[ASTS] feat(bucket-retrieval): Sweep timestamp manager (#7184)

atlasdb-impl-shared/src/main/java/com/palantir/atlasdb/sweep/asts/DefaultShardedSweepTimestampManager.java

@@ -0,0 +1,46 @@
+/*
+ * (c) Copyright 2024 Palantir Technologies Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.palantir.atlasdb.sweep.asts;
+
+import com.palantir.atlasdb.sweep.Sweeper;
+import com.palantir.atlasdb.sweep.queue.ShardAndStrategy;
+import com.palantir.atlasdb.sweep.queue.ShardProgress;
+import com.palantir.atlasdb.sweep.queue.SpecialTimestampsSupplier;
+
+public final class DefaultShardedSweepTimestampManager implements ShardedSweepTimestampManager {
+    private final SpecialTimestampsSupplier specialTimestampsSupplier;
+    private final ShardProgress shardProgress;
+
+    private DefaultShardedSweepTimestampManager(
+            SpecialTimestampsSupplier specialTimestampsSupplier, ShardProgress shardProgress) {
+        this.specialTimestampsSupplier = specialTimestampsSupplier;
+        this.shardProgress = shardProgress;
+    }
+
+    public static ShardedSweepTimestampManager create(
+            SpecialTimestampsSupplier specialTimestampsSupplier, ShardProgress progress) {
+        return new DefaultShardedSweepTimestampManager(specialTimestampsSupplier, progress);
+    }
+
+    @Override
+    public SweepTimestamps getSweepTimestamps(ShardAndStrategy shardAndStrategy) {
+        return SweepTimestamps.builder()
+                .sweepTimestamp(Sweeper.of(shardAndStrategy).getSweepTimestamp(specialTimestampsSupplier))
+                .lastSweptTimestamp(shardProgress.getLastSweptTimestamp(shardAndStrategy))
+                .build();
+    }
+}