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package com.sun.enterprise.resource.pool;


import com.sun.appserv.connectors.internal.api.ConnectorConstants.PoolType;
import com.sun.appserv.connectors.internal.api.PoolingException;
import com.sun.enterprise.connectors.ConnectorRuntime;
import com.sun.logging.LogDomains;
import org.glassfish.resourcebase.resources.api.PoolInfo;

import java.util.Hashtable;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Factory to create appropriate connection pool.
 *
 * @author Aditya Gore
 */
public class ResourcePoolFactoryImpl {

    //property to take care of switching off connection pooling in ACC
    //since 9.1
    private static final String SWITCH_OFF_ACC_CONNECTION_POOLING =
 	"com.sun.enterprise.connectors.SwitchoffACCConnectionPooling";
    private static String switchOffACCConnectionPoolingProperty =
            System.getProperty(SWITCH_OFF_ACC_CONNECTION_POOLING);

    private static Logger _logger = LogDomains.getLogger(ResourcePoolFactoryImpl.class,LogDomains.RSR_LOGGER);

    public static ResourcePool newInstance(PoolInfo poolInfo, PoolType pt, Hashtable env)
            throws PoolingException {

        if(ConnectorRuntime.getRuntime().isACCRuntime()){
            if("TRUE".equalsIgnoreCase(switchOffACCConnectionPoolingProperty))
                return new UnpooledResource( poolInfo, env );
        }

        ResourcePool pool = null;
        if( pt == PoolType.POOLING_DISABLED ) {
            return new UnpooledResource( poolInfo, env );
        }
        if ( pt == PoolType.ASSOCIATE_WITH_THREAD_POOL ) {
            pool = new AssocWithThreadResourcePool( poolInfo, env );
        } else {
            pool = new ConnectionPool( poolInfo, env );
        }

        if (_logger.isLoggable(Level.FINE)) {
            _logger.fine("Created a pool of type : " + pt);
        }
        return pool;
    }
}