third_party/tmb/src/voltdb_connection_pool.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 "tmb/internal/voltdb_connection_pool.h"

#include <cstdint>
#include <string>
#include <utility>
#include <vector>

#include "Client.h"        // NOLINT(build/include)

#include "tmb/internal/lock_free_stack.h"

namespace tmb {
namespace internal {

bool VoltDBConnectionPool::Initialize() {
  if (!initialized_) {
    if (servers_.empty()) {
      return false;
    }
    try {
      voltdb::Client client(CreateClient());
      clients_.Emplace(new voltdb::Client(client));
    } catch (...) {
      return false;
    }
    initialized_ = true;
  }
  return true;
}

voltdb::Client VoltDBConnectionPool::CreateClient() const {
  voltdb::Client client(voltdb::Client::create(config_));
  for (const ServerDescription &desc : servers_) {
    client.createConnection(desc.hostname, desc.port);
  }
  return std::move(client);
}

}  // namespace internal
}  // namespace tmb