source: trunk/grails-app/services/dbnp/modules/ModuleNotificationService.groovy @ 1446

/**
 * SynchronizationService Service
 * 
 * Description of my service
 *
 * @author  your email (+name?)
 * @since       2010mmdd
 * @package     ???
 *
 * Revision information:
 * $Rev: 1442 $
 * $Author: robert@isdat.nl $
 * $Date: 2011-01-26 17:02:05 +0100 (Wed, 26 Jan 2011) $
 */
package dbnp.modules

import nl.grails.plugins.gdt.*
import dbnp.studycapturing.*

class ModuleNotificationService implements Serializable {
    boolean transactional = false
        
    /**
     * Sends a notification to assay modules that some part of a study has changed.
     * 
     * Only modules that have the notify flag set to true will be notified. They will be notified on the URL
     * 
     * [moduleUrl]/rest/notifyStudyChange?studyToken=abc
     * 
     * Errors that occur when calling this URL are ignored. The module itself is responsible of
     * maintaining a synchronized state.
     * 
     * @param study
     * @return
     */
        def invalidateStudy( Study study ) {
                if( !study )
                        return
                        
                log.info( "Invalidate " + study.code )

                def modules = AssayModule.findByNotify(true);
                
                def urls = []
                modules.each { module ->
                        urls << module.url + '/rest/notifyStudyChange?studyToken=' + study.giveUUID()
                }
                
                Thread.start { 
                        urls.each { url ->
                                try {
                                        def connection = url.toURL().openConnection()
                                        if( connection.responseCode == 200 ) {
                                                log.info( "GSCF NOTIFY-CALL SUCCEEDED: ${url}" )
                                        } else {
                                                log.info( "GSCF NOTIFY-CALL FAILED: ${url}: " + connection.responseCode )
                                        }
                                } catch( Exception ignore) {
                                        log.info( "GSCF NOTIFY-CALL ERROR: ${url} - " + ignore.getMessage() )
                                }
                        }
                 };
    }
}