wehub-resource-sync
122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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// A brpc based mysql transaction example
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#include <gflags/gflags.h>
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#include <butil/logging.h>
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#include <brpc/channel.h>
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#include "brpc/policy/mysql/mysql.h"
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#include "brpc/policy/mysql/mysql_authenticator.h"
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DEFINE_string(connection_type, "pooled", "Connection type. Available values: pooled, short");
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DEFINE_string(server, "127.0.0.1", "IP Address of server");
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DEFINE_int32(port, 3306, "Port of server");
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DEFINE_string(user, "brpcuser", "user name");
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DEFINE_string(password, "12345678", "password");
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DEFINE_string(schema, "brpc_test", "schema");
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DEFINE_string(params, "", "params");
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DEFINE_string(collation, "utf8mb4_general_ci", "collation");
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DEFINE_int32(timeout_ms, 5000, "RPC timeout in milliseconds");
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DEFINE_int32(connect_timeout_ms, 5000, "RPC timeout in milliseconds");
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DEFINE_int32(max_retry, 0, "Max retries(not including the first RPC)");
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DEFINE_bool(readonly, false, "readonly transaction");
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DEFINE_int32(isolation_level, 0, "transaction isolation level");
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namespace brpc {
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const char* logo();
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}
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// Send `command' to mysql-server via `channel'
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static bool access_mysql(brpc::Channel& channel, const std::vector<std::string>& commands) {
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brpc::MysqlTransactionOptions options;
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options.readonly = FLAGS_readonly;
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options.isolation_level = brpc::MysqlIsolationLevel(FLAGS_isolation_level);
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auto tx(brpc::NewMysqlTransaction(channel, options));
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if (tx == NULL) {
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LOG(ERROR) << "Fail to create transaction";
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return false;
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}
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for (auto it = commands.begin(); it != commands.end(); ++it) {
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brpc::MysqlRequest request(tx.get());
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if (!request.Query(*it)) {
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LOG(ERROR) << "Fail to add command";
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tx->rollback();
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return false;
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}
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brpc::MysqlResponse response;
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brpc::Controller cntl;
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channel.CallMethod(NULL, &cntl, &request, &response, NULL);
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if (cntl.Failed()) {
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LOG(ERROR) << "Fail to access mysql, " << cntl.ErrorText();
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tx->rollback();
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return false;
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}
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// check response
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std::cout << response << std::endl;
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for (size_t i = 0; i < response.reply_size(); ++i) {
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if (response.reply(i).is_error()) {
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tx->rollback();
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return false;
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}
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}
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}
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tx->commit();
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return true;
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}
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int main(int argc, char* argv[]) {
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// Parse gflags. We recommend you to use gflags as well.
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GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true);
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// A Channel represents a communication line to a Server. Notice that
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// Channel is thread-safe and can be shared by all threads in your program.
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brpc::Channel channel;
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// Initialize the channel, NULL means using default options.
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brpc::ChannelOptions options;
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options.protocol = brpc::PROTOCOL_MYSQL;
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options.connection_type = FLAGS_connection_type;
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options.timeout_ms = FLAGS_timeout_ms /*milliseconds*/;
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options.connect_timeout_ms = FLAGS_connect_timeout_ms;
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options.max_retry = FLAGS_max_retry;
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options.auth = new brpc::policy::MysqlAuthenticator(
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FLAGS_user, FLAGS_password, FLAGS_schema, FLAGS_params, FLAGS_collation);
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if (channel.Init(FLAGS_server.c_str(), FLAGS_port, &options) != 0) {
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LOG(ERROR) << "Fail to initialize channel";
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return -1;
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}
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if (argc <= 1) {
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LOG(ERROR) << "No sql statement args";
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} else {
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std::vector<std::string> commands;
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commands.reserve(argc * 16);
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for (int i = 1; i < argc; ++i) {
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commands.push_back(argv[i]);
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}
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if (!access_mysql(channel, commands)) {
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return -1;
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}
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}
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return 0;
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}
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/* vim: set expandtab ts=4 sw=4 sts=4 tw=100: */
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