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package org.glassfish.persistence.common;

import com.sun.appserv.connectors.internal.api.ConnectorRuntime;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.OpsParams;
import org.glassfish.resourcebase.resources.api.ResourceInfo;

import javax.naming.NamingException;
import javax.sql.DataSource;


/**
 * Contains helper methods for persistence module
 * @author Mitesh Meswani
 */
public class PersistenceHelper {

    public static DataSource lookupNonTxResource(ConnectorRuntime connectorRuntime, DeploymentContext ctx, String dataSourceName) throws NamingException {
        return DataSource.class.cast(connectorRuntime.lookupNonTxResource(getResourceInfo(ctx, dataSourceName), true));
    }

    public static DataSource lookupPMResource(ConnectorRuntime connectorRuntime, DeploymentContext ctx, String dataSourceName) throws NamingException {
        return DataSource.class.cast(connectorRuntime.lookupPMResource(getResourceInfo(ctx, dataSourceName), true));
    }

    private static ResourceInfo getResourceInfo(DeploymentContext ctx, String dataSourceName) {
        ResourceInfo resourceInfo;
        if(dataSourceName.startsWith("java:app") /* || jndiName.startsWith("java:module") // Use of module scoped resources from JPA still needs to be speced out*/){
            String applicationName  = ctx.getCommandParameters(OpsParams.class).name();
            resourceInfo = new ResourceInfo(dataSourceName, applicationName);
        }else{
            resourceInfo = new ResourceInfo(dataSourceName);
        }
        return resourceInfo;
    }
}