Glassfish example source code file (ManagedConnectionMetaData.java)

This example Glassfish source code file (ManagedConnectionMetaData.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

jdbc, log, logger, logging, managedconnection, managedconnectionmetadata, managedconnectionmetadata, resourceexception, resourceexception, sql, sqlexception, sqlexception, string, string

The Glassfish ManagedConnectionMetaData.java source code

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 *
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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package com.sun.gjc.spi;

import com.sun.logging.LogDomains;

import javax.resource.ResourceException;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * <code>ManagedConnectionMetaData implementation for Generic JDBC Connector.
 *
 * @author Evani Sai Surya Kiran
 * @version 1.0, 02/08/03
 */
public class ManagedConnectionMetaData implements javax.resource.spi.ManagedConnectionMetaData {

    private java.sql.DatabaseMetaData dmd = null;
    private ManagedConnection mc;

    private static Logger _logger;

    static {
        _logger = LogDomains.getLogger(ManagedConnectionMetaData.class, LogDomains.RSR_LOGGER);
    }

    private boolean debug = false;

    /**
     * Constructor for <code>ManagedConnectionMetaData
     *
     * @param mc <code>ManagedConnection
     * @throws <code>ResourceException if getting the DatabaseMetaData object fails
     */
    public ManagedConnectionMetaData(ManagedConnection mc) throws ResourceException {
        try {
            this.mc = mc;
            dmd = mc.getActualConnection().getMetaData();
        } catch (SQLException sqle) {
            _logger.log(Level.SEVERE, "jdbc.exc_md", sqle);
            throw new ResourceException(sqle.getMessage());
        }
    }

    /**
     * Returns product name of the underlying EIS instance connected
     * through the ManagedConnection.
     *
     * @return Product name of the EIS instance
     * @throws <code>ResourceException
     */
    public String getEISProductName() throws ResourceException {
        try {
            return dmd.getDatabaseProductName();
        } catch (SQLException sqle) {
            _logger.log(Level.SEVERE, "jdbc.exc_eis_prodname", sqle);
            throw new ResourceException(sqle.getMessage());
        }
    }

    /**
     * Returns product version of the underlying EIS instance connected
     * through the ManagedConnection.
     *
     * @return Product version of the EIS instance
     * @throws <code>ResourceException
     */
    public String getEISProductVersion() throws ResourceException {
        try {
            return dmd.getDatabaseProductVersion();
        } catch (SQLException sqle) {
            _logger.log(Level.SEVERE, "jdbc.exc_eis_prodvers", sqle);
            throw new ResourceException(sqle.getMessage(), sqle.getMessage());
        }
    }

    /**
     * Returns maximum limit on number of active concurrent connections
     * that an EIS instance can support across client processes.
     *
     * @return Maximum limit for number of active concurrent connections
     * @throws <code>ResourceException
     */
    public int getMaxConnections() throws ResourceException {
        try {
            return dmd.getMaxConnections();
        } catch (SQLException sqle) {
            _logger.log(Level.SEVERE, "jdbc.exc_eis_maxconn");
            throw new ResourceException(sqle.getMessage());
        }
    }

    /**
     * Returns name of the user associated with the ManagedConnection instance. The name
     * corresponds to the resource principal under whose whose security context, a connection
     * to the EIS instance has been established.
     *
     * @return name of the user
     * @throws <code>ResourceException
     */
    public String getUserName() throws ResourceException {
        javax.resource.spi.security.PasswordCredential pc = mc.getPasswordCredential();
        if (pc != null) {
            return pc.getUserName();
        }

        return mc.getManagedConnectionFactory().getUser();
    }
}