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/*
* @(#) ApplicationLifecycle.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.server;
import java.util.Collection;
import java.util.Iterator;
import com.sun.ejb.Container;
import com.sun.ejb.ContainerFactory;
import com.sun.enterprise.Switch;
import com.sun.enterprise.log.Log;
import com.sun.enterprise.config.serverbeans.Applications;
import com.sun.enterprise.config.serverbeans.DasConfig;
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.ServerXPathHelper;
import com.sun.enterprise.config.ConfigBeansFactory;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.instance.InstanceFactory;
import com.sun.enterprise.instance.InstanceEnvironment;
import com.sun.enterprise.instance.AppsManager;
import com.sun.enterprise.instance.EjbModulesManager;
import com.sun.enterprise.instance.ConnectorModulesManager;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.logging.LogDomains;
import com.sun.enterprise.server.ServerContext;
import com.sun.appserv.server.ServerLifecycle;
import com.sun.appserv.server.ServerLifecycleException;
import com.sun.appserv.server.util.PreprocessorUtil;
import com.sun.enterprise.resource.ResourceInstaller;
/**
* This class implements the lifecycle methods used by the J2EE applications.
* It is responsible for loading and shutting down the applications.
*
* @author Nazrul Islam
* @since JDK 1.4
*/
public class ApplicationLifecycle implements ServerLifecycle {
/**
* Server is initializing subsystems and setting up the runtime environment.
* Prepare for the beginning of active use of the public methods of this
* subsystem. This method is called before any of the public methods of
* this subsystem are utilized.
*
* @param sc ServerContext the server runtime context.
*
* @exception IllegalStateException if this subsystem has already been
* started
* @exception ServerLifecycleException if this subsystem detects a fatal
* error that prevents this subsystem from being used
*/
public void onInitialization(ServerContext sc)
throws ServerLifecycleException {
// set system environment variables here
this._context = sc;
try {
// ---- J2EE APPLICATIONS ----------------------------------
// instance environment of this server instance
/*
InstanceEnvironment iEnv = sc.getInstanceEnvironment();
// shared class loader is used as the parent for the applications
ClassLoader sharedCL = sc.getSharedClassLoader();
AppsManager appsManager =
InstanceFactory.createAppsManager(iEnv, false);
*/
// manager for the j2ee applications
//this._applicationMgr = new ApplicationManager(appsManager,sharedCL);
this._applicationMgr = ManagerFactory.getApplicationManager();
// ---- STAND ALONE EJB MODULES --------------------------------
/*
// config manager for stand alone ejb modules
EjbModulesManager ejbModuleManager =
InstanceFactory.createEjbModuleManager(iEnv, false);
// manager for stand alone ejb modules
this._ejbMgr =
new StandAloneEJBModulesManager(ejbModuleManager, sharedCL);
*/
this._ejbMgr = ManagerFactory.getSAEJBModulesManager();
// ---- STAND ALONE Web MODULES --------------------------------
this._webMgr = ManagerFactory.getSAWebModulesManager();
// ---- STAND ALONE RAR MODULES --------------------------------
/*
// config manager for stand alone connector modules
ConnectorModulesManager connModuleManager =
InstanceFactory.createConnectorModuleManager(iEnv, false);
// manager for stand alone connector modules
this._connMgr = new StandAloneConnectorModulesManager(
connModuleManager, sharedCL);
*/
this._connMgr = ManagerFactory.getSAConnectorModulesManager();
this._connectorResLoader = new ConnectorResourcesLoader();
// ---- STAND ALONE APPLICATION CLIENT MODULES ----------------------
// manager for stand alone application client modules
this._acMgr = ManagerFactory.getSAACModulesManager();
} catch (ConfigException confEx) {
_logger.log(Level.SEVERE,
"core.config_exception_while_app_loading", confEx);
} catch (Throwable th) {
_logger.log(Level.SEVERE,
"core.unexpected_error_occured_while_app_loading", th);
}
}
/**
* Server is starting up applications
*
* @param sc ServerContext the server runtime context.
