servicesregistry.java

java 写的一个新闻发布系统

    }

   /**
    * method getJahiaApplicationsDispatchingService
    *
    * @author NK 21.12.2000
    */
    public JahiaApplicationsDispatchingService getJahiaApplicationsDispatchingService()
    {
        return (JahiaApplicationsDispatchingService)theRegistry.
                get(JAHIA_APPLICATIONS_DISPATCHING_SERVICE) ;
    }


   /**
    * method getJahiaApplicationsPersistanceService
    *
    * @author NK 21.12.2000
    */
    public JahiaApplicationsPersistanceService getJahiaApplicationsPersistanceService()
    {
        return (JahiaApplicationsPersistanceService)theRegistry.
                get(JAHIA_APPLICATIONS_PERSISTANCE_SERVICE) ;
    }

   /**
    * method getJahiaIncrementorsDBService
    *
    * @author NK 21.12.2000
    */
    public JahiaIncrementorsDBService getJahiaIncrementorsDBService()
    {
        return (JahiaIncrementorsDBService)theRegistry.
                get(JAHIA_INCREMENTORS_DB_SERVICE) ;
    }


    /**
     * Return a reference on the DB User Manager service
     */
    public JahiaUserManagerService getJahiaUserManagerService ()
    {
        return (JahiaUserManagerService)theRegistry.
                get (JAHIA_USER_MANAGER_SERVICE);
    }


    /**
     * Return a reference on the DB User Manager service
     */
    public JahiaGroupManagerService getJahiaGroupManagerService ()
    {
        return (JahiaGroupManagerService)theRegistry.
                get (JAHIA_GROUP_MANAGER_SERVICE);
    }


    /**
     *
     */
    public JahiaACLManagerService getJahiaACLManagerService ()
    {
        return (JahiaACLManagerService)theRegistry.
                get (JAHIA_ACL_MANAGER_SERVICE);
    }


    /**
     *
     */
    public JahiaContainersService getJahiaContainersService ()
    {
        return (JahiaContainersService)theRegistry.
                get (JAHIA_CONTAINERS_SERVICE);
    }


    /**
     * DJ 03.01.2001
     */
    public JahiaSearchService getJahiaSearchService ()
    {
        return (JahiaSearchService)theRegistry.get (JAHIA_SEARCH_SERVICE);
    }


    /**
     * NK 04.01.2001
     */
    public JahiaFilemanagerService getJahiaFilemanagerService ()
    {
        return (JahiaFilemanagerService)theRegistry.
                get (jahia_filemgr_SERVICE);
    }


    /**
     * EV 11.01.2001
     */
    public JahiaFetcherService getJahiaFetcherService ()
    {
        return (JahiaFetcherService)theRegistry.get (JAHIA_FETCHER_SERVICE);
    }


    /**
     * NK 20.01.2001
     */
    public JahiaTemplatesDeployerService getJahiaTemplatesDeployerService ()
    {
        return (JahiaTemplatesDeployerService)theRegistry.
                get (JAHIA_TEMPLATES_DEPLOYER_SERVICE);
    }


    /**
     * NK 24.01.2001
     */
    public JahiaWebAppsDeployerService getJahiaWebAppsDeployerService ()
    {
        return (JahiaWebAppsDeployerService)theRegistry.
                get (JAHIA_WEBAPPS_DEPLOYER_SERVICE);
    }


    /**
     * NK 12.01.2001
     */
    public JahiaFileWatcherService getJahiaFileWatcherService ()
    {
        return (JahiaFileWatcherService)theRegistry.
                get (JAHIA_FILE_WATCHER_SERVICE);
    }


    /**
     * EV 12.01.2001
     */
    public JahiaEventGeneratorService getJahiaEventService ()
    {
        return (JahiaEventGeneratorService)theRegistry.
                get (JAHIA_EVENT_SERVICE);
    }


    /**
     * NK 13.02.2001
     */
    public JahiaApplicationsManagerService getJahiaApplicationsManagerService ()
    {
        return (JahiaApplicationsManagerService)theRegistry.
                get (JAHIA_APPLICATIONS_MANAGER_SERVICE);
    }

    /**
     * NK 18.06.2002
     */
    public JahiaApplicationContextService getJahiaApplicationContextService ()
    {
        return (JahiaApplicationContextService)theRegistry.
                get (JAHIA_APPLICATION_CONTEXT_SERVICE);
    }

    /**
     * MJ 20.02.2001
     */
    public JahiaAuditLogManagerService getJahiaAuditLogManagerService ()
    {
        return (JahiaAuditLogManagerService)theRegistry.
                get (JAHIA_AUDIT_LOG_MANAGER_SERVICE);
    }


    /**
     * NK 12.03.2001
     */
    public JahiaSitesService getJahiaSitesService ()
    {
        return (JahiaSitesService)theRegistry.get (JAHIA_SITES_SERVICE);
    }


    /**
     * Return a reference on the DB Site User Manager service
     */
    public JahiaSiteUserManagerService getJahiaSiteUserManagerService ()
    {
        return (JahiaSiteUserManagerService)theRegistry.
                get (JAHIA_SITE_USER_MANAGER_SERVICE);
    }


    /**
     * Return a reference on the DB Site Group Manager service
     */
    public JahiaSiteGroupManagerService getJahiaSiteGroupManagerService ()
    {
        return (JahiaSiteGroupManagerService)theRegistry.
                get (JAHIA_SITE_GROUP_MANAGER_SERVICE);
    }

