fix: 搜索main路径跑通

backend/src/main/java/com/openisle/search/OpenSearchIndexer.java

@@ -24,14 +24,12 @@ public class OpenSearchIndexer implements SearchIndexer {
         builder.index(index).id(document.entityId().toString()).document(document)
       );
       IndexResponse response = client.index(request);
-      if (log.isDebugEnabled()) {
-        log.debug(
-          "Indexed document {} into {} with result {}",
-          document.entityId(),
-          index,
-          response.result()
-        );
-      }
+      log.info(
+        "Indexed document {} into {} with result {}",
+        document.entityId(),
+        index,
+        response.result()
+      );
     } catch (IOException e) {
       log.warn("Failed to index document {} into {}", document.entityId(), index, e);
     }

backend/src/main/java/com/openisle/search/SearchDocument.java

@@ -1,6 +1,5 @@
 package com.openisle.search;
 
-import java.time.Instant;
 import java.util.List;
 
 public record SearchDocument(
@@ -12,5 +11,5 @@ public record SearchDocument(
   String category,
   List<String> tags,
   Long postId,
-  Instant createdAt
+  Long createdAt
 ) {}

backend/src/main/java/com/openisle/search/SearchDocumentFactory.java

@@ -5,7 +5,6 @@ import com.openisle.model.Comment;
 import com.openisle.model.Post;
 import com.openisle.model.Tag;
 import com.openisle.model.User;
-import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.Collections;
@@ -38,7 +37,7 @@ public final class SearchDocumentFactory {
       post.getCategory() != null ? post.getCategory().getName() : null,
       tags,
       post.getId(),
-      toInstant(post.getCreatedAt())
+      toEpochMillis(post.getCreatedAt())
     );
   }
 
@@ -64,7 +63,7 @@ public final class SearchDocumentFactory {
       post != null && post.getCategory() != null ? post.getCategory().getName() : null,
       tags,
       post != null ? post.getId() : null,
-      toInstant(comment.getCreatedAt())
+      toEpochMillis(comment.getCreatedAt())
     );
   }
 
@@ -81,7 +80,7 @@ public final class SearchDocumentFactory {
       null,
       Collections.emptyList(),
       null,
-      toInstant(user.getCreatedAt())
+      toEpochMillis(user.getCreatedAt())
     );
   }
 
@@ -115,11 +114,14 @@ public final class SearchDocumentFactory {
       null,
       Collections.emptyList(),
       null,
-      toInstant(tag.getCreatedAt())
+      toEpochMillis(tag.getCreatedAt())
     );
   }
 
-  private static Instant toInstant(LocalDateTime time) {
-    return time == null ? null : time.atZone(ZoneId.systemDefault()).toInstant();
+  private static Long toEpochMillis(LocalDateTime time) {
+    if (time == null) {
+      return null;
+    }
+    return time.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
   }
 }

backend/src/main/java/com/openisle/search/SearchIndexInitializer.java

@@ -53,7 +53,10 @@ public class SearchIndexInitializer {
         .properties("category", Property.of(p -> p.keyword(k -> k)))
         .properties("tags", Property.of(p -> p.keyword(k -> k)))
         .properties("postId", Property.of(p -> p.long_(l -> l)))
-        .properties("createdAt", Property.of(p -> p.date(d -> d)))
+        .properties(
+          "createdAt",
+          Property.of(p -> p.date(d -> d.format("strict_date_optional_time||epoch_millis")))
+        )
     );
   }
 
@@ -67,7 +70,10 @@ public class SearchIndexInitializer {
         .properties("category", Property.of(p -> p.keyword(k -> k)))
         .properties("tags", Property.of(p -> p.keyword(k -> k)))
         .properties("postId", Property.of(p -> p.long_(l -> l)))
-        .properties("createdAt", Property.of(p -> p.date(d -> d)))
+        .properties(
+          "createdAt",
+          Property.of(p -> p.date(d -> d.format("strict_date_optional_time||epoch_millis")))
+        )
     );
   }
 
@@ -77,7 +83,10 @@ public class SearchIndexInitializer {
         .properties("type", Property.of(p -> p.keyword(k -> k)))
         .properties("title", Property.of(p -> p.text(t -> t)))
         .properties("content", Property.of(p -> p.text(t -> t)))
-        .properties("createdAt", Property.of(p -> p.date(d -> d)))
+        .properties(
+          "createdAt",
+          Property.of(p -> p.date(d -> d.format("strict_date_optional_time||epoch_millis")))
+        )
     );
   }
 
@@ -96,7 +105,10 @@ public class SearchIndexInitializer {
         .properties("type", Property.of(p -> p.keyword(k -> k)))
         .properties("title", Property.of(p -> p.text(t -> t)))
         .properties("content", Property.of(p -> p.text(t -> t)))
-        .properties("createdAt", Property.of(p -> p.date(d -> d)))
+        .properties(
+          "createdAt",
+          Property.of(p -> p.date(d -> d.format("strict_date_optional_time||epoch_millis")))
+        )
     );
   }
 }