*
* @exception ServerLifecycleException if this subsystem detects a fatal
* error that prevents this subsystem from being used
*/
public void onStartup(ServerContext sc) throws ServerLifecycleException {
try {
// Loads the ResourceAdapter Configurations
this._connectorResLoader.loadRAConfigs();
// loads all deployed stand alone connector modules
// stand alone connectors are loaded first since
// their class paths gets added to the the shared
// class loader. Any application acceessing these
// rar modules otherwise will not be able them.
this._connMgr.load();
// Loads connector resources belonging to standalone rars.
// Skip the resources belonging to embedded rars
// Do not reload RAConfigs, they are loaded above
this._connectorResLoader.
loadConnectorResources();
// Now do recovery
ResourceInstaller installer =
Switch.getSwitch().getResourceInstaller();
installer.recoverXAResources();
// loads all deployed stand alone application client modules
this._acMgr.load();
// loads all deployed stand alone ejb modules
this._ejbMgr.load();
// loads all deployed stand alone web modules
this._webMgr.load();
// loads all deployed j2ee applications
this._applicationMgr.load();
// Loads connector resources belonging to embedded rars.
// Resources belonging to stand alone rars are already loaded
//this._connectorResLoader.load(!standAloneRarsResources);
} catch (Throwable th) {
_logger.log(Level.SEVERE,
"core.unexpected_error_occured_while_app_loading", th);
}
}
/**
* Server has complted loading the applications and is ready to serve
* requests.
*
* @param sc ServerContext the server runtime context.
*
* @exception ServerLifecycleException if this subsystem detects a fatal
* error that prevents this subsystem from being used
*/
public void onReady(ServerContext sc) throws ServerLifecycleException {
try {
ApplicationRegistry registry = ApplicationRegistry.getInstance();
Collection containers = null;
if (registry != null) {
containers = registry.getAllEjbContainers();
}
// call onReady on all the ejb bean containers available
// in this server instance
if (containers != null) {
Iterator iter = containers.iterator();
while (iter.hasNext()) {
Container container = (Container) iter.next();
if (container != null) {
container.onReady();
}
}
}
_logger.log(Level.FINE, "core.application_onReady_complete");
} catch (Throwable th) {
_logger.log(Level.SEVERE,
"core.unexpected_error_occured_while_app_onready", th);
}
// Starts the dynamic reload monitor thread. This thread monitors the
// $APP_ROOT/.reload file of every applicatons and stand alone ejb
// module. If the time stamp of these files are updated, this thread
// sends a callback to the listeners for a dynamic reload.
//
// <p> Also starts the auto deploy monitor thread. This monitors the
// $INSTANCE/autodeploy directory for new archives to be deployed.
// server configuration context
ConfigContext configCtx = sc.getConfigContext();
// applicatons node from server configuration
Applications applicationsBean = null;
DasConfig dasConfig = null;
// flag used to turn on/off the dynamic monitor thread
boolean monitor = false;
try {
//ROB: config changes
//applicationsBean =
//(Applications)ConfigBeansFactory.getConfigBeanByXPath(configCtx,
// ServerXPathHelper.XPATH_APPLICATIONS);
dasConfig = ServerBeansFactory.getDasConfigBean(configCtx);
//monitor = applicationsBean.isDynamicReloadEnabled();
monitor = dasConfig.isDynamicReloadEnabled();
} catch (ConfigException ce) {
_logger.log(Level.SEVERE,
"core.config_exception_while_dynamic_reloading", ce);
monitor = false;
}
// starts the dynamic reload monitor thread only if it is on
if (monitor) {
// reload monitor is initialized in application loader
ReloadMonitor reloadMonitor = ReloadMonitor.getInstance(2000l);
reloadMonitor.start();
}
/* Nazrul: Auto Deploy will be included in a subsequent release
// FIXME: get it from the applicationsBean
//boolean autoDeploy = false;
boolean autoDeploy = true;
// start the auto deploy monitor is turned ON in server configuration
if (autoDeploy) {
// FIXME: get it from the applicationsBean
