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/*
 * Druid - a distributed column store.
 * Copyright (C) 2012, 2013  Metamarkets Group Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package io.druid.db;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Supplier;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.metamx.common.lifecycle.Lifecycle;

/**
 */
public class DatabaseSegmentManagerProvider implements Provider
{
  private final ObjectMapper jsonMapper;
  private final Supplier config;
  private final Supplier dbTables;
  private final DbConnector dbConnector;
  private final Lifecycle lifecycle;

  @Inject
  public DatabaseSegmentManagerProvider(
      ObjectMapper jsonMapper,
      Supplier config,
      Supplier dbTables,
      DbConnector dbConnector,
      Lifecycle lifecycle
  )
  {
    this.jsonMapper = jsonMapper;
    this.config = config;
    this.dbTables = dbTables;
    this.dbConnector = dbConnector;
    this.lifecycle = lifecycle;
  }

  @Override
  public DatabaseSegmentManager get()
  {
    lifecycle.addHandler(
        new Lifecycle.Handler()
        {
          @Override
          public void start() throws Exception
          {
            dbConnector.createSegmentTable();
          }

          @Override
          public void stop()
          {

          }
        }
    );

    return new DatabaseSegmentManager(
        jsonMapper,
        config,
        dbTables,
        dbConnector.getDBI()
    );
  }
}