fix: avoid jt808 fallback ids as vin

modules/protocols/protocol-jt808/src/main/java/com/lingniu/ingest/protocol/jt808/inbound/Jt808ChannelHandler.java

@@ -177,20 +177,20 @@ public class Jt808ChannelHandler extends SimpleChannelInboundHandler<Object> {
     private IdentityResolution resolveIdentity(Jt808Message msg) {
         String phone = msg.header().phone();
         if (identityResolver == null) {
-            // 没有绑定表时用手机号兜底为 VIN，保证会话/下行仍可按 phone 找到连接。
+            // 没有绑定表时不伪造 VIN；phone 会保留在 metadata/session 中用于下行定位。
             return new IdentityResolution(
-                    new VehicleIdentity(phone, false, VehicleIdentitySource.FALLBACK_PHONE),
+                    new VehicleIdentity("unknown", false, VehicleIdentitySource.FALLBACK_PHONE),
                     null);
         }
         try {
             // 优先把 JT808 phone/device/plate 映射到内部 VIN，后续所有事件都用内部 VIN 做主键。
             return new IdentityResolution(
-                    identityResolver.resolve(new VehicleIdentityLookup(
+                    normalizeUnresolvedIdentity(identityResolver.resolve(new VehicleIdentityLookup(
                             ProtocolId.JT808,
                             "",
                             phone,
                             deviceId(msg.body()),
-                            plate(msg.body()))),
+                            plate(msg.body())))),
                     null);
         } catch (RuntimeException e) {
             return new IdentityResolution(
@@ -199,6 +199,16 @@ public class Jt808ChannelHandler extends SimpleChannelInboundHandler<Object> {
         }
     }
 
+    private static VehicleIdentity normalizeUnresolvedIdentity(VehicleIdentity identity) {
+        if (identity == null) {
+            return new VehicleIdentity("unknown", false, VehicleIdentitySource.UNKNOWN);
+        }
+        if (identity.resolved()) {
+            return identity;
+        }
+        return new VehicleIdentity("unknown", false, identity.source());
+    }
+
     private void dispatchFrameError(ChannelHandlerContext ctx, Jt808MalformedFrame malformed) {
         String peer = malformed.peer() == null || malformed.peer().isBlank() ? addr(ctx) : malformed.peer();
         dispatchMalformed(peer, malformed.rawBytes(), malformed.reason(), true);

modules/protocols/protocol-jt808/src/main/java/com/lingniu/ingest/protocol/jt808/mapper/Jt808EventMapper.java

@@ -173,8 +173,8 @@ public final class Jt808EventMapper implements EventMapper<Jt808Message> {
         }
         var header = message.header();
         try {
-            return IdentityResolution.ok(identityResolver.resolve(new VehicleIdentityLookup(
-                    ProtocolId.JT808, "", header.phone(), deviceId(message.body()), plate(message.body()))));
+            return IdentityResolution.ok(normalizeUnresolvedIdentity(identityResolver.resolve(new VehicleIdentityLookup(
+                    ProtocolId.JT808, "", header.phone(), deviceId(message.body()), plate(message.body())))));
         } catch (RuntimeException e) {
             return new IdentityResolution(
                     new VehicleIdentity("unknown", false, VehicleIdentitySource.UNKNOWN),
@@ -182,6 +182,16 @@ public final class Jt808EventMapper implements EventMapper<Jt808Message> {
         }
     }
 
+    private static VehicleIdentity normalizeUnresolvedIdentity(VehicleIdentity identity) {
+        if (identity == null) {
+            return new VehicleIdentity("unknown", false, VehicleIdentitySource.UNKNOWN);
+        }
+        if (identity.resolved()) {
+            return identity;
+        }
+        return new VehicleIdentity("unknown", false, identity.source());
+    }
+
     private static Map<String, String> baseMeta(Jt808Header header, IdentityResolution identity) {
         java.util.HashMap<String, String> meta = new java.util.HashMap<>();
         meta.put("messageId", "0x" + Integer.toHexString(header.messageId()));

modules/protocols/protocol-jt808/src/test/java/com/lingniu/ingest/protocol/jt808/inbound/Jt808ChannelHandlerTest.java

