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/*
 * Copyright 2019-2024 Google LLC
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */

package com.google.cloud.spanner.hibernate;

import org.hibernate.dialect.Dialect;
import org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo;
import org.hibernate.engine.jdbc.dialect.spi.DialectResolver;

/**
 * Dialect resolver that automatically detects the {@link SpannerDialect} based on the JDBC
 * connection URL.
 */
public class SpannerDialectResolver implements DialectResolver {

  @Override
  public Dialect resolveDialect(DialectResolutionInfo info) {
    String databaseName = info.getDatabaseName();
    if (databaseName.startsWith("Google Cloud Spanner")) {
      return new SpannerDialect(info);
    }
    return null;
  }
}