cpp/src/reader/tsfile_reader.cc

/*
 * 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.
 */
#include "tsfile_reader.h"

#include "tsfile_executor.h"

using namespace common;
using namespace storage;

namespace storage {

TsFileReader::TsFileReader() : read_file_(nullptr), tsfile_executor_(nullptr) {}

TsFileReader::~TsFileReader() {
    if (tsfile_executor_ != nullptr) {
        delete tsfile_executor_;
        tsfile_executor_ = nullptr;
    }
    if (read_file_ != nullptr) {
        read_file_->close();
        delete read_file_;
        read_file_ = nullptr;
    }
}

int TsFileReader::open(const std::string &file_path) {
    int ret = E_OK;
    read_file_ = new storage::ReadFile;
    tsfile_executor_ = new storage::TsFileExecutor();
    if (RET_FAIL(read_file_->open(file_path))) {
        std::cout << "filed to open file " << ret << std::endl;
    } else if (RET_FAIL(tsfile_executor_->init(read_file_))) {
        std::cout << "filed to init " << ret << std::endl;
    }
    return ret;
}

int TsFileReader::query(QueryExpression *qe, QueryDataSet *&ret_qds) {
    return tsfile_executor_->execute(qe, ret_qds);
}

void TsFileReader::destroy_query_data_set(storage::QueryDataSet *qds) {
    tsfile_executor_->destroy_query_data_set(qds);
}

QueryDataSet *TsFileReader::read_timeseries(
    const std::string &device_name, std::vector<std::string> measurement_name) {
    return nullptr;
}

}  // namespace storage