    /**
     * Return a reference on the apps share service
     */
    public AppsShareService getAppsShareService ()
    {
        return (AppsShareService)theRegistry.
                get (JAHIA_APPS_SHARE_SERVICE);
    }

    /**
     * Return a reference to the HTML content cache server service
     */
    public CacheServerService getCacheServerService() {
        return (CacheServerService) theRegistry.get(JAHIA_CACHE_SERVER_SERVICE);
    }

    /**
     * Return a reference to the homepages service
     */
    public JahiaHomepagesService getJahiaHomepagesService() {
        return (JahiaHomepagesService) theRegistry.get(JAHIA_HOMEPAGES_SERVICE);
    }

   //-------------------------------------------------------------------------
   /**
    * constructor
    * EV    19.12.2000
    *
    */
    private ServicesRegistry()
    {
        JahiaConsole.println( "Registry",
                              "***** Starting Services Registry *****" );


    } // end constructor


   //--------------------------------------------------------------------------
   /**
    * method loadService
    *
    * @author NK 21.12.2000
    */
    private void loadService (String serviceName, String className)
        throws JahiaException
    {
        try {
            //JahiaConsole.println( "Registry", "ServicesRegistry loads services : serviceName=" + serviceName + ", classe name=" + className  );

            // Try to get a service by the getInstance method first
            JahiaService service = getServiceInstance(className);

            if ( service != null ) {
                theRegistry.put(serviceName,service);
            } else {
                theRegistry.put(serviceName,(JahiaService)Class.forName(className).newInstance());
            }

            // Try to initialize the service
            JahiaService instanceObj = (JahiaService)theRegistry.get(serviceName);
            instanceObj.setServiceName(serviceName);
            // JahiaConsole.println( "Registry", "Try to init instance of " + serviceName );
            instanceObj.init(this.jSettings);

        } catch ( ClassNotFoundException cnfe ) {

            String errorMsg = "ClassNotFoundException, Error in initializing Service : " + serviceName + ", class=" + className + "\n" + cnfe.toString();
            JahiaConsole.println( "Registry", errorMsg + " -> BAILING OUT" );
            throw new JahiaException( "ClassNotFoundException",
                                     errorMsg, JahiaException.SERVICE_ERROR, JahiaException.CRITICAL, cnfe );

        } catch ( InstantiationException cie ) {

            String errorMsg = "InstantiationException, Error in initializing Service : " + serviceName + ", class=" + className + "\n" + cie.toString();
            JahiaConsole.println( "Registry", errorMsg + " -> BAILING OUT" );
            throw new JahiaException( "InstanciationException",
                                     errorMsg, JahiaException.SERVICE_ERROR, JahiaException.CRITICAL, cie );

        } catch ( IllegalAccessException iae){

            String errorMsg = "IllegalAccessException,Error in initializing Service : " + serviceName + ", class=" + className + "\n" + iae.toString();
            JahiaConsole.println( "Registry", errorMsg + " -> BAILING OUT" );
            throw new JahiaException( "IllegalAccessException",
                                     errorMsg, JahiaException.SERVICE_ERROR, JahiaException.CRITICAL, iae );

        } catch ( JahiaInitializationException jie){

            String errorMsg = "JahiaInitializationException,Error in initializing Service : " + serviceName + ", class=" + className + "\n" + jie.toString();
            JahiaConsole.println( "Registry", errorMsg + " -> BAILING OUT" );
            throw new JahiaException( "JahiaInitializationException",
                                     jie.getJahiaErrorMsg(), JahiaException.SERVICE_ERROR, JahiaException.CRITICAL, jie );
        }
    }


    //-------------------------------------------------------------------------
    /**
     * Try to instanciate a service by the calling the method getInstance()
     * For Singleton Service
     *
     * @author NK 28.12.2000
     * @return null if fail
     */
    private JahiaService getServiceInstance (String className)
        throws ClassNotFoundException
    {
        JahiaService service = null;
        JahiaConsole.println("ServicesRegistry.getServiceInstance", "Trying to call getInstance() on class : " + className);

        try {

            Class self = Class.forName(className);
            Object parameters = null;
            java.lang.reflect.Method aMethod =
                    self.getMethod ("getInstance", null);

            if (aMethod != null)
            {
                JahiaConsole.println("ServicesRegistry.getServiceInstance", "Found getInstance() method, now invoking...");
                try {
                    service = (JahiaService)aMethod.invoke(self, null);
                    JahiaConsole.println("ServicesRegistry.getServiceInstance", "getInstance() invoked successfully, service=" + service);
                } catch ( java.lang.reflect.InvocationTargetException ite ) {
                    JahiaConsole.printe("ServicesRegistry.getServiceInstance",
                                         ite.getTargetException() );
                }
            } else {
                JahiaConsole.println("ServicesRegistry.getServiceInstance", "getInstance() method not found on class [" + className + "]");
            }

        } catch ( NoSuchMethodException nme ) {
            JahiaConsole.println("ServicesRegistry.getServiceInstance"," Class " + className +
                    " method getInstance NoSuchMethodException ");
            JahiaConsole.printe("ServicesRegistry.getServiceInstance", nme);
        } catch ( IllegalAccessException iae ) {
            JahiaConsole.println("ServicesRegistry.getServiceInstance"," Class " + className +
                    " method getInstance IllegalAccessException ");
            JahiaConsole.printe("ServicesRegistry.getServiceInstance", iae);
        } catch ( Throwable t ) {
            JahiaConsole.printe("ServicesRegistry.getServiceInstance", t);
        }
        return service;
    }
} // end ServicesRegistry