feat(common): introduce MetadataService

Signed-off-by: SSpirits <[email protected]>

common/src/main/java/com/automq/rocketmq/common/metadata/MetadataService.java

@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.automq.rocketmq.common.metadata;
+
+public interface MetadataService {
+    long getStreamId(long topicId, long queueId);
+
+    long getOperationLogStreamId(long topicId, long queueId);
+
+    long getRetryStreamId(long consumerGroupId, long topicId, long queueId);
+
+    long getDeadLetterStreamId(long consumerGroupId, long topicId, long queueId);
+
+    // Each time pop will advance the consumer offset by batch size.
+    // Metadata service will cache the consumer offset in memory, and periodically commit to Controller.
+    void advanceConsumeOffset(long consumerGroupId, long topicId, long queueId, long offset);
+}

store/src/main/java/com/automq/rocketmq/store/service/impl/StreamOperationLogService.java

@@ -27,16 +27,15 @@
 import java.util.concurrent.CompletableFuture;
 
 public class StreamOperationLogService implements OperationLogService {
-    private StreamStore streamStore;
+    private final StreamStore streamStore;
 
     public StreamOperationLogService(StreamStore streamStore) {
         this.streamStore = streamStore;
     }
 
     @Override
     public CompletableFuture<Long> logPopOperation(long consumeGroupId, long topicId, int queueId, long offset,
-        int batchSize,
-        boolean isOrder, long invisibleDuration, long operationTimestamp) {
+        int batchSize, boolean isOrder, long invisibleDuration, long operationTimestamp) {
         // TODO: get the stream id from metadata server.
         CompletableFuture<AppendResult> append = streamStore.append(0, new SingleRecord(operationTimestamp,
             ByteBuffer.wrap(SerializeUtil.encodePopOperation(consumeGroupId, topicId, queueId, offset, batchSize, isOrder, invisibleDuration, operationTimestamp))));