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   *  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
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   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.unit.di.runtime;
  
  import java.sql.Driver;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import javax.sql.DataSource;
  
  import org.apache.cayenne.configuration.DataSourceDescriptor;
  import org.apache.cayenne.datasource.DataSourceBuilder;
  import org.apache.cayenne.di.AdhocObjectFactory;
  import org.apache.cayenne.di.Inject;
  
  public class RuntimeCaseDataSourceFactory {
  
  	private DataSource sharedDataSource;
  	private DataSourceDescriptor dataSourceInfo;
  	private Map<String, DataSource> dataSources;
  	private Set<String> mapsWithDedicatedDataSource;
  	private AdhocObjectFactory objectFactory;
  
  	public RuntimeCaseDataSourceFactory(@Inject DataSourceDescriptor dataSourceInfo, @Inject AdhocObjectFactory objectFactory) {
  
  		this.objectFactory = objectFactory;
  		this.dataSourceInfo = dataSourceInfo;
  		this.dataSources = new HashMap<>();
  		this.mapsWithDedicatedDataSource = new HashSet<>(Arrays.asList("map-db1", "map-db2"));
  
  		this.sharedDataSource = createDataSource();
  	}
  
  	public DataSource getSharedDataSource() {
  		return sharedDataSource;
  	}
  
  	public DataSource getDataSource(String dataMapName) {
  		DataSource ds = dataSources.get(dataMapName);
  		if (ds == null) {
  
  			ds = mapsWithDedicatedDataSource.contains(dataMapName) ? createDataSource() : sharedDataSource;
  
  			dataSources.put(dataMapName, ds);
  		}
  
  		return ds;
  	}
  
  	private DataSource createDataSource() {
  		Driver driver = objectFactory.newInstance(Driver.class, dataSourceInfo.getJdbcDriver());
  
  		return DataSourceBuilder.url(dataSourceInfo.getDataSourceUrl()).driver(driver)
  				.userName(dataSourceInfo.getUserName()).password(dataSourceInfo.getPassword())
  				.pool(dataSourceInfo.getMinConnections(), dataSourceInfo.getMaxConnections()).build();
  	}
  
  }
  