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/*
* ManagerFactory.java
*
* Created on March 28, 2003, 2:20 PM
*/
package com.sun.enterprise.server;
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.WebModulesManager;
import com.sun.enterprise.instance.ConnectorModulesManager;
import com.sun.enterprise.instance.AppclientModulesManager;
import com.sun.appserv.server.util.PreprocessorUtil;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.logging.LogDomains;
/**
*
* @author Sandhya E
*/
public final class ManagerFactory {
private ManagerFactory() { /* preclude instantiation */ }
/** J2EE Application Manager*/
private static ApplicationManager applicationManager;
/** Stand alone Connector module manager*/
private static StandAloneConnectorModulesManager saConnectorManager;
/** Stand alone Web module manager*/
private static DummyWebModuleManager saWebManager;
/** Stand alone Ejb module manager*/
private static StandAloneEJBModulesManager saEJBManager;
/** Stand alone Application Client module manager*/
private static StandAloneAppClientModulesManager saACManager;
/** Instance environment of current server context */
private static InstanceEnvironment iEnv;
/** shared class loader of current server context */
private static ClassLoader sharedCL;
/** logger to log core messages */
private static final Logger _logger = LogDomains.getLogger(LogDomains.CORE_LOGGER);
/**
* This method gets the Application Manager for this server context
* @return ApplicationManager
*/
public static synchronized ApplicationManager getApplicationManager() throws ConfigException{
if(applicationManager == null) {
AppsManager appsManager =
InstanceFactory.createAppsManager(getInstanceEnvironment(), false);
try {
if (appsManager.isByteCodePreprocessingEnabled()){
// Initialize the preprocessor. If for some reason there's a
// problem, the preprocessor will be disabled before we attempt
// to use it.
PreprocessorUtil.init
(appsManager.getBytecodeProcessorClassNames());
}
} catch (ConfigException confEx) {
_logger.log(Level.WARNING,
"bytecodepreprocessor.config_ex",
confEx);
_logger.log(Level.WARNING,
"bytecodepreprocessor.disabled");
}
// manager for the j2ee applications
applicationManager = new ApplicationManager(appsManager,getSharedClassLoader());
}
return applicationManager;
}
/**
* This method returns the stand alone connector module manager
* @return StandAloneConnectorModulesManager
*/
public static synchronized StandAloneConnectorModulesManager getSAConnectorModulesManager() throws ConfigException {
if(saConnectorManager == null) {
// config manager for stand alone connector modules
ConnectorModulesManager connModuleManager =
InstanceFactory.createConnectorModuleManager(getInstanceEnvironment(), false);
// manager for stand alone connector modules
saConnectorManager = new StandAloneConnectorModulesManager(
connModuleManager, getSharedClassLoader());
}
return saConnectorManager;
}
/**
* This method returns the *dummy* stand alone web modules manager. The returned manager
* does not anything but sending an event to ondemand initialization framework.
* @return StandAloneWebModulesManager
**/
public static synchronized DummyWebModuleManager getSAWebModulesManager() throws ConfigException {
if(saWebManager == null) {
// config manager for stand alone web modules
WebModulesManager webModuleManager = new WebModulesManager(getInstanceEnvironment());
saWebManager = new WebModuleDeployEventListener(webModuleManager, getSharedClassLoader());
}
return saWebManager;
}
/**
* This method returns the stand alone web modules manager
* @return StandAloneEjbModulesManager
*/
public static synchronized StandAloneEJBModulesManager getSAEJBModulesManager() throws ConfigException {
if(saEJBManager == null) {
// config manager for stand alone ejb modules
EjbModulesManager ejbModuleManager =
InstanceFactory.createEjbModuleManager(getInstanceEnvironment(), false);
// manager for stand alone ejb modules
saEJBManager = new StandAloneEJBModulesManager(ejbModuleManager, getSharedClassLoader());
}
return saEJBManager;
}
/**
* This method returns the stand alone application client module manager
* @return StandAloneAppClientModulesManager
*/
public static synchronized StandAloneAppClientModulesManager getSAACModulesManager()
throws ConfigException {
if(saACManager == null) {
// config manager for stand alone application client modules
AppclientModulesManager acModuleManager =
InstanceFactory.createAppclientModulesManager(getInstanceEnvironment());
// manager for stand alone application client modules
saACManager = new StandAloneAppClientModulesManager(
acModuleManager, getSharedClassLoader());
}
return saACManager;
}
/**
* Returns the instance environment of this server's runtime
* @return InstanceEnvironment
*/
private static synchronized InstanceEnvironment getInstanceEnvironment() {
if(iEnv == null) {
ServerContext sc = ApplicationServer.getServerContext();
iEnv = sc.getInstanceEnvironment();
}
return iEnv;
}
/**
* Returns the shared class loader
* @return ClassLoader
**/
private static synchronized ClassLoader getSharedClassLoader() {
if(sharedCL == null) {
ServerContext sc = ApplicationServer.getServerContext();
sharedCL = sc.getSharedClassLoader();
}
return sharedCL;
}
}
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