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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * 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.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * elects to include this software in this distribution under the [CDDL or GPL
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 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
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/*
 * @(#) JdbcResourceDeployer.java
 *
 * Copyright 2000-2001 by iPlanet/Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information
 * of iPlanet/Sun Microsystems, Inc. ("Confidential Information").
 * You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license
 * agreement you entered into with iPlanet/Sun Microsystems.
 */
package com.sun.enterprise.resource.deployer;

import com.sun.appserv.connectors.internal.api.ConnectorConstants;
import com.sun.enterprise.connectors.ConnectorRuntime;
import com.sun.appserv.connectors.internal.api.ConnectorsUtil;
import com.sun.appserv.connectors.internal.spi.ResourceDeployer;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.config.serverbeans.JdbcResource;
import com.sun.logging.LogDomains;

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

import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.Singleton;


/**
 * Handles Jdbc resource events in the server instance. When user adds a
 * jdbc resource, the admin instance emits resource event. The jdbc
 * resource events are propagated to this object.
 * 
 * The methods can potentially be called concurrently, therefore implementation
 * need to be synchronized.
 *
 * @author Nazrul Islam
 * @since JDK1.4
 */
@Service
@Scoped(Singleton.class)
public class JdbcResourceDeployer implements ResourceDeployer {

    @Inject
    private ConnectorRuntime runtime;

    private static final StringManager localStrings =
            StringManager.getManager(JdbcResourceDeployer.class);
    // logger for this deployer
    private static Logger _logger = LogDomains.getLogger(JdbcResourceDeployer.class, LogDomains.CORE_LOGGER);

    /**
     * {@inheritDoc}
     */
    public synchronized void deployResource(Object resource) throws Exception {

        com.sun.enterprise.config.serverbeans.JdbcResource jdbcRes =
                (com.sun.enterprise.config.serverbeans.JdbcResource) resource;

        if (ConnectorsUtil.parseBoolean(jdbcRes.getEnabled()))
        {
            String jndiName = jdbcRes.getJndiName();
            String poolName = jdbcRes.getPoolName();
            
            runtime.createConnectorResource(jndiName, poolName, null);
            //In-case the resource is explicitly created with a suffix (__nontx or __PM), no need to create one
            if(ConnectorsUtil.getValidSuffix(jndiName) == null){
                runtime.createConnectorResource( ConnectorsUtil.getPMJndiName( jndiName), poolName, null);
            }
            _logger.finest("deployed resource " + jndiName);
        } else {
            _logger.log(Level.INFO, "core.resource_disabled",
                    new Object[]{jdbcRes.getJndiName(), ConnectorConstants.RES_TYPE_JDBC});
        }
    }

    /**
     * {@inheritDoc}
     */
    public synchronized void undeployResource(Object resource)
            throws Exception {

        com.sun.enterprise.config.serverbeans.JdbcResource jdbcRes =
                (com.sun.enterprise.config.serverbeans.JdbcResource) resource;

        String jndiName = jdbcRes.getJndiName();

        runtime.deleteConnectorResource(jndiName);
        //In-case the resource is explicitly created with a suffix (__nontx or __PM), no need to delete one
        if(ConnectorsUtil.getValidSuffix(jndiName) == null){
            runtime.deleteConnectorResource( ConnectorsUtil.getPMJndiName( jndiName) );
        }

        //Since 8.1 PE/SE/EE - if no more resource-ref to the pool
        //of this resource in this server instance, remove pool from connector
        //runtime
        // TODO V3, we can't destroy the pool as we dont get default call from naming any more.
        // probably, delete the pool and recreate the proxy ?
        // checkAndDeletePool(domainResource);

    }

    /**
     * {@inheritDoc}
     */
    public synchronized void redeployResource(Object resource)
            throws Exception {

        undeployResource(resource);
        deployResource(resource);
    }

    /**
     * {@inheritDoc}
     */
    public boolean handles(Object resource){
        return resource instanceof JdbcResource;
    }


    /**
     * {@inheritDoc}
     */
    public synchronized void enableResource(Object resource) throws Exception {
        deployResource(resource);
    }

    /**
     * {@inheritDoc}
     */
    public synchronized void disableResource(Object resource) throws Exception {
        undeployResource(resource);
    }

}