long monitorIntv = 2000l;
// monitors the auto deploy directory
AutoDeployMonitor adm = AutoDeployMonitor.getInstance(monitorIntv);
// instance environment for this server
InstanceEnvironment env = this.context.getInstanceEnvironment();
// auto deploy directory
File autoDeployDir = new File(env.getAutoDeployDirPath());
// handles auto deploy callbacks
AutoDeployer autoDeployer = new AutoDeployer();
// monitor entry for the auto deploy dir
MonitorableEntry entry =
new MonitorableEntry(autoDeployDir, autoDeployer);
adm.addMonitorableEntry(entry);
// starts auto deploy monitor
adm.start();
}
*/
ContainerFactory cf = Switch.getSwitch().getContainerFactory();
try {
cf.restoreEJBTimers();
} catch (Exception ex) {
_logger.log(Level.SEVERE,
"ApplicationLifeCycle.onReady():: exception when calling " +
"restoreEJBTimers()", ex);
}
}
/**
* Server is shutting down applications
*
* @exception ServerLifecycleException if this subsystem detects a fatal
* error that prevents this subsystem from being used
*/
public void onShutdown() throws ServerLifecycleException {
if (this._applicationMgr == null) {
// not initialized
return;
}
try {
_logger.log(Level.INFO, "core.shutting_down_applications");
// first shuts down the dynamic reload monitor if running
this._applicationMgr.shutdown();
// application registry for this server instance
ApplicationRegistry registry = ApplicationRegistry.getInstance();
Collection containers = null;
if (registry != null) {
containers = registry.getAllEjbContainers();
}
// shuts down all the ejb bean containers available
// in this server instance
if (containers != null) {
Iterator iter = containers.iterator();
while (iter.hasNext()) {
Container container = (Container) iter.next();
if (container != null) {
container.onShutdown();
}
}
}
// After the applicationmanager shutdown, call stop method
// of all J2EE Connector 1.5 specification compliant, inbound and
// outbound resource adapters.
// This call to stop() of all deployed candidate connector modules
// is implemented in a concurrent fashion and this call times-out
// based on the shutdown-timeout-in-seconds attribute in domain.xml
_logger.log(Level.INFO, "core.shutting_down_resource_adapters");
this._connectorResLoader.stopActiveResourceAdapters();
_logger.log(Level.INFO, "core.ra_shutdown_complete");
_logger.log(Level.INFO, "core.application_shutdown_complete");
} catch (Throwable th) {
_logger.log(Level.SEVERE,
"core.unexpected_error_occured_while_app_shutdown", th);
}
}
/**
* Server is terminating the subsystems and the runtime environment.
* Gracefully terminate the active use of the public methods of this
* subsystem. This method should be the last one called on a given
* instance of this subsystem.
*
* @exception ServerLifecycleException if this subsystem detects a fatal
* error that prevents this subsystem from being used
*/
public void onTermination() throws ServerLifecycleException {
try {
// application registry for this server instance
ApplicationRegistry registry = ApplicationRegistry.getInstance();
Collection containers = null;
if (registry != null) {
containers = registry.getAllEjbContainers();
}
// final shut down call to all ejb containers
if (containers != null) {
Iterator iter = containers.iterator();
while (iter.hasNext()) {
Container container = (Container) iter.next();
if (container != null) {
container.onTermination();
}
}
}
} catch (Throwable th) {
_logger.log(Level.SEVERE,
"core.unexpected_error_occured_while_app_terminate", th);
}
}
// ---- VARIABLE(S) - PRIVATE ------------------------------------------
protected ServerContext _context = null;
protected ApplicationManager _applicationMgr = null;
protected StandAloneEJBModulesManager _ejbMgr = null;
protected StandAloneConnectorModulesManager _connMgr = null;
protected ConnectorResourcesLoader _connectorResLoader= null;
protected StandAloneAppClientModulesManager _acMgr = null;
protected DummyWebModuleManager _webMgr = null;
protected static Logger _logger=LogDomains.getLogger(LogDomains.CORE_LOGGER);
}
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