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2021-05-31 22:56:52 +08:00
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src/sql/executor/ob_remote_job_executor.cpp Normal file
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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.
*/
#define USING_LOG_PREFIX SQL_EXE
#include "lib/container/ob_array.h"
#include "sql/engine/ob_exec_context.h"
#include "sql/executor/ob_job.h"
#include "sql/executor/ob_task_info.h"
#include "sql/executor/ob_remote_job_executor.h"
namespace oceanbase {
namespace sql {
using namespace oceanbase::common;
ObRemoteJobExecutor::ObRemoteJobExecutor() : job_(NULL), executor_(NULL)
{}
ObRemoteJobExecutor::~ObRemoteJobExecutor()
{}
int ObRemoteJobExecutor::execute(ObExecContext& query_ctx)
{
int ret = OB_SUCCESS;
ObTaskInfo* task_info = NULL;
if (OB_ISNULL(job_) || OB_ISNULL(executor_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("job_ or executor_ is NULL", K(ret), K(job_), K(executor_));
} else if (OB_FAIL(get_executable_task(query_ctx, task_info))) { // get task info
LOG_WARN("fail get a executable task", K(ret));
} else if (OB_ISNULL(task_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("task info is NULL", K(ret));
} else if (OB_FAIL(executor_->execute(query_ctx, job_,
task_info))) { // job_ + task_info as task's frame and param
LOG_WARN("fail execute task", K(ret), K(*task_info));
} else {
}
return ret;
}
int ObRemoteJobExecutor::get_executable_task(ObExecContext& ctx, ObTaskInfo*& task_info)
{
int ret = OB_SUCCESS;
ObTaskControl* tq = NULL;
ObArray<ObTaskInfo*> ready_tasks;
if (OB_ISNULL(job_) || OB_ISNULL(executor_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("job_ or executor_ is NULL", K(ret), K(job_), K(executor_));
} else if (OB_FAIL(job_->get_task_control(ctx, tq))) {
LOG_WARN("fail get task control", K(ret));
} else if (OB_ISNULL(tq)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("succ to get task control, but task control is NULL", K(ret));
} else if (OB_FAIL(tq->get_ready_tasks(ready_tasks))) {
LOG_WARN("fail get ready task", K(ret));
} else if (OB_UNLIKELY(1 != ready_tasks.count())) {
LOG_WARN("unexpected ready task count", "count", ready_tasks.count());
} else if (OB_FAIL(ready_tasks.at(0, task_info))) {
LOG_WARN("fail get task from array", K(ret));
} else {
}
return ret;
}
} // namespace sql
} // namespace oceanbase