split tera.h to several roles #964

include/tera/client.h

@@ -0,0 +1,111 @@
+// Copyright (c) 2015, Baidu.com, Inc. All Rights Reserved
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef  TERA_CLIENT_H_
+#define  TERA_CLIENT_H_
+
+#include <stdint.h>
+#include <list>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "error_code.h"
+#include "table.h"
+#include "table_descriptor.h"
+
+#pragma GCC visibility push(default)
+namespace tera {
+
+class Client {
+public:
+    /// 使用glog的用户必须调用此接口，避免glog被重复初始化
+    static void SetGlogIsInitialized();
+
+    static Client* NewClient(const std::string& confpath,
+                             const std::string& log_prefix,
+                             ErrorCode* err = NULL);
+
+    static Client* NewClient(const std::string& confpath,
+                             ErrorCode* err = NULL);
+
+    static Client* NewClient();
+
+    /// 创建表格
+    virtual bool CreateTable(const TableDescriptor& desc, ErrorCode* err) = 0;
+    virtual bool CreateTable(const TableDescriptor& desc,
+                             const std::vector<std::string>& tablet_delim,
+                             ErrorCode* err) = 0;
+    /// 更新表格Schema
+    virtual bool UpdateTable(const TableDescriptor& desc, ErrorCode* err) = 0;
+    virtual bool UpdateCheck(const std::string& table_name, bool* done, ErrorCode* err) = 0;
+    /// 删除表格
+    virtual bool DeleteTable(const std::string& name, ErrorCode* err) = 0;
+    /// 停止表格服务
+    virtual bool DisableTable(const std::string& name, ErrorCode* err) = 0;
+    /// 恢复表格服务
+    virtual bool EnableTable(const std::string& name, ErrorCode* err) = 0;
+
+    /// acl
+    virtual bool CreateUser(const std::string& user,
+                            const std::string& password, ErrorCode* err) = 0;
+    virtual bool DeleteUser(const std::string& user, ErrorCode* err) = 0;
+    virtual bool ChangePwd(const std::string& user,
+                           const std::string& password, ErrorCode* err) = 0;
+    virtual bool ShowUser(const std::string& user, std::vector<std::string>& user_groups,
+                          ErrorCode* err) = 0;
+    virtual bool AddUserToGroup(const std::string& user,
+                                const std::string& group, ErrorCode* err) = 0;
+    virtual bool DeleteUserFromGroup(const std::string& user,
+                                     const std::string& group, ErrorCode* err) = 0;
+    /// 打开表格, 失败返回NULL
+    virtual Table* OpenTable(const std::string& table_name, ErrorCode* err) = 0;
+    /// 获取表格分布信息
+    virtual bool GetTabletLocation(const std::string& table_name,
+                                   std::vector<TabletInfo>* tablets,
+                                   ErrorCode* err) = 0;
+    /// 获取表格Schema
+    virtual TableDescriptor* GetTableDescriptor(const std::string& table_name,
+                                                ErrorCode* err) = 0;
+
+    virtual bool List(std::vector<TableInfo>* table_list,
+                      ErrorCode* err) = 0;
+
+    virtual bool List(const std::string& table_name,
+                      TableInfo* table_info,
+                      std::vector<TabletInfo>* tablet_list,
+                      ErrorCode* err) = 0;
+
+    virtual bool IsTableExist(const std::string& table_name, ErrorCode* err) = 0;
+
+    virtual bool IsTableEnabled(const std::string& table_name, ErrorCode* err) = 0;
+
+    virtual bool IsTableEmpty(const std::string& table_name, ErrorCode* err) = 0;
+
+    virtual bool GetSnapshot(const std::string& name, uint64_t* snapshot, ErrorCode* err) = 0;
+    virtual bool DelSnapshot(const std::string& name, uint64_t snapshot,ErrorCode* err) = 0;
+    virtual bool Rollback(const std::string& name, uint64_t snapshot,
+                          const std::string& rollback_name, ErrorCode* err) = 0;
+
+    virtual bool CmdCtrl(const std::string& command,
+                         const std::vector<std::string>& arg_list,
+                         bool* bool_result,
+                         std::string* str_result,
+                         ErrorCode* err) = 0;
+    virtual bool Rename(const std::string& old_table_name,
+                        const std::string& new_table_name,
+                        ErrorCode* err) = 0 ;
+    Client() {}
+    virtual ~Client() {}
+
+private:
+    Client(const Client&);
+    void operator=(const Client&);
+};
+
+} // namespace tera
+#pragma GCC visibility pop
+
+#endif  // TERA_CLIENT_H_

