/*
 * Copyright (C) 2005-2007 Alfresco Software Limited.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 * As a special exception to the terms and conditions of version 2.0 of 
 * the GPL, you may redistribute this Program in connection with Free/Libre 
 * and Open Source Software ("FLOSS") applications as described in Alfresco's 
 * FLOSS exception.  You should have recieved a copy of the text describing 
 * the FLOSS exception, and it is also available here: 
 * http://www.alfresco.com/legal/licensing"
 */
package org.alfresco.repo.jscript;

import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.repo.security.authentication.AuthenticationComponent;
import org.alfresco.service.cmr.repository.ScriptLocation;
import org.alfresco.service.cmr.repository.ScriptService;
import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

/**
 * Quartz job that executes a scheduled JS script.
 * 
 * @author Roy Wetherall
 */
public class ExecuteScriptJob implements Job
{
    private static final String PARAM_SCRIPT_LOCATION = "scriptLocation";
    private static final String PARAM_SCRIPT_SERVICE = "scriptService"; 
    private static final String PARAM_AUTHENTICATION_COMPONENT = "authenticationComponent";
    
    /**
     * Executes the scheduled script
     * 
     * @see org.quartz.Job#execute(org.quartz.JobExecutionContext)
     */
    public void execute(JobExecutionContext context) throws JobExecutionException
    {
        JobDataMap jobData = context.getJobDetail().getJobDataMap();
        
        // Get the script service from the job map
        Object scriptServiceObj = jobData.get(PARAM_SCRIPT_SERVICE);
        if (scriptServiceObj == null || !(scriptServiceObj instanceof ScriptService))
        {
            throw new AlfrescoRuntimeException(
                    "ExecuteScriptJob data must contain valid script service");
        }
        
        // Get the script location from the job map
        Object scriptLocationObj = jobData.get(PARAM_SCRIPT_LOCATION);
        if (scriptLocationObj == null || !(scriptLocationObj instanceof ScriptLocation))
        {
            throw new AlfrescoRuntimeException(
                    "ExecuteScriptJob data must contain valid script location");
        }
        
        // Get the authentication component from the job map
        Object authenticationComponentObj = jobData.get(PARAM_AUTHENTICATION_COMPONENT);
        if (authenticationComponentObj == null || !(authenticationComponentObj instanceof AuthenticationComponent))
        {
            throw new AlfrescoRuntimeException(
                    "ExecuteScriptJob data must contain valid authentication component");
        }
        
        
        // Execute the script as the system user
        ((AuthenticationComponent)authenticationComponentObj).setSystemUserAsCurrentUser();
        try
        {
            // Execute the script
            ((ScriptService)scriptServiceObj).executeScript((ScriptLocation)scriptLocationObj, null);
        }
        finally
        {
            ((AuthenticationComponent)authenticationComponentObj).clearCurrentSecurityContext();
        }
    }
}