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// 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 <iostream>
#include "parquet/api/reader.h"
#include "parquet/api/schema.h"
int main(int argc, char** argv) {
bool help_flag = false;
std::string filename;
for (int i = 1; i < argc; i++) {
if (!std::strcmp(argv[i], "-?") || !std::strcmp(argv[i], "-h") ||
!std::strcmp(argv[i], "--help")) {
help_flag = true;
} else {
filename = argv[i];
}
}
if (argc != 2 || help_flag) {
std::cerr << "Usage: parquet-dump-schema [-h] [--help]"
<< " <filename>" << std::endl;
return -1;
}
try {
std::unique_ptr<parquet::ParquetFileReader> reader =
parquet::ParquetFileReader::OpenFile(filename);
PrintSchema(reader->metadata()->schema()->schema_root().get(), std::cout);
} catch (const std::exception& e) {
std::cerr << "Parquet error: " << e.what() << std::endl;
return -1;
}
return 0;
}
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