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src/share/ob_root_addr_agent.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_SHARE_OB_ROOT_ADDR_AGENT_H_
+#define OCEANBASE_SHARE_OB_ROOT_ADDR_AGENT_H_
+
+#include "lib/container/ob_iarray.h"
+#include "partition_table/ob_partition_location.h"
+#include "share/ob_cluster_type.h"  // ObClusterType
+
+namespace oceanbase {
+namespace common {
+class ObServerConfig;
+class ObMySQLProxy;
+}  // namespace common
+namespace share {
+typedef ObReplicaLocation ObRootAddr;
+typedef common::ObSArray<ObRootAddr> ObAddrList;
+typedef common::ObIArray<ObRootAddr> ObIAddrList;
+
+// store and fetch root server address list interface.
+class ObRootAddrAgent {
+  public:
+  ObRootAddrAgent() : inited_(false), config_(NULL)
+  {}
+  virtual ~ObRootAddrAgent()
+  {}
+
+  virtual int init(common::ObServerConfig& config);
+  virtual bool is_valid();
+
+  virtual int store(const ObIAddrList& addr_list, const ObIAddrList& readonly_addr_list, const bool force,
+      const common::ObClusterType cluster_type, const int64_t timestamp) = 0;
+  virtual int fetch(ObIAddrList& add_list, ObIAddrList& readonly_addr_list, common::ObClusterType& cluster_typ) = 0;
+  virtual int delete_cluster(const int64_t cluster_id) = 0;
+  virtual int fetch_remote_rslist(const int64_t cluster_id, ObIAddrList& addr_list, ObIAddrList& readonly_addr_list,
+      common::ObClusterType& cluster_type) = 0;
+
+  protected:
+  bool inited_;
+  common::ObServerConfig* config_;
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObRootAddrAgent);
+};
+
+inline int ObRootAddrAgent::init(common::ObServerConfig& config)
+{
+  int ret = common::OB_SUCCESS;
+  if (inited_) {
+    ret = common::OB_INIT_TWICE;
+    SHARE_LOG(WARN, "init twice", K(ret));
+  } else {
+    config_ = &config;
+    inited_ = true;
+  }
+  return ret;
+};
+
+inline bool ObRootAddrAgent::is_valid()
+{
+  return inited_;
+}
+
+}  // end namespace share
+}  // namespace oceanbase
+
+#endif  // OCEANBASE_SHARE_OB_ROOT_ADDR_AGENT_H_