/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.browse;
import org.dspace.core.ConfigurationManager;
import org.dspace.core.Context;
/**
* Factory class to generate DAOs based on the configuration
*
* @author Richard Jones
*
*/
public class BrowseDAOFactory
{
/**
* Get an instance of the relevant Read Only DAO class, which will
* conform to the BrowseDAO interface
*
* @param context the DSpace context
* @return the relevant DAO
* @throws BrowseException
*/
public static BrowseDAO getInstance(Context context)
throws BrowseException
{
String db = ConfigurationManager.getProperty("db.name");
if ("postgres".equals(db))
{
return new BrowseDAOPostgres(context);
}
else if ("oracle".equals(db))
{
return new BrowseDAOOracle(context);
}
else
{
throw new BrowseException("The configuration for db.name is either invalid, or contains an unrecognised database");
}
}
/**
* Get an instance of the relevant Write Only DAO class, which will
* conform to the BrowseCreateDAO interface
*
* @param context the DSpace context
* @return the relevant DAO
* @throws BrowseException
*/
public static BrowseCreateDAO getCreateInstance(Context context)
throws BrowseException
{
String db = ConfigurationManager.getProperty("db.name");
if ("postgres".equals(db))
{
return new BrowseCreateDAOPostgres(context);
}
else if ("oracle".equals(db))
{
return new BrowseCreateDAOOracle(context);
}
else
{
throw new BrowseException("The configuration for db.name is either invalid, or contains an unrecognised database");
}
}
/**
* Get an instance of the relevant Read Only DAO class, which will
* conform to the BrowseItemDAO interface
*
* @param context the DSpace context
* @return the relevant DAO
* @throws BrowseException
*/
public static BrowseItemDAO getItemInstance(Context context)
throws BrowseException
{
String db = ConfigurationManager.getProperty("db.name");
if ("postgres".equals(db))
{
return new BrowseItemDAOPostgres(context);
}
else if ("oracle".equals(db))
{
return new BrowseItemDAOOracle(context);
}
else
{
throw new BrowseException("The configuration for db.name is either invalid, or contains an unrecognised database");
}
}
/**
* Get an instance of the relevant DAO Utilities class, which will
* conform to the BrowseDAOUtils interface
*
* @param context the DSpace context
* @return the relevant DAO
* @throws BrowseException
*/
public static BrowseDAOUtils getUtils(Context context)
throws BrowseException
{
String db = ConfigurationManager.getProperty("db.name");
if ("postgres".equals(db))
{
return new BrowseDAOUtilsPostgres();
}
else if ("oracle".equals(db))
{
return new BrowseDAOUtilsOracle();
}
else
{
throw new BrowseException("The configuration for db.name is either invalid, or contains an unrecognised database");
}
}
}