@@ -197,6 +197,46 @@ class Jt808ChannelHandlerTest {
         eventBus.close();
     }
 
+    @Test
+    void unboundLocationArchiveUsesUnknownVinInsteadOfPhoneFallback() throws Exception {
+        RecordingSink sink = new RecordingSink(1);
+        DisruptorEventBus eventBus = new DisruptorEventBus(1024, "blocking", List.of(sink));
+        AsyncBatchExecutor batchExecutor = new AsyncBatchExecutor(eventBus::publish);
+        Dispatcher dispatcher = new Dispatcher(
+                new HandlerRegistry(),
+                new InterceptorChain(List.of()),
+                new HandlerInvoker(),
+                eventBus,
+                batchExecutor);
+        InMemoryVehicleIdentityService identity = new InMemoryVehicleIdentityService();
+        Jt808ChannelHandler handler = new Jt808ChannelHandler(
+                new Jt808MessageDecoder(new BodyParserRegistry(List.of(new LocationBodyParser()))),
+                dispatcher,
+                new InMemorySessionStore(),
+                identity,
+                new Jt808ChannelRegistry(),
+                new Jt808PendingRequests());
+        EmbeddedChannel channel = new EmbeddedChannel(handler);
+        byte[] frame = buildFrame(Jt808MessageId.TERMINAL_LOCATION, "123456789012", 1, buildLocationBody());
+
+        channel.writeInbound(frame);
+
+        assertThat(sink.await()).isTrue();
+        assertThat(sink.events).singleElement().satisfies(event -> {
+            assertThat(event).isInstanceOf(VehicleEvent.RawArchive.class);
+            VehicleEvent.RawArchive archive = (VehicleEvent.RawArchive) event;
+            assertThat(archive.vin()).isEqualTo("unknown");
+            assertThat(archive.metadata())
+                    .containsEntry("vin", "unknown")
+                    .containsEntry("phone", "123456789012")
+                    .containsEntry("identityResolved", "false")
+                    .containsEntry("identitySource", "FALLBACK_PHONE");
+        });
+
+        batchExecutor.close();
+        eventBus.close();
+    }
+
     @Test
     void malformedFrameIsArchivedAndDispatchedAsPassthrough() throws Exception {
         RecordingSink sink = new RecordingSink(2);

modules/protocols/protocol-jt808/src/test/java/com/lingniu/ingest/protocol/jt808/mapper/Jt808EventMapperTest.java

@@ -34,10 +34,12 @@ class Jt808EventMapperTest {
         assertThat(events).hasSize(1);
         assertThat(events.get(0)).isInstanceOf(VehicleEvent.Location.class);
         assertThat(events.get(0).source()).isEqualTo(ProtocolId.JT808);
-        assertThat(events.get(0).vin()).isEqualTo("123456789012");
+        assertThat(events.get(0).vin()).isEqualTo("unknown");
         assertThat(events.get(0).metadata())
-                .containsEntry("vin", "123456789012")
-                .containsEntry("identityResolved", "false");
+                .containsEntry("vin", "unknown")
+                .containsEntry("phone", "123456789012")
+                .containsEntry("identityResolved", "false")
+                .containsEntry("identitySource", "FALLBACK_PHONE");
     }
 
     @Test
@@ -197,7 +199,10 @@ class Jt808EventMapperTest {
                     assertThat(passthrough.passthroughType()).isEqualTo(0x0F01);
                     assertThat(passthrough.data()).containsExactly(0x11, 0x22, 0x33);
                     assertThat(passthrough.metadata())
-                            .containsEntry("vin", "123456789012")
+                            .containsEntry("vin", "unknown")
+                            .containsEntry("phone", "123456789012")
+                            .containsEntry("identityResolved", "false")
+                            .containsEntry("identitySource", "FALLBACK_PHONE")
                             .containsEntry("rawBody", "true");
                 });
     }