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WIP: Enable dependencies of Google BigQuery
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48 changes: 48 additions & 0 deletions
48
velox/connectors/hive/storage_adapters/bigquery/CMakeLists.txt
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| find_package(google_cloud_cpp_bigquery REQUIRED) | ||
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| # Once the bigquery_client package is found, define new targets. | ||
| add_executable(bq-quickstart quickstart.cc) | ||
| target_link_libraries(bq-quickstart | ||
| google-cloud-cpp::bigquery | ||
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| protobuf::libprotobuf | ||
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| absl::absl_check | ||
| absl::absl_log | ||
| absl::algorithm | ||
| absl::base | ||
| absl::bind_front | ||
| absl::bits | ||
| absl::btree | ||
| absl::cleanup | ||
| absl::cord | ||
| absl::core_headers | ||
| absl::debugging | ||
| absl::die_if_null | ||
| absl::dynamic_annotations | ||
| absl::flags | ||
| absl::flat_hash_map | ||
| absl::flat_hash_set | ||
| absl::function_ref | ||
| absl::hash | ||
| absl::if_constexpr | ||
| absl::layout | ||
| absl::log_initialize | ||
| absl::log_severity | ||
| absl::memory | ||
| absl::node_hash_map | ||
| absl::node_hash_set | ||
| absl::optional | ||
| absl::span | ||
| absl::status | ||
| absl::statusor | ||
| absl::strings | ||
| absl::synchronization | ||
| absl::time | ||
| absl::type_traits | ||
| absl::utility | ||
| absl::variant | ||
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| utf8_range::utf8_validity | ||
| ) |
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velox/connectors/hive/storage_adapters/bigquery/quickstart.cc
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| // Copyright 2021 Google LLC | ||
| // | ||
| // Licensed 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 | ||
| // | ||
| // https://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. | ||
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| //! [START bigquerystorage_quickstart] [all] | ||
| #include "google/cloud/bigquery/storage/v1/bigquery_read_client.h" | ||
| #include <iostream> | ||
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| namespace { | ||
| void ProcessRowsInAvroFormat( | ||
| ::google::cloud::bigquery::storage::v1::AvroSchema const&, | ||
| ::google::cloud::bigquery::storage::v1::AvroRows const&) { | ||
| // Code to deserialize avro rows should be added here. | ||
| } | ||
| } // namespace | ||
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| int main(int argc, char* argv[]) try { | ||
| if (argc != 3) { | ||
| std::cerr << "Usage: " << argv[0] << " <project-id> <table-name>\n"; | ||
| return 1; | ||
| } | ||
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| // project_name should be in the format "projects/<your-gcp-project>" | ||
| std::string const project_name = "projects/" + std::string(argv[1]); | ||
| // table_name should be in the format: | ||
| // "projects/<project-table-resides-in>/datasets/<dataset-table_resides-in>/tables/<table | ||
| // name>" The project values in project_name and table_name do not have to be | ||
| // identical. | ||
| std::string const table_name = argv[2]; | ||
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| // Create a namespace alias to make the code easier to read. | ||
| namespace bigquery_storage = ::google::cloud::bigquery_storage_v1; | ||
| constexpr int kMaxReadStreams = 1; | ||
| // Create the ReadSession. | ||
| auto client = bigquery_storage::BigQueryReadClient( | ||
| bigquery_storage::MakeBigQueryReadConnection()); | ||
| ::google::cloud::bigquery::storage::v1::ReadSession read_session; | ||
| read_session.set_data_format( | ||
| google::cloud::bigquery::storage::v1::DataFormat::AVRO); | ||
| read_session.set_table(table_name); | ||
| auto session = | ||
| client.CreateReadSession(project_name, read_session, kMaxReadStreams); | ||
| if (!session) throw std::move(session).status(); | ||
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| // Read rows from the ReadSession. | ||
| constexpr int kRowOffset = 0; | ||
| auto read_rows = client.ReadRows(session->streams(0).name(), kRowOffset); | ||
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| std::int64_t num_rows = 0; | ||
| for (auto const& row : read_rows) { | ||
| if (row.ok()) { | ||
| num_rows += row->row_count(); | ||
| ProcessRowsInAvroFormat(session->avro_schema(), row->avro_rows()); | ||
| } | ||
| } | ||
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| std::cout << num_rows << " rows read from table: " << table_name << "\n"; | ||
| return 0; | ||
| } catch (google::cloud::Status const& status) { | ||
| std::cerr << "google::cloud::Status thrown: " << status << "\n"; | ||
| return 1; | ||
| } | ||
| //! [END bigquerystorage_quickstart] [all] |