| // 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. |
| |
| #ifndef IMPALA_RUNTIME_HBASE_HTABLE_H_ |
| #define IMPALA_RUNTIME_HBASE_HTABLE_H_ |
| |
| #include <boost/thread.hpp> |
| #include <jni.h> |
| #include <string> |
| |
| #include "common/status.h" |
| |
| namespace impala { |
| |
| class RuntimeState; |
| |
| /// Class to wrap JNI calls into Table. |
| class HBaseTable { |
| public: |
| HBaseTable(const std::string& table_name, jobject connection); |
| ~HBaseTable(); |
| |
| /// Close and release the Table wrapped by this class. |
| void Close(RuntimeState* state); |
| |
| /// Create all needed java side objects. |
| Status Init(); |
| |
| /// From a java Scan object get a result scanner that will iterate over |
| /// KeyValues from HBase. |
| Status GetResultScanner(const jobject& scan, jobject* result_scanner); |
| |
| /// Send an list of puts to hbase through a Table. |
| Status Put(const jobject& puts_list); |
| |
| /// Call this to initialize the HBase Table jni references |
| static Status InitJNI(); |
| |
| private: |
| std::string table_name_; |
| jobject connection_; |
| jobject table_; |
| |
| /// org.apache.hadoop.hbase.client.Table |
| static jclass table_cl_; |
| |
| /// org.apache.hadoop.hbase.client.Connection |
| static jclass connection_cl_; |
| |
| /// connection.getTable(TableName) |
| static jmethodID connection_get_table_id_; |
| |
| /// table.close() |
| static jmethodID table_close_id_; |
| |
| /// table.getScannerId(Scan) |
| static jmethodID table_get_scanner_id_; |
| |
| /// table.put(List<Put> puts |
| static jmethodID table_put_id_; |
| |
| /// TableName class and static methods |
| static jclass table_name_cl_; |
| |
| /// TableName.valueOf(String) |
| static jmethodID table_name_value_of_id_; |
| }; |
| |
| } // namespace impala |
| #endif /* IMPALA_RUNTIME_HBASE_HTABLE_H_ */ |