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package io.vertx.ext.mongo.impl.config;

import com.mongodb.ConnectionString;
import com.mongodb.connection.ConnectionPoolSettings;
import io.vertx.core.json.JsonObject;

import static java.util.concurrent.TimeUnit.MILLISECONDS;

/**
 * @author Nick Scavelli
 */
class ConnectionPoolSettingsParser {

  private final ConnectionPoolSettings settings;

  public ConnectionPoolSettingsParser(ConnectionString connectionString, JsonObject config) {
    ConnectionPoolSettings.Builder settings = ConnectionPoolSettings.builder();
    if (connectionString != null) {
      settings.applyConnectionString(connectionString);
    }

    Integer maxPoolSize = config.getInteger("maxPoolSize");
    if (maxPoolSize != null) {
      settings.maxSize(maxPoolSize);
    }
    Integer minPoolSize = config.getInteger("minPoolSize");
    if (minPoolSize != null) {
      settings.minSize(minPoolSize);
    }
    Long maxIdleTimeMS = config.getLong("maxIdleTimeMS");
    if (maxIdleTimeMS != null) {
      settings.maxConnectionIdleTime(maxIdleTimeMS, MILLISECONDS);
    }
    Long maxLifeTimeMS = config.getLong("maxLifeTimeMS");
    if (maxLifeTimeMS != null) {
      settings.maxConnectionLifeTime(maxLifeTimeMS, MILLISECONDS);
    }
    Long waitQueueTimeoutMS = config.getLong("waitQueueTimeoutMS");
    if (waitQueueTimeoutMS != null) {
      settings.maxWaitTime(waitQueueTimeoutMS, MILLISECONDS);
    }
    Long maintenanceInitialDelayMS = config.getLong("maintenanceInitialDelayMS");
    if (maintenanceInitialDelayMS != null) {
      settings.maintenanceInitialDelay(maintenanceInitialDelayMS, MILLISECONDS);
    }
    Long maintenanceFrequencyMS = config.getLong("maintenanceFrequencyMS");
    if (maintenanceFrequencyMS != null) {
      settings.maintenanceFrequency(maintenanceFrequencyMS, MILLISECONDS);
    }

    this.settings = settings.build();
  }

  public ConnectionPoolSettings settings() {
    return settings;
  }
}