include/tera/error_code.h

@@ -0,0 +1,50 @@
+// Copyright (c) 2015, Baidu.com, Inc. All Rights Reserved
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef  TERA_ERROR_CODE_
+#define  TERA_ERROR_CODE_
+
+#include <stdint.h>
+#include <list>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+#pragma GCC visibility push(default)
+namespace tera {
+
+class ErrorCode {
+public:
+    enum ErrorCodeType {
+        kOK = 0,
+        kNotFound,
+        kBadParam,
+        kSystem,
+        kTimeout,
+        kBusy,
+        kNoQuota,
+        kNoAuth,
+        kUnknown,
+        kNotImpl,
+        kTxnFail
+    };
+    ErrorCode();
+    std::string ToString() const;
+
+    std::string GetReason() const;
+    ErrorCodeType GetType() const;
+    void SetFailed(ErrorCodeType err, const std::string& reason = "");
+
+private:
+    ErrorCodeType _err;
+    std::string _reason;
+};
+
+const char* strerr(ErrorCode error_code);
+
+} // namespace tera
+#pragma GCC visibility pop
+
+#endif  // TERA_ERROR_CODE_

include/tera/mutation.h

@@ -0,0 +1,164 @@
+// Copyright (c) 2015, Baidu.com, Inc. All Rights Reserved
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef  TERA_MUTATION_H_
+#define  TERA_MUTATION_H_
+
+#include <stdint.h>
+#include <list>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+#pragma GCC visibility push(default)
+namespace tera {
+
+class RowLock {
+};
+
+class Transaction;
+class Table;
+/// 修改操作
+class RowMutation {
+/// rowkey的限制：大小 [0, 64KB)，任意二进制串
+public:
+    enum Type {
+        kPut,
+        kDeleteColumn,
+        kDeleteColumns,
+        kDeleteFamily,
+        kDeleteRow,
+        kAdd,
+        kPutIfAbsent,
+        kAppend,
+        kAddInt64
+    };
+    struct Mutation {
+        Type type;
+
+        /// 大小 [0, 64KB)，cf名本身是可打印字符串，不限制数量
+        std::string family;
+
+        /// 大小 [0, 64KB)，任意二进制串
+        std::string qualifier;
+
+        /// 大小 [0, 32MB)
+        std::string value;
+
+        int64_t timestamp;
+        int32_t ttl;
+    };
+
+    RowMutation();
+    virtual ~RowMutation();
+
+    virtual const std::string& RowKey() = 0;
+
+    virtual void Reset(const std::string& row_key) = 0;
+
+    /// 修改指定列
+    virtual void Put(const std::string& family, const std::string& qualifier,
+                     const int64_t value) = 0;
+    /// 修改指定列
+    virtual void Put(const std::string& family, const std::string& qualifier,
+                     const std::string& value) = 0;
+    /// 带TTL的修改一个列
+    virtual void Put(const std::string& family, const std::string& qualifier,
+                     const std::string& value, int32_t ttl) = 0;
+    // 原子加一个Cell
+    virtual void Add(const std::string& family, const std::string& qualifier,
+                     const int64_t delta) = 0;
+    // 原子加一个Cell
+    virtual void AddInt64(const std::string& family, const std::string& qualifier,
+                     const int64_t delta) = 0;
+
+    // 原子操作：如果不存在才能Put成功
+    virtual void PutIfAbsent(const std::string& family,
+                             const std::string& qualifier,
