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fix(shadow): start queue cursor at database time

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zgw
2026-08-28 10:17:16 +08:00
parent cf0a98247e
commit 01c94663c2
3 changed files with 11 additions and 2 deletions
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4
ruoyi-wcs-shadow/src/main/java/com/ruoyi/shadow/facts/ShadowReadCursor.java
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@@ -35,4 +35,8 @@ public final class ShadowReadCursor {
public Instant getLastCreateDate() { return lastCreateDate; }
public Instant getOverlapStart() { return lastCreateDate; }
public String getLastGuid() { return lastGuid; }
public boolean isInitial() {
return BEGINNING.equals(lastCreateDate) && lastGuid.isEmpty();
}
}

8
ruoyi-wcs-shadow/src/main/java/com/ruoyi/shadow/facts/SqlServerShadowFactReader.java
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@@ -69,7 +69,7 @@ public final class SqlServerShadowFactReader {
}
try {
ShadowFactBatch batch = sourceTransaction.execute(status ->
collect(cursor.withOverlap(CURSOR_OVERLAP), deadline));
collect(cursor, deadline));
if (batch == null) {
throw new ShadowFactReadException("SOURCE_EMPTY_BATCH",
Duration.ZERO);
@@ -94,7 +94,11 @@ public final class SqlServerShadowFactReader {
private ShadowFactBatch collect(ShadowReadCursor cursor, Instant deadline) {
ensureTime(deadline);
Instant databaseStartedAt = source.readDatabaseClock(deadline);
List<ShadowQueueFact> queues = immutable(source.readQueues(cursor, deadline));
ShadowReadCursor queryCursor = cursor.isInitial()
? new ShadowReadCursor(databaseStartedAt, "") : cursor;
queryCursor = queryCursor.withOverlap(CURSOR_OVERLAP);
List<ShadowQueueFact> queues = immutable(source.readQueues(
queryCursor, deadline));
requireLimit("QUEUE", queues.size(), QUEUE_LIMIT);
List<ShadowVehicleFact> vehicles =
immutable(source.readVehicles(deadline));

1
ruoyi-wcs-shadow/src/test/java/com/ruoyi/shadow/facts/SqlServerShadowFactReaderTest.java
View File

@@ -61,6 +61,7 @@ class SqlServerShadowFactReaderTest {
siteIds(batch.getMaps()));
assertEquals(3, batch.getSourceQueues().size());
assertEquals("070502", batch.vehicle("1").getCurrentSite());
assertEquals(NOW.minusMillis(5_500), source.cursor.getOverlapStart());
assertTrue(batch.getDatabaseCapturedAt().isBefore(NOW.plusSeconds(4)));
assertEquals(1, transactions.calls);
assertTrue(transactions.readOnly);