCodeScore = getMatchedAccuracy(sourceCode.filename, sourceCode.content, trimmedKeyword);
+        String parsedKeyword = parseKeyword(trimmedKeyword);
+        NumberExpression<Double> titleScore = getMatchedAccuracy(template.title, template.description, parsedKeyword);
+        NumberExpression<Double> sourceCodeScore = getMatchedAccuracy(sourceCode.filename, sourceCode.content, parsedKeyword);
         return titleScore.gt(NO_MATCHED_SCORE).or(
                 template.id.in(JPAExpressions
                         .select(sourceCode.template.id)
@@ -32,6 +36,13 @@ public BooleanExpression matchedKeyword(String trimmedKeyword) {
         );
     }
 
+    private String parseKeyword(String trimmedKeyword) {
+        String[] parsedKeywords = trimmedKeyword.split(" ");
+        return Arrays.stream(parsedKeywords)
+                .map(keyword -> "+" + keyword)
+                .collect(Collectors.joining(" "));
+    }
+
     private NumberExpression<Double> getMatchedAccuracy(Object... args) {
         return Expressions.numberTemplate(Double.class,
                 MATCH_FUNCTION,

backend/src/test/java/codezap/global/repository/RepositoryTest.java

@@ -19,7 +19,6 @@
 import codezap.global.rds.DataSourceConfig;
 import codezap.template.repository.TemplateSearchExpressionProvider;
 import codezap.template.repository.strategy.FullTextSearchSearchStrategy;
-import codezap.template.repository.strategy.LikeSearchStrategy;
 
 @Target({ElementType.TYPE})
 @Retention(RetentionPolicy.RUNTIME)
@@ -29,7 +28,6 @@
         DataSourceConfig.class,
         QueryDSLConfig.class,
         TemplateSearchExpressionProvider.class,
-        LikeSearchStrategy.class,
         FullTextSearchSearchStrategy.class,
         FixedPageCounter.class
 })

backend/src/test/java/codezap/template/repository/TemplateSearchRepositoryTest.java

@@ -33,15 +33,13 @@
 import codezap.template.domain.Template;
 import codezap.template.domain.Visibility;
 import codezap.template.repository.strategy.FullTextSearchSearchStrategy;
-import codezap.template.repository.strategy.LikeSearchStrategy;
 
 @DataJpaTest(includeFilters = @ComponentScan.Filter(type = FilterType.ANNOTATION, classes = Repository.class), useDefaultFilters = false)
 @Import({
         JpaAuditingConfiguration.class,
         DataSourceConfig.class,
         QueryDSLConfig.class,
         TemplateSearchExpressionProvider.class,
-        LikeSearchStrategy.class,
         FullTextSearchSearchStrategy.class,
         FixedPageCounter.class,
 })

backend/src/test/java/codezap/template/service/TemplateSearchServiceTest.java

@@ -299,7 +299,7 @@ void findAllSuccessByMemberIdAndVisibility() {
         @DisplayName("검색 기능: 모든 검색 기준으로 템플릿 목록 조회 성공")
         void findAllSuccessWithAllCriteria() {
             Long memberId = member1.getId();
-            String keyword = "안녕하세요";
+            String keyword = "안녕";
             Long categoryId = category1.getId();
             List<Long> tagIds = List.of(tag1.getId(), tag2.getId());
             Visibility visibility = Visibility.PUBLIC;