+                             const std::string& value) = 0;
+
+    /// 原子操作：追加内容到一个Cell
+    virtual void Append(const std::string& family, const std::string& qualifier,
+                        const std::string& value) = 0;
+
+    /// 修改一个列的特定版本
+    virtual void Put(const std::string& family, const std::string& qualifier,
+                     int64_t timestamp, const std::string& value) = 0;
+    /// 带TTL的修改一个列的特定版本
+    virtual void Put(const std::string& family, const std::string& qualifier,
+                     int64_t timestamp, const std::string& value, int32_t ttl) = 0;
+    /// 修改默认列
+    virtual void Put(const std::string& value) = 0;
+    /// 修改默认列
+    virtual void Put(const int64_t value) = 0;
+
+    /// 带TTL的修改默认列
+    virtual void Put(const std::string& value, int32_t ttl) = 0;
+
+    /// 修改默认列的特定版本
+    virtual void Put(int64_t timestamp, const std::string& value) = 0;
+
+    /// 删除一个列的最新版本
+    virtual void DeleteColumn(const std::string& family,
+                              const std::string& qualifier) = 0;
+    /// 删除一个列的指定版本
+    virtual void DeleteColumn(const std::string& family,
+                              const std::string& qualifier,
+                              int64_t timestamp) = 0;
+    /// 删除一个列的全部版本
+    virtual void DeleteColumns(const std::string& family,
+                               const std::string& qualifier) = 0;
+    /// 删除一个列的指定范围版本
+    virtual void DeleteColumns(const std::string& family,
+                               const std::string& qualifier,
+                               int64_t timestamp) = 0;
+    /// 删除一个列族的所有列的全部版本
+    virtual void DeleteFamily(const std::string& family) = 0;
+    /// 删除一个列族的所有列的指定范围版本
+    virtual void DeleteFamily(const std::string& family, int64_t timestamp) = 0;
+    /// 删除整行的全部数据
+    virtual void DeleteRow() = 0;
+    /// 删除整行的指定范围版本
+    virtual void DeleteRow(int64_t timestamp) = 0;
+
+    /// 修改锁住的行, 必须提供行锁
+    virtual void SetLock(RowLock* rowlock) = 0;
+    /// 设置超时时间(只影响当前操作,不影响Table::SetWriteTimeout设置的默认写超时)
+    virtual void SetTimeOut(int64_t timeout_ms) = 0;
+    /// 返回超时时间
+    virtual int64_t TimeOut() = 0;
+    /// 设置异步回调, 操作会异步返回
+    typedef void (*Callback)(RowMutation* param);
+    virtual void SetCallBack(Callback callback) = 0;
+    // 返回异步回调函数
+    virtual Callback GetCallBack() = 0;
+    /// 设置用户上下文，可在回调函数中获取
+    virtual void SetContext(void* context) = 0;
+    /// 获得用户上下文
+    virtual void* GetContext() = 0;
+    /// 获得结果错误码
+    virtual const ErrorCode& GetError() = 0;
+    /// 是否异步操作
+    virtual bool IsAsync() = 0;
+    /// 异步操作是否完成
+    /// !!! Not implemented
+    virtual bool IsFinished() const = 0;
+    /// mutation数量
+    virtual uint32_t MutationNum() = 0;
+    virtual uint32_t Size() = 0;
+    virtual uint32_t RetryTimes() = 0;
+    virtual const RowMutation::Mutation& GetMutation(uint32_t index) = 0;
+    /// 返回所属事务
+    virtual Transaction* GetTransaction() = 0;
+
+private:
+    RowMutation(const RowMutation&);
+    void operator=(const RowMutation&);
+};
+
+} // namespace tera
+#pragma GCC visibility pop
+
+#endif  // TERA_MUTATION_H_