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/**
 * Copyright (C) 2015-2016 Philip Helger (www.helger.com)
 * philip[at]helger[dot]com
 *
 * Version: MPL 1.1/EUPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Copyright The PEPPOL project (http://www.peppol.eu)
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the EUPL, Version 1.1 or - as soon they will be approved
 * by the European Commission - subsequent versions of the EUPL
 * (the "Licence"); You may not use this work except in compliance
 * with the Licence.
 * You may obtain a copy of the Licence at:
 * http://joinup.ec.europa.eu/software/page/eupl/licence-eupl
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * If you wish to allow use of your version of this file only
 * under the terms of the EUPL License and not to allow others to use
 * your version of this file under the MPL, indicate your decision by
 * deleting the provisions above and replace them with the notice and
 * other provisions required by the EUPL License. If you do not delete
 * the provisions above, a recipient may use your version of this file
 * under either the MPL or the EUPL License.
 */
package com.helger.peppol.smpserver.data.sql;

import java.util.HashMap;
import java.util.Map;

import javax.annotation.Nonnull;

import org.eclipse.persistence.config.PersistenceUnitProperties;

import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.annotation.UsedViaReflection;
import com.helger.db.jpa.AbstractGlobalEntityManagerFactory;
import com.helger.peppol.smpserver.SMPServerConfiguration;
import com.helger.peppol.utils.ConfigFile;

/**
 * Specific SMP JPA entity manager factory
 *
 * @author PEPPOL.AT, BRZ, Philip Helger
 */
public final class SMPEntityManagerFactory extends AbstractGlobalEntityManagerFactory
{
  @Nonnull
  @ReturnsMutableCopy
  private static Map  _createPropertiesMap ()
  {
    // Standard configuration file
    final ConfigFile aConfigFile = SMPServerConfiguration.getConfigFile ();

    final Map  ret = new HashMap  ();
    // Read all properties from the standard configuration file
    // Connection pooling
    ret.put (PersistenceUnitProperties.CONNECTION_POOL_MAX, aConfigFile.getString (SMPJPAConfiguration.CONFIG_JDBC_READ_CONNECTIONS_MAX));

    // EclipseLink should create the database schema automatically
    // Values: Values: none/create-tables/drop-and-create-tables
    ret.put (PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.DROP_AND_CREATE);
    ret.put (PersistenceUnitProperties.DDL_GENERATION_MODE,
             aConfigFile.getString (SMPJPAConfiguration.CONFIG_DDL_GENERATION_MODE, SMPJPAConfiguration.getDefaultDDLGenerationMode ()));
    ret.put (PersistenceUnitProperties.CREATE_JDBC_DDL_FILE, "db-create-smp.sql");
    ret.put (PersistenceUnitProperties.DROP_JDBC_DDL_FILE, "db-drop-smp.sql");

    // Use an isolated cache
    // (http://code.google.com/p/peppol-silicone/issues/detail?id=6)
    ret.put (PersistenceUnitProperties.CACHE_SHARED_DEFAULT, "false");

    // Enable this line for SQL debug logging
    if (false)
      ret.put (PersistenceUnitProperties.LOGGING_LEVEL, "finer");

    return ret;
  }

  @Deprecated
  @UsedViaReflection
  public SMPEntityManagerFactory ()
  {
    super (SMPServerConfiguration.getConfigFile ().getString (SMPJPAConfiguration.CONFIG_JDBC_DRIVER),
           SMPServerConfiguration.getConfigFile ().getString (SMPJPAConfiguration.CONFIG_JDBC_URL),
           SMPServerConfiguration.getConfigFile ().getString (SMPJPAConfiguration.CONFIG_JDBC_USER),
           SMPServerConfiguration.getConfigFile ().getString (SMPJPAConfiguration.CONFIG_JDBC_PASSWORD),
           SMPServerConfiguration.getConfigFile ().getString (SMPJPAConfiguration.CONFIG_TARGET_DATABASE),
           "peppol-smp",
           _createPropertiesMap ());

  }

  @Nonnull
  public static SMPEntityManagerFactory getInstance ()
  {
    return getGlobalSingleton (SMPEntityManagerFactory.class);
  }
}